Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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21.04.2024 - 01:32
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Table – Description

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Field name
Type
Text
NPDID field
Date updated
Date sync NOD
ALBUSKJELL
Reservoir
Albuskjell produced gas and condensate from Maastrichtian and lower Paleocene chalk. The accumulation is located above a salt dome. The main reservoir is in the Upper Cretaceous Tor Formation, at a depth of 3200 metres. The overlying Ekofisk Formation has poorer reservoir quality and has hardly been drained. There are significant remaining resources.
43437
09.12.2023
21.04.2024
ALBUSKJELL
Recovery strategy
The field was produced by pressure depletion.
43437
28.02.2023
21.04.2024
ALBUSKJELL
Transport
The well stream was transported via pipeline to the Ekofisk Complex for export.
43437
28.02.2023
21.04.2024
ALBUSKJELL
Development
Albuskjell is a field in the southern part of the Norwegian sector in the North Sea, 20 kilometres west of the Ekofisk field. The water depth is 70 metres. Albuskjell was discovered in 1972, and the plan for development and operation (PDO) was approved in 1975. The field was developed with two steel installations for drilling and production. The production started in 1979.
43437
09.12.2023
21.04.2024
ALBUSKJELL
Status
Albuskjell was shut down in 1998, and the platforms were removed in 2011 and 2013, respectively. The field is currently being evaluated for redevelopment in combination with other decommissioned fields in the area.
43437
09.12.2023
21.04.2024
ALVE
Recovery strategy
The field is produced by pressure depletion.
4444332
28.02.2023
21.04.2024
ALVE
Transport
The oil is offloaded from the Norne FPSO and the gas is transported via the Norne pipeline to the Åsgard Transport System (ÅTS) and further to the Kårstø terminal for export.
4444332
28.02.2023
21.04.2024
ALVE
Reservoir
Alve produces oil and gas from sandstone of Early and Middle Jurassic age in the Tilje, Not and Garn Formations. The reservoir is at a depth of 3600 metres and has moderate to good quality.
4444332
12.12.2023
21.04.2024
ALVE
Status
Production from Alve is constrained by the commercial agreement with the Norne licence and the gas handling capacity on the Norne FPSO. Excess capacity on the FPSO in recent years has made it possible to process larger volumes of gas from Alve. The long-term activity on the field is to optimise production. An exemption from a PDO was granted for the development of the discovery 6507/3-8 Andvare in 2023. Andvare will be drilled and produced from an available well slot on Norne.
4444332
12.12.2023
21.04.2024
ALVE
Development
Alve is a field in the Norwegian Sea, 16 kilometres southwest of the Norne field. The water depth is 370 metres. Alve was discovered in 1990, and the plan for development and operation (PDO) was approved in 2007. The development concept is a standard subsea template with four production wells. Alve is tied to the Norne production, storage and offloading vessel (FPSO) by a pipeline. The production started in 2009.
4444332
12.12.2023
21.04.2024
ALVE NORD
Recovery strategy
The field will be produced by pressure depletion.
42002483
12.08.2023
21.04.2024
ALVE NORD
Reservoir
The reservoirs contain oil and gas in the Lower Jurassic Båt Group and the Middle Jurassic Fangst Group, and gas in the Early Cretaceous Lange Formation. The Lange Formation reservoir is at a depth of 3000 metres and the Jurassic reservoirs at about 3600-4000 metres. The reservoir properties are varying.
42002483
09.12.2023
21.04.2024
ALVE NORD
Development
Alve Nord is a field in the northern part of the Norwegian Sea, 40 kilometres northeast of the Skarv field. The water depth is 380 metres. Alve Nord was discovered in 2011, and the plan for development and operation (PDO) was approved in June 2023. The development concept includes a subsea template with two production wells tied-back to the Skarv floating, production, storage and offloading vessel (FPSO).
42002483
09.12.2023
21.04.2024
ALVE NORD
Transport
The gas will be exported via the Åsgard Transport System (ÅTS) to the terminal at Kårstø. Oil and condensate will be offloaded from the Skarv FPSO to shuttle tankers.
42002483
09.12.2023
21.04.2024
ALVE NORD
Status
Alve Nord is being developed together with Ørn and Idun Nord as part of the Skarv Satellite Project (SSP). The production is planned to start in 2027.
42002483
12.08.2023
21.04.2024
ALVHEIM
Recovery strategy
The field is produced by natural water drive from an underlying aquifer.
2845712
28.02.2023
21.04.2024
ALVHEIM
Transport
The oil is stabilised and stored on the Alvheim FPSO before it is exported by tankers. Processed rich gas is transported by pipeline from Alvheim to the Scottish Area Gas Evacuation (SAGE) pipeline on the UK continental shelf.
2845712
28.02.2023
21.04.2024
ALVHEIM
Reservoir
Alvheim produces oil and gas from Paleocene sandstone in the Hermod and Heimdal Formations. The reservoirs are located in submarine fan deposits and injectites, mostly at depths of 2100-2200 metres. The reservoir quality is good.
2845712
13.12.2023
21.04.2024
ALVHEIM
Status
Due to greater in-place volumes and longer infill wells, Alvheim has had a significant increase in the estimated recoverable volumes of oil and gas since the PDO. Kobra East and Gekko have been put into production in 2023, and will contribute to increased production levels at Alvheim. Tie-back of the Tyrving field to the Alvheim FPSO is under development.
2845712
13.12.2023
21.04.2024
ALVHEIM
Development
Alvheim is a field in the central part of the North Sea, ten kilometres west of the Heimdal field and near the border to the UK sector. The field includes the six discoveries Kameleon, Boa, Kneler, Viper, Kobra and Gekko. Boa lies partly in the UK sector. The water depth is 120-130 metres. Alvheim was discovered in 1998, and the plan for development and operation (PDO) was approved in 2004. The field is developed with subsea wells tied to a production, storage and offloading vessel, Alvheim FPSO. The production started in 2008. The Vilje, Volund, Bøyla and Skogul fields are tied-back to the Alvheim FPSO. In 2022, a PDO for the development of the accumulations Kobra East and Gekko was approved.
2845712
13.12.2023
21.04.2024
ATLA
Transport
The well stream was transported via the Skirne/Byggve subsea facility to Heimdal for processing and export.
21106284
16.08.2023
21.04.2024
ATLA
Reservoir
Atla produced gas from Middle Jurassic sandstone in the Brent Group. The reservoir is at a depth of 2700 metres and has good quality.
21106284
09.12.2023
21.04.2024
ATLA
Status
Atla was shut down in June 2023, and decommissioning is ongoing.
21106284
19.08.2023
21.04.2024
ATLA
Development
Atla is a field in the central part of the North Sea, 20 kilometres northeast of the Heimdal field. The water depth is 120 metres. Atla was discovered in 2010, and the plan for development and operation (PDO) was approved in 2011. The field was developed with one production well which was connected to a subsea facility and was tied-back to Heimdal via the Skirne field. The production started in 2012.
21106284
09.12.2023
21.04.2024
ATLA
Recovery strategy
The field was produced by pressure depletion.
21106284
16.08.2023
21.04.2024
BALDER
Development
Balder is a field in the central part of the North Sea, just west of the Grane field. The water depth is 125 metres. Balder was discovered in 1967, and the initial plan for development and operation (PDO) was approved in 1996. The production started in 1999. The field has been developed with subsea wells tied-back to the Balder production, storage and offloading vessel (FPSO). The Ringhorne deposit, located nine kilometres north of the Balder FPSO, is included in the Balder complex. Ringhorne is developed with a combined accommodation, drilling and wellhead facility, tied-back to the Balder FPSO and Jotun FPSO for processing, crude oil storage and gas export. The nearby field Ringhorne Øst is also tied-back to Balder via the Ringhorne platform. The PDO for Ringhorne Jura was approved in 2000, and the production started in 2003. The Ringhorne Vest PDO exemption was approved in 2003, and the production started in 2004. An amended PDO for Ringhorne was approved in 2007.
43562
13.12.2023
21.04.2024
BALDER
Status
A revised PDO for Balder and Ringhorne was approved in 2020. The development plan includes lifetime extension and relocation of the Jotun FPSO, and drilling of new subsea wells. The Jotun FPSO is currently at a shipyard undergoing maintenance and upgrades. It is scheduled to be back on the field in 2024. Until then, excess gas is being injected in the Balder and Ringhorne Øst fields. Another ongoing project is aiming to utilise the available infrastructure in the area to maximise the recovery from the field.
43562
24.02.2024
21.04.2024
BALDER
Transport
The oil is transported by tankers. Excess gas from Balder and Ringhorne is exported from the Jotun FPSO through the Statpipe system to Kårstø and from there on to continental Europe.
43562
28.02.2023
21.04.2024
BALDER
Recovery strategy
Balder and Ringhorne produce primarily by natural aquifer drive, but reinjection of produced water is used for pressure support, especially into the Ringhorne Jurassic reservoir. Excess water is injected into the Utsira Formation. Gas is also reinjected if the gas export system is down.
43562
28.02.2023
21.04.2024
BALDER
Reservoir
Balder, including Ringhorne, produces oil from several separate deposits in sandstone of Jurassic, Paleocene and Eocene age. Balder produces from the Heimdal and Hermod Formations as well as from the injected sand complex above them. Ringhorne produces from the Hugin, Ty and Hermod Formations. The reservoirs are of good to very good quality. The Balder reservoir is at a depth of 1700 metres and the Ringhorne reservoir at a depth of 1,900 metres.
43562
12.12.2023
21.04.2024
BAUGE
Reservoir
The main reservoirs contain oil in Lower and Middle Jurassic sandstone in the Tilje and Ile Formations, at a depth of 2700 metres. They are segmented and have moderate quality.
29446221
12.12.2023
21.04.2024
BAUGE
Status
The production has been lower than expected.
29446221
12.12.2023
21.04.2024
BAUGE
Recovery strategy
The field is produced by pressure depletion. Pressure maintenance with water injection is planned to start few years after production start-up.
29446221
19.04.2023
21.04.2024
BAUGE
Development
Bauge is a field on the Halten bank in the southern Norwegian Sea, 15 kilometres east of the Njord field. The water depth is 280 metres. Bauge was discovered in 2013, and the plan for development and operation (PDO) was approved in 2017. The field is developed with two production wells tied-back to the Njord A facility and a water injection well drilled from the subsea template on the Hyme field. The production started in April 2023.
29446221
12.12.2023
21.04.2024
BAUGE
Transport
The well stream is transported to the Njord A platform for processing. Produced oil is transported by pipeline to the storage vessel Njord B, and further by tankers to the market. Gas from the field is exported by pipeline via the Åsgard Transport System (ÅTS) and further to the Kårstø terminal.
29446221
19.04.2023
21.04.2024
BERLING
Status
The field is under development and the production is planned to start in 2028.
42002473
12.08.2023
21.04.2024
BERLING
Reservoir
Berling contains gas and condensate. The Berling Garn reservoir is in the Middle Jurassic Garn Formation. It is at a depth of 4100 metres and has high pressure and high temperature (HPHT). The reservoir is structurally complex and has varying reservoir quality. The Berling Breiflabb reservoir is in intra-Lange Formation turbidite sandstone of Late Cretaceous age at a depth of 3900 metres.
42002473
14.12.2023
21.04.2024
BERLING
Development
Berling is a field on the Halten Terrace in the Norwegian Sea, 20 kilometres west of the Åsgard field. Berling consists of two accumulations, Berling Garn and Berling Breiflabb. The water depth is 280 metres. Berling was discovered in 2018, and the plan for development and operation (PDO) was approved in June 2023. The development concept includes a subsea template with four slots tied-back to the Åsgard B facility.
42002473
14.12.2023
21.04.2024
BERLING
Transport
The well stream will be transported by pipeline to Åsgard B for processing. Condensate will be transferred to Åsgard A and Åsgard C for storage and export by shuttle tankers to the market. The rich gas will be transported via the Åsgard Transport System (ÅTS) for further processing at the Kårstø terminal.
42002473
14.12.2023
21.04.2024
BERLING
Recovery strategy
The field will be produced by pressure depletion.
42002473
12.08.2023
21.04.2024
BLANE
Recovery strategy
Until 2019, the field was produced with pressure support from injection of produced water from the Blane, Tambar and Ula fields. The field is now produced by pressure depletion. In addition, gas lift is used in the wells.
3437650
28.02.2023
21.04.2024
BLANE
Reservoir
Blane produces oil from Paleocene sandstone in the Forties Formation. The reservoir is at a depth of 3100 metres and has moderate to good quality.
3437650
09.12.2023
21.04.2024
BLANE
Status
Production from the field has generally been good, but the water cut is increasing. The production is restricted by oil-in-water limits and technical problems.
3437650
09.12.2023
21.04.2024
BLANE
Transport
The well stream is transported by pipeline to the Ula field for processing. The oil is exported further to Teesside in the UK.
3437650
28.02.2023
21.04.2024
BLANE
Development
Blane is a field in the southern part of the Norwegian sector in the North Sea, 35 kilometres southwest of the Ula field. The field is located on the border to the UK sector and the Norwegian share of the field is 18 per cent. The water depth is 70 metres. Blane was discovered in 1989, and the plan for development and operation (PDO) was approved in 2005. The field has been developed with a subsea facility on the British continental shelf with two horizontal production wells tied-back to the Ula field. The production started in 2007.
3437650
13.12.2023
21.04.2024
BRAGE
Recovery strategy
The recovery strategy in the Statfjord and Brent Groups and Fensfjord Formation is water injection. The Brent Group had earlier been produced by water alternating gas (WAG) injection. The Sognefjord Formation is produced by depletion with pressure support from the aquifer.
43651
13.12.2023
21.04.2024
BRAGE
Reservoir
Brage produces oil from sandstone of Early Jurassic age in the Statfjord Group, and sandstone of Middle Jurassic age in the Brent Group and the Fensfjord Formation. There is also oil and gas in Upper Jurassic sandstone in the Sognefjord Formation. The reservoirs are at depths of 2000-2300 metres. The reservoir quality varies from poor to excellent.
43651
13.12.2023
21.04.2024
BRAGE
Transport
The oil is transported by pipeline to the Oseberg field and further through the Oseberg Transport System (OTS) pipeline to the Sture terminal. A gas pipeline is tied-back to Statpipe.
43651
28.02.2023
21.04.2024
BRAGE
Development
Brage is a field in the northern part of the North Sea, ten kilometres east of the Oseberg field. The water depth is 140 metres. Brage was discovered in 1980, and the plan for development and operation (PDO) was approved in 1990. The field has been developed with an integrated production, drilling and accommodation facility with a steel jacket. The production started in 1993. A PDO for Brage Sognefjord was approved in 1998. PDO exemptions were granted for the Brent Ness, Bowmore Brent and Talisker East Brent accumulations in 2004, 2007 and 2022, respectively.
43651
13.12.2023
21.04.2024
BRAGE
Status
Brage has been producing for a long time, and work is still ongoing to find new ways of increasing recovery from the field. New wells are being drilled.
43651
28.02.2023
21.04.2024
BREIDABLIKK
Status
The field startet production in October 2023.
38702206
21.10.2023
21.04.2024
BREIDABLIKK
Recovery strategy
The field is produced by pressure depletion, assisted by gas lift in the production wells.
38702206
21.10.2023
21.04.2024
BREIDABLIKK
Reservoir
The main reservoirs contain oil in Paleocene sandstone in the Heimdal Formation, at a depth of 1700 metres. The reservoirs have good quality, with little variation in reservoir properties. Above the Heimdal Formation, oil is present in a sand injectite complex in shales of Paleocene and Eocene age in the Lista, Sele and Balder Formations.
38702206
28.02.2023
21.04.2024
BREIDABLIKK
Transport
The oil is transported from Grane to the onshore terminal at Sture for storage and export.
38702206
21.10.2023
21.04.2024
BREIDABLIKK
Development
Breidablikk is a field in the central part of the North Sea, ten kilometers northeast of the Grane field. The water depth is 130 metres. Breidablikk includes two discoveries, D-structure and F-structure, discovered in 1992 and 2013, respectively. The plan for development and operation (PDO) was approved in 2021. The field is developed with four subsea templates tied-back to the Grane platform.
38702206
21.10.2023
21.04.2024
BRYNHILD
Status
Brynhild was shut down in 2018, and the subsea template was removed in 2021.
21123063
09.12.2023
21.04.2024
BRYNHILD
Development
Brynhild is a field in the southern part of the Norwegian sector in the North Sea, 10 kilometres from the UK sector and 55 kilometres northwest of the Ula field. The water depth is 80 metres. Brynhild was discovered in 1992, and the plan for development and operation (PDO) was approved in 2011. The development concept was a subsea template including four wells, tied-in to the Haewene Brim production, storage and offloading vessel (FPSO) located on the Pierce field in the British sector. The production started in 2014.
21123063
09.12.2023
21.04.2024
BRYNHILD
Reservoir
Brynhild produced oil from sandstone of Late Jurassic age in the Ula Formation. The reservoir is at a depth of 3300 metres, and the reservoir conditions are close to high pressure, high temperature (HPHT) conditions.
21123063
09.12.2023
21.04.2024
BRYNHILD
Recovery strategy
The field was produced by pressure support from water injection. Water for injection was supplied from the Pierce field.
21123063
28.02.2023
21.04.2024
BRYNHILD
Transport
The well stream was transported by pipeline to the Haewene Brim FPSO for processing. The processed oil was exported by shuttle tankers to the market, and gas was reinjected into the Pierce field.
21123063
28.02.2023
21.04.2024
BYRDING
Development
Byrding is a field in the northern part of the North Sea, four kilometres north of the Fram H-Nord field and 30 kilometres north of the Troll C facility. The water depth is 360 metres. Byrding was discovered in 2005, and the plan for development and operation (PDO) was approved in 2017. The development concept is a two-branch multilateral (MLT) well drilled from the Fram H-Nord template. The production started in 2017.
28975067
13.12.2023
21.04.2024
BYRDING
Recovery strategy
The field is produced by pressure depletion.
28975067
28.02.2023
21.04.2024
BYRDING
Reservoir
Byrding produces oil and gas from turbiditic sandstone of Late Jurassic age in the Heather Formation. The reservoir is at a depth of 3050 metres. It is structurally complex and has good reservoir quality.
28975067
13.12.2023
21.04.2024
BYRDING
Status
There has been no production from Byrding in 2023. A recompletion of the well is planned for 2024 to put it back in production.
28975067
13.12.2023
21.04.2024
BYRDING
Transport
The well stream is routed through Fram Vest to Troll C for processing. The oil is transported further in the Troll Oil Pipeline II to the Mongstad terminal, and the gas is exported via Troll A to the Kollsnes terminal.
28975067
13.12.2023
21.04.2024
BØYLA
Reservoir
Bøyla produces oil from sandstone of late Paleocene to early Eocene age in the Hermod Formation. The reservoir is of good quality and lies in a channelised submarine fan system at a depth of 2100 metres.
22492497
13.12.2023
21.04.2024
BØYLA
Recovery strategy
The field is produced with pressure support from water injection. Gas lift is also necessary to support flow in the wells.
22492497
28.02.2023
21.04.2024
BØYLA
Development
Bøyla is a field in the central part of the North Sea, 28 kilometres south of the Alvheim field. The water depth is 120 metres. Bøyla was discovered in 2009, and the plan for development and operation (PDO) was approved in 2012. The field is developed with a subsea template including two horizontal production wells and one water injection well. The field is tied-back to the Alvheim production, storage and offloading vessel (FPSO). The production started in 2015. Test production from the nearby discovery 24/9-12 S (Frosk) started in 2019 and provided the basis for a PDO approved in 2022 for including Frosk in the Bøyla field.
22492497
13.12.2023
21.04.2024
BØYLA
Status
Production from the Bøyla wells is decreasing and the wells are produced alternating with the Frosk wells.
22492497
13.12.2023
21.04.2024
BØYLA
Transport
The well stream is transported by pipeline to the Alvheim FPSO, where the oil is stabilised and stored before it is exported by tankers. Processed rich gas is transported by pipeline from Alvheim to the Scottish Area Gas Evacuation (SAGE) pipeline on the UK continental shelf.
22492497
28.02.2023
21.04.2024
COD
Development
Cod is a field in the southern part of the Norwegian sector in the North Sea, 75 kilometres northwest of the Ekofisk field. The water depth is 75 metres. Cod was discovered in 1968, and the plan for development and operation (PDO) was approved in 1973. The field was developed with a combined drilling, production and accommodation facility. The production started in 1977.
43785
09.12.2023
21.04.2024
COD
Status
Cod was shut down in 1998, and the facility was removed in 2013.
43785
09.12.2023
21.04.2024
COD
Recovery strategy
The field was produced by pressure depletion.
43785
28.02.2023
21.04.2024
COD
Reservoir
The Cod field produced gas and condensate from deep-marine turbiditic sandstone of Paleocene age in the Forties Formation. Cod has a complex structure with several separate reservoirs at a depth of 3000 metres.
43785
09.12.2023
21.04.2024
COD
Transport
The well stream was sent via pipeline to the Ekofisk Complex for export.
43785
28.02.2023
21.04.2024
DRAUGEN
Transport
The oil is offloaded via a floating loading-buoy and exported by tankers. The gas is transported via the Åsgard Transport System (ÅTS) to the Kårstø terminal.
43758
13.12.2023
21.04.2024
DRAUGEN
Reservoir
Draugen produces oil from two formations. The main reservoir is in sandstone of Late Jurassic age in the Rogn Formation. The western part of the field also produces from sandstone of Middle Jurassic age in the Garn Formation. The reservoirs are at a depth of 1600 metres. They are relatively homogeneous and have good quality.
43758
13.12.2023
21.04.2024
DRAUGEN
Status
Several projects are ongoing to enable future profitable production from Draugen, such as power from shore, lifetime extension and subsea pump upgrade. The Hasselmus well was put on stream in 2023, and now provides sufficient gas for both power generation and gas export. Two observation wells were drilled in 2023.
43758
13.12.2023
21.04.2024
DRAUGEN
Development
Draugen is a field in the southern part of the Norwegian Sea. The water depth is 250 metres. Draugen was discovered in 1984, and the plan for development and production (PDO) was approved in 1988. The field has been developed with a concrete fixed facility and integrated topside, and has both platform and subsea wells. Stabilised oil is stored in tanks at the base of the facility. Two pipelines connect the facility to a floating loading-buoy. The production started in 1993. A PDO exemption for the subsea tie-back of the discovery 6407/9-9 (Hasselmus) was granted in 2021.
43758
13.12.2023
21.04.2024
DRAUGEN
Recovery strategy
The main production mechanism is natural pressure support from the aquifer, with additional water injection from the south.
43758
13.12.2023
21.04.2024
DUVA
Transport
The well stream is routed to the Gjøa platform for processing and export. The oil is transported further through the Troll Oil Pipeline II to the Mongstad terminal, and the gas is exported via the Far North Liquids and Associated Gas System (FLAGS) pipeline to St Fergus in the UK.
34833026
28.02.2023
21.04.2024
DUVA
Recovery strategy
The Field is produced by pressure depletion and gas expansion in the gas cap.
34833026
28.02.2023
21.04.2024
DUVA
Reservoir
The reservoir contains oil and gas in turbiditic sandstone of Early Cretaceous age in the Agat Formation. It is at a depth of 2200 metres and has good quality.
34833026
13.12.2023
21.04.2024
DUVA
Development
Duva is a field in the northern part of the North Sea, six kilometres northeast of the Gjøa field. The water depth is 350 metres. Duva was discovered in 2016, and the plan for development and operation (PDO) was approved in 2019. Duva is developed with a 4-slot subsea template including three oil production wells and one gas production well tied-back to the Gjøa platform. The production started in 2021.
34833026
13.12.2023
21.04.2024
DUVA
Status
Production in 2023 has been higher than anticipated, due to additional processing capacity available at the Gjøa platform.
34833026
13.12.2023
21.04.2024
DVALIN
Recovery strategy
The field is produced by pressure depletion.
29393934
28.02.2023
21.04.2024
DVALIN
Development
Dvalin is a field in the central part of the Norwegian Sea, 15 kilometres northwest of the Heidrun field. It consists of three separate structures: Dvalin East, West and North that were proven in 2010, 2012 and 2021, respectively. The water depth is between 340 and 400 metres. The plan for development and production (PDO) of the East and West structures was approved in 2017. The development concept is a subsea template with four production wells tied-back to the Heidrun platform. The production started in 2020. A PDO for Dvalin North was approved in June 2023, and includes a subsea template with three production wells.
29393934
13.12.2023
21.04.2024
DVALIN
Status
The production from Dvalin, which was put on hold due to high mercury content, started again in July 2023 after a mercury removal solution for the export gas was installed at Nyhamna.
29393934
16.08.2023
21.04.2024
DVALIN
Transport
The well stream is transported via pipeline to Heidrun for processing at a dedicated gas processing module. The gas is exported via Polarled to Nyhamna and then via Gassled to the market.
29393934
13.12.2023
21.04.2024
DVALIN
Reservoir
Dvalin contains gas in Middle Jurassic sandstone in the Ile and Garn Formations. The reservoirs are at a depth of 4500 metres and have high pressure and high temperature (HPHT). The homogeneous shallow marine Garn sandstone has good reservoir quality, while the more heterogeneous and fine-grained Ile sandstone has less favourable reservoir properties.
29393934
13.12.2023
21.04.2024
EDDA
Reservoir
Edda produced oil from Maastrichtian and lower Paleocene chalk. The main reservoir is in the Upper Cretaceous Tor Formation, at a depth of 3100 metres.
43541
09.12.2023
21.04.2024
EDDA
Status
Edda was shut down in 1998, and the facility was removed in 2012.
43541
09.12.2023
21.04.2024
EDDA
Transport
The well stream was sent via pipeline to the Ekofisk Complex for export.
43541
28.02.2023
21.04.2024
EDDA
Recovery strategy
The field was produced with pressure depletion. Starting in 1988, gas from the Tommeliten Gamma field was transported to Edda and used for gas lift in the wells.
43541
28.02.2023
21.04.2024
EDDA
Development
Edda is a field in the southern part of the Norwegian sector in the North Sea, 12 kilometres southwest of the Ekofisk field. The water depth is 70 metres. Edda was discovered in 1972, and the plan for development and operation (PDO) was approved in 1975. The field was developed with a manned wellhead and production facility and started production in 1979.
43541
28.02.2023
21.04.2024
EDVARD GRIEG
Reservoir
Edvard Grieg produces undersaturated oil from alluvial, aeolian and shallow marine sandstone and conglomerate of Late Triassic to Early Cretaceous age. The reservoir is at a depth of 1900 metres. The eservoir quality varies from moderate to very good in marine and aeolian sandstone, while the quality is poorer in alluvial sandstone and conglomerate. Oil is also proven in the underlying basement.
21675433
13.12.2023
21.04.2024
EDVARD GRIEG
Transport
The oil is exported by pipeline to the Grane Oil Pipeline, which is connected to the Sture terminal. The gas is exported in a separate pipeline to the Scottish Area Gas Evacuation (SAGE) system in the UK.
21675433
28.02.2023
21.04.2024
EDVARD GRIEG
Status
Edvard Grieg production went off plateau in 2023. The field has been producing better than expected and the recoverable volumes have increased significantly since the PDO due to excellent reservoir performance. Two infill campaigns were finished in 2021 and 2023. Test production from the Troldhaugen discovery started in 2021 and has continued in 2023.
21675433
13.12.2023
21.04.2024
EDVARD GRIEG
Recovery strategy
The field is produced by pressure support from water injection.
21675433
28.02.2023
21.04.2024
EDVARD GRIEG
Development
Edvard Grieg is a field in the Utsira High area in the central North Sea, 35 kilometres south of the Grane and Balder fields. The water depth is 110 metres. Edvard Grieg was discovered in 2007, and the plan for development and operation (PDO) was approved in 2012. The field is developed with a fixed installation with a steel jacket and full process facility, and it utilises a jack-up rig for drilling and completion of wells. The production started in 2015. The Edvard Grieg installation supplies power to the Ivar Aasen field and processes the well stream from Ivar Aasen. The Solveig field is tied-back to Edvard Grieg. The Troldhaugen discovery is temporarily tied-back to Edvard Grieg for test production.
21675433
13.12.2023
21.04.2024
EIRIN
Transport
The well stream will be routed by pipeline to the Gina Krog facility for final processing and further transport.
42002492
19.01.2024
21.04.2024
EIRIN
Development
Eirin is a field in the central North Sea, ten kilometres northwest of the Gina Krog field. The water depth is 120 metres. Eirin was discovered in 1978, and the plan for development and operation (PDO) was approved in January 2024. The development concept includes a subsea template with two wells tied-back to the Gina Krog platform.
42002492
19.01.2024
21.04.2024
EIRIN
Status
The field is under development, and the production is planned to start in 2025.
42002492
19.01.2024
21.04.2024
EIRIN
Reservoir
The reservoirs contain gas in the Skagerrak Formation of Middle to Late Triassic age and in the Hugin Formation of Middle Jurassic age. The reservoirs are at depths of 3880 to 3950 metres and have varying properties.
42002492
19.01.2024
21.04.2024
EIRIN
Recovery strategy
The field will be produced by pressure depletion.
42002492
19.01.2024
21.04.2024
EKOFISK
Transport
Oil and gas are routed to export pipelines via the processing facility at Ekofisk J. Gas from the Ekofisk area is transported via the Norpipe gas pipeline to Emden in Germany, while the oil is sent via the Norpipe oil pipeline to Teesside in the UK.
43506
28.02.2023
21.04.2024
EKOFISK
Development
Ekofisk is a field in the southern part of the Norwegian sector in the North Sea. The water depth is 70 metres. Ekofisk was discovered in 1969, and the initial plan for development and operation (PDO) was approved in 1972. Test production was initiated in 1971 and ordinary production started in 1972. The production was initially routed to tankships until a concrete storage tank was installed in 1973. Since then, the field has been further developed with many facilities, including facilities for associated fields and export pipelines. Several of the initial facilities have already been removed or are awaiting decommissioning. The initial field development started with three production platforms: Ekofisk A, Ekofisk B and Ekofisk C. Wellhead platform Ekofisk X and process platform Ekofisk J were installed in 1996 and 1998, respectively, as part of the Ekofisk II project. In 2005, wellhead platform Ekofisk M was installed as part of the Ekofisk Growth Project. A plan for water injection at Ekofisk was approved in 1983. Ekofisk K, which is the main injection facility, started water injection in 1987 and is still in operation. There had also been water injection at Ekofisk W from 1989 until 2009, when Ekofisk W was shut down and replaced by a subsea template, Ekofisk VA. A PDO for the development of Ekofisk South was approved in 2011. The project included two new installations in the southern part of the field: production platform Ekofisk Z and a subsea template for water injection, Ekofisk VB. Injection from Ekofisk VB and production from Ekofisk Z started in 2013. The accommodation facilities Ekofisk H and Ekofisk Q were replaced by Ekofisk L in 2014. An amended PDO for an additional water injection template, Ekofisk VC, was approved in 2017.
43506
13.12.2023
21.04.2024
EKOFISK
Recovery strategy
Ekofisk was originally produced by pressure depletion and had an expected recovery factor of 17 per cent. Since then, comprehensive water injection has contributed to a substantial increase in oil recovery. Large-scale water injection started in 1987, and in subsequent years, the area for water injection has been extended in several phases. Experience has proven that water displaces the oil much more effectively than anticipated, and the expected final recovery factor for Ekofisk is now estimated to be over 50 per cent. In addition to the water injection, compaction of the soft chalk provides extra force to drainage of the field. The reservoir compaction has resulted in about 10 metres subsidence of the seabed, especially in the central part of the field. It is expected that the subsidence will continue, but at a much lower rate.
43506
28.02.2023
21.04.2024
EKOFISK
Status
The production from Ekofisk is maintained at a high level through continuous water injection, drilling of production and injection wells, and well interventions. Water injection is extended in the southern part of the field. Key challenges are identifying the remaining oil pockets in a mature, waterflooded reservoir, as well as handling the increasing volumes of produced water. Infill drilling on Ekofisk is expected to continue throughout the lifetime of the field. Various drilling methods are being studied to reduce drilling costs, for example coiled tubing drilling. In 2022, the production licence 018, which includes the Ekofisk field, was extended until 2048.
43506
13.12.2023
21.04.2024
EKOFISK
Reservoir
Ekofisk produces oil from naturally fractured chalk of Late Cretaceous age in the Tor Formation and early Paleocene age in the Ekofisk Formation. The reservoir rock has high porosity, but low permeability. The reservoir has an oil column of more than 300 metres and is at a depth of 3000 metres.
43506
13.12.2023
21.04.2024
ELDFISK
Reservoir
Eldfisk produces oil from chalk of Late Cretaceous and early Paleocene age in the Hod, Tor and Ekofisk Formations. The reservoir rock has high porosity, but low permeability. Natural fracturing allows the reservoir fluids to flow more easily. The field consists of three structures: Alpha, Bravo and Eldfisk Øst. The reservoirs are at depths of 2700-2900 metres.
43527
13.12.2023
21.04.2024
ELDFISK
Transport
Oil and gas are sent to the export pipelines via the Ekofisk Centre. Gas from the Ekofisk area is transported via the Norpipe gas pipeline to Emden in Germany, while the oil is sent via the Norpipe oil pipeline to Teesside in the UK.
43527
28.02.2023
21.04.2024
ELDFISK
Status
In 2022, the production licence 018, which includes the Eldfisk field, was extended until 2048. Drilling of additional wells on Eldfisk is continuing. Drilling targets are also being matured in the eastern structure, Eldfisk Øst. The development of Eldfisk North is ongoing and start-up of production is expected early in 2024.
43527
13.12.2023
21.04.2024
ELDFISK
Recovery strategy
Eldfisk was originally produced by pressure depletion. In 1999, water injection was implemented through horizontal injection wells. Pressure depletion and the water weakening effect have caused reservoir compaction, which in turn has resulted in several metres of seabed subsidence. The Eldfisk II project extends waterflooding on the field.
43527
28.02.2023
21.04.2024
ELDFISK
Development
Eldfisk is a field in the southern part of the Norwegian sector in the North Sea, 10 kilometres south of the Ekofisk field. The water depth is 70 metres. Eldfisk was discovered in 1970, and the plan for development and operation (PDO) was approved in 1975. The initial development consisted of three facilities: Eldfisk B (a combined drilling, wellhead and process facility), and Eldfisk A and Eldfisk FTP (wellhead and process facilities). The production started in 1979. A PDO for water injection was approved in 1997, and the injection facility Eldfisk E was installed in 1999. This facility also provides some the water to Ekofisk K for injection on the Ekofisk field. A PDO for Eldfisk II was approved in 2011, and included a new integrated facility, Eldfisk S, connected by bridge to Eldfisk E. The production from Eldfisk S started in 2015. This facility replaces several functions of Eldfisk A and Eldfisk FTP. Eldfisk A is converted into a wellhead platform and Eldfisk FTP is used as bridge-support facility. The Embla field, located south of Eldfisk, is tied to Eldfisk S. An amended PDO for the subsea development of the northern part of the field, Eldfisk North, was approved in 2022.
43527
13.12.2023
21.04.2024
EMBLA
Reservoir
Embla produces oil and gas from segmented sandstone and conglomerate of Devonian and Permian age. The reservoir is at a depth of more than 4000 metres and has high pressure and high temperature (HPHT). It has a complex, highly faulted structure.
43534
13.12.2023
21.04.2024
EMBLA
Development
Embla is a field in the southern part of the Norwegian sector in the North Sea, south of the Eldfisk field. The water depth is 70 metres. Already in 1974, a well tested oil on Embla, but it was not until 1988 that the field was discovered. The plan for development and operation (PDO) was approved in 1990. The field has been developed with an unmanned wellhead facility, which is remotely controlled from Eldfisk. Production started in 1993. In 1995, an amended PDO for Embla was approved.
43534
13.12.2023
21.04.2024
EMBLA
Status
In 2022, the production licence 018, which includes the Embla field, was extended until 2048. As part of the Eldfisk II development project, Embla was tied to the Eldfisk S facility, extending the lifetime for Embla. Because of the complexity of the reservoir, there are no plans other than optimising the existing production wells. Currently, there are four active producers.
43534
13.12.2023
21.04.2024
EMBLA
Recovery strategy
The field is produced by pressure depletion.
43534
28.02.2023
21.04.2024
EMBLA
Transport
Oil and gas are transported by pipeline to the Eldfisk S facility for processing, and further to the Ekofisk Centre for export. Gas from the Ekofisk area is transported via the Norpipe gas pipeline to Emden in Germany, while the oil is sent via the Norpipe oil pipeline to Teesside in the UK.
43534
28.02.2023
21.04.2024
ENOCH
Development
Enoch is a field in the central part of the North Sea on the border to the British sector, ten kilometres northwest of the Gina Krog field. The Norwegian share of the field is 20 per cent. Enoch was proven in 1985, and the plan for development and operation (PDO) was approved in 2005. The field has been developed with one horizontal production well tied to the British Brae field. The production started in 2007.
3437659
13.12.2023
21.04.2024
ENOCH
Transport
The well stream from Enoch is transported to the Brae A facility for processing and further transport by pipeline to Cruden Bay in the UK. The gas is sold to Brae.
3437659
28.02.2023
21.04.2024
ENOCH
Status
The field is in its late tail phase. Cease of profitable production is currently estimated for the end of 2024.
3437659
28.02.2023
21.04.2024
ENOCH
Recovery strategy
The field is produced by pressure depletion.
3437659
28.02.2023
21.04.2024
ENOCH
Reservoir
Enoch produces oil from Forties sandstone of Paleocene age. The reservoir is at a depth of 2100 metres and has variable quality.
3437659
09.12.2023
21.04.2024
FENJA
Recovery strategy
The field is produced by pressure support from water and gas injection. Produced gas is reinjected into the reservoir. The reinjected gas will be produced at the end of the oil production period.
31164879
29.04.2023
21.04.2024
FENJA
Transport
The well stream is routed by pipeline to the Njord A facility for processing. The oil is stored at the Njord B facility and transferred to shuttle tankers. The gas is exported via Åsgard Transport System (ÅTS).
31164879
29.04.2023
21.04.2024
FENJA
Status
The potential maturation and development of the Bue area is being evaluated.
31164879
13.12.2023
21.04.2024
FENJA
Reservoir
The reservoirs contain oil and gas in sandstone of Late Jurassic age in the Melke Formation, and oil in Upper Jurassic sandstone in the Rogn Formation. They are in a fan system at a depth of 3200-3500 metres, and have variable reservoir properties.
31164879
13.12.2023
21.04.2024
FENJA
Development
Fenja is a field in the Norwegian Sea, 35 kilometres southwest of the Njord field. The water depth is 325 metres. The field also includes the discovery 6406/12-3 A (Bue). Fenja was discovered in 2014, and the plan for development and operation (PDO) was approved in 2018. The field is developed with two subsea templates with a total of six wells, tied-back to the Njord A facility. The production started in April 2023.
31164879
13.12.2023
21.04.2024
FENRIS
Development
Fenris is located in the southern part of the Norwegian sector in the North Sea, 20 kilometres north of the Ekofisk field and 50 kilometres north of the Valhall field. The water depth is 70 metres. Fenris was discovered in 2012, and the plan for development and operation (PDO) was approved in June 2023. The development concept includes an unmanned wellhead platform tied-back to the Valhall field.
42002478
09.12.2023
21.04.2024
FENRIS
Transport
The well stream will be routed by pipeline to the Valhall field centre for processing and further transport.
42002478
12.08.2023
21.04.2024
FENRIS
Status
The field is under development. The development of Fenris is coordinated with the further development of the Valhall field. The production is planned to start in 2027.
42002478
12.08.2023
21.04.2024
FENRIS
Recovery strategy
The field will be produced by pressure depletion.
42002478
12.08.2023
21.04.2024
FENRIS
Reservoir
The reservoir contains gas and condensate in sandstone of Jurassic age in the Ula and Farsund Formations and has high pressure and high temperature (HPHT). It is at a depth of about 5000 metres and has varying quality.
42002478
09.12.2023
21.04.2024
FLYNDRE
Status
Flyndre was shut down in July 2023.
24635035
16.08.2023
21.04.2024
FLYNDRE
Recovery strategy
The field was produced by pressure depletion. Only the Balmoral reservoir was developed.
24635035
16.08.2023
21.04.2024
FLYNDRE
Transport
The well stream was processed on the Clyde field. Liquids were transported to the Fulmar platform and further to Teesside in the UK via Norpipe. Some of the gas was used offshore for fuel and flare on the Clyde and Fulmar fields, with the remainder going to the terminal of the Shell-Esso Gas and Liquids (SEGAL) system at St Fergus in the UK.
24635035
16.08.2023
21.04.2024
FLYNDRE
Development
Flyndre is a field in the southern part of the Norwegian sector in the North Sea, straddling the border between the Norwegian and UK sectors. The Norwegian share of the field is seven per cent. Flyndre is located 35 kilometres northwest of the Ekofisk field. The water depth is 70 metres. Flyndre was discovered in 1974, and the plan for development and operation (PDO) was approved in 2014. The development included a subsea horizontal well tied-back to the Clyde platform on the UK continental shelf. The production started in 2017.
24635035
09.12.2023
21.04.2024
FLYNDRE
Reservoir
Flyndre produced oil and associated gas from Balmoral sandstone of Paleocene age. The reservoir is at a depth of 3000 metres and has moderate to good quality. There is also oil in Upper Cretaceous chalk with poor reservoir quality at a depth of 3100 metres.
24635035
09.12.2023
21.04.2024
FRAM
Status
An extra gas module dedicated to Fram on the Troll C platform started operation in 2020. Production from the Fram area is optimised within the available capacities at Troll C. Active exploration is ongoing in the area.
1578840
28.02.2023
21.04.2024
FRAM
Reservoir
Fram produces oil and associated gas from sandstone of Middle Jurassic age in the Brent Group, and from Upper Jurassic sandstone in a marine fan system in the Draupne Formation and the shallow marine Sognefjord Formation. The reservoirs have a gas cap and are in several isolated, rotated fault blocks at depths of 2300-2500 metres. The reservoir in Fram Vest is complex. The reservoirs in Fram Øst are generally of good quality.
1578840
09.12.2023
21.04.2024
FRAM
Transport
The well stream is transported to the Troll C platform for processing. The oil is transported further through the Troll Oil Pipeline II to the Mongstad terminal, and the gas is exported via the Troll A platform to the Kollsnes terminal.
1578840
28.02.2023
21.04.2024
FRAM
Recovery strategy
The Fram Øst deposit in the Sognefjord Formation is produced by injection of produced water as pressure support, in addition to natural aquifer drive. The Brent reservoirs in Fram Øst are produced by pressure support from natural aquifer drive. Gas lift is used in the wells. Oil production from Fram is restricted by the gas processing capacity at the Troll C facility.
1578840
28.02.2023
21.04.2024
FRAM
Development
Fram is a field in the northern part of the North Sea, 20 kilometres north of the Troll field. The water depth is 350 metres. Fram was discovered in 1990 and comprises two main structures, Fram Vest and Fram Øst, with several deposits. The plan for development and operation (PDO) for Fram Vest was approved in 2001 and for Fram Øst in 2005. The production started in 2003 and 2006, respectively. Both structures are developed with two subsea templates each, tied-back to the Troll C platform. A PDO exemption for Fram C-Øst was approved in 2016; the development included a long oil producer drilled from the B2-template on Fram Øst. Another PDO exemption was granted in 2018 for two wells in the Fram-Øst Brent reservoir, drilled from one of the existing templates on Fram Øst. Both Byrding and Fram H-Nord are producing through the Fram infrastructure.
1578840
13.12.2023
21.04.2024
FRAM H-NORD
Recovery strategy
The field is produced by pressure depletion. The well is equipped with gas lift.
23410947
13.12.2023
21.04.2024
FRAM H-NORD
Reservoir
Fram H-Nord produces oil and gas from turbiditic sandstone of Late Jurassic age in the Heather Formation. The reservoir is at a depth of 2950 metres and has good quality.
23410947
13.12.2023
21.04.2024
FRAM H-NORD
Status
Fram H-Nord has produced below expectations and had been shut-in for a period because of severe problems with the well stream (slugging). The production started again in 2022. Continuous gas lift is required to keep the well on stream.
23410947
13.12.2023
21.04.2024
FRAM H-NORD
Transport
The well stream is routed through a template on Fram Vest and further to the Troll C facility for processing. The oil is transported further by the Troll Oil Pipeline II to the Mongstad terminal, and the gas is exported via the Troll A platform to the Kollsnes terminal.
23410947
28.02.2023
21.04.2024
FRAM H-NORD
Development
Fram H-Nord is a field just north of the Fram field in the northern part of the North Sea. The water depth is 360 metres. Fram H-Nord was discovered in 2007, and the authorities granted an exemption from the plan for development and operation (PDO) requirement in 2013. The field is developed with a two-branch multilateral (MLT) well from a 4-slot template. The production started in 2014. The Byrding field is also drilled from the Fram H-Nord template.
23410947
13.12.2023
21.04.2024
FRIGG
Reservoir
Frigg produced gas from deep marine, turbiditic sandstone of Eocene age in the Frigg Formation, at a depth of 1900 metres.
43555
14.12.2023
21.04.2024
FRIGG
Development
Frigg is a field in the central part of the North Sea, straddling the border between the UK and Norwegian sectors. The water depth is 100 metres. Frigg was discovered in 1971, and the plan for development and operation (PDO) was approved in 1974. The field was developed with a living quarters facility (QP), two process facilities (TP1 and TCP2) and two drilling facilities (DP2 and CDP1). TP1, CDP1 and TCP2 had concrete substructures and steel frame topsides. The two other facilities had steel jackets. CDP1, TP1 and QP were on the UK part of the field. The facilities on the field also treated oil and gas from the fields Frøy, Nord Øst Frigg, Øst-Frigg, Lille-Frigg and Odin. The production started in 1977.
43555
14.12.2023
21.04.2024
FRIGG
Transport
The gas was transported via a 180-kilometre pipeline to the Shell-Esso Gas and Liquids (SEGAL) terminal at St Fergus in the UK.
43555
28.02.2023
21.04.2024
FRIGG
Status
Frigg was shut down in 2004, and final disposal of the facilities was completed in 2010. An appraisal well was drilled on Frigg in 2019. The development of the Yggdrasil area may provide an opportunity for a redevelopment of the field.
43555
14.12.2023
21.04.2024
FRIGG
Recovery strategy
The field was produced by pressure depletion.
43555
28.02.2023
21.04.2024
FRØY
Recovery strategy
The field was produced by pressure support from water injection.
43597
28.02.2023
21.04.2024
FRØY
Development
Frøy is a field in the central part of the North Sea, 22 kilometres northeast of the Heimdal field. The water depth is 120 metres. Frøy was discovered in 1987, and the plan for development and operation (PDO) was approved in 1992. The field was developed with a wellhead facility with 15 well slots. The production started in 1995.
43597
14.12.2023
21.04.2024
FRØY
Reservoir
Frøy produced oil from Jurassic sandstone in the Brent Group at a depth of 3200-3300 metres.
43597
14.12.2023
21.04.2024
FRØY
Transport
The well stream was transported by pipeline to the Frigg field for treatment and metering, and transported further via pipeline to the terminal of the Shell-Esso Gas and Liquids (SEGAL) system at St Fergus in the UK.
43597
28.02.2023
21.04.2024
FRØY
Status
Frøy was shut down in 2001, and the facility was removed in 2002. The ongoing development of the Hugin field includes a redevelopment of Frøy with a normally unmanned platform, Hugin B, tied-back to Hugin A.
43597
14.12.2023
21.04.2024
FULLA
Reservoir
The Fulla and Lille-Frigg reservoirs contain gas and condensate in Middle Jurassic sandstone of the Brent Group, and are at depths of 3600-4000 metres. The Øst Frigg reservoir contains gas in sandstone of Eocene age in the Frigg Formation, and is at a depth of 1900 metres. The reservoirs are structurally complex with varying reservoir properties.
42002479
09.12.2023
21.04.2024
FULLA
Transport
The well stream will be routed by pipeline to the Hugin field for processing and further transport.
42002479
12.08.2023
21.04.2024
FULLA
Status
The field is under development. The development of Fulla is coordinated with the development of the Hugin and Munin fields in the Yggdrasil area. The production is planned to start in 2027.
42002479
12.08.2023
21.04.2024
FULLA
Development
Fulla is a field in the Yggdrasil area in the central North Sea, 15 kilometres northeast of the Frigg field. The water depth is 110 metres. Fulla was discovered in 2009, and the plan for development and operation (PDO) was approved in June 2023. The plan comprises the development of Fulla and the redevelopment of the Lille-Frigg field. The development concept includes a subsea template with six slots tied-back to the Hugin A facility, located in the southern part of the Yggdrasil area. The development plan also includes a possible redevelopment of the Øst Frigg field with a new subsea template.
42002479
09.12.2023
21.04.2024
FULLA
Recovery strategy
The field will be produced by pressure depletion.
42002479
23.08.2023
21.04.2024
GAUPE
Development
Gaupe is a field in the central part of the North Sea close to the border to the UK sector, about 35 kilometres south of the Sleipner Øst field. The water depth is 90 metres. Gaupe was discovered in 1985, and the plan for development and operation (PDO) was approved in 2010. The development concept was two single horizontal subsea wells tied to the Armada installation on the UK continental shelf. Production started in 2012.
18161341
28.02.2023
21.04.2024
GAUPE
Recovery strategy
The field was produced by pressure depletion.
18161341
28.02.2023
21.04.2024
GAUPE
Transport
The well stream was processed at the Armada installation for export to the UK. The rich gas was transported via the Central Area Transmission System (CATS) pipeline to Teesside in the UK, and liquids were transported via the Forties pipeline to Cruden Bay in the UK.
18161341
28.02.2023
21.04.2024
GAUPE
Status
Gaupe was shut down in 2018. Decommissioning of the subsea facilities must be completed by the end of 2028.
18161341
09.12.2023
21.04.2024
GAUPE
Reservoir
Gaupe produced oil and gas from two structures, Gaupe South and Gaupe North. Most of the resources were in sandstone in the Triassic Skagerrak Formation, while some were in Middle Jurassic sandstone. The reservoirs are at a depth of 3000 metres. The two structures had a gas cap overlying an oil zone. Due to segmentation, the vertical and lateral connectivity in the field is poor.
18161341
09.12.2023
21.04.2024
GIMLE
Status
Gimle is temporarily shut down due to low reservoir pressure. A new well is planned to be drilled in 2023/2024 in the area between Gimle and Sindre fields. Gimle and Sindre have recently been merged into a unit called Brime.
4005142
09.12.2023
21.04.2024
GIMLE
Development
Gimle is a field in the northern part of the North Sea, just northeast of the Gullfaks field. The water depth is 220 metres. Gimle was discovered in 2004, and was granted exemption from the plan for development and operation (PDO) requirement in 2006. The field is developed with three production wells and one water injection well drilled from the Gullfaks C facility. The production started in 2006.
4005142
13.12.2023
21.04.2024
GIMLE
Transport
The production from Gimle is processed on the Gullfaks C facility and transported together with oil and gas from the Gullfaks field.
4005142
28.02.2023
21.04.2024
GIMLE
Reservoir
Gimle produces oil from sandstone of Middle Jurassic age in the Brent Group. The main reservoir is in a downfaulted structure northeast of the Gullfaks field at a depth of 2900 metres. The reservoir quality is generally good. There is also oil in sandstone of Late Triassic and Early Jurassic age.
4005142
09.12.2023
21.04.2024
GIMLE
Recovery strategy
The field is produced by partial pressure support from water injection. Injection is temporarily stopped due to production shut down.
4005142
28.02.2023
21.04.2024
GINA KROG
Development
Gina Krog is a field on the Utsira High in the central part of the North Sea, just north of the Sleipner Vest field. The water depth is 120 metres. Gina Krog was discovered in 1978, and the plan for development and operation (PDO) was approved in 2013. The field is developed with a fixed platform with living quarters and processing facilities. The production started in 2017. An amended PDO for an alternative oil export solution was approved in 2022. Since September 2023, Gina Krog is fully electrified by power from shore via the Johan Sverdrup field.
23384544
13.12.2023
21.04.2024
GINA KROG
Transport
Stabilised oil and condensate are transported to a floating storage and offloading vessel (Randgrid FSO), and then offloaded to shuttle tankers for further transport. Rich gas is exported to the Sleipner A facility for further processing. Sales gas is exported from Sleipner A via Gassled (Area D) to the market, while unstable condensate is exported to the Kårstø terminal.
23384544
28.02.2023
21.04.2024
GINA KROG
Status
Oil production is declining, and to keep the production as high as possible, gas lift is used in some of the wells. In addition, two injection wells have been converted to producers. The strategy is to keep the gas production at plateau while at the same time maximising oil production. The second drilling campaign on Gina Krog started in June 2023 with two new wells, one with an exploration target. A PDO for the subsea tie-back of the discovery 15/5-2 Eirin was delivered in September 2023. The alternative oil export solution, which includes a pipeline from Gina Krog to the Sleipner A platform, is planned to be in operation in 2024.
23384544
13.12.2023
21.04.2024
GINA KROG
Reservoir
Gina Krog produces oil and gas from sandstone of Middle Jurassic age in the Hugin Formation. The field is structurally complex and segmented, and the reservoir depth is 3300-3900 metres. Reservoir thickness and quality are varying.
23384544
13.12.2023
21.04.2024
GINA KROG
Recovery strategy
The field has earlier been produced by gas injection in most reservoir segments. Since 2021, all segments are produced by pressure depletion.
23384544
28.02.2023
21.04.2024
GJØA
Reservoir
The reservoirs contain gas above a relatively thin oil zone in sandstone of Jurassic age in the Dunlin, Brent and Viking Groups. The field comprises several tilted fault segments with partly uncertain communication and variable reservoir quality. The reservoir depth is 2200 metres.
4467574
13.12.2023
21.04.2024
GJØA
Development
Gjøa is a field in the northern part of the North Sea, 50 kilometres northeast of the Troll field. The water depth is 360 metres. Gjøa was discovered in 1989, and the plan for development and operation (PDO) was approved in 2007. The field comprises several segments. Gjøa is developed with a semi-submersible production facility and includes five 4-slot templates. The field is partly supplied with power from shore. The production started in 2010. In 2019, Gjøa was granted a PDO exemption for the redevelopment of the P1 segment, including a 4-slot template. The Vega, Duva and Nova fields are tied-back to Gjøa.
4467574
13.12.2023
21.04.2024
GJØA
Status
Production from Gjøa has started to decline. Work is focusing on production optimisation and maturation of new production opportunities, such as natural gas lift, infill drilling and near-field exploration targets.
4467574
13.12.2023
21.04.2024
GJØA
Recovery strategy
The field is produced by pressure depletion. In the southern segments, oil production was prioritised in the first years. Gas blow-down, production of the gas cap, started in 2015. Low pressure production was implemented in 2017.
4467574
28.02.2023
21.04.2024
GJØA
Transport
Stabilised oil is exported by pipeline connected to Troll Oil Pipeline II, for further transport to the Mongstad terminal. Rich gas is exported via the Far North Liquids and Associated Gas System (FLAGS) on the UK continental shelf, for further processing at the St Fergus terminal in the UK.
4467574
28.02.2023
21.04.2024
GLITNE
Development
Glitne is a field in the central part of the North Sea, 40 kilometres north of the Sleipner area. The water depth is 110 metres. Glitne was discovered in 1995, and the plan for development and operation (PDO) was approved in 2000. The field was developed with six horizontal production wells and one water injection well, tied-back to a production and storage vessel, Petrojarl 1. The production started in 2001.
1272071
09.12.2023
21.04.2024
GLITNE
Transport
Oil from Glitne was processed and stored on the production vessel and exported by tankers. Excess gas was injected into the Utsira Formation.
1272071
28.02.2023
21.04.2024
GLITNE
Reservoir
Glitne produced oil from sandstone of Paleocene age in the upper part of the Heimdal Formation. The reservoir is in a deep marine fan system at a depth of 2150 metres.
1272071
09.12.2023
21.04.2024
GLITNE
Recovery strategy
The field was produced with pressure support from a large natural aquifer in the Heimdal Formation. Associated gas was used for gas lift in the horizontal wells until 2012.
1272071
28.02.2023
21.04.2024
GLITNE
Status
Glitne was shut down in 2013, and decommissioning was completed in 2015.
1272071
09.12.2023
21.04.2024
GOLIAT
Development
Goliat is a field in the Barents Sea, 50 kilometres southeast of the Snøhvit field. The water depth is 360-420 metres. Goliat was discovered in 2000, and the plan for development and operation (PDO) was approved in 2009. The field is developed with a cylindrical floating production, storage and offloading facility (Sevan 1000 FPSO). Eight subsea templates with a total of 32 well slots are tied-back to the FPSO. Production started in 2016. Goliat was granted a PDO exemption for the Snadd reservoir in 2017 and the Goliat West segment in 2020. The production from these accumulations started in 2017 and 2021, respectively.
5774394
13.12.2023
21.04.2024
GOLIAT
Recovery strategy
The field is produced using water injection as pressure support. Additional pressure support results from reinjection of produced gas.
5774394
28.02.2023
21.04.2024
GOLIAT
Transport
The oil is offloaded to shuttle tankers for transport to the market. Future gas export is planned via the Snøhvit pipeline to the liquid natural gas (LNG) processing facility at Melkøya near Hammerfest.
5774394
13.12.2023
21.04.2024
GOLIAT
Status
Production regularity has been below expectation since production start-up. Continuous maintenance and modification work along with several revision stops have resulted in a gradually improved regularity of the facility. A solution for Goliat gas export is being considered, which will contribute to extend the lifetime of the field. Several infill wells have been drilled since start up. In 2021 and 2023, the discoveries 7122/6-3 S (Rødhette) and 7122/8-1 S (Countach) were made in the area north of the Goliat field. More infill and exploration wells are planned in the coming years.
5774394
03.01.2024
21.04.2024
GOLIAT
Reservoir
Goliat produces oil from sandstone of Triassic age in the Kobbe and Snadd Formations, and in the Kapp Toscana Group (Realgrunnen subgroup) of Triassic to Jurassic age. The reservoirs have thin gas caps and are in a complex and segmented structure at depths of 1100-1800 metres.
5774394
13.12.2023
21.04.2024
GRANE
Transport
Oil from Grane is transported by pipeline to the Sture terminal for storage and export.
1035937
28.02.2023
21.04.2024
GRANE
Recovery strategy
The field is produced by gas injection at the top of the structure, and horizontal production wells at the bottom of the oil zone. In 2010, Grane terminated gas import from the Heimdal gas centre, and only produced gas was reinjected into the reservoir. Gas import started up again in 2014. Grane has limited water injection. Oil recovery is maintained by gas injection and drilling of new wells, including sidetracks from existing producers.
1035937
28.02.2023
21.04.2024
GRANE
Reservoir
Grane produces oil with high viscosity mostly from Paleocene sandstone in the Heimdal Formation with very good reservoir properties. The field comprises a main structure and some additional segments with full communication. The reservoir depth is 1700 metres.
1035937
09.12.2023
21.04.2024
GRANE
Status
The recoverable volumes have increased since the initial PDO estimates. A permanent reservoir monitoring system installed on the seabed provides more detailed seismic data for improved reservoir management. Several wells have been drilled, and new wells are being planned, most of them as multilateral wells.
1035937
09.12.2023
21.04.2024
GRANE
Development
Grane is a field in the central part of the North Sea, just east of the Balder field. The water depth is 130 metres. Grane was discovered in 1991, and the plan for development and operation (PDO) was approved in 2000. The field has been developed with an integrated accommodation, drilling and processing facility with a steel jacket and 40 well slots. The production started in 2003. The Svalin and Breidablikk fields are tied-back to the Grane platform.
1035937
13.12.2023
21.04.2024
GUDRUN
Transport
Unstable oil and rich gas are transported in separate pipelines to the Sleipner A facility for further processing. Dry gas is exported via Gassled (Area D) to the market, while oil is transported to the Kårstø terminal.
18116481
28.02.2023
21.04.2024
GUDRUN
Recovery strategy
The field is mainly produced by pressure depletion. Part of the reservoir in the Draupne Formation is produced with water injection.
18116481
13.12.2023
21.04.2024
GUDRUN
Development
Gudrun is a field in the central part of the North Sea, 50 kilometres north of the Sleipner Øst field. The water depth is 110 metres. Gudrun was discovered in 1975, and the plan for development and operation (PDO) was approved in 2010. The field is developed with a steel jacket and a topside with process facility and living quarters. Gudrun is tied-back to the Sleipner A facility with two pipelines, one for oil and one for wet gas. A PDO exemption was granted for the discovery 15/3-9 in 2013. The production started in 2014.
18116481
13.12.2023
21.04.2024
GUDRUN
Status
The production from Gudrun has started to decline. Water injection in parts of the Darupne reservoir started in 2022. The second drilling campaign was completed in 2022, and infill targets for the third drilling campaign are being matured. A new 4D seismic survey was completed in 2023. The Gudrun installation has flexibility for tie-in of discoveries in the area.
18116481
13.12.2023
21.04.2024
GUDRUN
Reservoir
Gudrun produces oil and gas from sandstone in the Upper Jurassic Draupne Formation and the Middle Jurassic Hugin Formation. The reservoir quality in the Draupe Formation, which constitutes the main recoverable resources, is in general good. The Hugin Formation has larger variation in reservoir quality. The reservoirs are at depths of 4000-4700 metres.
18116481
13.12.2023
21.04.2024
GULLFAKS
Recovery strategy
The drive mechanism for the main reservoirs is primarily water injection, with gas injection and water alternating gas injection (WAG) in some areas. Initially, the drainage strategy for the Shetland/Lista reservoir was depletion, but pressure support by water injection has now been implemented.
43686
28.02.2023
21.04.2024
GULLFAKS
Transport
Oil is exported from Gullfaks A and Gullfaks C via loading buoys onto tankers. Rich gas is transported by Statpipe for further processing at the Kårstø terminal.
43686
28.02.2023
21.04.2024
GULLFAKS
Status
Drilling of new wells on Gullfaks has been challenging for many years due to overpressured areas in the Shetland/Lista interval. Production from the Shetland/Lista reservoirs has gradually contributed to reduced overpressures and improved drillability. Additional wells are being drilled continuously from all platforms. Hywind Tampen started power production 2022/2023.
43686
13.12.2023
21.04.2024
GULLFAKS
Development
Gullfaks is a field in the Tampen area in the northern part of the North Sea. The water depth is 130-220 metres. Gullfaks was discovered in 1978, and the plan for development and operation (PDO) for Gullfaks Phase I was approved in 1981. A PDO for Gullfaks Phase II was approved in 1985. The production started in 1986. The field has been developed with three integrated processing, drilling and accommodation facilities with concrete bases (Gullfaks A, B and C). Gullfaks B has a simplified processing plant with first stage separation. The Gullfaks facilities are involved in production and transport from Tordis, Vigdis, Snorre, Visund, Visund Sør and Brime. A PDO for Gullfaks Vest was approved in 1993, and for recovery from the Lunde Formation in 1995. An amended PDO for the Gullfaks field, covering prospects and small discoveries, which could be drilled and produced from existing facilities, was approved in 2005. Amendments to the Gullfaks PDO, covering Phase I and Phase II production from the Shetland/Lista deposit, were approved in 2015 and 2019, respectively. In 2020, an amended PDO for the development of the Hywind Tampen wind farm was approved. The wind farm consists of 11 floating turbines that started supplying electricity to the Gullfaks and Snorre platforms in 2022/2023. These fields are the first in the world receiving power from a floating wind farm.
43686
13.12.2023
21.04.2024
GULLFAKS
Reservoir
Gullfaks produces oil from Middle Jurassic sandstone in the Brent Group, and from Lower Jurassic and Upper Triassic sandstone in the Statfjord Group and Cook and Lunde Formations. Recoverable oil is also present in fractured carbonate and shale in the overlying Shetland Group and Lista Formation. The reservoirs are at depths of 1700-2000 metres in rotated fault blocks in the west and a structural horst (raised fault block) in the east, with a highly faulted area in between. Reservoir quality is generally good to very good in the Jurassic reservoirs within each fault compartment, but poor reservoir communication is a challenge for pressure maintenance.
43686
13.12.2023
21.04.2024
GULLFAKS SØR
Reservoir
The Gullfaks Sør deposits produce oil and gas from Middle Jurassic sandstone in the Brent Group and from Lower Jurassic and Upper Triassic sandstone in the Statfjord Group and Cook and Lunde Formations. The reservoirs are in several rotated fault blocks at depths of 2400-3400 metres. The reservoirs in the Gullfaks Sør deposit are heavily segmented, with many internal faults and challenging flow characteristics, especially in the Statfjord Group and Lunde Formation. The other deposits in the Gullfaks Sør area have generally good reservoir quality.
43699
13.12.2023
21.04.2024
GULLFAKS SØR
Development
Gullfaks Sør is a field in the northern part of the North Sea, just south of the Gullfaks field. The water depth is 130-220 metres. Gullfaks Sør was discovered in 1978, but comprises several discoveries made in later years. The Gullfaks Sør deposits have been developed with a total of 13 subsea templates tied-back to the Gullfaks A and Gullfaks C facilities. The initial plan for development and operation (PDO) for Gullfaks Sør Phase I was approved in 1996 and included production of oil and condensate from the Gullfaks Sør, Rimfaks and Gullveig deposits. The production started in 1998. The PDO for Phase II was approved in 1998 and included production of gas from the Brent Group in the Gullfaks Sør deposit. In 2004, the Gulltopp discovery was included in Gullfaks Sør. Gulltopp is produced through an extended reach production well from the Gullfaks A facility. A PDO for the Skinfaks discovery and Rimfaks IOR was approved in 2005. An amended PDO for the redevelopment of Gullfaks Sør Statfjord Formation with two new subsea templates was approved in 2012. A PDO for Gullfaks Rimfaksdalen, which includes the Rutil and Opal deposits, was approved in 2015. It consists of a new subsea template and four production wells. Since 2017, gas production is increased by two subsea wet gas compressors, tied-back to the Gullfaks C platform. A PDO exemption for some prospects and small discoveries, which can be drilled and produced from existing Gullfaks Sør facilities, was granted in 2018. A PDO exemption for the Opal Sør deposit was granted in 2019.
43699
13.12.2023
21.04.2024
GULLFAKS SØR
Status
The Gullfaks Sør production is on decline, but the field still has significant remaining gas volumes. New wells are continuously drilled in the area with a licence-owned rig.
43699
13.12.2023
21.04.2024
GULLFAKS SØR
Recovery strategy
The Brent reservoir in Gullfaks Sør is mainly produced by pressure depletion after gas injection ceased in 2009. Pressure support from gas injection started for the Skinfaks Sør deposit in 2023. The Lunde Formation in Gullfaks Sør is produced with depletion as well as pressure support from gas injection. Gas export from Rimfaks started in 2015, but limited gas injection was maintained in the Brent Group until 2018. The Gullveig, Gulltopp and Rutil deposits are produced by pressure depletion and partial aquifer drive. The Skinfaks deposit is produced with gas lift. The Rutil and Opal deposits are produced by pressure depletion.
43699
13.12.2023
21.04.2024
GULLFAKS SØR
Transport
The oil is transported to the Gullfaks A facility for processing, storage and further transport by tankers. Rich gas is processed on Gullfaks C and exported through Statpipe to the Kårstø-terminal.
43699
28.02.2023
21.04.2024
GUNGNE
Status
Gungne is in its late tail production phase. Only one well is currently on production, and there is no production from the well on the Gamma High structure.
43464
09.12.2023
21.04.2024
GUNGNE
Transport
The well stream from Gungne is processed at the Sleipner A facility. Sales gas is exported from Sleipner A via Gassled (Area D) to the market. Unstable condensate is transported in a pipeline to the Kårstø terminal.
43464
28.02.2023
21.04.2024
GUNGNE
Recovery strategy
The field is produced by pressure depletion.
43464
28.02.2023
21.04.2024
GUNGNE
Reservoir
Gungne produces gas and condensate mainly from sandstone in the Triassic Skagerrak Formation, with some contribution from Middle Jurassic sandstone in the Hugin Formation and Paleogene sandstone in Ty Formation. The Skagerrak Formation has generally poorer reservoir quality than the Hugin and Ty Formations. The reservoirs are at a depth of 2800 metres.
43464
09.12.2023
21.04.2024
GUNGNE
Development
Gungne is a field in the Sleipner area in the central part of the North Sea. The water depth is 85 metres. Gungne was discovered in 1982, and the plan for development and operation (PDO) was approved in 1995. The field has been developed by three wells drilled from the Sleipner A installation. The production started in 1996. A PDO exemption was granted for the Skagerrak and Hod Formations in 2000, and for a well to the Gamma High structure in 2007.
43464
13.12.2023
21.04.2024
GYDA
Recovery strategy
The field was produced by water injection, as well as by pressure support from both gas cap and aquifer in parts of the field.
43492
28.02.2023
21.04.2024
GYDA
Development
Gyda is a field in the southern part of the Norwegian sector in the North Sea, between the Ula and Ekofisk fields. The water depth is 65 metres. Gyda was discovered in 1980, and the plan for development and operation (PDO) was approved in 1987. The field was developed with a combined drilling, accommodation and processing facility with a steel jacket. The production started in 1990. A PDO for Gyda Sør was approved in 1993.
43492
09.12.2023
21.04.2024
GYDA
Reservoir
Gyda produced oil from three reservoirs in Upper Jurassic sandstone of the Ula Formation. The reservoir depth is 4000 metres.
43492
09.12.2023
21.04.2024
GYDA
Status
Gyda was shut down in 2020, and the facility was removed in 2022.
43492
09.12.2023
21.04.2024
GYDA
Transport
The oil was transported to the Ekofisk field via the oil pipeline from Ula, and further via Norpipe to Teesside in the UK. The gas was transported in a dedicated pipeline to Ekofisk for further transport via Norpipe to Emden in Germany. Gas export ceased in 2016.
43492
28.02.2023
21.04.2024
HALTEN ØST
Recovery strategy
The drainage strategy is pressure depletion with aquifer support.
42148955
20.04.2023
21.04.2024
HALTEN ØST
Transport
The oil and condensate will be transported from Åsgard to the market by tankers. The gas will be exported via the Åsgard Transport System (ÅTS) to the terminal at Kårstø.
42148955
09.12.2023
21.04.2024
HALTEN ØST
Status
Halten Øst will be developed in two phases. Production from the first and second phase is scheduled to start in 2025 and 2029, respectively.
42148955
20.04.2023
21.04.2024
HALTEN ØST
Reservoir
The reservoirs contain mainly gas and condensate in Lower to Upper Jurassic sandstone in the Tilje, Tofte, Ile, Garn and Melke Formations. They are located at depths between 2000 and 3000 metres. Common for all these reservoirs is that the volumes are relatively small, but the reservoir properties are excellent.
42148955
09.12.2023
21.04.2024
HALTEN ØST
Development
Halten Øst is a field in the Norwegian Sea, just east of the Åsgard field. It consists of six discoveries: Natalia, Sigrid, Nona, Flyndretind, Gamma and Harepus, spread out within 65 kilometres between Natalia in the north to Mikkel Sør in the south. The water depth is 200-300 metres. The discoveries will be developed together, and the plan for development and operation (PDO) was approved in February 2023. The development concept includes five subsea templates tied-back to the existing infrastructure on the Åsgard field.
42148955
09.12.2023
21.04.2024
HANZ
Reservoir
The reservoir contains oil with a minor gas cap. It is in the Draupne Formation of Late Jurassic age at a depth of 2350 metres. It is in presumably deep marine sandstone with good reservoir properties.
25307278
09.12.2023
21.04.2024
HANZ
Recovery strategy
The field will be produced by pressure support from a crossflow water injector between the Heimdal aquifer and the reservoir in the Draupne Formation.
25307278
07.02.2024
21.04.2024
HANZ
Transport
After initial processing on the Ivar Aasen field, the well stream will be transported to the Edvard Grieg field for final processing and export.
25307278
28.02.2023
21.04.2024
HANZ
Status
The field is under development and the production is planned to start in 2024.
25307278
28.02.2023
21.04.2024
HANZ
Development
Hanz is a field in the North Sea, 12 kilometres north of the Ivar Aasen field. The water depth is 115 metres. Hanz was discovered in 1997 and is included in an amended plan for development and operation (PUD) for the Ivar Aasen field. Hanz will be developed with subsea templates tied-back to Ivar Aasen.
25307278
09.12.2023
21.04.2024
HEIDRUN
Status
The production from Heidrun is maintained at a relatively high level through continuous water and gas injection and drilling of new production and injection wells. Different methods are being evaluated to enhance oil and gas recovery and prolong the lifetime of the field. The production from the Alpha Horst segment started in 2022.
43771
13.12.2023
21.04.2024
HEIDRUN
Development
Heidrun is a field on Haltenbanken in the Norwegian Sea, 30 kilometres northeast of the Åsgard field. The water depth is 350 metres. Heidrun was discovered in 1985, and the plan for development and operation (PDO) was approved in 1991. The field has been developed with the world's first ever floating concrete tension-leg platform (TLP), installed over a large subsea template with 56 well slots. Six subsea templates in the southern and northern areas are additionally tied-back to the TLP. The production started in 1995. The floating storage unit (FSU) Heidrun B is permanently moored at the Heidrun platform since 2015. The PDO for the Heidrun northern flank was approved in 2000. The Maria field receives water for injection from Heidrun. The Dvalin field has a dedicated gas processing module on the Heidrun platform.
43771
13.12.2023
21.04.2024
HEIDRUN
Reservoir
Heidrun produces oil and gas from Lower and Middle Jurassic sandstone in the Åre, Tilje, Ile and Garn Formations. The reservoir is at a depth of 2300 metres and is heavily faulted and segmented. The Ile and Garn Formations have good reservoir quality, while the Åre and Tilje Formations are more complex.
43771
13.12.2023
21.04.2024
HEIDRUN
Transport
The oil is exported via the Heidrun B FSU onto tankers and shipped to the market. The gas is exported via Haltenpipe to the Tjeldbergodden terminal and via the Åsgard Transport System (ÅTS) to the Kårstø terminal. The Dvalin gas is exported via Polarled to the Nyhamna terminal.
43771
13.12.2023
21.04.2024
HEIDRUN
Recovery strategy
The field is produced with pressure maintenance using water and gas injection in the Ile and Garn Formations. In the more complex parts of the reservoir, in the Åre and Tilje Formations, the main recovery strategy is water injection. Some segments are also produced by pressure depletion.
43771
28.02.2023
21.04.2024
HEIMDAL
Recovery strategy
The field was produced by pressure depletion.
43590
28.02.2023
21.04.2024
HEIMDAL
Development
Heimdal is a field in the central part of the North Sea. The water depth is 120 metres. Heimdal was discovered in 1972, and the initial plan for development and operation (PDO) was approved in 1981. The field was developed with an integrated drilling, production and accommodation facility with a steel jacket. The production started in 1985. When the Heimdal riser gas facility (Gas Centre) came into operation, Heimdal also became a hub for dry gas transport from Oseberg, in addition to processing production from fields such as Atla, Skirne, Vale, Valemon and Huldra.
43590
09.12.2023
21.04.2024
HEIMDAL
Transport
Gas from Heimdal was transported in Statpipe via the Draupner and Ekofisk fields to continental Europe. When the Heimdal Gas Centre was established, a new gas pipeline was connected to the existing gas pipeline from the Frigg field to the Shell-Esso Gas and Liquid (SEGAL) terminal at St Fergus in the UK. Condensate was transported by pipeline to the Brae field in the UK sector and further to Cruden Bay in the UK.
43590
09.12.2023
21.04.2024
HEIMDAL
Status
The production from Heimdal ceased in 2020. Heimdal was used as a gas processing centre until mid-2023. Decommissioning of the facilities must be completed by the end of 2028.
43590
09.12.2023
21.04.2024
HEIMDAL
Reservoir
Heimdal produced gas and some condensate from sandstone of Paleocene age in the Heimdal Formation. The reservoir is in a massive turbidite system at a depth of 2100 metres and has good quality.
43590
09.12.2023
21.04.2024
HOD
Status
The production from Hod B started in 2022. The Hod Saddle area is being produced through wells drilled from the Valhall field. The original Hod platform awaits decommissioning within 2026.
43485
09.12.2023
21.04.2024
HOD
Recovery strategy
The field is produced by pressure depletion. Gas lift has been used in some wells to increase production.
43485
28.02.2023
21.04.2024
HOD
Transport
Oil and gas are transported in a shared pipeline to the Valhall field for further processing. Transport of oil and NGL from Valhall is routed via pipeline to the Ekofisk Centre and further to Teesside in the UK. Gas from Valhall is sent via Norpipe to Emden in Germany.
43485
28.02.2023
21.04.2024
HOD
Reservoir
Hod produces oil from chalk in the Upper Cretaceous Tor and Hod Formations and the lower Paleocene Ekofisk Formation. The Tor Formation chalk is fine-grained and soft. Considerable fracturing allows oil and water to flow more easily than in the underlying Hod Formation. The reservoir depth is 2700 metres. The field consists of three structures: Hod West, Hod East and Hod Saddle.
43485
09.12.2023
21.04.2024
HOD
Development
Hod is a field in the southern part of the Norwegian sector in the North Sea, about 13 kilometres south of the Valhall field. The water depth is 72 metres. Hod was discovered in 1974, and the plan for development and operation (PDO) was approved in 1988. The field was originally developed with an unmanned wellhead platform, remotely controlled from Valhall. The production started in 1990. A PDO for Hod Saddle was approved in 1994. The production from the original platform ceased in 2013. A PDO for the redevelopment of Hod with a new unmanned wellhead platform (Hod B) tied-in to the Valhall field centre was approved in 2020.
43485
13.12.2023
21.04.2024
HUGIN
Recovery strategy
Langfjellet, Frøy and Rind will be produced with pressure support by water injection. Frigg Gamma Delta will be produced by pressure depletion, and the produced water is planned to be reinjected into the water zone.
42002474
12.08.2023
21.04.2024
HUGIN
Status
The field is under development. The development of Hugin is coordinated with the development of the Fulla and Munin fields in the Yggdrasil area. The production is planned to start in 2027. Nearby prospects may be tested in a later drilling campaign and produced through remaining well slots.
42002474
09.12.2023
21.04.2024
HUGIN
Reservoir
The reservoirs contain oil and gas in sandstone mainly of Eocene age in the Frigg Formation and of Middle Jurassic age in the Hugin Formation, at depths of 1900 and 3500 metres, respectively. The Hugin area is geologically complex, and the deposits have varying reservoir and fluid properties.
42002474
09.12.2023
21.04.2024
HUGIN
Development
Hugin is a field in the Yggdrasil area in the central North Sea, 20 kilometres east of the Frigg field. The water depth is 120 metres. Hugin consists of three discoveries: Frigg Gamma Delta, Rind and Langfjellet. The first discovery was made in 1986 when Frigg Gamma was discovered. The plan for development and operation (PDO) was approved in June 2023. The plan comprises the development of the Hugin discoveries and the redevelopment of the Frøy field. The development concept includes a process facility with living quarters, Hugin A, and a normally unmanned facility at Frøy, Hugin B, as well as subsea templates tied-back to Hugin A. Hugin A will be the field centre for the Yggdrasil area.
42002474
09.12.2023
21.04.2024
HUGIN
Transport
The gas will be exported through a pipeline from Hugin A to Statpipe and the Kårstø terminal. The oil will be exported through pipeline from Hugin A to the Grane oil pipeline and further to the Sture terminal.
42002474
23.08.2023
21.04.2024
HULDRA
Status
Huldra was shut down in 2014, and the facility was removed in 2019.
97002
09.12.2023
21.04.2024
HULDRA
Development
Huldra is a field in the northern part of the North Sea, 16 kilometres west of the Veslefrikk field. The water depth is 125 metres. Huldra was discovered in 1982, and the plan for development and operation (PDO) was approved in 1999. The field was developed with a wellhead facility, including a simple process facility, and remotely operated from Veslefrikk B. The production started in 2001.
97002
09.12.2023
21.04.2024
HULDRA
Transport
The wet gas was transported to the Heimdal field and the condensate to Veslefrikk for processing and export.
97002
09.12.2023
21.04.2024
HULDRA
Reservoir
Huldra produced gas and condensate from sandstone of Middle Jurassic age in the Brent Group. The reservoir is in a rotated fault block at a depth of 3500-3900 metres, and initially had high pressure and high temperature (HPHT). There are many small faults in the field and two main segments without pressure communication.
97002
09.12.2023
21.04.2024
HULDRA
Recovery strategy
The field was produced by pressure depletion and with low pressure production after 2007.
97002
28.02.2023
21.04.2024
HYME
Reservoir
Hyme produces oil and gas from sandstone of Early and Middle Jurassic age in the Tilje and Ile Formations. The reservoir is at a depth of 2150 metres and has good quality.
20474183
13.12.2023
21.04.2024
HYME
Recovery strategy
The field is produced with pressure support from seawater injection. The production well is equipped with gas lift.
20474183
28.02.2023
21.04.2024
HYME
Development
Hyme is a field in the southern part of the Norwegian Sea, 19 kilometres northeast of the Njord field. The water depth is 250 metres. Hyme was discovered in 2009, and the plan for development and operation (PDO) was approved in 2011. The field is developed with a subsea template including one production well and one water injection well. Hyme is connected to the Njord A facility. The production started in 2013 and stopped temporarily in 2016 when the Njord A facility was shut down and towed to land for reinforcement and modifications. Hyme resumed production again in April 2023.
20474183
13.12.2023
21.04.2024
HYME
Status
The production is lower than anticipated, mainly due to downtime associated with the Njord process facility. The current production strategy for Hyme is to optimise the drainage by balancing water injection versus development of pressure and water cut in the production well.
20474183
13.12.2023
21.04.2024
HYME
Transport
The well stream is transported to the Njord field and processed on the Njord A platform. The Njord facilities are used for both oil and gas export.
20474183
28.02.2023
21.04.2024
IDUN NORD
Transport
The gas will be exported via the Åsgard Transport System (ÅTS) to the terminal at Kårstø. Oil and condensate will be offloaded from the Skarv FPSO to shuttle tankers.
42002477
09.12.2023
21.04.2024
IDUN NORD
Development
Idun Nord is a field in the northern part of the Norwegian Sea, right east of the Skarv field. The water depth is 380 metres. Idun Nord was discovered in 2009, and the plan for development and operation (PDO) was approved in June 2023. The development concept includes a subsea template with four slots tied-back to the Skarv floating production, storage and offloading vessel (FPSO).
42002477
09.12.2023
21.04.2024
IDUN NORD
Recovery strategy
The field will be produced by pressure depletion.
42002477
12.08.2023
21.04.2024
IDUN NORD
Reservoir
The reservoir contains gas and condensate in sandstone of Middle Jurassic age in the Garn and Not Formations. It is at a depth of about 3500 metres and has good quality.
42002477
09.12.2023
21.04.2024
IDUN NORD
Status
Idun Nord is being developed together with Ørn and Alve Nord as part of the Skarv Satellite Project (SSP). The production is planned to start in 2027.
42002477
12.08.2023
21.04.2024
IRPA
Reservoir
The reservoir contains gas in turbiditic sandstone of Late Cretaceous age in the Springar Formation, at a depth of 3200 metres. The reservoir properties are good.
42002482
09.12.2023
21.04.2024
IRPA
Status
The field is under development. The production is planned to start in 2026.
42002482
12.08.2023
21.04.2024
IRPA
Development
Irpa is a field in the Vøring Basin in the Norwegian Sea, 80 kilometres west of the Aasta Hansteen field. The water depth is 1330 metres. Irpa was discovered in 2009, and the plan for development and operation (PDO) was approved in June 2023. The development concept includes a subsea template with four slots tied-back to the existing Aasta Hansteen facility.
42002482
09.12.2023
21.04.2024
IRPA
Transport
The gas will be exported via Polarled to the terminal at Nyhamna. Light oil will be offloaded from Aasta Hansteen to shuttle tankers.
42002482
09.12.2023
21.04.2024
IRPA
Recovery strategy
The field will be produced by pressure depletion.
42002482
12.08.2023
21.04.2024
ISLAY
Reservoir
Islay produces gas from Middle Jurassic sandstone in the Brent Group. The reservoir depth is 3700-3900 metres.
21105675
09.12.2023
21.04.2024
ISLAY
Development
Islay is a field on the boundary to the UK sector in the northern part of the North Sea, 55 kilometres west of the Oseberg field. The Norwegian share of the field is 5.51 per cent. The water depth is 120 metres. Islay was discovered in 2008, and the production started in 2012. The field is developed with one well tied to the Forvie manifold in the UK sector.
21105675
13.12.2023
21.04.2024
ISLAY
Recovery strategy
The field is produced by pressure depletion.
21105675
28.02.2023
21.04.2024
ISLAY
Status
The well is producing cyclically at a low rate.
21105675
28.02.2023
21.04.2024
ISLAY
Transport
Production is routed via the Forvie-Alwyn pipeline to the British Alwyn field for separation. The gas is exported via the Frigg UK Pipeline (FUKA) to the Shell-Esso Gas and Liquids (SEGAL) terminal at St Fergus in the UK, whereas the liquids are exported to the Sullom Voe terminal in the Shetland Islands.
21105675
28.02.2023
21.04.2024
IVAR AASEN
Transport
Oil and gas are transported to the Edvard Grieg platform for final processing. The oil is exported by pipeline to the Grane Oil Pipeline, which is connected to the Sture terminal. The gas is exported in a separate pipeline to the Scottish Area Gas Evacuation (SAGE) system in the UK.
23384520
28.02.2023
21.04.2024
IVAR AASEN
Recovery strategy
The Ivar Aasen reservoir is produced by pressure support from water injection. The West Cable reservoir is produced by pressure depletion.
23384520
28.02.2023
21.04.2024
IVAR AASEN
Reservoir
Ivar Aasen produces oil from sandstone reservoirs. The field consists of the 16/1-9 Ivar Aasen discovery and the small 16/1-7 (West Cable) discovery. The reservoir in the Ivar Aasen discovery consists of fluvial sandstone of Late Triassic to Middle Jurassic age in the Skagerrak and Sleipner Formations and shallow marine sandstone in the Middle Jurassic Hugin Formation. The reservoir is at a depth of 2400 metres. It is compartmentalised and has moderate to good quality. Parts of the reservoir have an overlying gas cap. The reservoir in the West Cable discovery is in fluvial sandstone in the Middle Jurassic Sleipner Formation. It is at a depth of 2950 metres and has moderate quality.
23384520
13.12.2023
21.04.2024
IVAR AASEN
Development
Ivar Aasen is a field in the northern part of the North Sea, 30 kilometres south of the Grane and Balder fields. The water depth is 110 metres. Ivar Aasen was discovered in 2008, and the plan for development and operation (PDO) was approved in 2013. The development comprises a production, drilling and quarters (PDQ) platform with a steel jacket and a separate jack-up rig for drilling and completion. The production started in 2016. The platform is equipped for tie-in of a subsea template planned for the development of the Hanz field, and for possible development of other nearby discoveries. First stage processing is carried out on the Ivar Aasen platform, and the partly processed fluids are transported to the Edvard Grieg platform for final processing and export. Ivar Aasen is supplied with power from shore since 2023.
23384520
13.12.2023
21.04.2024
IVAR AASEN
Status
Since production start-up, additional injection and production wells have been drilled. Ivar Aasen production is on decline. The Hanz field and the discovery 16/1-29 S Symra are under development and will be tied-back to Ivar Aasen.
23384520
13.12.2023
21.04.2024
JETTE
Reservoir
Jette produced oil from sandstone of late Paleocene age in the Heimdal Formation. The reservoir is in a marine fan system at a depth of 2200 metres.
21613906
09.12.2023
21.04.2024
JETTE
Transport
The well stream was transported to Jotun B and further to Jotun A for processing and loading.
21613906
28.02.2023
21.04.2024
JETTE
Status
Jette was shut down in 2016, and the subsea template was removed in 2019.
21613906
09.12.2023
21.04.2024
JETTE
Development
Jette is a field in the central part of the North Sea, six kilometres south of the Jotun field. The water depth is 127 metres. Jette was discovered in 2009, and the plan for development and operation (PDO) was approved in 2012. The field was developed with a subsea template with two production wells tied-in to the Jotun A facility. Production started in 2013.
21613906
28.02.2023
21.04.2024
JETTE
Recovery strategy
The field was produced with natural pressure support from the aquifer.
21613906
28.02.2023
21.04.2024
JOHAN CASTBERG
Development
Johan Castberg is a field in the Barents Sea, 100 kilometres northwest of the Snøhvit field. The water depth is 370 metres. Johan Castberg consists of the three discoveries Skrugard, Havis and Drivis, proven between 2011 and 2013. The discoveries will be developed together, and the plan for development and operation (PDO) was approved in 2018. The development concept is a production, storage and offloading vessel (FPSO) with additional subsea solutions including 18 horizontal production wells and 12 injection wells.
32017325
09.12.2023
21.04.2024
JOHAN CASTBERG
Transport
The oil will be offloaded to shuttle tankers and transported to the market.
32017325
28.02.2023
21.04.2024
JOHAN CASTBERG
Status
The field is currently under development, and the production is planned to start in 2024.
32017325
09.12.2023
21.04.2024
JOHAN CASTBERG
Reservoir
The reservoirs contain oil with gas caps in three separate sandstone deposits from Late Triassic to Middle Jurassic age in the Tubåen, Nordmela and Stø Formations. They are at depths of 1250-1900 metres. Reservoir properties in the Tubåen and Stø Formations are generally good; the Nordmela Formation is more heterogeneous with several lateral barriers.
32017325
09.12.2023
21.04.2024
JOHAN CASTBERG
Recovery strategy
The field will be produced by pressure support from gas and water injection.
32017325
28.02.2023
21.04.2024
JOHAN SVERDRUP
Transport
Stabilised oil is exported from the riser platform through a new oil export pipeline that is connected to existing underground storage caverns at the Mongstad terminal. The gas is exported from the riser platform to the Kårstø terminal through a new pipeline connected to Statpipe.
26376286
28.02.2023
21.04.2024
JOHAN SVERDRUP
Recovery strategy
The field is produced by water injection as pressure support, as well as gas lift in the production wells.
26376286
13.12.2023
21.04.2024
JOHAN SVERDRUP
Development
Johan Sverdrup is a field on the Utsira High in the central part of the North Sea, 65 kilometres northeast of the Sleipner fields. The water depth is 115 metres. Johan Sverdrup was discovered in 2010 and the plan for development and operation (PDO) for Phase I was approved in 2015. The development solution for the first development phase is a field centre with four specialised platforms: living quarters, process, drilling and riser facilities. The four platforms are connected by bridges. The drilling platform has 48 well slots and is prepared for simultaneous drilling, well intervention and production. The field is operated with power from shore. In 2019, the production from Phase I started and the PDO for Phase II was approved. It includes a process platform and five subsea templates, in addition to modifications on the riser platform. The production from Phase II started in 2022/2023.
26376286
13.12.2023
21.04.2024
JOHAN SVERDRUP
Reservoir
The main reservoir contains oil in Upper Jurassic intra-Draupne sandstone. The reservoir depth is 1900 metres. The quality of the main reservoir is excellent with very high permeability. The remaining oil resources are in sandstone in the Upper Triassic Statfjord Group and Middle to Upper Jurassic Vestland Group, as well as in spiculites in the Upper Jurassic Viking Group. Oil was also proven in Permian Zechstein carbonates.
26376286
13.12.2023
21.04.2024
JOHAN SVERDRUP
Status
Johan Sverdrup accounts for about one third of the Norwegian oil production. The field is currently producing with high regularity at plateau, close to the current oil handling capacity. The oil handling capacity was increased after a capacity test in May 2023.
26376286
13.12.2023
21.04.2024
JOTUN
Transport
The Jotun FPSO is an integrated part of the Balder and Ringhorne facilities and is still in operation. It receives oil and gas from Ringhorne, and excess gas from Balder. Jotun processes and exports rich gas via Statpipe to Kårstø. The oil is exported via the production vessel at Jotun to tankers on the field.
43604
28.02.2023
21.04.2024
JOTUN
Development
Jotun is a field in the central part of the North Sea, 25 kilometres north of the Balder field. The water depth is 125 metres. Jotun was discovered in 1994, and the plan for development and operation (PDO) was approved in 1997. The field was developed with Jotun A, a combined production, storage and offloading vessel (FPSO), and Jotun B, a wellhead facility. Jotun is integrated with the Balder field. Production started in 1999.
43604
28.02.2023
21.04.2024
JOTUN
Reservoir
Jotun produced oil from sandstone of Paleocene age in the Heimdal Formation. The reservoir is at a depth of 2000 metres in a marine fan system and comprises three structures.
43604
09.12.2023
21.04.2024
JOTUN
Status
Jotun was shut down in 2016, and Jotun B was removed in 2020. The Jotun FPSO is being upgraded and will be relocated to the Balder and Ringhorne Øst fields to continue operation from 2024.
43604
09.12.2023
21.04.2024
JOTUN
Recovery strategy
The field was produced by pressure support from the aquifer and with gas lift. Produced water was injected into the Utsira Formation.
43604
28.02.2023
21.04.2024
KNARR
Development
Knarr is a field in the northern part of the North Sea, 50 kilometres northeast of the Snorre field. The water depth is 400 metres. Knarr was discovered in 2008, and the plan for development and operation (PDO) was approved in 2011. The Knarr field consists of two segments, Knarr West and Knarr Central. The development comprised a floating production, storage and offloading vessel (FPSO) and two subsea templates, including six production and injection wells. The production started in 2015.
20460988
09.12.2023
21.04.2024
KNARR
Reservoir
Knarr produced oil from Lower Jurassic sandstone in the Cook Formation. The reservoirs are at a depth of 3800 metres and have moderate to good quality.
20460988
09.12.2023
21.04.2024
KNARR
Transport
Oil was processed and stored on the Knarr FPSO and offloaded to shuttle tankers for export. Gas was exported via the Far North Liquids and Associated Gas System (FLAGS) to St Fergus in the UK.
20460988
28.02.2023
21.04.2024
KNARR
Status
Knarr was shut down in 2022 and the FPSO was removed from the field. Decommissioning of the subsea facilities must be completed by 2028.
20460988
09.12.2023
21.04.2024
KNARR
Recovery strategy
The field was produced with water injection for pressure maintenance.
20460988
28.02.2023
21.04.2024
KRISTIN
Reservoir
Kristin produces gas and condensate from Jurassic sandstone in the Garn, Ile and Tofte Formations. The reservoirs are at a depth of 4600 metres and initially had high pressure and high temperature (HPHT).
1854729
09.12.2023
21.04.2024
KRISTIN
Transport
The well stream is processed at the Kristin platform and the rich gas is sent via the Åsgard Transport System (ÅTS) to the Kårstø terminal, where NGL and condensate is extracted. Light oil separated out on Kristin is transferred to the Åsgard C facility for storage and export.
1854729
28.02.2023
21.04.2024
KRISTIN
Development
Kristin is a field in the Norwegian Sea, a few kilometres southwest of the Åsgard field. The water depth is 370 metres. Kristin was discovered in 1997, and the plan for development and operation (PDO) was approved in 2001. The field is developed with four 4-slot subsea templates tied-back to a semi-submersible facility for processing. The production started in 2005. An amended PDO was approved in 2007. The Tyrihans and Maria fields are tied to the Kristin facility. A PDO for Kristin South, including development of the Kristin Q segment and Lavrans, was approved in 2022.
1854729
13.12.2023
21.04.2024
KRISTIN
Recovery strategy
The field is produced by pressure depletion. Low pressure production was implemented in 2014.
1854729
28.02.2023
21.04.2024
KRISTIN
Status
Kristin production is in the tail phase. The Kristin South development is ongoing and comprises development of the Kristin Q segment and the Lavrans field. Expected production start-up is in 2024.
1854729
28.02.2023
21.04.2024
KVITEBJØRN
Reservoir
Kvitebjørn produces gas and condensate from Middle Jurassic sandstone in the Brent Group. Secondary reservoirs are in the Lower Jurassic Cook Formation and Upper Triassic Statfjord Group. The reservoirs are at a depth of 4000 metres and initially had high pressure and high temperature (HPHT). The reservoir quality is good.
1036101
14.12.2023
21.04.2024
KVITEBJØRN
Status
The production on Kvitebjørn is declining. New producers are being drilled, and further drilling is planned.
1036101
14.12.2023
21.04.2024
KVITEBJØRN
Transport
Rich gas is transported through the Kvitebjørn Gas Pipeline to the Kollsnes terminal, while condensate is transported in a pipeline tied to the Troll Oil Pipeline II and further to the Mongstad terminal.
1036101
28.02.2023
21.04.2024
KVITEBJØRN
Development
Kvitebjørn is a field in the Tampen area in the northern part of the North Sea, 15 kilometres southeast of the Gullfaks field. The water depth is 190 metres. Kvitebjørn was discovered in 1994, and the plan for development and operations (PDO) was approved in 2000. The field is developed with an integrated accommodation, drilling and processing facility with a steel jacket. The production started in 2004. An amended PDO including several deposits and prospects was approved in 2006.
1036101
14.12.2023
21.04.2024
KVITEBJØRN
Recovery strategy
The field is produced by pressure depletion. Gas pre-compression started in 2014 and has increased the gas recovery from the field.
1036101
28.02.2023
21.04.2024
LILLE-FRIGG
Transport
The well stream was transported directly to the Frigg field for processing. The gas was transported via pipeline to St Fergus in the UK. Stabilised condensate was transported via Frostpipe to the Oseberg field and onward to the Sture terminal.
43583
28.02.2023
21.04.2024
LILLE-FRIGG
Reservoir
The Lille-Frigg field produced gas and condensate from sandstone of Jurassic age in the Brent Group. The reservoir is at a depth of 3650 metres.
43583
09.12.2023
21.04.2024
LILLE-FRIGG
Development
Lille-Frigg is a field in the central part of the North Sea, 16 kilometres east of the Frigg field. The water depth is 110 metres. Lille-Frigg was discovered in 1975, and the plan for development and operation (PDO) was approved in 1991. The field was developed with a subsea installation with three production wells tied-back to the Frigg field. The production started in 1994.
43583
09.12.2023
21.04.2024
LILLE-FRIGG
Recovery strategy
The field was produced by pressure depletion.
43583
28.02.2023
21.04.2024
LILLE-FRIGG
Status
Lille-Frigg was shut down in 1999, and the installation was removed in 2001. The ongoing development of the Fulla field includes a redevelopment of Lille-Frigg as a subsea tie-back to the production platform on the Hugin field.
43583
09.12.2023
21.04.2024
MARIA
Recovery strategy
The field is produced by water injection for pressure support. The wells are equipped with gas lift.
26465170
28.02.2023
21.04.2024
MARIA
Reservoir
Maria produces oil and gas from massive sandstone with shale layers in the Middle Jurassic Garn Formation. The reservoir is at a depth of 3800 metres.
26465170
14.12.2023
21.04.2024
MARIA
Status
Maria Phase 2 will increase recovery from the middle part of the Garnformation, which is undrained by current wells. Drilling of the wells in Maria Phase 2 is planned for 2024, with start-up of production in mid-2025.
26465170
14.12.2023
21.04.2024
MARIA
Development
Maria is a field on Haltenbanken in the Norwegian Sea, 25 kilometres east of the Kristin field. The water depth is 300 metres. Maria was discovered in 2010, and the plan for development and production (PDO) was approved in 2015. The field has initially been developed with two templates with five producers and two injectors, tied-back to the Kristin field. Gas for gas lift is supplied from the Åsgard B facility via the Tyrihans D template. Sulphate-reduced water for injection is supplied from Heidrun. The production started in 2017. An amended PDO for Maria Phase 2, including a new template and four wells, was approved in June 2023.
26465170
14.12.2023
21.04.2024
MARIA
Transport
The well stream is routed to the Kristin platform for processing and further export together with the gas and oil from the Kristin and Tyrihans fields. Stabilised oil is transported from Kristin to Åsgard C and further offloaded to shuttle tankers. The rich gas is sent via the Åsgard Transport System (ÅTS) to the Kårstø terminal, where NGL and condensate is extracted.
26465170
28.02.2023
21.04.2024
MARTIN LINGE
Development
Martin Linge is a field located near the border to the UK sector in the northern part of the North Sea, 42 kilometres west of the Oseberg field. The water depth is 115 metres. Martin Linge was discovered in 1978, and the plan for development and operation (PDO) was approved in 2012. The development concept is a fully integrated fixed production platform and a floating storage and offloading unit (FSO) for oil storage. The installation is supplied with power from shore. A PDO exemption for the Herja discovery and the Hervor prospect was granted in 2017. The production started in 2021.
21675447
13.12.2023
21.04.2024
MARTIN LINGE
Recovery strategy
The gas is produced by pressure depletion. Oil from the Frigg reservoir is produced by natural aquifer drive and gas lift. Some produced water is reinjected.
21675447
28.02.2023
21.04.2024
MARTIN LINGE
Reservoir
Martin Linge produces mainly gas and condensate from sandstone of Middle Jurassic age in the Brent Group. The reservoirs are structurally complex with high pressure and high temperature (HPHT) at depths of 3700-4400 metres. In addition, oil is produced from the Frigg Formation of Eocene age. The Frigg reservoir is at a depth of 1750 metres and has good quality.
21675447
13.12.2023
21.04.2024
MARTIN LINGE
Status
New 4D seismic data gathered in July 2023 will provide additional information for updating reservoir models and estimates of in-place volumes and reserves. Work is ongoing to prepare for the second drilling campaign on Martin Linge which is planned to start in early 2024.
21675447
13.12.2023
21.04.2024
MARTIN LINGE
Transport
Rich gas is transported to the Frigg UK pipeline (FUKA), and on to the Shell-Esso Gas and Liquid (SEGAL) terminal at St Fergus in the UK. Oil and condensate are exported via tankers from the FSO.
21675447
28.02.2023
21.04.2024
MARULK
Transport
The well stream is sent to the Norne FPSO for processing. The gas is then transported via the Åsgard Transport System (ÅTS) to the Kårstø terminal.
18212090
28.02.2023
21.04.2024
MARULK
Status
The production from Marulk is in the decline phase. It is limited by the commercial agreement with Norne and the gas handling capacity on the Norne FPSO. Marulk utilises excess capacity when available on the FPSO.
18212090
14.12.2023
21.04.2024
MARULK
Reservoir
Marulk produces gas from Cretaceous sandstone in the Lysing and Lange Formations. The reservoirs are at a depth of 2800-2850 metres. Both reservoirs are in turbidite fans and have moderate to good quality.
18212090
14.12.2023
21.04.2024
MARULK
Development
Marulk is a field in the Norwegian Sea, 25 kilometres southwest of the Norne field. The water depth is 370 metres. Marulk was discovered in 1992, and the plan for development and operation (PDO) was approved in 2010. The field is developed with a subsea template tied-back to the production, storage and offloading vessel (FPSO) Norne. The production started in 2012.
18212090
14.12.2023
21.04.2024
MARULK
Recovery strategy
The field is produced by pressure depletion.
18212090
28.02.2023
21.04.2024
MIKKEL
Status
The production from Mikkel is governed by the reserved capacity on Åsgard B. The field is currently producing at its full potential with four wells on production. Two interventions are planned for Mikkel in 2024. A Mikkel Late Life project is in its initial phase.
1630514
14.12.2023
21.04.2024
MIKKEL
Development
Mikkel is a field in the eastern part of the Norwegian Sea, 30 kilometres north of the Draugen field. The water depth is 220 metres. Mikkel was discovered in 1987, and the plan for development and operation (PDO) was approved in 2001. The field is developed with two subsea templates tied-back to the Åsgard B facility. The production started in 2003.
1630514
14.12.2023
21.04.2024
MIKKEL
Recovery strategy
The field is produced by pressure depletion.
1630514
28.02.2023
21.04.2024
MIKKEL
Reservoir
Mikkel produces gas and condensate from Jurassic sandstone in the Garn, Ile and Tofte Formations. The field consists of six structures separated by faults, all with good reservoir quality. It has a 300-metre-thick gas/condensate column and a thin underlying oil zone. The reservoir depth is 2500 metres.
1630514
14.12.2023
21.04.2024
MIKKEL
Transport
The well stream from Mikkel is combined with the well stream from the Midgard deposit and routed to the Åsgard B facility for processing. The condensate is separated from the gas and stabilised before being shipped together with condensate from the Åsgard field. The condensate is sold as oil. The rich gas is transported via the Åsgard Transport System (ÅTS) to the Kårstø terminal for separation of the natural gas liquids (NGL). The dry gas is transported from Kårstø to continental Europe via the Europipe II pipeline.
1630514
28.02.2023
21.04.2024
MIME
Reservoir
Mime produced oil from sandstone of Late Jurassic age in the Ula Formation. The reservoir depth is 4200 metres.
43792
09.12.2023
21.04.2024
MIME
Development
Mime is a field in the southern part of the Norwegian sector in the North Sea, six kilometres northeast of the Cod field. The water depth is 80 metres. Mime was discovered in 1982, and the plan for development and operation (PDO) was approved in 1992. The field was developed with a subsea well tied to the Cod facility. The production started 1993.
43792
09.12.2023
21.04.2024
MIME
Recovery strategy
The filed was produced by pressure depletion.
43792
28.02.2023
21.04.2024
MIME
Status
Mime was shut down in 1993, and the facility was removed in 1999.
43792
09.12.2023
21.04.2024
MIME
Transport
The well stream from Mime was mixed with gas and condensate from the Cod field and transported to the Ekofisk Complex. The oil was transported further to Teesside in the UK, whereas the gas was used at the Ekofisk Complex.
43792
28.02.2023
21.04.2024
MORVIN
Recovery strategy
The field is produced by pressure depletion.
4966234
28.02.2023
21.04.2024
MORVIN
Transport
The well stream from Morvin is transported by a heated, 20-kilometre pipeline to the Åsgard B facility for processing. The condensate is separated from the gas and stabilised before being shipped together with condensate from the Åsgard field. The condensate is sold as oil. The rich gas is transported via the Åsgard Transport System (ÅTS) to the Kårstø terminal for separation of the natural gas liquids (NGL). The dry gas is transported from Kårstø to continental Europe via the Europipe II pipeline.
4966234
14.12.2023
21.04.2024
MORVIN
Development
Morvin is a field in the Norwegian Sea, 15 kilometres west of the Åsgard field. The water depth is 360 metres. Morvin was discovered in 2001, and the plan for development and production (PDO) was approved in 2008. The field is developed with two 4-slot subsea templates, tied to the Åsgard B facility. The production started in 2010.
4966234
14.12.2023
21.04.2024
MORVIN
Reservoir
Morvin produces gas and oil from Jurassic sandstone in the Tilje, Tofte, Ile, Garn and Spekk Formations. The reservoirs are in a rotated and tilted fault block at depths of 4500-4700 metres. They have high pressure and high temperature (HPHT).
4966234
14.12.2023
21.04.2024
MORVIN
Status
Drilling of new wells on Morvin is challenging. The focus is therefore to continue production from current wells, for example by conducting well interventions. In 2023, two coiled tubing operations have been performed on existing wells.
4966234
14.12.2023
21.04.2024
MUNIN
Transport
The gas will be exported in a new pipeline from Hugin A via Statpipe to the Kårstø terminal. The oil will be transported to the Hugin A facility for further processing and transport.
42002476
23.08.2023
21.04.2024
MUNIN
Development
Munin is a field in in the Yggdrasil area in the central North Sea, 35 kilometres south of the Oseberg field. The water depth is 110 metres. The field comprises several discoveries and extends over 200 square kilometres. The first discovery was made in 1997 with well 30/11-5. Since then, a further ten discoveries have been made. The discovery wellbore for Munin is 30/11-8 S, drilled in 2011. The plan for development and operation (PDO) was approved in June 2023. The development concept includes subsea tie-back of the deposits to an unmanned processing platform located in the northern part of the Yggdrasil area. The platform will be tied-back to the Hugin A processing platform in the southern Yggdrasil area.
42002476
14.12.2023
21.04.2024
MUNIN
Reservoir
The reservoirs contain gas and oil mainly in Middle Jurassic sandstone of the Brent Group at depths of 3200-3650 metres. The Munin area is geologically complex, and the deposits have varying reservoir and fluid properties.
42002476
14.12.2023
21.04.2024
MUNIN
Recovery strategy
The deposits will be produced with different recovery strategies. The largest oil deposits will be produced with water injection, while gas deposits and smaller oil deposits will be produced by pressure depletion. Oil producers will be equipped with gas lift.
42002476
14.12.2023
21.04.2024
MUNIN
Status
The field is under development. The development of Munin is coordinated with the development of the Hugin and Fulla fields in the Yggdrasil area. The production is planned to start in 2027. There are also plans to drill several untested structures which may be produced through available well slots or new subsea templates.
42002476
14.12.2023
21.04.2024
MURCHISON
Status
Murchison was shut down in 2014, and the platform was removed in 2017.
43665
09.12.2023
21.04.2024
MURCHISON
Transport
The well stream was sent through the Brent Pipeline System to Sullom Voe in the Shetland Islands in the UK.
43665
28.02.2023
21.04.2024
MURCHISON
Recovery strategy
The field was produced with pressure support from water injection.
43665
28.02.2023
21.04.2024
MURCHISON
Reservoir
Murchison produced oil from sandstone of Middle Jurassic age in the Brent Group.
43665
28.02.2023
21.04.2024
MURCHISON
Development
Murchison is a field in the Tampen area in the northern part of the North Sea, on the border between the Norwegian and UK sectors. The Norwegian share of the field was 22.2 per cent. Murchison was discovered in 1975, and the plan for development and operation was approved in 1976. The field was developed in the UK sector with a combined drilling, accommodation and production facility. The British and Norwegian licensees and authorities entered into an agreement in 1979 concerning common exploitation of the resources on the Murchison field. The production started in 1980.
43665
09.12.2023
21.04.2024
NJORD
Transport
Produced oil is transported by pipeline to the storage vessel Njord Bravo, and further by tankers to the market. Gas from the field is exported through a 40-kilometre pipeline connected to the Åsgard Transport System (ÅTS) and further to the Kårstø terminal.
43751
28.02.2023
21.04.2024
NJORD
Development
Njord is a field in the Norwegian Sea, 30 kilometres west of the Draugen field. The water depth is 330 metres. The Njord field was discovered in 1986, and the plan for development and operation (PDO) was approved in 1995. Njord is developed with a floating steel platform unit, Njord A, containing drilling and processing facilities, and a storage vessel, Njord Bravo. The production started in 1997 and stopped temporarily in 2016 when the Njord A platform was shut down and towed to land for reinforcement and modifications. An amended PDO for the upgrading was approved in 2017. Production from the Njord field resumed at the end of 2022. The fields Hyme, Bauge and Fenja are tied-back to Njord.
43751
14.12.2023
21.04.2024
NJORD
Status
Drilling of new wells started in August 2023. Njord is planned to receive power from shore via the Draugen platform in a few years and thus be partially electrified.
43751
14.12.2023
21.04.2024
NJORD
Recovery strategy
Initial production strategy was gas injection for pressure support in parts of the reservoir and pressure depletion in the rest of the reservoir. After gas export started in 2007, only minor volumes of gas have been injected. Due to the complex reservoir with many faults, the field has a relatively low recovery factor.
43751
28.02.2023
21.04.2024
NJORD
Reservoir
Njord produces oil from Jurassic sandstone in the Tilje and Ile Formations. The field has a complicated fault pattern with only partial communication between the segments. The reservoir quality varies in the different reservoir zones. The reservoir depth is 2850 metres.
43751
14.12.2023
21.04.2024
NORDØST FRIGG
Recovery strategy
The field was produced by pressure depletion.
43568
28.02.2023
21.04.2024
NORDØST FRIGG
Development
Nordøst Frigg is a field in the central part of the North Sea. The water depth is 110 metres. The field was discovered in 1974, and the plan for development and operation (PDO) was approved in 1980. Nordøst-Frigg was developed with a seabed template with six wells and was remotely operated from the Frigg field using a control tower. The control tower consisted of a deck and a 126-metre-high steel structure attached to a concrete foundation. The production started in 1983.
43568
09.12.2023
21.04.2024
NORDØST FRIGG
Status
Nordøst Frigg was shut down in 1993, and the facility was removed in 1996. The development of the Yggdrasil area may provide an opportunity for a redevelopment of the field.
43568
09.12.2023
21.04.2024
NORDØST FRIGG
Reservoir
Nordøst Frigg produced gas from sandstone of Eocene age in the Frigg Formation. The reservoir is at a depth of 1950 metres. It has pressure communication with the reservoir on the Frigg field via the aquifer.
43568
09.12.2023
21.04.2024
NORDØST FRIGG
Transport
The well stream was sent via pipeline to Frigg (TCP2) for further processing before export through the Frigg Norwegian Pipeline to St Fergus in the UK.
43568
28.02.2023
21.04.2024
NORNE
Development
Norne is a field in the Norwegian Sea, 80 kilometres north of the Heidrun field. The water depth is 380 metres. Norne was discovered in 1992, and the plan for development and operation (PDO) was approved in 1995. The field has been developed with a production, storage and offloading vessel (FPSO), connected to seven subsea templates. The production started in 1997. An amended PDO for several deposits in the area around the Norne and Urd fields was approved in 2008. The Alve, Urd, Skuld and Marulk fields are tied-back to the Norne FPSO.
43778
14.12.2023
21.04.2024
NORNE
Recovery strategy
The field is produced by water injection as the drive mechanism. Gas injection ceased in 2005 and all gas is exported.
43778
28.02.2023
21.04.2024
NORNE
Status
The production from Norne is in the decline phase. Production challenges are related to reservoir souring, increasing water cut, scale and well integrity due to aging facilities. The key activities include identifying new well targets and optimising the water injection strategy. Tie-back of the Verdande field and the discovery 6507/3-8 Andvare to the Norne FPSO are being prepared.
43778
14.12.2023
21.04.2024
NORNE
Transport
The oil is loaded to tankers for export. Gas export started in 2001 through a dedicated pipeline to the Åsgard field and via Åsgard Transport System (ÅTS) to the Kårstø terminal.
43778
28.02.2023
21.04.2024
NORNE
Reservoir
Norne produces oil and gas from Jurassic sandstone. Oil is mainly found in the Ile and Tofte Formations, and gas in the Not Formation. The reservoir is at a depth of 2500 metres and has good quality.
43778
14.12.2023
21.04.2024
NOVA
Status
The production from Nova is in accordance with the reserved capacity at the Gjøa processing facility. The main focus is to optimise pressure support to the production wells.
33197696
14.12.2023
21.04.2024
NOVA
Transport
The well stream is routed to the Gjøa platform for processing and export. The oil is transported further through the Troll Oil Pipeline II to the Mongstad terminal, and the gas is exported via the Far North Liquids and Associated Gas System (FLAGS) pipeline to St Fergus in the UK.
33197696
28.02.2023
21.04.2024
NOVA
Recovery strategy
The field is produced by pressure support from water injection and with gas lift.
33197696
28.02.2023
21.04.2024
NOVA
Reservoir
The reservoir contains oil with a gas cap in sandstone of Late Jurassic age in the Heather Formation of the Viking Group, at a depth of 2500 metres. The reservoir quality is good.
33197696
14.12.2023
21.04.2024
NOVA
Development
Nova is a field in the northern part of the North Sea, 20 kilometres southwest of the Gjøa field. The water depth is 370 metres. Nova was proven in 2012, and the plan for development and operation (PDO) was approved in 2018. The development consists of two 4-slot subsea templates, one with three oil producers and one with three water injectors, tied-back to the Gjøa platform. The production started in 2022.
33197696
14.12.2023
21.04.2024
ODA
Recovery strategy
The field is produced by pressure support from water injection.
29412516
28.02.2023
21.04.2024
ODA
Transport
The well stream is transported by pipeline to the Ula field for processing. The oil is exported to Ekofisk and then onward in Norpipe to the Teesside terminal in the UK. The gas is sold to Ula for injection into the reservoir to increase oil recovery from the Ula field.
29412516
28.02.2023
21.04.2024
ODA
Status
Drilling of the production wells has shown that the reservoir is more complex and smaller than anticipated. Consequently, the estimated recoverable volumes have been decreased. In 2023, the production has steadily declined with increasing water cut.
29412516
14.12.2023
21.04.2024
ODA
Reservoir
Oda produces oil from sandstone of Late Jurassic age. The main reservoir is in the Ula Formation at a depth of 2900 metres. The reservoir is steeply dipping and has good quality.
29412516
14.12.2023
21.04.2024
ODA
Development
Oda is a field in the southern part of the Norwegian sector in the North Sea, 14 kilometres east of the Ula field. The water depth is 65 metres. Oda was discovered in 2011, and the plan for development and operation (PDO) was approved in 2017. Oda is developed with one subsea template with two production wells and one injection well tied-back to the Ula field. The production started in 2019.
29412516
14.12.2023
21.04.2024
ODIN
Development
Odin is a field in the central part of the North Sea, eight kilometres northeast of the Frigg field. The water depth is 100 metres. Odin was discovered in 1974, and the plan for development and operation (PDO) was approved in 1980. The development solution was a facility with simplified drilling and processing equipment and living quarters. The production started in 1984.
43610
09.12.2023
21.04.2024
ODIN
Status
Odin was shut down in 1994, and the facility was removed in 1997. The development of the Yggdrasil area may provide an opportunity for a redevelopment of the field.
43610
09.12.2023
21.04.2024
ODIN
Reservoir
Odin produced gas from sandstone of Eocene age in the Frigg Formation. The reservoir is at a depth of 2000 metres. It has pressure communication with the Frigg reservoir via the aquifer.
43610
09.12.2023
21.04.2024
ODIN
Transport
The gas was sent via pipeline to Frigg (TCP2) for further processing before export through the Frigg Norwegian Pipeline to the Shell-Esso Gas and Liquids (SEGAL) terminal at St Fergus in the UK.
43610
28.02.2023
21.04.2024
ODIN
Recovery strategy
The field was produced by pressure depletion. The reservoir had limited water drive compared with the other fields in the Frigg area.
43610
28.02.2023
21.04.2024
ORMEN LANGE
Development
Ormen Lange is a field in the southern part of the Norwegian Sea, 120 kilometres west-northwest of the Nyhamna processing plant. The water depth varies from 800 to more than 1100 metres. Ormen Lange was discovered in 1997, and the plan for development and operation (PDO) was approved in 2004. Deep water and seabed conditions made the development very challenging and triggered development of new technology. The field has been developed in several phases. The development comprises four 8-slot subsea templates with a total of 24 production wells. The production started in 2007 from two subsea templates in the central part of the field. In 2009 and 2011, two additional templates were installed in the southern and northern parts of the field, respectively. An amended PDO for subsea gas compression was approved in 2022.
2762452
14.12.2023
21.04.2024
ORMEN LANGE
Status
The production from Ormen Lange is declining, and increased recovery is a key focus. Subsea gas compression is currently being installed.
2762452
14.12.2023
21.04.2024
ORMEN LANGE
Reservoir
Ormen Lange produces very dry gas and small amounts of condensate from Paleocene sandstone in the Egga Formation. The reservoir is at a depth of 2700-2900 metres below sea level and has excellent quality.
2762452
14.12.2023
21.04.2024
ORMEN LANGE
Transport
The well stream is transported in two multiphase pipelines to the Nyhamna terminal for processing. Gas is exported via the Langeled pipeline and Sleipner to Easington in the UK. Condensate is exported by ship from Nyhamna.
2762452
14.12.2023
21.04.2024
ORMEN LANGE
Recovery strategy
The field is produced by pressure depletion.
2762452
28.02.2023
21.04.2024
OSEBERG
Development
Oseberg is a field in the northern part of the North Sea. The water depth is 100 metres. Oseberg was discovered in 1979, and the plan for development and operation (PDO) was approved in 1984. The field was developed in multiple phases and the production started in 1988. The Oseberg Field Centre in the south originally consisted of two facilities: the process and accommodation facility Oseberg A and the drilling and water injection facility Oseberg B. A PDO for Oseberg C was approved in 1988 and included an integrated production, drilling and quarters facility (PDQ) in the northern part of the field. A PDO for the gas phase was approved in 1996 and included a facility for gas processing, Oseberg D. A PDO for the western flank, Vestflanken, was approved in 2003 and included a subsea template tied-back to Oseberg B. A PDO for Oseberg Delta was approved in 2005 and included a subsea template tied-back to Oseberg D. A PDO for Oseberg Delta II was approved in 2013 and included two subsea templates tied-back to the Oseberg Field Centre. A PDO for Oseberg Vestflanken II was approved in 2016 and included an unmanned wellhead platform (UWP), Oseberg H, and new wells from the existing G4 template on the western flank. A PDO for Oseberg Field Centre low pressure gas production and power from shore was approved in 2022. The Oseberg Øst, Oseberg Sør and Tune fields are tied to the Oseberg Field Centre.
43625
14.12.2023
21.04.2024
OSEBERG
Recovery strategy
The Oseberg field is produced by pressure depletion, as well as pressure maintenance using gas and water injection in some structures. Massive upflank gas injection in the main field has provided excellent oil displacement, and a large gas cap has developed. Injection gas was previously imported from Troll Øst. Gas blowdown has gradually started in main parts of the field, while other parts are maintaining injection.
43625
14.12.2023
21.04.2024
OSEBERG
Transport
The oil is transported through the Oseberg Transport System (OTS) to the Sture terminal. The gas is transported via the Oseberg Gas Transport (OGT) pipeline and the new Heimdal bypass on the seabed to the Statpipe-system and further to continental Europe, as well as via the Vesterled pipeline to the UK.
43625
14.12.2023
21.04.2024
OSEBERG
Status
The strategy for the main Oseberg reservoirs is to balance oil production with increasing gas offtake. To increase oil recovery from the northern part of the field, the inlet pressure on the Oseberg C facility has been reduced. New production wells are continuously being drilled to enhance oil recovery. Gas blowdown from the Oseberg Delta structure started in 2022. The first dedicated gas production wells were drilled in 2023.
43625
14.12.2023
21.04.2024
OSEBERG
Reservoir
Oseberg produces oil and gas from sandstone of Middle Jurassic age in the Brent Group. The main reservoirs are in the Oseberg and Tarbert Formations, but there is also production from the Etive and Ness Formations. The reservoirs are at depths of 2300-2700 metres and have generally good quality. The field is divided into several structures. The satellite structures west of the main structure also produce from the Statfjord Group and Cook Formation.
43625
14.12.2023
21.04.2024
OSEBERG SØR
Reservoir
Oseberg Sør produces oil and gas from several deposits in sandstone of Jurassic age. The main reservoirs are in the Tarbert and Heather Formations. The reservoirs are at depths of 2200-2800 metres and have moderate quality.
43645
09.12.2023
21.04.2024
OSEBERG SØR
Status
Further maturation of drilling targets is a focus area, but lack of available well slots is a challenge. Several projects are under evaluation to increase recovery from Oseberg Sør.
43645
28.02.2023
21.04.2024
OSEBERG SØR
Transport
The oil is transported from the Oseberg Sør facility by pipeline to the Oseberg Field Centre, where it is processed. It is then transported through the Oseberg Transport System (OTS) to the Sture terminal. The gas is transported via the Omega Nord deposit to the Oseberg Field Centre for processing and then to the market through Oseberg Gas Transport (OGT), either to Statpipe or Vesterled.
43645
28.02.2023
21.04.2024
OSEBERG SØR
Development
Oseberg Sør is a field in the northern part of the North Sea, just south of the Oseberg field. The water depth is 100 metres. Oseberg Sør was discovered in 1984, and the plan for development and operation (PDO) was approved in 1997. The field has been developed with an integrated steel facility with accommodation, drilling module and first-stage oil/gas separation. Final processing of oil and gas takes place at the Oseberg Field Centre. The production started in 2000. Subsequently, several deposits on the field have been developed with subsea templates tied-back to the Oseberg Sør facility: the PDO for Oseberg Sør J was approved in 2003, a PDO exemption for the G-Central structure was granted in 2008, and the PDO for the Stjerne deposit was approved in 2011. A PDO for the Oseberg Field Centre low pressure gas production and power from shore to the Oseberg Sør facility was approved in 2022.
43645
13.12.2023
21.04.2024
OSEBERG SØR
Recovery strategy
The field is mainly produced with water and gas injection. In parts of the field, water alternating gas (WAG) injection is being used. Water for injection is produced from the Utsira Formation. Some of the structures are produced by pressure depletion.
43645
09.12.2023
21.04.2024
OSEBERG ØST
Development
Oseberg Øst is a field in the northern part of the North Sea, 15 kilometres east of the Oseberg field. The water depth is 160 metres. Oseberg Øst was discovered in 1981, and the plan for development and operation (PDO) was approved in 1996. The field has been developed with an integrated fixed facility with accommodation, drilling equipment and first-stage separation of oil, water, and gas. The production started in 1999. A PDO exemption for the Beta East segment was granted in 2004.
43639
13.12.2023
21.04.2024
OSEBERG ØST
Recovery strategy
The field is produced by partial pressure support from both water injection and gas injection. Water for injection is produced from the Utsira Formation.
43639
28.02.2023
21.04.2024
OSEBERG ØST
Status
Oseberg Øst is at the tail end of its production phase and the main challenge is to maximise the oil recovery within the field lifetime. To increase production, the focus is on drainage strategy, including optimisation of injection and well interventions. Maximising the gas production rate is also of importance, as the produced gas is used as fuel supply for the platform power generator.
43639
09.12.2023
21.04.2024
OSEBERG ØST
Reservoir
Oseberg Øst produces oil from Middle Jurassic sandstone in the Brent Group. The field consists of two structures which are separated by a sealing fault. The structures contain several oil-bearing layers with variable reservoir characteristics. The reservoirs are at depths of 2700-3100 metres.
43639
09.12.2023
21.04.2024
OSEBERG ØST
Transport
The oil is sent by pipeline to the Oseberg Field Centre for further processing and transport through the Oseberg Transport System (OTS) to the Sture terminal. The gas is mainly used for injection, gas lift and fuel.
43639
28.02.2023
21.04.2024
OSELVAR
Recovery strategy
The field was produced by pressure depletion.
5506919
28.02.2023
21.04.2024
OSELVAR
Development
Oselvar is a field in the southern part of the Norwegian sector in the North Sea, 20 kilometres southwest of the Ula field. The water depth is 70 metres. Oselvar was discovered in 1991, and the plan for development and operation (PDO) was approved in 2009. The development concept was a subsea template with three horizontal production wells tied to Ula. The production started in 2012.
5506919
09.12.2023
21.04.2024
OSELVAR
Reservoir
Oselvar produced oil and gas from sandstone of Paleocene age in the Forties Formation. The reservoir is at a depth of 2900-3250 metres.
5506919
09.12.2023
21.04.2024
OSELVAR
Status
Oselvar was shut down in 2018, and the facility was removed in 2022.
5506919
09.12.2023
21.04.2024
OSELVAR
Transport
The well stream was transported by pipeline to the Ula field for processing. The gas was used for injection in Ula for improved recovery, while the oil was transported by pipeline to the Ekofisk field for further export.
5506919
28.02.2023
21.04.2024
REV
Development
Rev is a field close to the UK border in the southern part of the Norwegian sector in the North Sea, four kilometres south of the Varg field. The water depth is 90-110 metres. Rev was discovered in 2001, and the plan for development and operation (PDO) was approved in 2007. The field is developed with a subsea template including three production wells connected to the Armada field on the UK continental shelf. The production started in 2009.
4467554
13.12.2023
21.04.2024
REV
Status
The estimated volumes have been reduced since the PDO. The field has been producing with very short production periods and long pressure build-up periods since 2013. Changes in the cyclical production frequency have provided longer production forecast from Rev.
4467554
28.02.2023
21.04.2024
REV
Transport
The well stream is routed through a 10-kilometre pipeline to the Armada field in the UK sector and further to the Teesside terminal for final processing. The condensate is sold as stabilised crude oil.
4467554
28.02.2023
21.04.2024
REV
Reservoir
Rev produces gas and some condensate from intra-Heather sandstone of Late Jurassic age. The reservoir is a simple structure divided into two segments. It surrounds a salt structure at 3000 metres depth. The reservoir quality is good. Measurements show that the reservoir is in pressure communication with the Varg field.
4467554
09.12.2023
21.04.2024
REV
Recovery strategy
The field is produced by pressure depletion.
4467554
28.02.2023
21.04.2024
RINGHORNE ØST
Recovery strategy
The field is produced by natural water drive from a regional aquifer to the north and east of the structure. The wells have gas lift to optimise production, and this will be expanded due to increasing water production.
3505505
28.02.2023
21.04.2024
RINGHORNE ØST
Reservoir
Ringhorne Øst produces oil with associated gas from Jurassic sandstone in the Statfjord Group. The reservoir is at a depth of 1940 metres and has very good quality.
3505505
09.12.2023
21.04.2024
RINGHORNE ØST
Development
Ringhorne Øst is a field in the central part of the North Sea, six kilometres northeast of the Balder field. The water depth is 130 metres. Ringhorne Øst was discovered in 2003, and the plan for development and operation (PDO) was approved in 2005. The field is developed with four production wells drilled from the Ringhorne wellhead platform. The production started in 2006.
3505505
13.12.2023
21.04.2024
RINGHORNE ØST
Transport
Production is routed from the Ringhorne wellhead platform to the Balder production, storage and offloading vessel (FPSO) for processing, storage and export. The oil is transported by tankers. Any surplus gas is sent to the Jotun FPSO for export via Statpipe to the Kårstø terminal.
3505505
28.02.2023
21.04.2024
RINGHORNE ØST
Status
The field is in its tail production phase. A new infill well is planned to be drilled. Ringhorne Øst will also benefit from an amended PDO for Balder and Ringhorne that was approved in 2020. Field lifetime will be prolonged, and production can benefit from increased capacity in the area. The Jotun FPSO is currently at a shipyard undergoing maintenance and upgrades. It is scheduled to be back on the field in 2024. Until then, excess gas is being injected in the Balder and Ringhorne Øst fields.
3505505
24.02.2024
21.04.2024
SIGYN
Status
The field is in its late tail production phase. An infill well was put on production on Sigyn East in 2022 and the existing producer was converted to a gas injector. Production is limited by well performance and available flowlines. Currently, there is only production from Sigyn East. Production from Sigyn West is limited because the available flowlines are used to inject gas and produce oil from Sigyn East.
1630100
09.12.2023
21.04.2024
SIGYN
Development
Sigyn is a field in the central part of the North Sea, 12 kilometres southeast of the Sleipner Øst field. The water depth is 70 metres. Sigyn was discovered in 1982, and the plan for development and operation (PDO) was approved in 2001. The field is developed with a 4-slot subsea template tied-back to the Sleipner A facility. The production started in 2002.
1630100
13.12.2023
21.04.2024
SIGYN
Reservoir
The Sigyn field produces gas and condensate from two separate accumulations, Sigyn West and Sigyn East. Sigyn West contains rich gas and condensate, while Sigyn East contains light oil. The reservoirs are in Triassic sandstone of the Skagerrak Formation, at a depth of 2700 metres.
1630100
09.12.2023
21.04.2024
SIGYN
Transport
The well stream is sent through two pipelines to the Sleipner A facility. Sales gas is exported from Sleipner A via Gassled (Area D). Unstable oil is exported by pipeline to the Kårstø terminal for final processing.
1630100
28.02.2023
21.04.2024
SIGYN
Recovery strategy
Sigyn East is produced with pressure support from gas injection and Sigyn West is produced by pressure depletion.
1630100
28.02.2023
21.04.2024
SINDRE
Reservoir
Sindre contains oil in Upper Triassic to Lower Jurassic sandstone in the Lunde Formation, Statfjord Group and Dunlin Group. The main reservoir is at a depth of 3100 metres. The reservoir quality is good, but sealing faults reduce communication in the reservoir. Reservoir sandstone is also identified in Middle Jurassic Brent Group.
29401178
09.12.2023
21.04.2024
SINDRE
Status
Sindre has been shut down for a long time due to low reservoir pressure. In 2023, the field has had periods with limited production after pressure build-up. Cyclic production is planned in the future. A new well is planned to be drilled in 2023/2024 in the area between Sindre and Gimle fields. Sindre and Gimle have recently been merged into a unit called Brime.
29401178
14.12.2023
21.04.2024
SINDRE
Development
Sindre is a field in the northern part of the North Sea, three kilometres northeast of the Gullfaks field. The water depth is 250 metres. Sindre was discovered and granted exemption from a plan for development and operation (PDO) in 2017. The field is developed with one production well drilled from the Gullfaks C platform. The production started in 2017.
29401178
14.12.2023
21.04.2024
SINDRE
Transport
The well stream from Sindre is processed together with the production from the Gimle field at the Gullfaks C facility, and transported further with oil and gas from the Gullfaks field.
29401178
28.02.2023
21.04.2024
SINDRE
Recovery strategy
The field is produced by pressure depletion, but rapid pressure decline may necessitate pressure support.
29401178
28.02.2023
21.04.2024
SKARV
Recovery strategy
The field is produced with pressure support by gas injection and gas lift.
4704482
28.02.2023
21.04.2024
SKARV
Development
Skarv is a field in the northern part of the Norwegian Sea, 35 kilometres southwest of the Norne field. The water depth is 350-450 metres. Skarv was discovered in 1998, and the plan for development and operation (PDO) was approved in 2007. Skarv is a joint development of the Skarv, Idun, Ærfugl and Gråsel deposits. The development concept is a production, storage and offloading vessel (FPSO) with five subsea templates. The production started in 2013.
4704482
13.12.2023
21.04.2024
SKARV
Transport
The oil is offloaded to shuttle tankers, while the gas is transported to the Kårstø terminal in an 80-kilometre pipeline connected to the Åsgard Transport System (ÅTS).
4704482
28.02.2023
21.04.2024
SKARV
Status
The oil production from Skarv is declining, and gas injection is important for oil recovery. Gas blowdown has started in 2022 from parts of the reservoir and will continuously be evaluated. Work is ongoing to evaluate the potential of infill wells and prospects in the area.
4704482
13.12.2023
21.04.2024
SKARV
Reservoir
Skarv produces gas and oil from Lower and Middle Jurassic sandstone in the Tilje, Ile and Garn Formations. The Garn Formation has good reservoir quality, while the Tilje Formation has relatively poor quality. The reservoirs are divided into several fault segments and are at depths of 3300-3700 metres.
4704482
09.12.2023
21.04.2024
SKIRNE
Transport
The well stream from Skirne was transported in a pipeline to the Heimdal facility for processing. The gas was transported from Heimdal in the Vesterled pipeline to the St Fergus terminal in the UK. Gas was previously also sent through Statpipe to continental Europe. Condensate was transported to the Brae field in the UK sector and further via the Forties pipeline system to Cruden Bay in the UK.
2138816
16.08.2023
21.04.2024
SKIRNE
Reservoir
Skirne and Byggve produced gas and condensate from Middle Jurassic sandstone in the Brent Group. The Skirne reservoir is at a depth of 2370 metres and the Byggve reservoir at 2900 metres. The reservoir quality is good.
2138816
09.12.2023
21.04.2024
SKIRNE
Status
Skirne was shut down in June 2023, and decommissioning is ongoing.
2138816
19.08.2023
21.04.2024
SKIRNE
Development
Skirne, including the Byggve accumulation, is a field in the central part of the North Sea, 20 kilometres east of the Heimdal field. The water depth is 120 metres. Skirne was discovered in 1990, and the plan for development and operation (PDO) was approved in 2002. The field was developed with two subsea templates tied to the Heimdal facility. The production started in 2004. The Atla field was tied-back to Skirne in 2012.
2138816
09.12.2023
21.04.2024
SKIRNE
Recovery strategy
The field was produced by pressure depletion.
2138816
16.08.2023
21.04.2024
SKOGUL
Recovery strategy
Skogul is produced by depletion and natural aquifer support.
31164600
28.02.2023
21.04.2024
SKOGUL
Status
The production has been higher than anticipated, even though the oil production is steadily declining due to increasing water cut.
31164600
28.02.2023
21.04.2024
SKOGUL
Reservoir
The reservoir contains oil with a minor gas cap in Eocene sandstone of the Odin Formation. It is at a depth of 2100 metres and has excellent properties.
31164600
09.12.2023
21.04.2024
SKOGUL
Development
Skogul is a field in the central part of the North Sea, 30 kilometres northeast of the Alvheim field. The water depth is 110 metres. Skogul was discovered in 2010, and the plan for development and operation (PDO) was approved in 2018. The development concept is a 2-slot subsea template, including one dual-lateral production well, tied to the Alvheim production, storage and offloading vessel (FPSO) via the Vilje field. The production started in 2020.
31164600
13.12.2023
21.04.2024
SKOGUL
Transport
The well stream from Skogul is routed by pipeline via the Vilje field to the Alvheim FPSO.
31164600
28.02.2023
21.04.2024
SKULD
Reservoir
Skuld produces oil from sandstone of Early to Middle Jurassic age in the Åre, Tofte and Ile Formations. The field consists of the two deposits Fossekall and Dompap. The reservoirs have small gas caps and are at a depth of 2400-2600 metres. The reservoir quality is moderate to good.
21350124
14.12.2023
21.04.2024
SKULD
Status
Identification of new infill drilling targets and prevention of scale problems are the main focus areas for Skuld. The production has been shut-in since April 2023 and will resume in 2024 as soon as the heating system of the pipeline to the Norne FPSO is repaired.
21350124
14.12.2023
21.04.2024
SKULD
Recovery strategy
The field is produced with pressure support by water injection. Some of the wells are additionally supplied with gas lift to produce at low reservoir pressure and high water cut.
21350124
28.02.2023
21.04.2024
SKULD
Transport
The well stream is sent to the Norne FPSO. The oil is offloaded to shuttle tankers together with the oil from the Norne field. The gas is transported by pipeline from the Norne vessel to the Åsgard field, and further via the Åsgard Transport System (ÅTS) to the Kårstø terminal.
21350124
28.02.2023
21.04.2024
SKULD
Development
Skuld is a field in the Norwegian Sea, 20 kilometres north of the Norne field. The water depth is 340 metres. Skuld was discovered in 2008, and the plan for development and operation (PDO) was approved in 2012. The field is developed with three subsea templates tied-back to the Norne production, storage and offloading vessel (FPSO). The production started in 2013.
21350124
14.12.2023
21.04.2024
SLEIPNER VEST
Reservoir
Sleipner Vest produces gas and condensate mainly from Middle Jurassic sandstone in the Hugin Formation. Minor hydrocarbon volumes occur locally in the Sleipner Formation. The reservoir is at a depth of 3450 metres and is highly segmented. Faults in the field are generally not sealing and communication between the sand deposits is good.
43457
14.12.2023
21.04.2024
SLEIPNER VEST
Development
Sleipner Vest is a field in the central part of the North Sea, 12 km west of Sleipner Øst. The water depth is 110 metres. Sleipner Vest was discovered in 1974, and the plan for development and operation (PDO) was approved in 1992. The field is developed with two platforms: the normally unmanned wellhead platform Sleipner B, which is remotely operated from the Sleipner A facility on the Sleipner Øst field, and the gas treatment platform Sleipner T, connected by a bridge to Sleipner A. The production started in 1996.
43457
14.12.2023
21.04.2024
SLEIPNER VEST
Transport
The well stream is sent to the Sleipner A facility for processing. Sales gas is exported from Sleipner A via Gassled (Area D) to the market. Unstable condensate is transported in a pipeline to the Kårstø terminal.
43457
28.02.2023
21.04.2024
SLEIPNER VEST
Status
Sleipner Vest is in the middle of the tail production phase. Drilling targets are being evaluated for a drilling campaign in 2024/2025. To increase the production from the field, the inlet pressure at Sleipner T has been reduced and is planned to be reduced further in the coming years.
43457
14.12.2023
21.04.2024
SLEIPNER VEST
Recovery strategy
The field is produced by pressure depletion. CO2 is removed from the gas and injected for storage in the Utsira Formation.
43457
14.12.2023
21.04.2024
SLEIPNER ØST
Development
Sleipner Øst is a field in the central part of the North Sea. The water depth is 80 metres. Sleipner Øst was discovered in 1981, and the plan for development and operation (PDO) was approved in 1986. The field has been developed with Sleipner A, an integrated processing, drilling and accommodation facility with a concrete base structure. The development includes the Sleipner R riser facility, which connects Sleipner A to the pipelines for gas transport, and the Sleipner T facility for processing and CO2 removal. The production started in 1993. A PDO for Loke Heimdal was approved in 1991 and for Loke Triassic in 1995. Two subsea templates were installed, one for production from the northern part of Sleipner Øst and one for production from the Loke deposit. The Alpha Nord segment was developed in 2004 with a subsea template connected to Sleipner T. The Utgard field is tied-back to Sleipner T for processing and CO2 removal. The CO2 is injected into the Utsira Formation via a dedicated well at Sleipner A. The Sigyn, Gungne, Gudrun and Gina Krog fields are tied-back to Sleipner A.
43478
14.12.2023
21.04.2024
SLEIPNER ØST
Reservoir
Sleipner Øst produces gas and condensate. The Sleipner Øst and Loke reservoirs are in Paleocene turbidite sandstone in the Ty Formation, Middle Jurassic shallow marine sandstone in the Hugin Formation and in continental sandstone in the Triassic Skagerrak Formation. In addition, gas has been proven in the Heimdal Formation, overlying the Ty Formation. The Ty Formation has good reservoir quality, while the Skagerrak Formation generally has poorer reservoir quality than both Ty and Hugin Formations. The reservoirs are at a depth of 2300 metres.
43478
14.12.2023
21.04.2024
SLEIPNER ØST
Recovery strategy
The Hugin Formation reservoir is produced by pressure depletion. The reservoir in the Ty Formation was produced by dry gas recycling until 2005, and production from the Ty reservoir stopped in 2012. To optimise production, wells are produced at a reduced inlet pressure.
43478
28.02.2023
21.04.2024
SLEIPNER ØST
Transport
Sales gas is exported from the Sleipner A facility via Gassled (Area D) to market. Unstable condensate is transported to the Kårstø terminal by pipeline.
43478
28.02.2023
21.04.2024
SLEIPNER ØST
Status
Sleipner Øst is in the late tail production phase. The main focus is on increasing reserves and decreasing production decline. It is expected that Sleipner Øst continues operation for tied-back fields after cease of own production. From 2024, the facilities in the Sleipner area will be partly operated with power from shore.
43478
14.12.2023
21.04.2024
SNORRE
Recovery strategy
The field is produced with pressure support from water injection, gas injection and water alternating gas injection (WAG). From 2019, all gas is reinjected to increase oil recovery.
43718
28.02.2023
21.04.2024
SNORRE
Status
Several measures to increase oil recovery from Snorre are being considered. Possible third-party tie-ins may lead to further development of the field. Measures to further reduce emissions are also considered.
43718
14.12.2023
21.04.2024
SNORRE
Development
Snorre is a field in the Tampen area in the northern part of the North Sea. The water depth is 300-350 metres. Snorre was discovered in 1979, and the plan for development and operation (PDO) was approved in 1988. The field is developed with the facilities Snorre A, located in the southern part of the field, Snorre B in the northern part and two subsea systems tied-back to Snorre A (SPS and SEP). Snorre A is a floating tension-leg platform for accommodation, drilling and processing. There is also a separate process module on Snorre A for full stabilisation of the well stream from the Vigdis field. The production from Snorre A started in 1992. The subsea production system SPS was installed on the field in 1992. It consists of one template with 20 slots for production and injection wells. In 1998, a PDO was approved for Snorre B, a semi-submersible integrated drilling, processing and accommodation facility. Snorre B started production in 2001. An amended PDO for the Snorre Expansion Project (SEP) was approved in 2018. SEP consists of six subsea templates, each with four wells, and production from the first wells started in 2020. In 2020, an amended PDO for the development of the Hywind Tampen wind farm was approved. The wind farm consists of 11 floating turbines that started supplying electricity to the Snorre and Gullfaks platforms in 2022/2023. These fields are the first in the world receiving power from a floating wind farm.
43718
14.12.2023
21.04.2024
SNORRE
Transport
Oil and gas are separated at the Snorre A platform. The oil is stabilised at the Vigdis process module on Snorre A, then exported through the Vigdis pipeline to Gullfaks A. The oil is stored and loaded onto shuttle tankers at the Gullfaks field. All gas from Snorre and Vigdis is reinjected into the Snorre field. Fully processed oil from Snorre B is transported by pipeline to Statfjord B for storage and loading onto shuttle tankers.
43718
28.02.2023
21.04.2024
SNORRE
Reservoir
Snorre produces oil from Triassic and Lower Jurassic sandstone in the Alke and Lunde Formations and the Statfjord Group. The field consists of several large fault blocks. The reservoirs are at depths of 2000-2700 metres and have complex structures with both channels and flow barriers.
43718
14.12.2023
21.04.2024
SNØHVIT
Reservoir
Snøhvit produces gas with condensate from Lower and Middle Jurassic sandstone in the Nordmela and Stø Formations. The reservoirs are at a depth of 2300 metres and have moderate to good quality.
2053062
14.12.2023
21.04.2024
SNØHVIT
Transport
The well stream, with natural gas, CO2, natural gas liquids (NGL) and condensate, is transported in a 160-kilometre pipeline to the liquid natural gas (LNG) processing facility at Melkøya near Hammerfest. The CO2 is separated and returned to the field by pipeline for injection into the aquifer (Stø reservoir). LNG, liquid petroleum gas (LPG) and condensate are shipped to the market.
2053062
28.02.2023
21.04.2024
SNØHVIT
Recovery strategy
The field is produced by pressure depletion.
2053062
28.02.2023
21.04.2024
SNØHVIT
Development
Snøhvit is a field in the central part of the Hammerfest Basin in the southern part of the Barents Sea. The water depth is 310-340 metres. Snøhvit was discovered in 1984, and the plan for development and operation (PDO) was approved in 2002. Snøhvit was the first field development in the Barents Sea. The field includes the Snøhvit, Albatross and Askeladd structures and has been developed in multiple phases. The development includes several subsea templates. Two well slots are used for CO2 injection. The production started in 2007. A PDO exemption for Snøhvit North was granted in 2015. An amended PDO for onshore gas compression and full electrification was approved in 2023.
2053062
14.12.2023
21.04.2024
SNØHVIT
Status
The production from Snøhvit is in the plateau phase. Since production started, additional production wells have been drilled in different structures. Work is ongoing to prepare for onshore compression and electrification in order to significantly reduce CO2 emissions from the onshore facility at Melkøya.
2053062
14.12.2023
21.04.2024
SOLVEIG
Recovery strategy
The field is produced by pressure support from water injection.
34833011
28.02.2023
21.04.2024
SOLVEIG
Reservoir
Solveig produces oil from sandstone and conglomerate of Triassic and presumably Devonian age. The main reservoir was formed in small basins along the southwestern flank of the South Utsira High. The reservoir contains oil with a small gas cap at a depth of 1900 metres and has varying quality.
34833011
14.12.2023
21.04.2024
SOLVEIG
Transport
The well stream is transported via the Edvard Grieg field and onward by pipeline to the Sture terminal. The gas is exported via the Scottish Area Gas Evacuation (SAGE) infrastructure to the St Fergus terminal in the UK.
34833011
28.02.2023
21.04.2024
SOLVEIG
Status
Solveig Phase 2, which includes installation of two new subsea templates, is under development.
34833011
14.12.2023
21.04.2024
SOLVEIG
Development
Solveig is a field in the North Sea, 15 kilometres south of the Edvard Grieg field. The water depth is 100 metres. Solveig was discovered in 2013, and subsequently delineated by appraisal wells in 2014, 2015 and 2018. The plan for development and operation (PDO) was approved in 2019. Solveig was originally developed with five single wells, tied-back to the Edvard Grieg field. The production started in 2021. A PDO exemption for a Phase 2 development was granted in 2023.
34833011
14.12.2023
21.04.2024
STATFJORD
Recovery strategy
The field was originally produced by pressure support from water alternating gas injection (WAG), water injection and partially gas injection. Statfjord Late Life entails that all injection now has ceased. To release the solution gas from the remaining oil, depressurisation of the reservoirs started in 2007.
43658
28.02.2023
21.04.2024
STATFJORD
Development
Statfjord is a field in the Tampen area in the northern part of the North Sea, on the border between the Norwegian and UK sectors. The Norwegian share of the field is 85.47 per cent. The water depth is 150 metres. Statfjord was discovered in 1974, and the plan for development and operation (PDO) was approved in 1976. The field has been developed with three fully integrated concrete facilities: Statfjord A, Statfjord B and Statfjord C. Statfjord A, centrally located on the field, started production in 1979. Statfjord B, in the southern part of the field, in 1982, and Statfjord C, in the northern part, in 1985. The satellite fields Statfjord Øst, Statfjord Nord and Sygna have a dedicated inlet separator on Statfjord C. A PDO for Statfjord Late Life was approved in 2005.
43658
13.12.2023
21.04.2024
STATFJORD
Status
Work is ongoing to extend the lifetime of the field. Plans include prolonging the lifetime of the platforms and drilling of many new wells in the years to come. Satellite fields tied-back to Statfjord as well as nearby discoveries will benefit from the lifetime extension.
43658
28.02.2023
21.04.2024
STATFJORD
Reservoir
Statfjord produces oil and associated gas from Jurassic sandstone in the Brent and Statfjord Groups, and in the Cook Formation. The Brent and Statfjord Groups have excellent reservoir quality. The reservoirs are at depths of 2500-3000 metres in a large fault block tilted towards the west, and in several smaller blocks along the eastern flank.
43658
09.12.2023
21.04.2024
STATFJORD
Transport
Stabilised oil is stored in storage cells at each facility. Oil is loaded onto tankers from one of the two oil-loading systems on the field. Since 2007, gas is exported through Tampen Link, and routed via the Far North Liquids and Gas System (FLAGS) pipeline to the UK. The UK licensees route their share of the gas through the FLAGS pipeline from Statfjord B to St Fergus in the UK.
43658
28.02.2023
21.04.2024
STATFJORD NORD
Development
Statfjord Nord is a field in the Tampen area in the northern part of the North Sea, 17 kilometres north of the Statfjord field. The water depth is 250-290 metres. Statfjord Nord was discovered in 1977, and the plan for development and operation (PDO) was approved in 1990. The field has been developed with two production templates and one water injection template tied-back to the Statfjord C facility. The production started in 1995.
43679
14.12.2023
21.04.2024
STATFJORD NORD
Reservoir
Statfjord Nord produces oil from Middle Jurassic sandstone in the Brent Group and Upper Jurassic sandstone in the Munin Formation. The reservoirs are at a depth of 2600 metres and are of good quality.
43679
14.12.2023
21.04.2024
STATFJORD NORD
Recovery strategy
The field is produced with pressure maintenance from water injection.
43679
28.02.2023
21.04.2024
STATFJORD NORD
Transport
The well stream is transported in two pipelines to the Statfjord C facility for processing, storage and export. The fields Statfjord Nord, Statfjord Øst and Sygna have a shared process module on Statfjord C. Oil is loaded onto tankers and gas is exported through Tampen Link and the Far North Liquids and Gas System (FLAGS) pipeline to the UK.
43679
28.02.2023
21.04.2024
STATFJORD NORD
Status
The lifetime extension of the Statfjord C facility opens for additional wells for the field. One new well was drilled in 2022 and another is planned for 2024.
43679
14.12.2023
21.04.2024
STATFJORD ØST
Transport
The well stream is transported in two pipelines to the Statfjord C facility for processing, storage and export. Statfjord Øst, Statfjord Nord and Sygna have a shared process module on Statfjord C. Oil is loaded onto tankers and gas is exported through Tampen Link and the Far North Liquids and Gas System (FLAGS) pipeline to the UK.
43672
28.02.2023
21.04.2024
STATFJORD ØST
Recovery strategy
The field was originally produced with water injection but is now produced by pressure depletion.
43672
28.02.2023
21.04.2024
STATFJORD ØST
Development
Statfjord Øst is a field in the Tampen area in the North Sea, seven kilometres northeast of the Statfjord field. The water depth is 150-190 metres. Statfjord Øst was discovered in 1976, and the plan for development and operation (PDO) was approved in 1990. The field has been developed with two subsea production templates and one water injection template, tied-back to the Statfjord C platform. In addition, two production wells have been drilled from Statfjord C. The production started in 1994.
43672
14.12.2023
21.04.2024
STATFJORD ØST
Status
The field is affected by pressure depletion due to depressurisation of the Statfjord field. The lifetime extension of the Statfjord C facility opens for additional opportunities for the field. The main planned activity for Statfjord Øst is related to the gas lift project, which includes providing a gas lift solution for both subsea production templates and drilling of five new wells capable of producing with gas lift. The first well came on stream in August 2023.
43672
14.12.2023
21.04.2024
STATFJORD ØST
Reservoir
Statfjord Øst produces oil from Middle Jurassic sandstone in the Brent Group. The reservoir is at a depth of 2400 metres and has good quality.
43672
14.12.2023
21.04.2024
SVALIN
Development
Svalin is a field in the central part of the North Sea, six kilometres southwest of the Grane field. The water depth is 120 metres. Svalin was discovered in 1992, and the plan for development and operation (PDO) was approved in 2012. The field comprises two separate structures: Svalin C and Svalin M. Svalin C is developed with a subsea template tied-in to the Grane facility, and Svalin M is developed with a multilateral well drilled from Grane. The production started in 2014.
22507971
14.12.2023
21.04.2024
SVALIN
Recovery strategy
The field is produced by pressure depletion and with pressure support from a regional aquifer.
22507971
28.02.2023
21.04.2024
SVALIN
Transport
The well stream is processed on the Grane field. The oil is transported by pipeline to the Sture terminal for storage and export, and the gas is injected into the Grane reservoir or used for fuel at the Grane platform.
22507971
28.02.2023
21.04.2024
SVALIN
Reservoir
Svalin produces oil and associated gas from massive sandstone of Paleocene to early Eocene age in the Heimdal and Balder Formations. The reservoirs are in marine fan deposits and have excellent quality. They are at a depth of 1750 metres.
22507971
14.12.2023
21.04.2024
SVALIN
Status
The production has been lower than anticipated in the PDO and is declining due to increasing water cut. Plans for further development of the field include possible infill wells and exploration activities.
22507971
14.12.2023
21.04.2024
SYGNA
Status
The production from Sygna is stable, and the strategy is to keep the reservoir pressure constant by water injection.
104718
13.12.2023
21.04.2024
SYGNA
Recovery strategy
The field is produced by pressure maintenance from water injection.
104718
28.02.2023
21.04.2024
SYGNA
Development
Sygna is a field in the Tampen area in the northern North Sea, just northeast of the Statfjord Nord field. The water depth is 300 metres. Sygna was discovered in 1996, and the plan for development and operation (PDO) was approved in 1999. The field has been developed with one subsea template with four well slots, connected to the Statfjord C facility. Three production wells have been drilled from the template. A long-reach water injection well was drilled from the Statfjord Nord template. The production started in 2000.
104718
13.12.2023
21.04.2024
SYGNA
Transport
The well stream is transported by pipeline to the Statfjord C facility for processing, storage and export. Sygna, Statfjord Nord og Statfjord Øst have a shared process module on Statfjord C. The oil is loaded onto tankers and the gas is exported through Tampen Link and the Far North Liquids and Gas System (FLAGS) pipeline to the UK.
104718
28.02.2023
21.04.2024
SYGNA
Reservoir
Sygna produces oil from Middle Jurassic sandstone in the Brent Group. The reservoir is at a depth of 2650 metres and has good quality.
104718
09.12.2023
21.04.2024
SYMRA
Transport
The well stream will be routed by pipeline via Ivar Aasen to the Edvard Grieg facility for final processing and further transport.
42002480
12.08.2023
21.04.2024
SYMRA
Status
The field is under development, and the production is planned to start in 2027.
42002480
12.08.2023
21.04.2024
SYMRA
Reservoir
The reservoirs contain oil in the Zechstein Group of Permian age and in the underlying basement rocks. In addition, oil was proven in intra-Heather sandstone of Middle Jurassic age. The reservoirs are at a depth of 1800 metres and have varying properties.
42002480
09.12.2023
21.04.2024
SYMRA
Development
Symra is a field in the central North Sea, five kilometres northeast of the Ivar Aasen field. The field consists of several segments. The water depth is 110 metres. Symra was discovered in 2018, and the plan for development and operation (PDO) was approved in June 2023. The development concept includes a subsea template with four wells tied-back to the Ivar Aasen platform.
42002480
18.01.2024
21.04.2024
SYMRA
Recovery strategy
The field will be produced by pressure depletion. Pressure support by water injection will also be considered.
42002480
12.08.2023
21.04.2024
TAMBAR
Development
Tambar is a field in the southern part of the Norwegian sector in the North Sea, 16 kilometres southeast of the Ula field. The water depth is 70 metres. Tambar was discovered in 1983, and the plan for development and operation (PDO) was approved in 2000. The field has been developed with a remotely controlled wellhead platform tied-back to the Ula field. The production started in 2001.
1028599
13.12.2023
21.04.2024
TAMBAR
Status
The production is declining due to decreased reservoir pressure and increasing water cut.
1028599
09.12.2023
21.04.2024
TAMBAR
Recovery strategy
The field is produced by pressure depletion, with natural gas expansion combined with aquifer support. Gas lift is used to improve production performance.
1028599
28.02.2023
21.04.2024
TAMBAR
Reservoir
Tambar produces oil from Upper Jurassic shallow marine sandstone in the Ula Formation. The reservoir is at a depth of 4100-4200 metres and has generally very good quality.
1028599
09.12.2023
21.04.2024
TAMBAR
Transport
The oil is transported by pipeline to Ula. After processing at Ula, the oil is exported in the pipeline system via the Ekofisk field to Teesside in the UK, while the gas is injected into the Ula reservoir to improve oil recovery.
1028599
28.02.2023
21.04.2024
TAMBAR ØST
Status
The production from Tambar Øst had been shut-in temporarily since 2019 for pressure build-up, and was restarted in October 2023.
4999528
14.12.2023
21.04.2024
TAMBAR ØST
Transport
The oil is transported from the Tambar field to the Ula facility. After processing at Ula, the oil is exported in the existing pipeline system via the Ekofisk field to Teesside in the UK. The gas is used for gas injection in the Ula reservoir to improve oil recovery.
4999528
28.02.2023
21.04.2024
TAMBAR ØST
Development
Tambar Øst is a field in the southern part of the Norwegian sector in the North Sea, two kilometres east of the Tambar field. The water depth is 70 metres. Tambar Øst was discovered in 2007. In the same year, an exemption for a plan for development and operation (PDO) was granted and the field started production. The field has been developed with one production well drilled from the Tambar facility.
4999528
14.12.2023
21.04.2024
TAMBAR ØST
Recovery strategy
The field is produced by pressure depletion and limited aquifer drive.
4999528
28.02.2023
21.04.2024
TAMBAR ØST
Reservoir
Tambar Øst produces oil and some gas from shallow marine sandstone of Late Jurassic age in the Farsund Formation. The reservoir is at a depth of 4050-4200 metres and has varying quality.
4999528
14.12.2023
21.04.2024
TOMMELITEN A
Development
Tommeliten A is a field in the southern part of the Norwegian sector in the North Sea, 25 kilometres southwest of the Ekofisk field. The field is located on the border to the UK sector and the Norwegian share of the field is 99.57 per cent. The water depth is 75 metres. Tommeliten A was proven in 1977 and the plan for development and operation (PDO) was approved in 2022. The field is developed with two subsea templates tied-back to the Ekofisk Complex.
40867462
13.12.2023
21.04.2024
TOMMELITEN A
Recovery strategy
The field is being produced by pressure depletion.
40867462
21.10.2023
21.04.2024
TOMMELITEN A
Reservoir
The reservoir contains gas condensate and volatile oil in chalk in the Paleocene Ekofisk Formation and the Upper Cretaceous Tor Formation at a depth of about 3000 metres. The reservoir quality varies across both formations and is affected by faults and fractures.
40867462
09.12.2023
21.04.2024
TOMMELITEN A
Status
The field started production in October 2023.
40867462
21.10.2023
21.04.2024
TOMMELITEN A
Transport
The well stream is transported to Ekofisk Centre by pipelines. Oil and gas are routed to export pipelines via the processing facility at Ekofisk to Teesside in the UK and to Emden in Germany.
40867462
21.10.2023
21.04.2024
TOMMELITEN GAMMA
Development
Tommeliten Gamma is a field in the southern part of the Norwegian sector in the North Sea, 12 kilometres west of the Edda field in the Ekofisk area. The water depth is 75 metres. Tommeliten Gamma was discovered in 1978, and the plan for development and operation (PDO) was approved in 1986. The field was developed with a subsea template including six production wells. The production started in 1988.
43444
09.12.2023
21.04.2024
TOMMELITEN GAMMA
Reservoir
Tommeliten Gamma produced gas and condensate from fractured chalk of Late Cretaceous age in the Tor Formation and of early Paleocene age in the Ekofisk Formation. The reservoir is at a depth of 3500 metres.
43444
09.12.2023
21.04.2024
TOMMELITEN GAMMA
Status
Tommeliten Gamma was shut down in 1998, and the subsea template was removed in 2001. The field is currently being evaluated for redevelopment in combination with other decommissioned fields in the area.
43444
09.12.2023
21.04.2024
TOMMELITEN GAMMA
Transport
The well stream was sent via pipeline to the Edda field for first-stage separation, then to the Ekofisk Complex and further through Norpipe to Emden in Germany and Teesside in the UK. Some of the gas was used for gas lift on the Edda field.
43444
28.02.2023
21.04.2024
TOMMELITEN GAMMA
Recovery strategy
The field was produced by pressure depletion.
43444
28.02.2023
21.04.2024
TOR
Reservoir
The reservoir contains oil and gas in fractured chalk of Late Cretaceous age in the Tor Formation and of early Paleocene age in the Ekofisk Formation. There are significant remaining resources in both formations. The reservoir depth is 3200 metres.
43520
14.12.2023
21.04.2024
TOR
Development
Tor is a field in the southern part of the Norwegian sector in the North Sea, 13 kilometres northeast of the Ekofisk field. The water depth is 70 metres. Tor was discovered in 1970, and the plan for development and operation (PDO) was approved in 1973. The field started production in 1978 and was shut down in 2015. A new PDO for the redevelopment of Tor was approved in 2019. The development includes two subsea templates with eight horizontal production wells, tied-back to the Ekofisk Centre. The production started again in 2020.
43520
14.12.2023
21.04.2024
TOR
Recovery strategy
The field is produced by natural pressure depletion.
43520
28.02.2023
21.04.2024
TOR
Transport
The well stream is transported by pipeline to the processing facility at the Ekofisk Centre and further to Teesside in the UK and Emden in Germany.
43520
28.02.2023
21.04.2024
TOR
Status
Several well interventions have been conducted in 2022/2023 to maintain and improve well performance. The original facility will be removed by the end of 2024.
43520
14.12.2023
21.04.2024
TORDIS
Transport
The well stream from Tordis is transported via two pipelines to the Gullfaks C facility for processing. The oil is exported by tankers, while the gas is exported via Gassled A to the Kårstø terminal.
43725
14.12.2023
21.04.2024
TORDIS
Reservoir
Tordis produces oil from Jurassic sandstone. The reservoirs in Tordis are in the Middle Jurassic Brent Group and the Lower Jurassic Statfjord Group. The structures Tordis Øst and Sørøst also include reworked Brent Group sediments in the Upper Jurassic Draupne Formation. The Borg reservoir is in Upper Jurassic intra-Draupne Formation sandstone, and the reservoir in Tordis Statfjord is in the Lower Jurassic Statfjord Group. The reservoirs are at depths of 2000-2500 metres and the reservoir quality is good to excellent.
43725
14.12.2023
21.04.2024
TORDIS
Status
The production from Tordis is maintained through pressure support and well interventions. The production has increased in 2023 due to better production from new wells and increased production efficiency. 4D seismic acquired in 2021 is being used for reservoir management and to identify further infill drilling targets. Drilling of a new production well is being planned.
43725
14.12.2023
21.04.2024
TORDIS
Development
Tordis is a field in the Tampen area in the northern part of the North Sea, between the Statfjord and Gullfaks fields. The water depth is 150-220 metres. Tordis was discovered in 1987, and the plan for development and operation (PDO) was approved in 1991. The field has been developed with a central subsea manifold tied-back to the Gullfaks C facility, which also supplies water for injection. Seven single-well satellites and two 4-slots subsea templates are tied-back to the manifold. The production started in 1994. Tordis comprises three structures: Tordis, Borg and Tordis Statfjord. The Tordis structure includes several substructures. The PDO for Tordis Øst was approved in 1995 and for Borg in 1999. An amended PDO for a Tordis IOR subsea separation facility was approved in 2005.
43725
14.12.2023
21.04.2024
TORDIS
Recovery strategy
The field is produced by pressure support from water injection and by natural aquifer drive.
43725
28.02.2023
21.04.2024
TRESTAKK
Recovery strategy
The Field is produced by gas injection.
29396445
28.02.2023
21.04.2024
TRESTAKK
Status
The production from the field has been lower than anticipated due to poorer reservoir properties than predicted and lower gas injection volumes. Starting in mid-2023, an updated gas injection strategy has been implemented, resulting in stabilised production rates. New infill targets are being evaluated.
29396445
14.12.2023
21.04.2024
TRESTAKK
Transport
The well stream is transported to the Åsgard A facility for processing. Oil and condensate are temporarily stored at Åsgard A, and then shipped to market by shuttle tankers. The gas is exported through the Åsgard Transport System (ÅTS) to the Kårstø terminal.
29396445
28.02.2023
21.04.2024
TRESTAKK
Development
Trestakk is a field in the central part of the Norwegian Sea, 20 kilometres south of the Åsgard field. The water depth is 300 metres. Trestakk was proven in 1986 and the plan for development and operation (PDO) was approved in 2017. The development concept consists of one subsea template with four well slots and an additional satellite well. The subsea installation is tied-back to the Åsgard A facility for processing and gas injection. The production started in 2019.
29396445
14.12.2023
21.04.2024
TRESTAKK
Reservoir
Trestakk produces oil from shallow marine sandstone of Middle Jurassic age in the Garn Formation. The reservoir is at a depth of 3900 metres and has moderate quality.
29396445
14.12.2023
21.04.2024
TROLL
Recovery strategy
The gas in Troll Øst is recovered by pressure depletion through 39 wells drilled from Troll A. The oil in Troll Vest is produced from long horizontal wells, which penetrate the thin oil zone directly above the oil-water contact. The recovery strategy is based primarily on pressure depletion, but this is accompanied by a simultaneous expansion of both the gas cap above the oil zone and the underlying water zone. Some gas is also reinjected. Produced water was reinjected into the northern part of the Troll Vest oil province from 2000 to 2016.
46437
28.02.2023
21.04.2024
TROLL
Transport
The gas from Troll Øst and Troll Vest is transported through three multiphase pipelines to the gas processing plant at Kollsnes. The condensate is separated from the gas and transported by pipeline to the Mongstad terminal. The dry gas is transported in Zeepipe II A and II B to Zeebrugge in Belgium. The oil from Troll B and Troll C is transported in the Troll Oil Pipelines I and II, respectively, to the oil terminal at Mongstad.
46437
28.02.2023
21.04.2024
TROLL
Status
More than two million reservoir metres have been drilled on Troll. Drilling of new oil production wells on Troll concluded altogether in 2023; however, the need for future oil wells will be considered regularly. A new gas compressor module on the Troll C platform started in 2020 to increase gas production and processing capacity. The production from the first stage of the Troll Phase III development started in 2021. The development includes eight new gas production wells on Troll Vest and a flowline to the Troll A facility.
46437
14.12.2023
21.04.2024
TROLL
Reservoir
Troll contains very large amounts of gas resources and is also one of the largest oil producing fields on the Norwegian continental shelf. The field has two main structures: Troll Øst and Troll Vest. About two-thirds of the recoverable gas reserves lie in Troll Øst. The gas and oil reservoirs in the Troll Øst and Troll Vest structures consist primarily of shallow marine sandstone of Late Jurassic age in the Sognefjord Formation. Part of the reservoir is also in the underlying Fensfjord Formation of Middle Jurassic age. The field consists of three relatively large, rotated fault blocks. The eastern fault block constitutes Troll Øst. The reservoir depth at Troll Øst is 1330 metres. Pressure communication between Troll Øst and Troll Vest has been proven. Originally, the oil column in Troll Øst was mapped to be 0-4 metres thick. A well drilled in 2007 proved an oil column of 6-9 metres in the Fensfjord Formation in the northern segment of Troll Øst. The Troll Vest oil province originally had a 22 to 26-metre-thick oil column under a small gas cap, located at a depth of 1360 metres. The Troll Vest gas province originally had an oil column of 12-14 metres under a gas column of up to 200 metres. The oil column is now reduced to a thickness of only 1 to 5 metres. A significant volume of residual oil is encountered directly below the Troll Vest oil column.
46437
14.12.2023
21.04.2024
TROLL
Development
Troll is a field in the northern part of the North Sea. The water depth is 300-330 metres. Troll was discovered in 1979, and the initial plan for development and operation (PDO) was approved in 1986. The plan was updated in 1990 and involved the transfer of gas processing to the Kollsnes terminal. The production started in 1995. A phased development was pursued for the Troll field, with Phase I recovering gas reserves in Troll Øst and Phase II focusing on the oil reserves in Troll Vest. Troll Phase I has been developed with Troll A, which is a fixed wellhead and compression platform with a concrete substructure. Troll A receives power from shore. The gas compression capacity at Troll A was increased in 2004/2005, and again in 2015. Troll Phase II was developed with Troll B, a floating concrete accommodation and production platform, and Troll C, a semi-submersible accommodation and production steel platform. The oil is produced from several subsea templates tied-back to Troll B and Troll C by flowlines. The production from Troll C started in 1999. The Troll C platform is also utilised for production from the Fram field. Several PDO amendments were approved in connection with various subsea templates at Troll Vest. A PDO for Troll Phase III (gas production from Troll Vest) was approved in 2018 and the production started in August 2021. An amended PDO for power from shore to Troll Vest was approved in 2021.
46437
14.12.2023
21.04.2024
TROLL BRENT B
Development
Troll Brent B is a field near the Troll field in the northern part of the North Sea. The water depth is 340 metres. Troll Brent B was discovered in 2005, and was granted an exemption from the plan for development and operation (PDO) in 2017. Troll Brent B was planned to be developed with one multilateral production well drilled from the O-template connected to Troll C.
29398828
28.02.2023
21.04.2024
TROLL BRENT B
Status
During drilling of the production well, oil reserves were proven to be significantly lower than originally assumed. It was therefore decided to be uneconomical to start production on the Troll Brent B field. The well was plugged, however, the well slot is available to be used for potential new targets on Troll Vest.
29398828
09.12.2023
21.04.2024
TROLL BRENT B
Reservoir
The reservoir contains oil in sandstone of Middle Jurassic age in the Brent Group, stratigraphically underlying producing reservoirs on the Troll field. The reservoir is at a depth of 1900 metres.
29398828
09.12.2023
21.04.2024
TROLL BRENT B
Transport
There was no production from Troll Brent B.
29398828
28.02.2023
21.04.2024
TROLL BRENT B
Recovery strategy
The field was planned to be produced by pressure depletion.
29398828
28.02.2023
21.04.2024
TRYM
Development
Trym is a field in the southern part of the Norwegian sector in the North Sea, three kilometres from the border to the Danish sector. The water depth is 65 metres. Trym was discovered in 1990, and the plan for development and operation (PDO) was approved in 2010. The field is developed with a subsea template including two horizontal production wells, tied to the Harald facility in the Danish sector. The production started in 2011.
18081500
13.12.2023
21.04.2024
TRYM
Reservoir
Trym produces gas and condensate from Middle Jurassic sandstone of the Sandnes Formation. The reservoir is at a depth of 3400 metres and has good quality.
18081500
09.12.2023
21.04.2024
TRYM
Recovery strategy
The field is produced by pressure depletion. A low-pressure project was started in 2017 and is expected to accelerate production, thus increasing final recovery.
18081500
28.02.2023
21.04.2024
TRYM
Transport
The well stream is processed on the Harald facility for further transport through the Danish pipeline system via the Tyra field.
18081500
28.02.2023
21.04.2024
TRYM
Status
The production from Trym has been temporarily shut-in since September 2019, due to a major redevelopment project on the Tyra field in the Danish sector. Trym production is expected to restart in 2024, once the Tyra project is completed.
18081500
28.02.2023
21.04.2024
TUNE
Development
Tune is a field in the northern part of the North Sea, ten kilometres west of the Oseberg field. The water depth is 95 metres. Tune was discovered in 1995, and the plan for development and operation (PDO) was approved in 1999. The field has been developed with a subsea template and a satellite well tied to the Oseberg Field Centre. Production started in 2002. A PDO exemption was granted for the development of the northern part of the field in 2004. A similar exemption was granted for the southern part of the field in 2005.
853376
28.02.2023
21.04.2024
TUNE
Recovery strategy
The field is produced by pressure depletion. Low-pressure production has been implemented.
853376
28.02.2023
21.04.2024
TUNE
Transport
The well stream from Tune is transported in pipelines to the Oseberg Field Centre, where the condensate is separated and transported to the Sture terminal through the Oseberg Transport System (OTS). Gas from Tune is injected in the Oseberg field, while the licensees can export a corresponding volume of sales gas from Oseberg.
853376
28.02.2023
21.04.2024
TUNE
Status
The Tune field is in its tail production phase and produces cyclically. The main challenges for Tune are old infrastructure and low reservoir pressure. There has been no production since mid-2022 due to well integrity issues.
853376
14.12.2023
21.04.2024
TUNE
Reservoir
Tune produces gas and some condensate mainly from Middle Jurassic sandstone in the Tarbert Formation (Brent Group). The reservoir is at a depth of 3400 metres and divided into several inclined fault blocks . Another reservoir is in the underlying Statfjord Formation.
853376
14.12.2023
21.04.2024
TYRIHANS
Transport
The well stream is sent to the Kristin platform for processing. Gas is exported from Kristin via the Åsgard Transport System (ÅTS) to the Kårstø terminal, while oil and condensate are transported by pipeline to the storage ship Åsgard C for export on shuttle tankers.
3960848
28.02.2023
21.04.2024
TYRIHANS
Status
Work is ongoing to optimise gas production by converting gas injection wells and oil producers to gas production wells. At the same time, new wells are being evaluated to further develop oil production from the Ile Formation.
3960848
14.12.2023
21.04.2024
TYRIHANS
Recovery strategy
Tyrihans has earlier been produced with pressure support by water and gas injection. The main recovery strategy now is pressure depletion and gas cap expansion.
3960848
28.02.2023
21.04.2024
TYRIHANS
Reservoir
Tyrihans produces oil and gas from two deposits: Tyrihans South and Tyrihans North. Tyrihans South has an oil column with a condensate-rich gas cap. Tyrihans North contains gas and condensate with a thin oil zone. The main reservoir in both deposits is in the Middle Jurassic Garn Formation at a depth of 3500 metres. The reservoirs are homogenous and of good quality. Oil is also produced from reservoirs in the Middle Jurassic Ile Formation.
3960848
14.12.2023
21.04.2024
TYRIHANS
Development
Tyrihans is a field in the Norwegian Sea, 25 kilometres southeast of the Åsgard field. The water depth is 270 metres. Tyrihans was discovered in 1983, and the plan for development and operation (PDO) was approved in 2006. The field is developed with five subsea templates tied-back to the Kristin platform, four templates for production and gas injection and one template for seawater injection. Gas for injection and gas lift is supplied from the Åsgard B platform. The production started in 2009.
3960848
14.12.2023
21.04.2024
TYRVING
Reservoir
The reservoirs contain oil in sandstone of Paleocene age in the Heimdal Formation, at depths of 2140 and 2180 metres. The reservoir properties are excellent.
42002471
09.12.2023
21.04.2024
TYRVING
Recovery strategy
The drainage strategy is pressure depletion with aquifer support.
42002471
09.06.2023
21.04.2024
TYRVING
Development
Tyrving is a field in the central North Sea, 20 kilometres east of the Alvheim field. Tyrving consists of two discoveries, Trine and Trell, five kilometres apart. The water depth is 120 metres. The discoveries will be developed together, and the plan for development and operation (PDO) was approved in June 2023. The development concept includes two multilateral wells, one in each discovery, tied-back to the Alvheim FPSO.
42002471
18.01.2024
21.04.2024
TYRVING
Transport
The well stream will be routed by pipeline to the Alvheim FPSO, where the oil is offloaded to shuttle tankers. The gas will be transported by pipeline from Alvheim to the Scottish Area Gas Evacuation (SAGE) pipeline in the UK sector.
42002471
09.12.2023
21.04.2024
TYRVING
Status
The field is under development, and production is planned to start in 2025. If profitable resources are proven in the Trell North prospect, there could be a third well.
42002471
13.06.2023
21.04.2024
ULA
Recovery strategy
Oil was initially recovered by pressure depletion, but after some years water injection was implemented to improve recovery. Water alternating gas injection (WAG) started in 1998. The WAG program has been extended with gas from the tied-in Tambar, Blane and Oda fields. Gas lift is used in some of the wells.
43800
28.02.2023
21.04.2024
ULA
Reservoir
Ula produces oil mainly from sandstone in the Upper Jurassic Ula Formation. The reservoir is at a depth of 3345 metres and consists of three units. There is also production from part of the underlying Triassic reservoir at a depth of 3450 metres. This is a tight sandstone reservoir with low effective permeability.
43800
09.12.2023
21.04.2024
ULA
Transport
The oil is transported by pipeline via the Ekofisk field to Teesside in the UK. All gas is reinjected into the reservoir to increase oil recovery.
43800
28.02.2023
21.04.2024
ULA
Status
The current estimated reserves on Ula are more than three times higher than the original PDO estimates. All oil production from Ula is dependent on Enhanced Oil Recovery (EOR) measures. The positive effect of WAG injection resulted in the drilling of more WAG wells. Gas supply for WAG is currently challenging and production is declining.
43800
28.02.2023
21.04.2024
ULA
Development
Ula is a field in the southern part of the Norwegian sector in the North Sea. The water depth is 70 metres. Ula was discovered in 1976, and the plan for development and operation (PDO) was approved in 1980. The development consists of three facilities for production, drilling and accommodation, which are connected by bridges. The production started in 1986. The gas capacity at Ula was upgraded in 2008 with a new gas processing and gas injection module (UGU) that doubled the capacity. A PDO exemption for the Triassic reservoir was granted in 2015. Ula is the processing facility for the Tambar, Blane and Oda fields.
43800
13.12.2023
21.04.2024
URD
Recovery strategy
The field is produced by water injection and gas lift.
2834734
28.02.2023
21.04.2024
URD
Transport
The well stream is processed on the Norne FPSO, and the oil is offloaded to shuttle tankers together with oil from the Norne field. The gas is sent from Norne to Åsgard, and then exported via the Åsgard Transport System (ÅTS) to the Kårstø terminal.
2834734
28.02.2023
21.04.2024
URD
Development
Urd is a field in the Norwegian Sea, five kilometres northeast of the Norne field. The water depth is 380 metres. Urd was discovered in 2000, and the plan for development and operation (PDO) was approved in 2004. The field has three deposits: Svale, Svale North and Stær. The Urd field has been developed with subsea templates tied-back to the Norne production, storage and offloading vessel (FPSO). The production started in 2005 from Svale, from Stær in 2006 and from Svale North in 2016.
2834734
14.12.2023
21.04.2024
URD
Reservoir
Urd produces oil from Lower to Middle Jurassic sandstone in the Åre, Tilje and Ile Formations. The field is structurally complex and segmented. The reservoirs are at depths of 1800-2300 metres and have moderate to good quality.
2834734
14.12.2023
21.04.2024
URD
Status
Challenges for Urd are poor pressure support, increasing water cut, problems with the well stream (slugging and sand production) and failure of subsea/well equipment. A sidetrack of an existing producer was drilled in 2023.
2834734
14.12.2023
21.04.2024
UTGARD
Transport
The well stream from the Utgard field is processed at the Sleipner T facility. The sales gas is exported via Gassled (Area D). The unstable oil is transported by pipeline via Sleipner A to the Kårstø terminal for further processing and export.
28975098
28.02.2023
21.04.2024
UTGARD
Status
The production has been on decline due to early water breakthrough. Currently, only the well in the eastern segment is producing while the well in the western segment is watered out. It is planned to sidetrack both wells in 2023/2024 to increase recovery from the field.
28975098
14.12.2023
21.04.2024
UTGARD
Recovery strategy
Utgard is produced by pressure depletion.
28975098
28.02.2023
21.04.2024
UTGARD
Reservoir
Utgard produces gas with high CO2 content and some condensate mainly from sandstone of Middle Jurassic age in the Hugin Formation. Minor hydrocarbon volumes occur in the Sleipner Formation. The field consists of two main segments (west and east) which are in pressure communication via the aquifer. The main reservoirs are at a depth of 3700 metres.
28975098
14.12.2023
21.04.2024
UTGARD
Development
Utgard is a field in the central part of the Norwegian sector in the North Sea, straddling the boundary between Norway and the UK. The Norwegian share of the field is 62 per cent. Utgard is located 20 kilometres west of the Sleipner area. The water depth is 110-120 metres. The field was discovered in 1982 and the plan for development and operation (PDO) was approved in 2017. The development concept is a 4-slot subsea template with two wells tied-back to the Sleipner T facility for processing and reduction of the CO2 level in the gas. The subsea template is located in the Norwegian sector. The production started in 2019.
28975098
14.12.2023
21.04.2024
VALE
Transport
The well stream from Vale was routed to Heimdal for processing and export. Gas was exported via Vesterled to St Fergus in the UK. Condensate was transported by pipeline to the Brae field in the UK sector and further to Cruden Bay.
1578893
29.09.2023
21.04.2024
VALE
Reservoir
Vale produced gas and condensate from Middle Jurassic sandstone in the Brent Group. The reservoir is at a depth of 3700 metres and has low permeability.
1578893
09.12.2023
21.04.2024
VALE
Development
Vale is a field in the central part of the North Sea, 16 kilometres north of the Heimdal field. The water depth is 115 metres. Vale was discovered in 1991, and the plan for development and operation (PDO) was approved in 2001. The field was developed with a subsea template including one horizontal production well with a single side track, tied-back to the Heimdal facility. The production started in 2002.
1578893
09.12.2023
21.04.2024
VALE
Status
Vale was shut down in September 2023. Decommissioning of the subsea template must be completed by the end of 2028.
1578893
09.12.2023
21.04.2024
VALE
Recovery strategy
The field was produced by pressure depletion.
1578893
29.09.2023
21.04.2024
VALEMON
Recovery strategy
The field is produced by pressure depletion.
20460969
28.02.2023
21.04.2024
VALEMON
Reservoir
Valemon produces gas and condensate from Lower Jurassic sandstone in the Cook Formation and Middle Jurassic sandstone in the Brent Group. The deposit has a complex structure with many fault blocks. The reservoirs are at depths of 3900-4200 metres and have high temperature and high pressure (HTHP).
20460969
14.12.2023
21.04.2024
VALEMON
Development
Valemon is a field in the northern part of the North Sea, just west of the Kvitebjørn field. The water depth is 135 metres. Valemon was discovered in 1985, and the plan for development and operation (PDO) was approved in 2011. The field is developed with a fixed production platform with a simplified separation process design. The platform is remotely controlled from an operations centre onshore. The production started in 2015.
20460969
14.12.2023
21.04.2024
VALEMON
Transport
The wellstream is transported to Kvitebjørn for processing. Rich gas is transported through the Kvitebjørn Gas Pipeline to the Kollsnes terminal, while condensate is transported in a pipeline tied to the Troll Oil Pipeline II and further to the Mongstad terminal. Until mid-2023, the gas was exported to Heimdal.
20460969
14.12.2023
21.04.2024
VALEMON
Status
Due to production experience and rapid pressure decline in the reservoirs, the estimated recoverable volumes have been significantly reduced since the PDO. The second drilling campaign including four new production wells started in 2021, and the last of the wells came on stream in mid-2023. The production contribution from the new wells is below expectations. After closing of the Heimdal facility in 2023, permanent rerouting of the Valemon gas export via Kvitebjørn to the Kollsnes terminal was initiated.
20460969
14.12.2023
21.04.2024
VALHALL
Development
Valhall is a field in the southern part of the Norwegian sector in the North Sea. The water depth is 70 metres. Valhall was discovered in 1975, and the initial plan for development and operation (PDO) was approved in 1977. The field was originally developed with three facilities for accommodation (QP), drilling (DP), and processing and compression (PCP). The production started in 1982. A PDO for a wellhead facility (WP) was approved in 1995 and for a water injection platform (IP) in 2000. Bridges connect the platforms. A PDO for two wellhead platforms on the northern and southern flanks was approved in 2001. A PDO for Valhall Redevelopment was approved in 2007. The plan included an accommodation and processing platform (PH) to replace aging facilities on the field. The PH-platform is supplied with power from shore. A PDO for Valhall Flank West which included a normally unmanned wellhead platform was approved in 2018, and the production started in 2019. An amended PDO for a new production and wellhead platform (PWP) was approved in June 2023.
43548
14.12.2023
21.04.2024
VALHALL
Reservoir
Valhall produces oil from chalk in the Upper Cretaceous Hod and Tor Formations. The reservoir depth is 2400 metres. The Tor Formation chalk is fine-grained and has good reservoir quality. Considerable fracturing allows oil and water to flow more easily than in the underlying Hod Formation.
43548
14.12.2023
21.04.2024
VALHALL
Recovery strategy
The field was initially produced with pressure depletion and compaction drive. Water injection in the centre of the field started in 2004. Chalk compaction as a result of pressure depletion and water weakening has led to seabed subsidence. Gas lift is used to optimise production in most of the production wells.
43548
28.02.2023
21.04.2024
VALHALL
Transport
Oil and NGL (Natural Gas Liquids) are routed via pipeline to the Ekofisk field and further to Teesside in the UK. Gas is sent via Norpipe to Emden in Germany.
43548
28.02.2023
21.04.2024
VALHALL
Status
The Valhall field has produced more than one billion barrels of oil equivalents, which is three times more than the original PDO estimate. New completion technology to increase recovery from the tight chalk reservoir is implemented in a new producer drilled on the northern flank of Valhall. Drilling of new wells will continue in the foreseeable future. Decommissioning of the QP, PCP and DP facilities must be completed by the end of 2026. Start-up of production from the new platform (PWP) is expected for 2027.
43548
14.12.2023
21.04.2024
VARG
Transport
Oil was off-loaded from the production vessel onto tankers. All gas was reinjected until gas export started in 2014. A pipeline was installed between the Varg and Rev fields to export the gas to the UK via the Central Area Transmission System (CATS).
43451
28.02.2023
21.04.2024
VARG
Status
The decommissioning plan for Varg was approved in 2001. The plan then was to produce until summer 2002, but measures implemented on the field prolonged its lifetime. A new decommissioning plan was submitted in 2015. Varg was shut down in 2016, and the facility was removed in 2018.
43451
09.12.2023
21.04.2024
VARG
Recovery strategy
The field was produced with pressure maintenance using water and gas injection. The smaller structures were produced by pressure depletion. All wells were produced with gas lift.
43451
28.02.2023
21.04.2024
VARG
Reservoir
Varg produced oil mainly from Upper Jurassic sandstone in the Ula Formation. The reservoir is at a depth of about 2700 metres. The structure is segmented and includes several isolated compartments with varying reservoir properties.
43451
09.12.2023
21.04.2024
VARG
Development
Varg is a field in the central part of the North Sea, south of the Sleipner Øst field. The water depth is 85 metres. Varg was discovered in 1984, and the plan for development and operation (PDO) was approved in 1996. The field was developed with a production vessel, Petrojarl Varg, which had integrated oil storage and was connected to the wellhead facility Varg A. The production started in 1998.
43451
09.12.2023
21.04.2024
VEGA
Reservoir
Vega produces gas and condensate from Middle Jurassic shallow marine sandstone in the Brent Group. Vega Sør additionally has an oil zone overlying the gas/condensate deposit. The reservoirs are at a depth of 3500 metres, and the quality varies from poor to medium across the field.
4467595
09.12.2023
21.04.2024
VEGA
Status
The production from Vega is currently limited by the gas production capacity rights at Gjøa platform.
4467595
13.12.2023
21.04.2024
VEGA
Recovery strategy
The field is produced by pressure depletion.
4467595
28.02.2023
21.04.2024
VEGA
Transport
The well stream is sent to the Gjøa field for processing. Oil and condensate are transported from Gjøa to the Troll Oil Pipeline II for further transport to the Mongstad terminal. The rich gas is exported to the Far North Liquids and Associated Gas System (FLAGS) on the British continental shelf for further transport to St Fergus in the UK.
4467595
28.02.2023
21.04.2024
VEGA
Development
Vega is a field in the northern part of the North Sea, 30 kilometres west of the Gjøa field. The water depth is 370 metres. Vega was discovered in 1981. The field consists of three separate structures: Vega Nord, Vega Sentral and Vega Sør. The plan for development and operation (PDO) for Vega Nord and Vega Sentral was approved in 2007. In 2011, the field was unitised with Vega Sør. The field has been developed with three 4-slot subsea templates, one on each structure. They are tied to the processing facility on the Gjøa platform. A total of nine production wells have been drilled. The production started in 2010.
4467595
13.12.2023
21.04.2024
VERDANDE
Development
Verdande is a field in the Norwegian Sea, 10 kilometres north of the Norne field. The water depth is 380 metres. Verdande was discovered in 2017, and the plan for development and operation (PDO) was approved in June 2023. The development concept includes a subsea template with three production wells tied-back to the Norne floating production, storage and offloading vessel (FPSO).
42002481
09.12.2023
21.04.2024
VERDANDE
Transport
The gas will be exported via the Åsgard Transport System (ÅTS) to the terminal at Kårstø. Oil and condensate will be offloaded from the Norne FPSO to shuttle tankers.
42002481
09.12.2023
21.04.2024
VERDANDE
Status
The field is under development, and the production is planned to start in 2025.
42002481
09.12.2023
21.04.2024
VERDANDE
Reservoir
The reservoir contains oil and gas in sandstone of Early Cretaceous age in the Lange Formation. It is at a depth of about 3000 metres and has good quality.
42002481
09.12.2023
21.04.2024
VERDANDE
Recovery strategy
The field will be produced by pressure depletion.
42002481
23.08.2023
21.04.2024
VESLEFRIKK
Reservoir
Veslefrikk produced oil and some gas from Jurassic sandstone in the Statfjord, Dunlin and Brent Groups. The main reservoir was in the Brent Group. The reservoir depths are between 2800 and 3200 metres.
43618
28.02.2023
21.04.2024
VESLEFRIKK
Development
Veslefrikk is a field in the northern part of the North Sea, 30 kilometres north of the Oseberg field. The water depth is 185 metres. Veslefrikk was discovered in 1981, and the plan for development and operation (PDO) was approved in 1987. The field was developed with two facilities, Veslefrikk A and Veslefrikk B. Veslefrikk A is a fixed steel wellhead facility with bridge connection to Veslefrikk B. Veslefrikk B is a semi-submersible facility for processing and accommodation. The production started in 1989. In 1994, PDOs were approved for the Statfjord reservoir and for the reservoirs in the Upper Brent and I-segment. PDO exemptions were granted for the development of several discoveries in the years 1994-2002.
43618
09.12.2023
21.04.2024
VESLEFRIKK
Status
Veslefrikk was shut down in 2022, and Veslefrikk B was removed from the field. Decommissioning must be completed by the end of 2027.
43618
09.12.2023
21.04.2024
VESLEFRIKK
Recovery strategy
Veslefrikk had earlier been produced with pressure support from water alternating gas injection (WAG) in the Brent and Dunlin reservoirs and with gas recycling in the Statfjord reservoir. The field was subsequently produced by depletion until shut-in.
43618
28.02.2023
21.04.2024
VESLEFRIKK
Transport
The oil was exported via the Oseberg Transport System (OTS) to the Sture terminal. The gas was exported through Statpipe to the Kårstø terminal.
43618
28.02.2023
21.04.2024
VEST EKOFISK
Status
Vest Ekofisk was shut down in 1998, and the facility was removed in 2012. The field is currently being evaluated for redevelopment in combination with other decommissioned fields in the area.
43513
09.12.2023
21.04.2024
VEST EKOFISK
Reservoir
Vest Ekofisk produced oil and gas from fractured chalk of Late Cretaceous age in the Tor Formation and of early Paleocene age in the Ekofisk Formation. The reservoir is at a depth of 3200 metres above a salt dome.
43513
09.12.2023
21.04.2024
VEST EKOFISK
Recovery strategy
The field was produced by pressure depletion.
43513
28.02.2023
21.04.2024
VEST EKOFISK
Development
Vest Ekofisk is a field in the southern part of the Norwegian sector in the North Sea, five kilometres west of the Ekofisk field. The water depth is 70 metres. Vest Ekofisk was discovered in 1970, and the plan for development and operation (PDO) was approved in 1973. The field was developed with a combined drilling, production and living quarters facility. The production started in 1977. From 1994, the Vest Ekofisk 2/4 D facility was remotely controlled from Ekofisk 2/4 T.
43513
09.12.2023
21.04.2024
VEST EKOFISK
Transport
The well stream was transported via pipeline to the Ekofisk Complex for further export to Emden in Germany and Teesside in the UK.
43513
28.02.2023
21.04.2024
VIGDIS
Reservoir
Vigdis produces oil from sandstone in several structures. The reservoirs in Vigdis Brent and Lomre are in the Middle Jurassic Brent Group, while the reservoirs in Vigdis Øst-Nordøst are in the Upper Triassic and Lower Jurassic Statfjord Group. The Borg Nordvest reservoir is in Upper Jurassic intra-Draupne sandstone. The reservoirs are at depths of 2200-2600 metres and have generally good quality.
43732
14.12.2023
21.04.2024
VIGDIS
Status
The strategy on Vigdis is to maintain reservoir pressure by water injection, while maximising production capacity and regularity. A subsea booster pump for accelerated and improved recovery was installed in 2020. New infill wells are planned for the coming years, and 4D seismic acquired in 2021 may result in additional drilling targets. Expected production startup for the Lomre structure is 2024.
43732
14.12.2023
21.04.2024
VIGDIS
Development
Vigdis is a field in the Tampen area in the northern part of the North Sea, between the Snorre, Statfjord and Gullfaks fields. The water depth is 280 metres. Vigdis was discovered in 1986, and the plan for development and operation (PDO) was approved in 1994. Vigdis comprises four structures: Vigdis Brent, Borg Nordvest, Vigdis Øst-Nordøst and Lomre. The Vigdis Brent structure includes several substructures. The field has been developed with seven subsea templates and two satellite wells connected to the Snorre A facility. The production started in 1997. Oil from Vigdis is processed in a dedicated processing module on Snorre A. Injection water is supplied from Snorre A and Statfjord C. A PDO for Vigdis Extension, including the discovery 34/7-23 S and adjoining deposits, was approved in 2002. The PDO for Vigdis Nordøst was approved in 2011. A PDO exemption was granted for Lomre in 2022.
43732
14.12.2023
21.04.2024
VIGDIS
Transport
The well stream from Vigdis is routed to Snorre A through two flowlines. Stabilised oil is transported by pipeline from Snorre A to Gullfaks A for storage and export. All produced gas from Vigdis is reinjected into the Snorre reservoir.
43732
28.02.2023
21.04.2024
VIGDIS
Recovery strategy
The field is produced by pressure support using water injection. Some of the reservoirs are affected by pressure depletion on the Statfjord field.
43732
28.02.2023
21.04.2024
VILJE
Development
Vilje is a field in the central part of the North Sea, 20 kilometres northeast of the Alvheim field. The water depth is 120 metres. Vilje was discovered in 2003, and the plan for development for operation (PDO) was approved in 2005. The field is developed with three horizontal subsea wells tied-back to the Alvheim production, storage and offloading vessel (FPSO). The production started in 2008. The Skogul field is tied-back to the Alvheim FPSO via the Vilje template.
3392471
13.12.2023
21.04.2024
VILJE
Reservoir
Vilje produces oil from turbidite sandstone of Paleocene age in the Heimdal Formation. The reservoir is in a fan system at a depth of 2150 metres and has good quality.
3392471
09.12.2023
21.04.2024
VILJE
Status
The recoverable volume estimates are significantly higher than in the PDO. However, production from the field is steadily declining due to increasing water cut.
3392471
28.02.2023
21.04.2024
VILJE
Recovery strategy
The field is produced by natural water drive from the regional underlying Heimdal aquifer.
3392471
28.02.2023
21.04.2024
VILJE
Transport
The well stream is routed by pipeline to the Alvheim FPSO, where the oil is offloaded to shuttle tankers. The gas is transported by pipeline from Alvheim to the Scottish Area Gas Evacuation (SAGE) pipeline in the UK sector.
3392471
28.02.2023
21.04.2024
VISUND
Recovery strategy
The field is mainly produced by pressure depletion, and partly with pressure support from water injection. Gas has earlier also been injected in some segments, but increased gas export since 2015 has reduced gas available for injection. Gas injection was terminated in 2021.
43745
14.12.2023
21.04.2024
VISUND
Transport
The oil is transported by pipeline to the Gullfaks A facility for storage and export via tankers. Gas is exported through the Kvitebjørn Gas Pipeline and on to the Kollsnes terminal, where the NGL is separated, and the dry gas is further exported to the market.
43745
28.02.2023
21.04.2024
VISUND
Development
Visund is a field in the northern part of the North Sea, northeast of the Gullfaks field. The water depth is 335 metres. Visund was discovered in 1986, and the plan for development and operation (PDO) was approved in 1996. The field is developed with a semi-submersible, integrated accommodation, drilling and processing facility (Visund A) and a subsea facility in the northern part of the field. The production started in 1999. A PDO for the gas phase was approved in 2002 and gas export started in 2005. A PDO exemption was granted in 2013 for the deposits Rhea and Titan east on Visund. The subsea facility north on Visund was replaced in 2013 due to problems with the original template. In 2017, a PDO exemption was granted for another subsea template north on Visund.
43745
14.12.2023
21.04.2024
VISUND
Status
The strategy for the Visund field is to maintain reservoir pressure within drilling limits and optimise oil recovery, while increasing gas exports. Oil production has been lower than expected in 2023 due to delays in drilling as well as technical problems with several of the existing wells. New production wells are being drilled continuously, some with exploration targets.
43745
14.12.2023
21.04.2024
VISUND
Reservoir
Visund produces oil and gas from sandstone of Late Triassic and Early Jurassic age in the Lunde Formation and Statfjord Group, and of Middle Jurassic age in the Brent Group. The reservoirs are in several tilted fault blocks with varying pressure and liquid systems. The reservoirs are at depths of 2900-3000 metres. The reservoir quality is generally good in the main reservoirs.
43745
14.12.2023
21.04.2024
VISUND SØR
Status
The production started up again in September 2023 after a temporary shut-in due to low reservoir pressure and high water production. One new well was drilled in 2023 and is producing from the Statfjord reservoir. Start-up attempts have been made to get shut-in wells back to production.
20461008
14.12.2023
21.04.2024
VISUND SØR
Development
Visund Sør is a field in the northern part of the North Sea, 10 kilometres northeast of the Gullfaks C platform. The water depth is 290 metres. Visund Sør was discovered in 2008, and the plan for development and operation (PDO) was approved in 2011. The field is developed with a subsea template tied to Gullfaks C. The production started in 2012.
20461008
14.12.2023
21.04.2024
VISUND SØR
Transport
The well stream is transported to Gullfaks C for processing and export.
20461008
28.02.2023
21.04.2024
VISUND SØR
Recovery strategy
The field is produced by pressure depletion.
20461008
28.02.2023
21.04.2024
VISUND SØR
Reservoir
Visund Sør produces oil and gas from sandstone in the Middle Jurassic Brent Group and the Upper Triassic Statfjord Group. The reservoir depth is 2800-2900 metres.
20461008
14.12.2023
21.04.2024
VOLUND
Recovery strategy
The field is produced with significant pressure support from the aquifer and with injection of produced water delivered from the Alvheim FPSO.
4380167
28.02.2023
21.04.2024
VOLUND
Reservoir
Volund produces oil from Paleocene sandstone in the Hermod Formation. The deposit is a unique injectite trap. The sand was remobilised in the early Eocene and injected into the overlying Balder Formation. The reservoir is at a depth of 2000 metres and has excellent quality.
4380167
09.12.2023
21.04.2024
VOLUND
Development
Volund is a field in the North Sea, 10 kilometres south of the Alvheim field. The water depth is 120 metres. Volund was discovered in 1994, and the plan for development and operation (PDO) was approved in 2007. The field was developed with a subsea template including four horizontal subsea production wells and one injection well tied to the Alvheim production, storage and offloading vessel (FPSO). The production started in 2009. An additional subsea template was installed subsequently.
4380167
14.12.2023
21.04.2024
VOLUND
Status
The recoverable volume estimates are significantly higher than in the PDO, partly because of additional wells drilled on the field. However, the production from Volund is declining due to increasing water cut.
4380167
13.12.2023
21.04.2024
VOLUND
Transport
The well stream is routed by pipeline to the Alvheim FPSO. The oil is offloaded to shuttle tankers, and the associated gas is transported to the Scottish Area Gas Evacuation (SAGE) pipeline system and further to St Fergus in the UK.
4380167
28.02.2023
21.04.2024
VOLVE
Status
Volve was shut down in 2016, and the facility was removed in 2018.
3420717
09.12.2023
21.04.2024
VOLVE
Transport
The oil was exported by tankers and the rich gas was transported to the Sleipner A facility for further export.
3420717
28.02.2023
21.04.2024
VOLVE
Reservoir
Volve produced oil from sandstone of Middle Jurassic age in the Hugin Formation. The reservoir is at a depth of 2700-3100 metres. The western part of the structure is heavily faulted and communication across the faults is uncertain.
3420717
09.12.2023
21.04.2024
VOLVE
Recovery strategy
The field was produced with water injection for pressure support.
3420717
28.02.2023
21.04.2024
VOLVE
Development
Volve is a field in the central part of the North Sea, five kilometres north of the Sleipner Øst field. The water depth is 80 metres. Volve was discovered in 1993, and the plan for development and operation (PDO) was approved in 2005. The field was developed with a jack-up processing and drilling facility. The vessel "Navion Saga" was used for storing stabilised oil. The production started in 2008.
3420717
09.12.2023
21.04.2024
YME
Transport
The oil is transported with tankers and the gas is reinjected.
43807
28.02.2023
21.04.2024
YME
Recovery strategy
The field is produced by pressure support from partial water injection and water alternating gas (WAG) injection. Some of the wells are equipped with gas lift.
43807
14.12.2023
21.04.2024
YME
Development
Yme is a field in the southeastern part of the Norwegian sector of the North Sea, 130 kilometres northeast of the Ula field. The water depth is 100 metres. The field comprises two separate main structures, Gamma and Beta, which are 12 kilometres apart. Yme was discovered in 1987, and the plan for development and operation (PDO) was approved in 1995. Yme was originally developed with a jack-up drilling and production platform on the Gamma structure and a storage vessel. The Beta structure was developed with a subsea template. The production started in 1996 and ceased in 2001, because operation of the field was no longer regarded as profitable. A PDO for the redevelopment of Yme was approved in 2007. The development concept was a new mobile offshore production unit (MOPU). Due to structural deficiencies and the vast amount of outstanding work to complete the facility, it was decided to remove it from the field in 2013. The removal of the MOPU was completed in 2016. In 2018, an amended PDO for the redevelopment of Yme was approved. The PDO includes a jack-up rig equipped with drilling and production facilities installed on the Gamma structure and a subsea template on the Beta structure, as well as reuse of existing facilities on the field. The production started again in 2021.
43807
14.12.2023
21.04.2024
YME
Reservoir
The reservoir contains oil in two separate main structures, Gamma and Beta. The structures comprise six deposits. The reservoirs are in sandstone of Middle Jurassic age in the Sandnes Formation, at a depth of 3150 metres. They are heterogeneous and have variable properties.
43807
14.12.2023
21.04.2024
YME
Status
The first WAG injection cycle was performed in mid-2023. The production was lower in 2023 than expected, due to delays in drilling and completion activities, lower production efficiency and higher water cut in some wells.
43807
14.12.2023
21.04.2024
YTTERGRYTA
Reservoir
Yttergryta produced gas from sandstone of Middle Jurassic age in the Fangst Group. The reservoir is at a depth of 2400-2500 metres.
4973114
09.12.2023
21.04.2024
YTTERGRYTA
Status
Yttergryta was shut down in 2012. The facility on Yttergryta is disconnected from the Midgard X template and will be decommissioned at the same time as the Åsgard facilities.
4973114
09.12.2023
21.04.2024
YTTERGRYTA
Development
Yttergryta is a field in the Norwegian Sea, 33 kilometres east of the Åsgard B platform. The water depth is 300 metres. Yttergryta was discovered in 2007, and the plan for development and operation (PDO) was approved in 2008. The field was developed with a subsea template connected to the Åsgard B platform via the Midgard X template. The production started in 2009.
4973114
09.12.2023
21.04.2024
YTTERGRYTA
Transport
The gas was transported to the template Midgard X and further to the Åsgard B facility for processing.
4973114
09.12.2023
21.04.2024
YTTERGRYTA
Recovery strategy
The field was produced by pressure depletion.
4973114
28.02.2023
21.04.2024
ÆRFUGL NORD
Reservoir
The reservoir contains gas and condensate in sandstone of Late Cretaceous age in the Lysing Formation. It is at a depth of 2800 metres and has good quality.
38542241
14.12.2023
21.04.2024
ÆRFUGL NORD
Transport
The well stream is transported to the Skarv FPSO for processing. The condensate is offloaded to shuttle tankers, while the gas is transported to the Kårstø terminal in an 80-kilometre pipeline connected to the Åsgard Transport System (ÅTS).
38542241
28.02.2023
21.04.2024
ÆRFUGL NORD
Recovery strategy
The field is produced by depletion.
38542241
28.02.2023
21.04.2024
ÆRFUGL NORD
Development
Ærfugl Nord is a field in the northern part of the Norwegian Sea, just west of the Skarv field. The water depth is 350-450 metres. Ærfugl Nord was discovered in 2012, and the plan for development and operation (PDO) was approved in 2018. The Ærfugl Nord development includes one production well tied-back to the Skarv production, storage and offloading vessel (FPSO). The production started in 2021.
38542241
14.12.2023
21.04.2024
ÆRFUGL NORD
Status
The production has been slightly higher in 2023 than expected, due to higher well productivity and uptime at the Skarv FPSO.
38542241
14.12.2023
21.04.2024
ØRN
Development
Ørn is a field in the northern part of the Norwegian Sea, 20 kilometres northwest of the Skarv field. The water depth is 380 metres. Ørn was discovered in 2019, and the plan for development and operation (PDO) was approved in June 2023. The development concept includes a subsea template with four slots tied-back to the Skarv floating production, storage and offloading vessel (FPSO).
42002484
09.12.2023
21.04.2024
ØRN
Reservoir
The reservoir contains gas and condensate in sandstone of Middle Jurassic age in the Garn and Not Formations. It is at a depth of about 4100 metres and has good quality.
42002484
08.12.2023
21.04.2024
ØRN
Status
Ørn is being developed together with Idun Nord and Alve Nord as part of the Skarv Satellite Project (SSP). The Production is planned to start in 2027.
42002484
12.08.2023
21.04.2024
ØRN
Recovery strategy
The field will be produced by pressure depletion.
42002484
12.08.2023
21.04.2024
ØRN
Transport
The gas will be exported via the Åsgard Transport System (ÅTS) to the terminal at Kårstø. Oil and condensate will be offloaded from the Skarv FPSO to shuttle tankers.
42002484
08.12.2023
21.04.2024
ØST FRIGG
Recovery strategy
The field was produced by pressure depletion.
43576
28.02.2023
21.04.2024
ØST FRIGG
Development
Øst Frigg is a field in the central part of the North Sea, four kilometres east of the Frigg field. The water depth is 100 metres. Øst Frigg was discovered in 1973, and the plan for development and operation (PDO) was approved in 1984. The field was developed with two subsea templates and a central manifold station tied to the Frigg field. The production started in 1988.
43576
09.12.2023
21.04.2024
ØST FRIGG
Transport
Gas was transported in a pipeline from the manifold to the Frigg field (TCP2) for processing, and further via pipeline the Shell-Esso Gas and Liquids (SEGAL) terminal at St Fergus in the UK.
43576
28.02.2023
21.04.2024
ØST FRIGG
Status
Øst Frigg was shut down in 1997, and the subsea templates were removed in 2001. The ongoing development of the Fulla field also includes a redevelopment of Øst Frigg. Appraisal wells were drilled on the Øst Frigg field in 2022 and 2023.
43576
09.12.2023
21.04.2024
ØST FRIGG
Reservoir
Øst Frigg produced gas from sandstone of Eocene age in the Frigg Formation. The reservoir is at a depth of 1900 metres and has excellent quality. The field contains two separate structures, which are part of the same pressure system as the Frigg field.
43576
09.12.2023
21.04.2024
ÅSGARD
Reservoir
Åsgard produces gas and considerable amounts of condensate mainly from Jurassic sandstone at depths of as much as 4850 metres. The reservoir quality varies in the different formations, and there are large variations in the reservoir properties between the four accumulations. Smørbukk is in a rotated fault block and contains gas, condensate and oil in the Åre, Tilje, Tofte, Ile and Garn Formations. Smørbukk Sør contains oil, gas and condensate in the Tilje, Ile and Garn Formations. The Midgard gas accumulation is divided into four structural segments, with the main reservoir in the Ile and Garn Formations. Blåbjørn contains oil at a depth of 3100 metres in the Upper Cretaceous Lysing Formation. The Blåbjørn reservoir is located above Smørbukk Sør.
43765
14.12.2023
21.04.2024
ÅSGARD
Transport
Oil and condensate are temporarily stored at Åsgard A, then shipped to shore by tankers. The gas is exported through the Åsgard Transport System (ÅTS) to the terminal at Kårstø. The condensate from Åsgard is sold as oil.
43765
14.12.2023
21.04.2024
ÅSGARD
Status
Work is ongoing to increase the recovery from the field, with focus on a further reduction of the inlet pressure on the facilities and identification of new targets for infill drilling. Challenges for Åsgard are avoiding minimum flow in the subsea flowlines and depleted reservoirs that impact the drilling window. Subsea gas compression has has accelerated and prolonged gas production at Åsgard. Phase II of the subsea gas compression development is ongoing. New tie-ins to Åsgard, such as Blåbjørn and Smørbukk Nord, can prolong the lifetime of the facilities.
43765
14.12.2023
21.04.2024
ÅSGARD
Recovery strategy
Smørbukk and Smørbukk Sør are produced mainly by pressure depletion, with minor pressure support by gas injection. Midgard and Blåbjørn are produced by pressure depletion.
43765
14.12.2023
21.04.2024
ÅSGARD
Development
Åsgard is a field in the central part of the Norwegian Sea. The water depth is 240-300 metres. Åsgard was discovered in 1981, and the plan for development and operation (PDO) was approved in 1996. The Åsgard field includes the accumulations Smørbukk, Smørbukk Sør, Midgard and Blåbjørn. The field has been developed with subsea wells tied-back to a production, storage and offloading vessel (FPSO), Åsgard A. The development also includes Åsgard B, a floating, semi-submersible facility for gas and condensate processing. The gas centre is connected to a storage vessel for condensate, Åsgard C. The production started in 1999. An amended PDO for a subsea template at Smørbukk Sør was approved in 2004. A PDO for subsea gas compression at Midgard was approved in 2012, and the facility started operation in 2016. PDO exemptions for Blåbjørn and Smørbukk Nord were granted in 2023. The Åsgard facilities are an important part of the Norwegian Sea infrastructure. The Mikkel and Morvin fields are tied to Åsgard B for processing, and gas from Åsgard B is sent to the Tyrihans field for gas lift. The Trestakk field is tied-back to Åsgard A.
43765
14.12.2023
21.04.2024
AASTA HANSTEEN
Recovery strategy
The field is produced by pressure depletion and natural aquifer drive.
23395946
28.02.2023
21.04.2024
AASTA HANSTEEN
Development
Aasta Hansteen is a field in the northern part of the Norwegian Sea, 120 kilometres northwest of the Norne field. The water depth is 1270 metres. Aasta Hansteen was discovered in 1997, and the plan for development and production (PDO) was approved in 2013. The field initially comprised three separate accumulations: Luva, Haklang and Snefrid Sør. A new accumulation was discovered in 2015, Snefrid Nord. The field is developed with a SPAR (Single Point Anchor Reservoir) platform moored to the seabed. The development includes in addition two subsea templates with four slots each and two subsea templates with one slot each (satellites). The templates are tied-back to the platform through pipelines and steel catenary risers. Aasta Hansteen was granted a PDO exemption for the development Snefrid Nord in 2017. The production started in 2018.
23395946
14.12.2023
21.04.2024
AASTA HANSTEEN
Transport
Gas from Aasta Hansteen is transported via the Polarled pipeline to the terminal at Nyhamna. Light oil is offloaded to shuttle tankers and transported to the market.
23395946
28.02.2023
21.04.2024
AASTA HANSTEEN
Reservoir
The main reservoirs contain gas in Upper Cretaceous sandstone in the Nise Formation, at a depth of 3000 metres. The reservoir quality is good.
23395946
28.02.2023
21.04.2024
AASTA HANSTEEN
Status
The production is at the end of the plateau phase. It is planned to produce the field with low-pressure production in the future. The Irpa field is under construction as a subsea tied-back to Aasta Hansteen.
23395946
14.12.2023
21.04.2024