GULLFAKS SØR
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General information
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Picture
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Discoveries included
Discoveries included Discovery name -
Activity status — history
Activity status — history StatusStatus fromStatus toProducing10.10.1998Approved for production29.03.199609.10.1998 -
Located in
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PDO – Plan for Development and Operations
PDO – Plan for Development and Operations Date PDO approvedDescriptionType19.01.2024PUD-fritak for SolanforekomstenPDO Exemption16.09.2019PUD-fritak for Opal Sør innvilgetPDO Exemption05.03.2018PUD-fritak for Gullfaks tilleggsressurser RF Lunde, RF Lomvi, 07A og GFS 13 ABPDO Exemption28.04.2015PUD-fritak Segment 10A/B innvilgetPDO Exemption20.03.2015Rutil i Gullfaks Rimfaksdalen. Kongen i StatsrådPDO22.03.2012PUD-fritak Gullfaks Sør PrekomresjonPDO Exemption11.02.2005Skinfaks og Rimfaks Kongen i StatsrådPDO16.01.2004PUD fritak for Gulltopp innvilgetPDO Exemption08.06.1998Gullfaks Satelitter Fase2PDO29.03.1996Gullfaks Satelitter Fase I. Kongen i StatsrådPDO -
Ownership — full history
Ownership — full history Owner kindOwner nameOwnership from dateOwnership to datePRODUCTION LICENSE29.03.1996 -
Operatorship — full history
Operatorship — full history Company nameOperatorship fromOperatorship to16.05.201801.11.200915.05.201801.01.200931.10.200901.10.200731.12.200810.05.200130.09.200729.03.199609.05.2001 -
Licensees — full history
Licensees — full history Company nameNation codeCompany share [%]Date licensee fromDate licensee toNO51.00000016.05.2018NO30.00000016.05.2018NO19.00000016.05.2018NO51.00000031.10.201315.05.2018NO30.00000031.10.201315.05.2018NO19.00000031.10.201315.05.2018NO70.00000002.11.200930.10.2013NO30.00000002.11.200930.10.2013NO70.00000001.01.200901.11.2009NO30.00000001.01.200901.11.2009NO61.00000001.10.200731.12.2008NO30.00000001.10.200731.12.2008NO9.00000001.10.200731.12.2008NO61.00000001.01.200730.09.2007NO30.00000001.01.200730.09.2007NO9.00000001.01.200730.09.2007NO61.00000017.06.200131.12.2006NO30.00000017.06.200131.12.2006NO9.00000017.06.200131.12.2006NO61.00000001.06.200116.06.2001NO30.00000001.06.200116.06.2001NO9.00000001.06.200116.06.2001NO73.00000010.05.200131.05.2001NO18.00000010.05.200131.05.2001NO9.00000010.05.200131.05.2001NO91.00000011.12.199909.05.2001NO9.00000011.12.199909.05.2001NO85.00000029.03.199610.12.1999NO9.00000029.03.199610.12.1999NO6.00000029.03.199610.12.1999 -
Description
Description TypeTextDate updatedDevelopmentGullfaks 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 2019.13.12.2023ReservoirThe 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.13.12.2023Recovery strategyThe 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.13.12.2023TransportThe 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.28.02.2023StatusThe 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.13.12.2023 -
Investments (expected)
Investments (expected) The operator's future investments related to the reserves from 2023 [mill NOK 2023-kroner]. The stated investment estimate has not been corrected for possible investment sharing.5693 -
Investments (historical)
Investments (historical) Investments
[mill NOK nominal values]Sum72982202234482021333020202311201916702018116820171883201657052015830420146827201354762012452020111613201063200911820081332007145120062809200520502004762200311942002150120012408200043121999329719983089199725541996986 -
Production , saleable
Production , saleable MonthNet - oil
[mill Sm3]Net - gas
[bill Sm3]Net - condensate
[mill Sm3]Net - NGL
[mill Sm3]Net - oil equivalents
[mill Sm3]Sum60.66290787.9620520.05027721.043893169.7191290.9491153.2894410.0000000.5774654.8160211.3987515.0286680.0000000.8002427.2276611.2977915.5701250.0000000.8338357.7017511.3225115.7457200.0000001.1968098.2650401.2257004.8761750.0000001.2335817.3354561.4634414.9076000.0000001.0976307.4686711.2032066.0252160.0000001.5301238.7585451.4850895.9154600.0000001.5946468.9951951.6948094.3272570.0000001.2672037.2892691.8412303.1657130.0286440.9348325.9704192.2332583.3827450.0153270.9804466.6117762.3812462.7476160.0039750.7710305.9038671.8820772.4355300.0001100.6655584.9832751.5938161.6089510.0000000.2799423.4827092.0851942.3361500.0022090.7410805.1646333.0074182.6370830.0000110.8204086.4649203.1080033.7383910.0000010.8780787.7244733.2803154.0433290.0000001.0165198.3401632.9328323.6367870.0000000.9667527.5363713.8894933.8033290.0000000.8244668.5172884.1706273.2135810.0000000.7408268.1250343.3791502.5428080.0000000.5786626.5006203.7291271.8866030.0000000.4575736.0733033.8381720.5991310.0000000.1512624.5885652.9944950.4986430.0000000.1049253.5980632.2070630.0000000.0000000.0000002.2070630.0689780.0000000.0000000.0000000.068978 -
Production , sum wellbores
Production , sum wellbores MonthGross - oil
[mill Sm3]Gross - gas
[bill Sm3]Gross - condensate
[mill Sm3]Gross - oil equivalents
[mill Sm3]Sum60.614556114.9975540.000000175.6121100.9097524.0461790.0000004.9559311.3694625.7882260.0000007.1576881.3209726.0895710.0000007.4105431.3346857.3975130.0000008.7321981.2183926.0999950.0000007.3183871.4557697.7336110.0000009.1893801.2032069.0879630.00000010.2911691.4850899.2374440.00000010.7225331.6948097.2796060.0000008.9744151.8412306.7961460.0000008.6373762.2332588.3633620.00000010.5966202.3812468.0836930.00000010.4649391.8820776.7239480.0000008.6060251.5938161.3364140.0000002.9302302.0851941.5788560.0000003.6640503.0074181.6379030.0000004.6453213.1077501.6705110.0000004.7782613.2803152.2210870.0000005.5014022.9328322.3111040.0000005.2439363.8894932.4717240.0000006.3612174.1708062.4931100.0000006.6639163.3791501.6830000.0000005.0621503.7291271.3653330.0000005.0944603.8381721.4709510.0000005.3091232.9944951.3774630.0000004.3719582.2070630.6161580.0000002.8232210.0689780.0366830.0000000.105661 -
Production – charts
Production – charts Production – charts Production – charts Production – charts Production – charts Production – charts Any produced water is only included after 1.1.2000 -
Wellbores – exploration
Wellbores – exploration Wellbore nameEntered dateCompleted datePurposeStatusContent26.04.200216.05.2002WILDCATP&AOIL/GAS26.03.200226.04.2002WILDCATP&AOIL/GAS28.10.201108.01.2012WILDCATP&AOIL09.09.197808.12.1978WILDCATP&AOIL/GAS14.12.198211.04.1983APPRAISALSUSPENDEDOIL/GAS31.08.198327.09.1983APPRAISALP&AOIL/GAS22.02.198308.07.1983WILDCATP&AOIL/GAS26.07.198422.10.1984APPRAISALP&AGAS02.01.198616.01.1986APPRAISALJUNKEDNOT APPLICABLE16.01.198612.05.1986APPRAISALP&AOIL/GAS08.04.198713.07.1987APPRAISALSUSPENDEDOIL/GAS15.07.198710.08.1987APPRAISALP&AOIL/GAS25.09.198815.12.1988APPRAISALP&AOIL/GAS15.12.198803.02.1989APPRAISALP&AOIL/GAS27.04.198910.07.1989APPRAISALP&AOIL/GAS10.07.198901.08.1989APPRAISALRE-CLASS TO TESTOIL/GAS24.02.199027.04.1990APPRAISALP&AOIL/GAS28.04.199213.07.1992APPRAISALP&AOIL26.01.199522.02.1995WILDCATP&AOIL22.02.199503.04.1995APPRAISALSUSPENDEDOIL17.10.200125.10.2001APPRAISALP&AOIL05.04.199529.05.1995APPRAISALP&AOIL/GAS25.02.200111.04.2001WILDCATP&AOIL30.05.200108.07.2001WILDCATRE-CLASS TO DEVGAS/CONDENSATE22.09.200202.11.2002WILDCATP&AOIL08.05.200621.05.2006APPRAISALP&AOIL20.03.200608.05.2006WILDCATP&AOIL18.06.201106.08.2011WILDCATP&AOIL/GAS07.08.201122.08.2011WILDCATP&AOIL/GAS05.08.200910.11.2009APPRAISALP&ADRY24.03.201101.06.2011WILDCATP&AGAS/CONDENSATE06.12.201024.03.2011WILDCATP&AGAS/CONDENSATE -
Wellbores – development
Wellbores – development Wellbore nameEntered dateCompleted datePurposeContent28.04.200608.10.2007PRODUCTIONOIL13.05.201414.08.2014PRODUCTIONOIL21.01.202110.02.2021PRODUCTIONOIL26.01.202423.02.2024PRODUCTIONOIL/GAS10.05.200628.07.2007PRODUCTIONOIL02.05.201530.05.2015PRODUCTIONGAS04.05.200605.06.2006OBSERVATIONOIL08.06.200605.01.2007PRODUCTIONOIL24.10.202008.11.2020OBSERVATIONNOT APPLICABLE09.11.202015.11.2020OBSERVATIONNOT APPLICABLE18.11.202028.11.2020OBSERVATIONNOT APPLICABLE02.12.202009.12.2020PRODUCTIONOIL08.03.202424.03.2024PRODUCTIONOIL/GAS07.05.200614.06.2007PRODUCTIONOIL15.11.202305.01.2024PRODUCTIONOIL15.02.200716.04.2007PRODUCTIONOIL23.01.202204.03.2022PRODUCTIONOIL18.05.200520.02.2008PRODUCTIONOIL28.11.200024.05.2001PRODUCTIONGAS16.11.200022.08.2001PRODUCTIONOIL17.05.199912.07.1999PRODUCTIONOIL10.05.201312.06.2013PRODUCTIONOIL/GAS15.05.199921.08.1999OBSERVATIONNOT APPLICABLE09.10.199919.11.1999PRODUCTIONOIL13.01.200225.01.2002PRODUCTIONOIL21.04.200519.05.2005PRODUCTIONOIL04.07.199810.08.1998PRODUCTIONOIL07.07.202403.08.2024PRODUCTIONOIL/GAS09.05.202131.05.2021INJECTIONGAS25.06.200618.08.2006INJECTIONGAS19.08.200601.09.2006INJECTIONGAS02.09.200610.09.2006INJECTIONGAS27.05.200010.07.2000INJECTIONGAS14.10.201122.11.2011INJECTIONGAS15.05.201314.08.2013INJECTIONGAS07.12.199818.02.1999INJECTIONGAS26.03.200209.05.2002INJECTIONGAS13.04.200613.05.2006INJECTIONGAS25.11.201216.01.2013INJECTIONGAS01.05.201212.07.2012PRODUCTIONOIL02.09.202221.09.2022PRODUCTIONOIL/GAS26.07.200415.10.2004PRODUCTIONOIL16.10.200404.11.2004PRODUCTIONOIL04.04.200021.05.2000PRODUCTIONOIL13.10.201112.04.2012PRODUCTIONOIL09.08.199706.10.1997OBSERVATIONNOT APPLICABLE07.10.199726.12.1997PRODUCTIONOIL01.11.200323.01.2004PRODUCTIONOIL21.07.202301.10.2023PRODUCTION09.04.199722.10.1998PRODUCTIONOIL18.06.200412.07.2004PRODUCTIONOIL12.04.200128.06.2001PRODUCTIONOIL05.05.202028.05.2020PRODUCTIONOIL22.07.200517.08.2005PRODUCTIONNOT APPLICABLE18.08.200518.12.2005PRODUCTIONOIL26.08.201201.10.2012OBSERVATIONNOT APPLICABLE05.10.201218.11.2012PRODUCTIONOIL28.06.202017.08.2020OBSERVATIONNOT APPLICABLE19.08.202001.09.2020PRODUCTIONOIL04.03.199930.03.1999OBSERVATIONNOT APPLICABLE31.03.199917.04.1999PRODUCTIONOILPRODUCTION19.04.199829.05.1998OBSERVATIONNOT APPLICABLE30.05.199807.06.1998PRODUCTIONOIL22.01.201326.02.2013PRODUCTIONOIL/GAS16.06.199927.08.1999PRODUCTIONOIL22.11.2024PRODUCTION10.07.200118.12.2001PRODUCTIONOIL03.04.201331.07.2013PRODUCTIONOIL13.08.200012.09.2000OBSERVATIONNOT APPLICABLE18.09.200005.12.2000PRODUCTIONOIL20.08.201823.10.2018OBSERVATIONNOT APPLICABLE30.10.201803.11.2018PRODUCTIONOIL/GAS31.05.200030.06.2000PRODUCTIONOIL09.05.201425.06.2014PRODUCTIONOIL/GAS19.12.200030.01.2001PRODUCTIONOIL23.06.201823.07.2018PRODUCTIONGAS18.05.202313.06.2023PRODUCTIONGAS/CONDENSATE10.04.200024.05.2000PRODUCTIONOIL03.08.201405.03.2015PRODUCTIONOIL13.09.202430.09.2024PRODUCTIONOIL02.10.202405.10.2024PRODUCTIONOIL11.06.199726.07.1997INJECTIONGAS10.07.202110.08.2021OBSERVATIONNOT APPLICABLE15.08.202130.08.2021PRODUCTIONOIL/GAS06.02.200018.05.2000INJECTIONGAS16.07.200008.08.2000INJECTIONGAS04.10.202106.11.2021INJECTIONGAS30.05.200108.07.2001INJECTIONGAS27.05.200209.08.2002INJECTIONNOT APPLICABLE12.12.200223.12.2002INJECTIONGAS02.04.199801.06.1998PRODUCTIONOIL22.08.199810.09.1998PRODUCTIONOIL03.04.201906.05.2019PRODUCTIONOIL30.03.199830.03.2000PRODUCTIONOIL27.04.201210.06.2012PRODUCTIONGAS/CONDENSATE26.06.201902.07.2019PRODUCTIONGAS04.04.202314.04.2023PRODUCTIONOIL09.03.200029.03.2000PRODUCTIONGAS12.03.200131.05.2001PRODUCTIONGAS28.01.200016.04.2001PRODUCTIONGAS09.10.200031.10.2000PRODUCTIONGAS14.11.199926.01.2000PRODUCTIONGAS02.03.200116.05.2001PRODUCTIONGAS07.10.200010.01.2001OBSERVATIONNOT APPLICABLE15.01.200127.10.2001PRODUCTIONGAS10.01.200318.03.2003PRODUCTIONGAS31.07.200124.08.2001OBSERVATIONNOT APPLICABLE28.08.200105.09.2001OBSERVATIONNOT APPLICABLE02.04.200315.04.2003OBSERVATIONNOT APPLICABLE18.04.200310.03.2004PRODUCTIONGAS07.07.200203.08.2002OBSERVATIONNOT APPLICABLE04.08.200212.09.2002PRODUCTIONOIL14.10.201420.05.2016PRODUCTIONOIL/GAS21.05.201628.05.2016PRODUCTIONOIL30.12.202010.02.2021PRODUCTIONGAS30.08.201315.07.2016PRODUCTIONOIL15.11.201528.03.2016PRODUCTIONOIL05.12.202009.05.2022PRODUCTIONOIL07.12.202013.07.2022PRODUCTIONOIL/GAS11.10.201326.11.2013INJECTIONGAS04.12.201420.01.2015INJECTIONGAS25.01.201516.06.2015INJECTIONGAS11.01.201412.03.2014PRODUCTIONOIL31.03.201525.04.2015PRODUCTIONGAS25.09.201924.10.2019PRODUCTIONGAS10.11.202201.01.2023PRODUCTIONGAS/CONDENSATE19.07.201918.08.2019PRODUCTIONGAS24.03.201524.05.2015PRODUCTIONGAS -
Wellbores – other
Wellbores – other Wellbore nameEntered dateCompleted datePurposeStatus21.04.201022.04.2010SOIL DRILLINGP&A