Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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22.12.2024 - 01:25
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2/9-6 S

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  • General information
    General information
    Attribute Value
    Wellbore name
    Official name of wellbore based on Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    2/9-6 S
    Type
    Wellbore type. Legal values: EXPLORATION, DEVELOPMENT, OTHER (see 'Purpose' for more information)
    EXPLORATION
    Purpose
    Final classification of the wellbore.

    Legal values for exploration wellbores:
    WILDCAT, APPRAISAL, WILDCAT-CCS, APPRAISAL-CCS.

    Legal values for development wellbores:
    OBSERVATION, PRODUCTION, INJECTION, INJECTION-CCS, OBSERVATION-CCS.

    Legal values for other wellbores:
    SOIL DRILLING (drilling in connection with track surveys and other subsurface surveys to investigate the soil conditions prior to placement of facilities),
    SHALLOW GAS (drilling to investigate shallow gas before the first 'real' drilling on the location),
    PILOT (drilling to investigate the geology and fluid connectors for location of the main wellbore),
    SCIENTIFIC (drilling according to Law of Scientific research and exploration),
    STRATIGRAPHIC (driling according to Law of Petroleum activities §2-1).
    WILDCAT
    Status
    Status for the wellbore. Legal values are:

    BLOWOUT: A blowout has occurred in the well.
    CLOSED: A development wellbore that has been closed in a shorter or longer periode. Also applies to development wellbores where drilling is completed, but production/injection has not yet been reported.
    DRILLING: The well is in the drilling phase - can be active drilling, logging, testing or plugging,
    JUNKED: The drilling operation has been terminated due to technical problems.
    P&A: Exploration: The well is plugged and abandoned, and can not be reentered for further use. Development wells: The production/injection from/to the well is stopped and the well is plugged. The wellhead is removed or else made unavailable for further well operations.
    PLUGGED: The wellbore has been plugged, but the upper parts of the wellbore can be re-used. A sidetrack might be drilled at a later stage.
    PRODUCING: It was produced from the wellbore at the time of the operators last monthly report to the Norwegian Offshore Directorate.
    INJECTING: It was injected to the wellbore at the time of the operators last monthly report to the Norwegian Offshore Directorate.
    PREDRILLED: The upper part of the well has been drilled, usually as part of a batch-drilling campaign covering several wellbores.
    RE-CLASS TO DEV: Exploration wellbore that is reclassified to a development wellbore.
    RE-CLASS TO TEST: Exploration wellbore that is reclassified to test production.
    SUSPENDED: The drilling operation in the wellbore has been temporarily stopped. The current plan is to continue drilling later on.
    P&A
    Press release
    Multilateral
    Indicator telling if the parent well is multilateral, meaning it has more than one branch radiating from the main borehole. Example of legal values: YES, NO. See also Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    NO
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    Main area
    Name of the area on the Norwegian Continental Shelf where the wellbore is located. Legal values: BARENTS SEA, NORWEGIAN SEA, NORTH SEA.
    NORTH SEA
    Well name
    Official name of the parent well for the wellbore based on Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    2/9-6
    Production licence
    Official designation of the production licence the wellbore was drilled or planned to be drilled from ( well head posistion).
    Drilling operator
    Name of the licensee starting the drilling operation on behalf of the active production license (well head position). This will usually equal the operator of the production license.
    MOL Norge AS
    Drill permit
    The drilling permit number together with the version of the drilling permit as stated in the drilling permit granted by the Norwegian Offshore Directorate.
    1840-L
    Drilling facility
    Norwegian Offshore Directorate's name of the facility which the wellbore was drilled from.
    Drilling days
    Number of days from wellbore entry to wellbore completion.
    39
    Entered date
    The date when he wellbore was spudded. For sidetracks: The date when new formation was drilled by kicking off from the mother-wellbore,
    08.01.2021
    Completed date
    Exploration wellbores from moveable facilities:
    For floating facilities - date when anchor handling is started. For jackups - date the jacking-down started. Exploration wellbores from fixed facilities and all development wellbores:
    Date when the wellbore is at total depth, and last casing, liner or screen is set. In case of immediate plugging of the wellbore, completed date equals the date the last plug i set in the wellbore.
    Date when the wellbore is at total depth, and last casing, liner or screen is set. In case of immediate plugging of the wellbore, completed date equals the date the last plug i set in the wellbore.
    15.02.2021
    Release date
    Date when raw data which has been reported to the authorities from the wellbore is not confidential any longer. Normally 2 years after finishing the drilling. May be earlier if the area of the production license is relinquished.
    07.01.2022
    Plugged and abondon date
    Date when the P&A-operations of the wellbore was finished, as reported by the operator to the Norwegian Offshore Directorate throught DDRS (Daily Drilling Reporting System). Only applied once pr. wellhead/surface location.
    15.02.2021
    Publication date
    Date quality control of the wellbore information was completed, so it can be published on the internet as a 'Well Data Summary Sheet' wellbore with more information available than other wellbores.
    07.01.2022
    Purpose - planned
    Pre-drill purpose of the wellbore. Legal values for exploration wellbores: WILDCAT, APPRAISAL, WILDCAT-CCS, APPRAISAL-CCS. Example of legal values for development wellbores: OBSERVATION, PRODUCTION, INJECTION.
    WILDCAT
    Content
    For exploration wellbores, status of discovery.

    Legal values:
    DRY, SHOWS (trace amounts of hydrocarbons), GAS, GAS/CONDENSATE, OIL or OIL/GAS.
    SHOWS (GAS SHOWS, OIL SHOWS or OIL/GAS SHOWS) are detected as fluorescent cut (organic extract), petroleum odour, or visual stain on cuttings or cores, or as increased gas reading on the mud-loggers gas detection equipment.
    Legal values for WILDCAT-CCS and APPRAISAL-CCS: WATER

    For development wellbores, type of produced/injected fluid.
    Legal values:
    WATER, CUTTINGS, NOT AVAILABLE, OIL, GAS/CONDENSATE, OIL/GAS, CO2, GAS, WATER/GAS, NOT APPLICABLE.
    SHOWS
    Discovery wellbore
    Indicator which tells if the wellbore made a new discovery. Legal values: YES, NO. Prior to press-release or other information regarding drilling results, the indicator will be “NO” as a default.
    NO
    Kelly bushing elevation [m]
    Elevation of the rotary kelly bushing (RKB) above mean sea level.
    55.8
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    70.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    4330.0
    Final vertical depth (TVD) [m RKB]
    Vertical elevation from total depth to kelly bushing. Shown only for released wells. Referred to as true vertical depth (TVD).
    4305.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    12.2
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    141
    Oldest penetrated age
    Age (according to Geologic Time Scale 2004 by F. M. Gradstein, et al. (2004)) of the oldest penetrated formation. May differ from age at TD for example in deviated wellbores. Examples of legal values: CRETACEOUS, EARLY CRETACEOUS, LATE JURASSIC, EARLY PERMIAN, EARLY TRIASSIC, EOCENE.
    LATE JURASSIC
    Oldest penetrated formation
    Name of the oldest lithostratigraphic unit penetrated by the wellbore. Shown only for released wells. In most wellbores this is formation or group at total depth. May differ from formation or group at TD for example in wellbores drilled with high deviation or through faults. Examples of legal values: AMUNDSEN FM, BALDER FM, BASEMENT, BLODØKS FM, BRYNE FM, BURTON FM, COOK FM, DRAKE FM, DRAUPNE FM, EKOFISK FM, DUNLIN GP.
    FARSUND FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    56° 21' 35.17'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    3° 53' 5.15'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    6246612.18
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    554668.93
    UTM zone
    Universal Transverse Mercator zone. Examples of legal values: 31, 32, 33, 34.
    31
    NPDID wellbore
    Norwegian Offshore Directorate's unique id for the wellbore.
    9191

  • Wellbore history
    General
    Well 2/9-6 S was drilled to test the Eidsvoll prospect on the Piggvar Terrace in the southern North Sea. The primary objective was to test the hydrocarbon potential in Late Jurassic sandstones.
    Operations and results
    A 9 7/8" pilot hole was drilled to 1010 m. No shallow gas or water flow was observed. Wildcat well 2/9-6 S was spudded with the jack-up installation Maersk Integrator on 8 January 2021 and drilled to TD at 4330 m (4305 m TVD) in the Late Jurassic Farsund Formation. Operations proceeded without significant problems. The well was drilled with seawater and hi-vis pills down to 1010 m, and with RheGuard Prime oil-based mud from 1010 m to TD.
    The Tyne Group was encountered at 3890 m (3865.8 m TVD) with the target Eidsvoll sandstone unit (Mandal fm)on top down to 4143 m (4118.8 m TVD). The unit is dated Volgian to late Ryazanian. Approximately 121 metres of this was reservoir rocks with poor to moderate reservoir properties. Oil shows in the form of direct and cut fluorescence were recorded in this unit from 3896 to 4283 m. Traces of petroleum were registered in the upper part of the unit where some live hydrocarbons were recorded by MDT fluid scanning. Hydrocarbon odour was noted on the cores and HCS core scanning indicated a light to medium oil mostly migrated, but also generated locally from in-situ shales. Else, no oil shows were seen in the well.
    Two cores were cut in succession from 3940.2 to 4012.8 m with 100% recovery. MDT fluid scanning was undertaken at 3912.61 m (mud filtrate and live hydrocarbons) and a water sample was taken at 3990.48 m.
    The well was permanently abandoned on 15 February 2021 as a dry well with shows.
    Testing
    No drill stem test was performed.

  • Cuttings at the Norwegian Offshore Directorate
    Cuttings at the Norwegian Offshore Directorate
    Cuttings available for sampling?
    YES
    Cuttings at the Norwegian Offshore Directorate
    Cutting sample, top depth [m]
    Cutting samples, bottom depth [m]
    1020.00
    4330.00

  • Cores at the Norwegian Offshore Directorate
    Cores at the Norwegian Offshore Directorate
    Comments
    B-cutt på plass SS-12-A.
    Cores at the Norwegian Offshore Directorate
    Core sample number
    Core sample - top depth
    Core sample - bottom depth
    Core sample depth - uom
    1
    3940.2
    3976.8
    [m ]
    2
    3976.8
    4012.8
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    72.6
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    YES

  • Casing and leak–off tests
    Casing and leak–off tests
    Casing type
    Casing diam.
    [inch]
    Casing depth
    [m]
    Hole diam.
    [inch]
    Hole depth
    [m]
    LOT/FIT mud eqv.
    [g/cm3]
    Formation test type
    INTERM.
    22
    1003.5
    26
    1010.0
    1.73
    LOT
    INTERM.
    13 3/8
    1898.5
    16
    1905.0
    1.79
    FIT
    INTERM.
    9 7/8
    3838.8
    12 1/4
    3846.0
    1.90
    FIT
    OPEN HOLE
    4330.0
    8 1/2
    4330.0
    0.00

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    LWD - DIR PWD GR RES
    127
    1010
    LWD - DIR PWD GR RES FPWD ECD -
    1905
    4330
    LWD - DIR PWD GR RES SON
    127
    1905
    LWD - SON SEIS DEN NEU
    1905
    4330
    MDT CMR GR
    3850
    4295
    NEXT HNGS MSIP
    0
    0

  • Lithostratigraphy

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    168
    1.03
    4.0
    Water
    1010
    1.30
    4.0
    Water
    1013
    1.39
    4.2
    Oil
    1905
    1.55
    4.7
    Oil
    3105
    1.60
    7.6
    Oil
    3492
    1.55
    4.5
    Oil
    3781
    1.64
    5.0
    Oil
    3862
    1.70
    4.7
    Oil
    4330
    1.70
    7.5
    Oil

  • Thin sections at the Norwegian Offshore Directorate
    Thin sections at the Norwegian Offshore Directorate
    Depth
    Unit
    3941.95
    [m ]
    3948.95
    [m ]
    3954.95
    [m ]
    3964.95
    [m ]
    3966.95
    [m ]
    3971.50
    [m ]
    3972.62
    [m ]
    3973.32
    [m ]
    3974.07
    [m ]
    3975.33
    [m ]
    3975.82
    [m ]
    3976.20
    [m ]
    3977.34
    [m ]
    3977.58
    [m ]
    3978.36
    [m ]
    3978.80
    [m ]
    3979.62
    [m ]
    3980.28
    [m ]
    3980.66
    [m ]
    3981.25
    [m ]
    3982.25
    [m ]
    3982.80
    [m ]
    3984.32
    [m ]
    3984.56
    [m ]
    3985.19
    [m ]
    3985.56
    [m ]
    3986.25
    [m ]
    3986.75
    [m ]
    3987.25
    [m ]
    3988.02
    [m ]
    3988.75
    [m ]
    3989.60
    [m ]
    3989.80
    [m ]
    3990.25
    [m ]
    3990.75
    [m ]
    3991.50
    [m ]
    3992.02
    [m ]
    3992.50
    [m ]
    3992.75
    [m ]
    3993.40
    [m ]
    3994.25
    [m ]
    3994.75
    [m ]
    3995.25
    [m ]
    3995.75
    [m ]
    3996.02
    [m ]
    3997.06
    [m ]
    3997.50
    [m ]
    3998.43
    [m ]
    3998.82
    [m ]
    3999.25
    [m ]
    4000.45
    [m ]
    4000.85
    [m ]
    4001.25
    [m ]
    4002.02
    [m ]
    4002.56
    [m ]
    4003.50
    [m ]
    4003.83
    [m ]
    4004.25
    [m ]
    4004.78
    [m ]
    4005.40
    [m ]
    4006.80
    [m ]
    4007.20
    [m ]
    4007.60
    [m ]
    4008.25
    [m ]
    4008.75
    [m ]
    4009.25
    [m ]
    4010.02
    [m ]
    4010.75
    [m ]
    4011.25
    [m ]
    4011.95
    [m ]
    4012.75
    [m ]
    3913.00
    [m ]
    3916.00
    [m ]
    3934.00
    [m ]
    4024.00
    [m ]
    4036.00
    [m ]
    4045.00
    [m ]
    4066.00
    [m ]
    4090.00
    [m ]
    4129.00
    [m ]
    3956.95
    [m ]
    3931.00
    [m ]