Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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10.12.2024 - 01:27
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VALHALL

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  • General information

    General information
    Attribute Value
    Field name
    Official field name
    VALHALL
    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
    1975
    Main area
    Main NCS area. Example of legal values: NORTH SEA, NORWEGIAN SEA, BARENTS SEA
    North sea
    Main supply base
    Main supply base
    Tananger
    NPDID field
    Norwegian Offshore Directorate's unique id for fields
    43548
  • Picture

    Picture
    VALHALL Field
  • Discoveries included

    Discoveries included
    Discovery name
  • Activity status — history

    Activity status — history
    Status
    Status from
    Status to
    Producing
    01.10.1982
    Approved for production
    02.06.1977
    30.09.1982
  • Located in

    Located in
    Block name
    Prod. licence
    2/11
    2/8
  • PDO – Plan for Development and Operations

    PDO – Plan for Development and Operations
    Date PDO approved
    Description
    Type
    28.06.2023
    Endret PUD Vallhall (PWP) behandlet i Stortinget 5.6.2023 og godkjent i brev av 28.6.2023
    Changed PDO
    23.03.2018
    Valhall Flanke Vest
    PDO
    14.06.2007
    Valhall videreutvikling Valhall PH av Stortinget
    PDO
    09.11.2001
    Vallhall-flanker av Kongen i Statsråd
    PDO
    03.11.2000
    Valhall vanninjeksjon av Kongen i Statsråd
    PDO
    02.06.1995
    Valhall WP av Kongen i Statsråd
    PDO
    02.06.1977
    behandlet i Stortinget
    PDO
  • Ownership — full history

    Ownership — full history
    Owner kind
    Owner name
    Ownership from date
    Ownership to date
    BUSINESS ARRANGEMENT AREA
    28.09.1982
    PRODUCTION LICENSE
    02.06.1977
    27.09.1982
  • Operatorship — full history

    Operatorship — full history
    Company name
    Operatorship from
    Operatorship to
    30.11.2016
    12.03.2002
    29.11.2016
    23.12.1999
    11.03.2002
    02.06.1977
    22.12.1999
  • Licensees — full history

    Licensees — full history
    Company name
    Nation code
    Company share [%]
    Date licensee from
    Date licensee to
    NO
    90.000000
    22.12.2017
    NO
    10.000000
    22.12.2017
    NO
    64.046880
    30.11.2016
    21.12.2017
    NO
    35.953130
    30.11.2016
    21.12.2017
    NO
    64.046880
    01.01.2010
    29.11.2016
    NO
    35.953130
    01.01.2010
    29.11.2016
    NO
    28.093770
    26.06.2006
    31.12.2009
    NO
    28.093760
    26.06.2006
    31.12.2009
    NO
    28.093760
    26.06.2006
    31.12.2009
    NO
    15.718710
    26.06.2006
    31.12.2009
    NO
    28.093770
    06.05.2003
    25.06.2006
    NO
    28.093760
    06.05.2003
    25.06.2006
    NO
    28.093760
    06.05.2003
    25.06.2006
    NO
    15.718710
    06.05.2003
    25.06.2006
    NO
    28.093770
    12.03.2002
    05.05.2003
    NO
    28.093760
    12.03.2002
    05.05.2003
    NO
    28.093760
    12.03.2002
    05.05.2003
    NO
    15.718710
    12.03.2002
    05.05.2003
    NO
    28.093770
    31.12.2001
    11.03.2002
    NO
    28.093760
    31.12.2001
    11.03.2002
    NO
    28.093760
    31.12.2001
    11.03.2002
    NO
    15.718710
    31.12.2001
    11.03.2002
    NO
    28.093770
    24.07.2000
    30.12.2001
    NO
    28.093760
    24.07.2000
    30.12.2001
    NO
    28.093760
    24.07.2000
    30.12.2001
    NO
    15.718710
    24.07.2000
    30.12.2001
    NO
    28.093770
    23.12.1999
    23.07.2000
    NO
    28.093760
    23.12.1999
    23.07.2000
    NO
    28.093760
    23.12.1999
    23.07.2000
    NO
    15.718710
    23.12.1999
    23.07.2000
    NO
    28.093770
    25.02.1992
    22.12.1999
    NO
    28.093760
    25.02.1992
    22.12.1999
    NO
    28.093760
    25.02.1992
    22.12.1999
    NO
    15.718710
    25.02.1992
    22.12.1999
    NO
    28.093770
    14.04.1989
    24.02.1992
    NO
    28.093760
    14.04.1989
    24.02.1992
    NO
    28.093760
    14.04.1989
    24.02.1992
    NO
    15.718710
    14.04.1989
    24.02.1992
    NO
    28.093770
    28.09.1982
    13.04.1989
    NO
    28.093760
    28.09.1982
    13.04.1989
    NO
    28.093760
    28.09.1982
    13.04.1989
    NO
    15.718710
    28.09.1982
    13.04.1989
    NO
    28.333330
    02.06.1977
    27.09.1982
    NO
    28.333330
    02.06.1977
    27.09.1982
    NO
    28.333330
    02.06.1977
    27.09.1982
    NO
    15.000000
    02.06.1977
    27.09.1982
  • 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]
    158.52
    30.50
    6.02
    0.00
    200.46
    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]
    371.00
    0.00
    75.00
    0.00
    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]
    31.83
    6.08
    0.85
    0.00
    39.53
    Norwegian Offshore Directorate – estimate for reserves (Norwegian share)
  • Description

    Description
    Type
    Text
    Date updated
    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.
    14.12.2023
    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.
    14.12.2023
    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.
    28.02.2023
    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.
    28.02.2023
    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.
    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.
    48783
  • Investments (historical)

    Investments (historical)
    Investments
    [mill NOK nominal values]
    Sum
    97455
    2022
    2495
    2021
    3106
    2020
    4249
    2019
    7547
    2018
    3927
    2017
    1638
    2016
    246
    2015
    857
    2014
    2143
    2013
    3567
    2012
    6170
    2011
    4866
    2010
    7063
    2009
    8141
    2008
    6445
    2007
    3642
    2006
    1956
    2005
    1782
    2004
    1837
    2003
    3837
    2002
    3814
    2001
    3620
    2000
    1483
    1999
    829
    1998
    1471
    1997
    1470
    1996
    1109
    1995
    474
    1994
    212
    1993
    187
    1992
    299
    1991
    161
    1990
    93
    1989
    102
    1988
    232
    1987
    26
    1986
    269
    1985
    373
    1984
    356
    1983
    380
    1982
    1270
    1981
    1282
    1980
    1203
    1979
    807
    1978
    264
    1977
    156
  • 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
    130.528753
    24.679046
    0.000000
    7.844913
    163.052712
    2024
    1.478454
    0.246451
    0.000000
    0.098106
    1.823011
    2023
    2.005266
    0.343118
    0.000000
    0.125584
    2.473968
    2022
    2.030741
    0.351060
    0.000000
    0.125980
    2.507781
    2021
    2.398788
    0.404238
    0.000000
    0.153057
    2.956083
    2020
    2.640579
    0.414365
    0.000000
    0.172823
    3.227767
    2019
    2.045916
    0.316130
    0.000000
    0.108579
    2.470625
    2018
    1.862756
    0.307135
    0.000000
    0.087951
    2.257842
    2017
    1.769424
    0.305186
    0.000000
    0.084986
    2.159596
    2016
    1.997018
    0.370142
    0.000000
    0.099626
    2.466786
    2015
    2.402788
    0.436287
    0.000000
    0.123347
    2.962422
    2014
    2.225157
    0.381262
    0.000000
    0.114809
    2.721228
    2013
    1.768320
    0.237091
    0.000000
    0.075787
    2.081198
    2012
    0.963898
    0.134220
    0.000000
    0.043472
    1.141590
    2011
    1.642276
    0.249556
    0.000000
    0.074233
    1.966065
    2010
    2.090180
    0.338291
    0.000000
    0.103830
    2.532301
    2009
    2.265921
    0.349154
    0.000000
    0.111566
    2.726641
    2008
    2.810897
    0.485877
    0.000000
    0.144120
    3.440894
    2007
    3.411159
    0.608351
    0.000000
    0.165978
    4.185488
    2006
    4.041168
    0.772453
    0.000000
    0.210128
    5.023749
    2005
    4.829780
    0.956485
    0.000000
    0.232096
    6.018361
    2004
    4.772630
    0.967659
    0.000000
    0.233984
    5.974273
    2003
    4.155164
    0.632243
    0.000000
    0.197092
    4.984499
    2002
    4.180522
    0.875037
    0.000000
    0.199655
    5.255214
    2001
    4.362804
    0.882334
    0.000000
    0.212904
    5.458042
    2000
    4.577951
    0.889374
    0.000000
    0.221597
    5.688922
    1999
    5.310248
    1.036055
    0.000000
    0.258336
    6.604639
    1998
    5.168462
    0.964830
    0.000000
    0.241490
    6.374782
    1997
    4.526867
    0.940399
    0.000000
    0.251212
    5.718478
    1996
    4.034600
    0.880080
    0.000000
    0.226624
    5.141304
    1995
    3.489873
    0.787530
    0.000000
    0.190653
    4.468056
    1994
    3.154878
    0.667406
    0.000000
    0.165459
    3.987743
    1993
    3.536684
    0.799865
    0.000000
    0.190539
    4.527088
    1992
    4.046269
    0.927589
    0.000000
    0.228374
    5.202232
    1991
    3.744195
    0.818378
    0.000000
    0.248815
    4.811388
    1990
    4.156492
    0.918810
    0.000000
    0.375098
    5.450400
    1989
    4.238787
    0.841652
    0.000000
    0.376097
    5.456536
    1988
    3.698722
    0.709489
    0.000000
    0.334486
    4.742697
    1987
    3.478145
    0.621839
    0.000000
    0.335952
    4.435936
    1986
    2.538380
    0.429565
    0.000000
    0.277149
    3.245094
    1985
    2.781179
    0.468009
    0.000000
    0.312955
    3.562143
    1984
    2.843319
    0.512731
    0.000000
    0.241653
    3.597703
    1983
    0.966687
    0.101320
    0.000000
    0.066671
    1.134678
    1982
    0.085409
    0.000000
    0.000000
    0.002060
    0.087469
  • 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
    133.548390
    28.978558
    0.000000
    162.526948
    2024
    1.591544
    0.249699
    0.000000
    1.841243
    2023
    2.166008
    0.251475
    0.000000
    2.417483
    2022
    2.116368
    0.210921
    0.000000
    2.327289
    2021
    2.336608
    0.485638
    0.000000
    2.822246
    2020
    2.567666
    0.500738
    0.000000
    3.068404
    2019
    1.978421
    0.383393
    0.000000
    2.361814
    2018
    1.792917
    0.370839
    0.000000
    2.163756
    2017
    1.702955
    0.364073
    0.000000
    2.067028
    2016
    1.922898
    0.440293
    0.000000
    2.363191
    2015
    2.298008
    0.523266
    0.000000
    2.821274
    2014
    2.132299
    0.461254
    0.000000
    2.593553
    2013
    1.709616
    0.319893
    0.000000
    2.029509
    2012
    0.933096
    0.206385
    0.000000
    1.139481
    2011
    1.582693
    0.366162
    0.000000
    1.948855
    2010
    2.025685
    0.484655
    0.000000
    2.510340
    2009
    2.201829
    0.483844
    0.000000
    2.685673
    2008
    2.767937
    0.649451
    0.000000
    3.417388
    2007
    3.432316
    0.811624
    0.000000
    4.243940
    2006
    4.051338
    0.989420
    0.000000
    5.040758
    2005
    4.729288
    1.155858
    0.000000
    5.885146
    2004
    4.677718
    1.159641
    0.000000
    5.837359
    2003
    4.075083
    1.103371
    0.000000
    5.178454
    2002
    4.107943
    1.088875
    0.000000
    5.196818
    2001
    4.303686
    1.108302
    0.000000
    5.411988
    2000
    4.497415
    1.107611
    0.000000
    5.605026
    1999
    5.599752
    1.084667
    0.000000
    6.684419
    1998
    5.440342
    1.023241
    0.000000
    6.463583
    1997
    4.865239
    1.006671
    0.000000
    5.871910
    1996
    4.241316
    0.936924
    0.000000
    5.178240
    1995
    3.661432
    0.845184
    0.000000
    4.506616
    1994
    3.309156
    0.721701
    0.000000
    4.030857
    1993
    3.699218
    0.844957
    0.000000
    4.544175
    1992
    4.230677
    0.973072
    0.000000
    5.203749
    1991
    3.935877
    0.875703
    0.000000
    4.811580
    1990
    4.491225
    0.996696
    0.000000
    5.487921
    1989
    4.574407
    0.917468
    0.000000
    5.491875
    1988
    4.014561
    0.802081
    0.000000
    4.816642
    1987
    3.788829
    0.716244
    0.000000
    4.505073