Factpages Norwegian petroleum directorate
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OSELVAR

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  • General information

    General information
    Attribute Value
    Field name
    Official field name
    OSELVAR
    Factmaps in new window
    Current activity status
    Current activity status of the field. Example of legal values: SHUT DOWN, PRODUCING, PDO APPROVED
    Shut down
    Discovery wellbore
    Name of the wellbore which proved the field.
    Discovery year.
    The year the field was discovered
    1991
    Main area
    Main NCS area. Example of legal values: NORTH SEA, NORWEGIAN SEA, BARENTS SEA
    North sea
    Main supply base
    Main supply base
    NPDID field
    NPD's unique id for fields
    5506919
  • Picture

    Picture
    OSELVAR Field
  • Discoveries included

    Discoveries included
    Discovery name
  • Activity status – history

    Activity status – history
    Status
    Status from
    Status to
    Shut down
    01.04.2018
    Producing
    14.04.2012
    31.03.2018
    Approved for production
    19.06.2009
    13.04.2012
  • Located in

    Located in
    Block name
    Prod. licence
    1/3
    1/2
  • Owner – current

    Owner – current
    Owner kind
    Owner name
  • Operatorship – current

    Operatorship – current
    Company name
  • Licensees – current

    Licensees – current
    Company name
    Nation code
    Company share [%]
  • The NPD estimate for reserves (Norwegian share)

    The NPD estimate for reserves (Norwegian share)
    Valid date:
    31.12.2021
    The NPD 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]
    0.68
    0.40
    0.02
    0.00
    1.12
    The NPD 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]
    6.52
    3.68
    2.16
    2.31
    The NPD 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]
    0.00
    0.00
    0.00
    0.00
    0.00
  • Description

    Description
    Type
    Text
    Date updated
    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. Production started in 2012.
    25.04.2019
    Reservoir
    Oselvar produced oil and gas from sandstone of Paleocene age in the Forties Formation. The reservoir has a gas cap and lies at a depth of 2,900-3,250 metres.
    25.04.2019
    Recovery
    The field was produced by pressure depletion.
    25.04.2019
    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.
    25.04.2019
    Status
    The field was shut down in 2018. According to the formal disposal resolution, decommissioning must be completed by the end of 2022.
    11.02.2020
  • Investments (expected)

    Investments (expected)
  • Investments (historical)

    Investments (historical)
    Investments
    [mill NOK nominal values]
    Sum
    4433
    2020
    0
    2019
    0
    2018
    0
    2017
    0
    2016
    0
    2015
    0
    2014
    0
    2013
    0
    2012
    898
    2011
    1852
    2010
    1181
    2009
    502
  • 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
    0.677026
    0.000000
    0.000000
    0.037678
    0.714704
    2019
    0.000000
    0.000000
    0.000000
    0.000000
    0.000000
    2018
    0.015672
    0.000000
    0.000000
    0.000950
    0.016622
    2017
    0.070093
    0.000000
    0.000000
    0.004573
    0.074666
    2016
    0.074391
    0.000000
    0.000000
    0.004773
    0.079164
    2015
    0.089809
    0.000000
    0.000000
    0.006032
    0.095841
    2014
    0.125905
    0.000000
    0.000000
    0.007100
    0.133005
    2013
    0.149768
    0.000000
    0.000000
    0.007194
    0.156962
    2012
    0.151388
    0.000000
    0.000000
    0.007056
    0.158444
  • 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
    0.774296
    0.421849
    0.000000
    1.196145
    2019
    0.000000
    0.000000
    0.000000
    0.000000
    2018
    0.018306
    0.013499
    0.000000
    0.031805
    2017
    0.082603
    0.061682
    0.000000
    0.144285
    2016
    0.087384
    0.059804
    0.000000
    0.147188
    2015
    0.105399
    0.064168
    0.000000
    0.169567
    2014
    0.144317
    0.077484
    0.000000
    0.221801
    2013
    0.167821
    0.075443
    0.000000
    0.243264
    2012
    0.168466
    0.069769
    0.000000
    0.238235
  • 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 name
    Entered date
    Completed date
    Purpose
    Status
    Content
    11.03.1991
    22.06.1991
    WILDCAT
    P&A
    GAS/CONDENSATE
    13.02.1995
    25.05.1995
    APPRAISAL
    P&A
    OIL
    25.10.2007
    07.01.2008
    APPRAISAL
    P&A
    OIL/GAS
    07.01.2008
    13.02.2008
    APPRAISAL
    P&A
    OIL/GAS
  • Wellbores – development

    Wellbores – development
    Wellbore name
    Entered date
    Completed date
    Purpose
    Content
    22.07.2011
    21.09.2011
    PRODUCTION
    OIL
    18.11.2011
    19.01.2012
    PRODUCTION
    OIL
    04.03.2012
    14.05.2012
    PRODUCTION
    OIL
  • Wellbores – other

    Wellbores – other
    Wellbore name
    Entered date
    Completed date
    Purpose
    Status