Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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22.12.2024 - 01:25
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SLEIPNER VEST

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  • General information

    General information
    Attribute Value
    Field name
    Official field name
    SLEIPNER VEST
    Factmaps in new window
    Current activity status
    Current activity status of the field. Example of legal values: SHUT DOWN, PRODUCING, PDO APPROVED
    Producing
    Discovery wellbore
    Name of the wellbore which proved the field.
    Discovery year.
    The year the field was discovered
    1974
    Main area
    Main NCS area. Example of legal values: NORTH SEA, NORWEGIAN SEA, BARENTS SEA
    North sea
    Main supply base
    Main supply base
    Dusavik
    NPDID field
    Norwegian Offshore Directorate's unique id for fields
    43457
  • Picture

    Picture
    SLEIPNER VEST Field
  • Discoveries included

    Discoveries included
    Discovery name
  • Activity status — history

    Activity status — history
    Status
    Status from
    Status to
    Producing
    29.08.1996
    Approved for production
    14.12.1992
    28.08.1996
  • Located in

    Located in
    Block name
    Prod. licence
    15/9
    15/6
  • PDO – Plan for Development and Operations

    PDO – Plan for Development and Operations
    Date PDO approved
    Description
    Type
    14.12.1992
    Behandlet i Stortinget
    PDO
    Frida Kahlo
    PDO Exemption
  • Ownership — full history

    Ownership — full history
    Owner kind
    Owner name
    Ownership from date
    Ownership to date
    BUSINESS ARRANGEMENT AREA
    01.07.1994
    PRODUCTION LICENSE
    14.12.1992
    30.06.1994
  • Operatorship — full history

    Operatorship — full history
    Company name
    Operatorship from
    Operatorship to
    16.05.2018
    01.11.2009
    15.05.2018
    01.01.2009
    31.10.2009
    01.10.2007
    31.12.2008
    10.05.2001
    30.09.2007
    14.12.1992
    09.05.2001
  • Licensees — full history

    Licensees — full history
    Company name
    Nation code
    Company share [%]
    Date licensee from
    Date licensee to
    NO
    58.349440
    25.09.2024
    NO
    24.411200
    25.09.2024
    NO
    17.239360
    25.09.2024
    NO
    58.349440
    18.06.2024
    24.09.2024
    NO
    24.411200
    18.06.2024
    24.09.2024
    NO
    17.239360
    18.06.2024
    24.09.2024
    NO
    58.349440
    23.01.2024
    17.06.2024
    NO
    17.239360
    23.01.2024
    17.06.2024
    NO
    15.000000
    23.01.2024
    17.06.2024
    NO
    9.411200
    23.01.2024
    17.06.2024
    NO
    58.349440
    02.05.2023
    22.01.2024
    NO
    17.239360
    02.05.2023
    22.01.2024
    NO
    15.000000
    02.05.2023
    22.01.2024
    NO
    9.411200
    02.05.2023
    22.01.2024
    NO
    58.349440
    28.01.2022
    01.05.2023
    NO
    17.239360
    28.01.2022
    01.05.2023
    NO
    15.000000
    28.01.2022
    01.05.2023
    NO
    9.411200
    28.01.2022
    01.05.2023
    NO
    58.349440
    10.12.2019
    27.01.2022
    NO
    17.239360
    10.12.2019
    27.01.2022
    NO
    15.000000
    10.12.2019
    27.01.2022
    NO
    9.411200
    10.12.2019
    27.01.2022
    NO
    58.349440
    16.05.2018
    09.12.2019
    NO
    17.239360
    16.05.2018
    09.12.2019
    NO
    15.000000
    16.05.2018
    09.12.2019
    NO
    9.411200
    16.05.2018
    09.12.2019
    NO
    58.349440
    21.12.2016
    15.05.2018
    NO
    17.239360
    21.12.2016
    15.05.2018
    NO
    15.000000
    21.12.2016
    15.05.2018
    NO
    9.411200
    21.12.2016
    15.05.2018
    NO
    58.349440
    31.12.2015
    20.12.2016
    NO
    17.239360
    31.12.2015
    20.12.2016
    NO
    15.000000
    31.12.2015
    20.12.2016
    NO
    9.411200
    31.12.2015
    20.12.2016
    NO
    58.349440
    01.11.2009
    30.12.2015
    NO
    32.239360
    01.11.2009
    30.12.2015
    NO
    9.411200
    01.11.2009
    30.12.2015
    NO
    58.349440
    01.01.2009
    31.10.2009
    NO
    32.239360
    01.01.2009
    31.10.2009
    NO
    9.411200
    01.01.2009
    31.10.2009
    NO
    49.502910
    01.10.2007
    31.12.2008
    NO
    32.239360
    01.10.2007
    31.12.2008
    NO
    9.411200
    01.10.2007
    31.12.2008
    NO
    8.846530
    01.10.2007
    31.12.2008
    NO
    49.502910
    01.01.2007
    30.09.2007
    NO
    32.239360
    01.01.2007
    30.09.2007
    NO
    9.411200
    01.01.2007
    30.09.2007
    NO
    8.846530
    01.01.2007
    30.09.2007
    NO
    49.502910
    01.10.2004
    31.12.2006
    NO
    32.239360
    01.10.2004
    31.12.2006
    NO
    9.411200
    01.10.2004
    31.12.2006
    NO
    8.846530
    01.10.2004
    31.12.2006
    NO
    49.502910
    06.05.2003
    30.09.2004
    NO
    32.239360
    06.05.2003
    30.09.2004
    NO
    9.411200
    06.05.2003
    30.09.2004
    NO
    8.846530
    06.05.2003
    30.09.2004
    NO
    49.502910
    01.06.2001
    05.05.2003
    NO
    32.239360
    01.06.2001
    05.05.2003
    NO
    9.411200
    01.06.2001
    05.05.2003
    NO
    8.846530
    01.06.2001
    05.05.2003
    NO
    32.374530
    10.05.2001
    31.05.2001
    NO
    32.239360
    10.05.2001
    31.05.2001
    NO
    17.128380
    10.05.2001
    31.05.2001
    NO
    9.411200
    10.05.2001
    31.05.2001
    NO
    8.846530
    10.05.2001
    31.05.2001
    NO
    49.502910
    24.07.2000
    09.05.2001
    NO
    32.239360
    24.07.2000
    09.05.2001
    NO
    9.411200
    24.07.2000
    09.05.2001
    NO
    8.846530
    24.07.2000
    09.05.2001
    NO
    49.502910
    01.01.1998
    23.07.2000
    NO
    32.239360
    01.01.1998
    23.07.2000
    NO
    9.411200
    01.01.1998
    23.07.2000
    NO
    8.846530
    01.01.1998
    23.07.2000
    NO
    49.502910
    01.07.1994
    31.12.1997
    NO
    32.239360
    01.07.1994
    31.12.1997
    NO
    8.846530
    01.07.1994
    31.12.1997
    NO
    8.470080
    01.07.1994
    31.12.1997
    NO
    0.941120
    01.07.1994
    31.12.1997
    NO
    52.600000
    15.01.1993
    30.06.1994
    NO
    28.000000
    15.01.1993
    30.06.1994
    NO
    9.400000
    15.01.1993
    30.06.1994
    NO
    9.000000
    15.01.1993
    30.06.1994
    NO
    1.000000
    15.01.1993
    30.06.1994
    NO
    49.600000
    14.12.1992
    14.01.1993
    NO
    30.400000
    14.12.1992
    14.01.1993
    NO
    10.000000
    14.12.1992
    14.01.1993
    NO
    9.000000
    14.12.1992
    14.01.1993
    NO
    1.000000
    14.12.1992
    14.01.1993
  • Norwegian Offshore Directorate – estimate for reserves (Norwegian share)

    Norwegian Offshore Directorate – estimate for reserves (Norwegian share)
    Estimates for reserves do not take commercial agreements into consideration.
    Norwegian Offshore Directorate – estimate for reserves (Norwegian share)
    Valid date:
    31.12.2023
    Norwegian Offshore Directorate – estimate for reserves (Norwegian share)
    Orig. recoverable oil
    [mill Sm3]
    Orig. recoverable gas
    [bill Sm3]
    Orig. recoverable NGL
    [mill tonn]
    Orig. recoverable cond.
    [mill Sm3]
    Orig. recoverable oil eq.
    [mill Sm3 o.e]
    6.88
    155.67
    10.57
    29.74
    212.37
    Norwegian Offshore Directorate – estimate for reserves (Norwegian share)
    Orig. inplace oil
    [mill Sm3]
    Orig. inplace ass. liquid
    [mill Sm3]
    Orig. inplace ass. gas
    [bill Sm3]
    Orig. inplace free gas
    [bill Sm3]
    0.00
    80.00
    0.00
    187.00
    Norwegian Offshore Directorate – estimate for reserves (Norwegian share)
    Remaining oil
    [mill Sm3]
    Remaining gas
    [bill Sm3]
    Remaining NGL
    [mill tonn]
    Remaining cond.
    [mill Sm3]
    Remaining oil eq.
    [mill Sm3 o.e]
    1.30
    7.78
    0.21
    0.00
    9.48
    Norwegian Offshore Directorate – estimate for reserves (Norwegian share)
  • Description

    Description
    Type
    Text
    Date updated
    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.
    14.12.2023
    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.
    14.12.2023
    Recovery strategy
    The field is produced by pressure depletion. CO2 is removed from the gas and injected for storage in the Utsira Formation.
    14.12.2023
    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.
    28.02.2023
    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.
    14.12.2023
  • 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.
    3555
  • Investments (historical)

    Investments (historical)
    Investments
    [mill NOK nominal values]
    Sum
    25699
    2022
    136
    2021
    563
    2020
    131
    2019
    22
    2018
    334
    2017
    612
    2016
    154
    2015
    154
    2014
    146
    2013
    125
    2012
    146
    2011
    438
    2010
    1528
    2009
    905
    2008
    1526
    2007
    679
    2006
    219
    2005
    64
    2004
    1499
    2003
    1299
    2002
    676
    2001
    391
    2000
    752
    1999
    552
    1998
    659
    1997
    758
    1996
    2725
    1995
    3836
    1994
    3418
    1993
    955
    1992
    282
    1991
    15
  • Production , saleable

    Production , saleable
    Month
    Net - oil
    [mill Sm3]
    Net - gas
    [bill Sm3]
    Net - condensate
    [mill Sm3]
    Net - NGL
    [mill Sm3]
    Net - oil equivalents
    [mill Sm3]
    Sum
    5.653285
    33.908710
    29.662073
    19.792908
    89.016976
    2024
    0.215209
    1.277875
    0.000000
    0.070277
    1.563361
    2023
    0.298044
    1.912530
    0.000000
    0.089212
    2.299786
    2022
    0.204983
    1.312402
    0.000000
    0.061525
    1.578910
    2021
    0.310681
    1.821879
    0.000000
    0.209403
    2.341963
    2020
    0.429250
    2.294455
    0.000000
    0.339246
    3.062951
    2019
    0.524058
    2.819079
    0.000000
    0.398356
    3.741493
    2018
    0.689220
    3.160950
    0.000000
    0.431864
    4.282034
    2017
    0.736279
    3.447391
    0.000000
    0.387821
    4.571491
    2016
    0.769995
    3.620209
    0.000000
    0.389568
    4.779772
    2015
    0.825587
    4.077888
    0.000000
    0.526387
    5.429862
    2014
    0.649979
    3.168760
    0.220045
    0.586209
    4.624993
    2013
    0.000000
    0.000000
    1.056395
    0.759164
    1.815559
    2012
    0.000000
    0.000000
    1.330014
    0.887444
    2.217458
    2011
    0.000000
    0.000000
    1.455424
    0.970150
    2.425574
    2010
    0.000000
    0.000000
    1.046827
    0.763977
    1.810804
    2009
    0.000000
    0.000000
    1.241394
    0.841613
    2.083007
    2008
    0.000000
    0.000000
    1.267294
    0.711209
    1.978503
    2007
    0.000000
    0.000000
    1.598661
    0.878678
    2.477339
    2006
    0.000000
    0.000000
    1.591802
    0.907371
    2.499173
    2005
    0.000000
    0.000000
    1.777870
    0.914297
    2.692167
    2004
    0.000000
    0.000000
    1.485508
    0.881354
    2.366862
    2003
    0.000000
    0.000000
    1.792095
    1.078360
    2.870455
    2002
    0.000000
    0.000000
    1.987727
    1.341472
    3.329199
    2001
    0.000000
    0.000000
    2.150484
    1.363361
    3.513845
    2000
    0.000000
    0.000000
    2.262116
    1.068609
    3.330725
    1999
    0.000000
    3.100287
    2.378897
    1.083807
    6.562991
    1998
    0.000000
    1.452839
    2.260231
    0.864815
    4.577885
    1997
    0.000000
    0.442166
    2.262214
    0.780409
    3.484789
    1996
    0.000000
    0.000000
    0.497075
    0.206950
    0.704025
  • Production , sum wellbores

    Production , sum wellbores
    Month
    Gross - oil
    [mill Sm3]
    Gross - gas
    [bill Sm3]
    Gross - condensate
    [mill Sm3]
    Gross - oil equivalents
    [mill Sm3]
    Sum
    0.000000
    159.853971
    58.318101
    218.172072
    2024
    0.000000
    1.365790
    0.329336
    1.695126
    2023
    0.000000
    2.049841
    0.481430
    2.531271
    2022
    0.000000
    1.447347
    0.327793
    1.775140
    2021
    0.000000
    2.021442
    0.589222
    2.610664
    2020
    0.000000
    2.598536
    0.869375
    3.467911
    2019
    0.000000
    3.137717
    1.076675
    4.214392
    2018
    0.000000
    3.540562
    1.271819
    4.812381
    2017
    0.000000
    3.834962
    1.326489
    5.161451
    2016
    0.000000
    4.081875
    1.298529
    5.380404
    2015
    0.000000
    4.595562
    1.521516
    6.117078
    2014
    0.000000
    4.766599
    1.628883
    6.395482
    2013
    0.000000
    5.701245
    1.995396
    7.696641
    2012
    0.000000
    6.499735
    2.399668
    8.899403
    2011
    0.000000
    7.364734
    2.610305
    9.975039
    2010
    0.000000
    6.808349
    1.985290
    8.793639
    2009
    0.000000
    7.781216
    2.273990
    10.055206
    2008
    0.000000
    7.245267
    2.096962
    9.342229
    2007
    0.000000
    8.264823
    2.632734
    10.897557
    2006
    0.000000
    7.731353
    2.638590
    10.369943
    2005
    0.000000
    7.920101
    2.861307
    10.781408
    2004
    0.000000
    6.573658
    2.521213
    9.094871
    2003
    0.000000
    7.783426
    3.049355
    10.832781
    2002
    0.000000
    7.962776
    3.344068
    11.306844
    2001
    0.000000
    8.192885
    3.565225
    11.758110
    2000
    0.000000
    7.654225
    3.472608
    11.126833
    1999
    0.000000
    7.550115
    3.500811
    11.050926
    1998
    0.000000
    6.988436
    3.057683
    10.046119
    1997
    0.000000
    6.832400
    2.931779
    9.764179
    1996
    0.000000
    1.558994
    0.660050
    2.219044
  • Production – charts

    Production – charts
    Graph Net oe
    Production – charts
    Graph Net oil
    Production – charts
    Graph Net gas
    Production – charts
    Graph Net gas
    Production – charts
    Graph Net NGL
    Production – charts
    Graph Water
    Any produced water is only included after 1.1.2000
  • Wellbores – exploration

    Wellbores – exploration
    Wellbore name
    Entered date
    Completed date
    Purpose
    Status
    Content
    05.09.1974
    19.12.1974
    WILDCAT
    P&A
    GAS/CONDENSATE
    10.10.1977
    29.11.1977
    APPRAISAL
    P&A
    SHOWS
    01.04.1982
    09.06.1982
    APPRAISAL
    P&A
    GAS/CONDENSATE
    24.02.1977
    30.05.1977
    APPRAISAL
    P&A
    OIL/GAS
    12.04.1978
    17.06.1978
    APPRAISAL
    P&A
    GAS/CONDENSATE
    17.12.1978
    03.04.1979
    APPRAISAL
    P&A
    SHOWS
    04.04.1979
    14.06.1979
    APPRAISAL
    P&A
    GAS/CONDENSATE
    19.11.1979
    11.04.1980
    APPRAISAL
    P&A
    GAS/CONDENSATE
    07.05.1980
    07.09.1980
    APPRAISAL
    P&A
    DRY
    26.12.1980
    29.04.1981
    APPRAISAL
    P&A
    GAS/CONDENSATE
    05.03.1981
    25.05.1981
    APPRAISAL
    P&A
    GAS/CONDENSATE
    22.11.1981
    27.02.1982
    APPRAISAL
    SUSPENDED
    GAS/CONDENSATE
    29.03.1982
    27.04.1982
    APPRAISAL
    P&A
    GAS/CONDENSATE
    23.03.1998
    23.05.1998
    APPRAISAL
    P&A
    SHOWS
  • Wellbores – development

    Wellbores – development
    Wellbore name
    Entered date
    Completed date
    Purpose
    Content
    16.07.2009
    02.11.2009
    PRODUCTION
    GAS/CONDENSATE
    24.11.2009
    01.03.2010
    PRODUCTION
    GAS/CONDENSATE
    27.01.2000
    24.02.2000
    PRODUCTION
    GAS
    02.07.1997
    26.11.1997
    PRODUCTION
    GAS
    22.10.2017
    11.12.2017
    PRODUCTION
    GAS/CONDENSATE
    26.11.1995
    28.01.1996
    PRODUCTION
    GAS/CONDENSATE
    05.02.1996
    25.03.1996
    PRODUCTION
    GAS
    28.03.1996
    08.06.1996
    PRODUCTION
    GAS
    30.03.2010
    26.06.2010
    OBSERVATION
    NOT APPLICABLE
    27.10.2010
    02.12.2010
    OBSERVATION
    NOT APPLICABLE
    07.12.2010
    25.12.2010
    OBSERVATION
    NOT APPLICABLE
    28.12.2010
    20.01.2011
    OBSERVATION
    NOT APPLICABLE
    22.01.2011
    03.02.2011
    PRODUCTION
    GAS
    02.09.1995
    17.10.1995
    PRODUCTION
    GAS
    15.03.1998
    30.06.1998
    PRODUCTION
    GAS
    13.05.2000
    12.08.2000
    PRODUCTION
    NOT APPLICABLE
    30.08.1996
    07.12.1996
    PRODUCTION
    GAS
    PRODUCTION
    23.10.1995
    23.11.1995
    PRODUCTION
    GAS
    02.01.2018
    18.01.2018
    PRODUCTION
    GAS/CONDENSATE
    23.04.1997
    20.06.1997
    PRODUCTION
    GAS/CONDENSATE
    28.01.1999
    19.06.1999
    PRODUCTION
    GAS
    15.09.2017
    07.10.2017
    PRODUCTION
    GAS/CONDENSATE
    07.03.2000
    29.03.2000
    PRODUCTION
    GAS
    01.12.1997
    30.10.1998
    PRODUCTION
    GAS
    02.12.1998
    10.01.1999
    PRODUCTION
    GAS
    29.12.1996
    26.03.1997
    PRODUCTION
    GAS
    31.08.2003
    26.10.2003
    PRODUCTION
    GAS
    26.08.2003
    13.12.2003
    PRODUCTION
    GAS
    19.08.2003
    06.11.2003
    PRODUCTION
    GAS
    01.02.2004
    19.03.2004
    PRODUCTION
    GAS
    15.11.2021
    15.12.2021
    PRODUCTION
    GAS
  • Wellbores – other

    Wellbores – other
    Wellbore name
    Entered date
    Completed date
    Purpose
    Status