Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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22.11.2024 - 09:09
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34/8-4 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.
    34/8-4 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
    Factmaps in new window
    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
    Field
    Name of the field the wellbore is related to.
    Discovery
    Name of the discovery the wellbore is related to.
    Well name
    Official name of the parent well for the wellbore based on Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    34/8-4
    Seismic location
    Position of spud location on seismic survey lines. SP: shotpoint.
    NH 8404-171/1171& SP. 10656
    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.
    Norsk Hydro Produksjon 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.
    659-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.
    186
    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,
    06.12.1990
    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.
    09.06.1991
    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.
    09.06.1993
    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.
    22.04.2005
    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
    Reentry
    Status whether the wellbore has been re-entered (YES) or not (NO). Re-entered wellbores are not included in the count when wellbores are presented in statistical overviews.
    NO
    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.
    GAS/CONDENSATE
    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.
    YES
    1st level with HC, age
    Age of lithostratigraphic unit, 1st level, where hydrocarbons were encountered. Examples of legal values: CRETACEOUS, EARLY CRETACEOUS, LATE JURASSIC, EOCENE. See also Norwegian Offshore Directorate bulletins.
    MIDDLE JURASSIC
    1st level with HC, formation
    Name of lithostartigraphic unit, 1st level, where hydrocarbons were encountered. Shown only for released wells. Examples of legal values: BASEMENT, COOK FM, EKOFISK FM, HEIMDAL FM, SANDNES FM, SOGNEFJORD FM, TARBERT FM, BRENT GP. See also Norwegian Offshore Directorate bulletins.
    RANNOCH FM
    2nd level with HC, age
    Age of lithostratigraphic unit, 2nd level, where hydrocarbons were encountered. Examples of legal values: CRETACEOUS, EARLY CRETACEOUS, LATE JURASSIC, EOCENE.
    LATE TRIASSIC
    2nd level with HC, formation
    Name of lithostartigraphic unit, 2nd level, where hydrocarbons were encountered. Shown only for released wells. Examples of legal values: BASEMENT, COOK FM, EKOFISK FM, HEIMDAL FM, SANDNES FM, SOGNEFJORD FM, TARBERT FM, BRENT GP.
    LUNDE FM
    Kelly bushing elevation [m]
    Elevation of the rotary kelly bushing (RKB) above mean sea level.
    23.0
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    309.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    4150.0
    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).
    3802.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    56.3
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    137
    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.
    TRIASSIC
    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.
    TEIST FM (INFORMAL)
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    61° 19' 29.58'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    2° 25' 18.67'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    6799274.11
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    469049.02
    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.
    1683

  • Wellbore history
    General
    Well 34/8-4 S is located on the Visund Field, A structure where previous wells 3/8-1, 3/8-3, and 3/8-3 A had proved hydrocarbons in the Brent Group. The main target in 34/8-4 S was the hydrocarbon potential in the Lomvi Formation on the A-structure. Secondary targets were the hydrocarbon potentials of the Statfjord and Lunde B/C formations on the A south compartment. Pressure measurement should be acquired from the Lunde- and Lomvi Formations in order to evaluate the sealing potential of the Middle to Late Triassic sequence. The well was designed for temporary abandonment and re-entry as a subsea producer. The well was planned as a deviated hole to penetrate top Statfjord, Lunde B/C and the Lomvi Formations within structural closure, leaving more than 10 mill Sm3 oil untested up-dip. Boulders could be encountered between 350 m and 395 m. Two intervals with possibility for shallow gas were identified at 446 m and 477 m.
    Operations and results
    Wildcat well 34/8-4 S was spudded with the semi-submersible installation Maersk Jutlander on 6 Desember 1991 and drilled to TD at 4150 m in rocks of Triassic age. Drilling started with an 8 1/2" pilot hole checking for shallow gas. No boulders or shallow gas was encountered. Significant technical problems were encountered during drilling of this well and one third of the total rig time was counted as down time. The longest period of down time occurred after TD in the 17 1/2" hole where 31.6 days were spent repairing the BOP and wellhead. The planned TD at 4478 m was not reached due to operational problems. The pipe was backed off at 3936 m and the borehole was logged from this depth and up to the 9 5/8" casing shoe. The well was drilled vertical down to ca 2310 m where it started to build angle up to 30 ° at ca 2680 m. From here to TD the deviation varied between 30 ° and 50 °.  The well was drilled with spud mud and seawater down to 1165 m, with KCl / polymer mud from 1165 m to 3781 m, and with a dispersed high-temperature tolerant mud system from 3781 m to TD.
    Hydrocarbons were encountered in the Brent Group, Rannoch sandstones, and in thickly developed Triassic sandstones of the Hegre Group's Lunde Formation. No fluid contacts were observed in either Groups. The Lomvi Formation proved to be water bearing. Oil shows on sandstones started at Top Brent Group, 2903 m, and ended at 3697 m in Late Triassic, Lunde Formation. One of the secondary targets, the Statfjord Formation, was not encountered in the well. A total of seventeen cores were cut: sixteen in the Lunde Formation and one in the Lomvi Formation. RFT formation pressures were obtained in five runs, three of which were cased hole RFT runs. A gas gradient was defined from pressures obtained in the Brent Group and a common hydrocarbon gradient of 0.045 bar/m (0.46 g/cc) could be inferred throughout the Lunde Formation. A total of 60 sidewall cores were requested in two runs and 37 were recovered. The well was suspended on 9 June 1992 a gas and condensate discovery in the Lunde Formation.
    Testing
    Five production tests were performed, four gas/condensate tests in the Lunde Formation and one gas test in the Rannoch Formation. Production test data quoted refer to maximum rates at the specified choke sizes.
    Test 1 was performed in the interval 3219.0 - 3241.0 in Lunde D. It flowed at a condensate rate of 441 Sm3/d and a gas rate of 410280 Sm3/d on a 15.87 mm choke. The GOR was 930 Sm3/Sm3. The condensate gravity was 0.782 g/cc and the gas gravity was 0.728 (air = l). The test produced 2.0 % CO2 and no H2S.
    Test 2 was aborted due to tool failure shortly after running the test string.
    Test 2A was performed in the interval 3133.0 - 3143.0 m in Lunde B/C. It flowed at a condensate rate of 754 Sm3/d and a gas rate of 605090 Sm3/d on a 17.46 mm choke. The GOR was 803 Sm3/Sm3. The condensate gravity was 0.788 g/cc and the gas gravity 0.734 (air = 1). The test produced 0.7 % CO2 and no H2S.
    With the test string still in position after Test 2A, Test 2B1 was initiated by perforating three additional intervals. However, it was aborted due to problems with the subsea test tree and lubricator valves.
    Test 2B2 perforated the four intervals 3132.5 - 3142.5 m, 3112.5 - 3127.5 m, 3094.5 -3104.5 m, and 3066.5 - 3082.0 m in Lunde B/C. It flowed at a condensate rate of 985 Sm3/d and a gas rate of 792950 Sm3/d on a 20.63 mm choke. The GOR was 805 Sm3/Sm3. The condensate gravity was 0.785 g/cc and the gas gravity 0.739 (air = l). The test produced 0.5 % CO2 and no H2S.
    Test 3 perforated the interval 3000.7 - 3017.7 m. It flowed at a condensate rate of 908 Sm3/d and a gas rate of 708500 Sm3/d on a 21.43 mm choke. The GOR was 781 Sm3/Sm3. The condensate gravity was 0.777 g/cc and the gas gravity 0.738 (air-1). The test produced 0.1 % CO2 and no H2S.
    Test 4 perforated the interval 2903.4 - 2917.4 m, top section of the Rannoch Formation. It flowed at a condensate rate of 205 Sm3/d and a gas rate of 480000 Sm3/d on a 25.40 mm choke. The GOR was 2418 Sm3/Sm3. The condensate gravity was 0.770 g/cc and the gas gravity 0.690 (air = l). The test produced 1.0% CO2 and 0.6 ppm H2 S.
    Note that for this well the "bottle depths" quoted for the oil samples available from the NPD are in m TVD MSL.

  • 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]
    1170.00
    4150.00

  • Cores at the Norwegian Offshore Directorate
    Cores at the Norwegian Offshore Directorate
    Core sample number
    Core sample - top depth
    Core sample - bottom depth
    Core sample depth - uom
    1
    3005.0
    3019.7
    [m ]
    2
    3067.0
    3084.6
    [m ]
    3
    3096.0
    3122.8
    [m ]
    4
    3123.5
    3142.6
    [m ]
    5
    3176.0
    3188.8
    [m ]
    6
    3190.0
    3207.6
    [m ]
    7
    3208.0
    3235.7
    [m ]
    8
    3255.0
    3272.4
    [m ]
    9
    3276.0
    3285.0
    [m ]
    10
    3292.0
    3317.7
    [m ]
    11
    3319.0
    3332.4
    [m ]
    12
    3333.0
    3358.5
    [m ]
    13
    3385.0
    3412.0
    [m ]
    14
    3412.0
    3438.8
    [m ]
    15
    3439.0
    3465.5
    [m ]
    16
    3466.0
    3485.5
    [m ]
    17
    4044.0
    4071.5
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    354.6
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    YES

  • Core photos
    Core photos
    Core photo at depth: 3005-3010m
    Core photo at depth: 3010-3015m
    Core photo at depth: 3015-3019m
    Core photo at depth: 3067-3072m
    Core photo at depth: 3072-3077m
    3005-3010m
    3010-3015m
    3015-3019m
    3067-3072m
    3072-3077m
    Core photo at depth: 3077-3082m
    Core photo at depth: 3082-3084m
    Core photo at depth: 3096-3101m
    Core photo at depth: 3101-3106m
    Core photo at depth: 3106-3111m
    3077-3082m
    3082-3084m
    3096-3101m
    3101-3106m
    3106-3111m
    Core photo at depth: 3111-3116m
    Core photo at depth: 3116-3121m
    Core photo at depth: 3121-3122m
    Core photo at depth: 3123-3128m
    Core photo at depth: 3128-3133m
    3111-3116m
    3116-3121m
    3121-3122m
    3123-3128m
    3128-3133m
    Core photo at depth: 3133-3138m
    Core photo at depth: 3138-3142m
    Core photo at depth: 3176-3181m
    Core photo at depth: 3181-3186m
    Core photo at depth: 3186-3188m
    3133-3138m
    3138-3142m
    3176-3181m
    3181-3186m
    3186-3188m
    Core photo at depth: 3190-3195m
    Core photo at depth: 3195-3200m
    Core photo at depth: 3200-3205m
    Core photo at depth: 3205-3207m
    Core photo at depth: 3208-3213m
    3190-3195m
    3195-3200m
    3200-3205m
    3205-3207m
    3208-3213m
    Core photo at depth: 3213-3218m
    Core photo at depth: 3218-3223m
    Core photo at depth: 3223-3228m
    Core photo at depth: 3228-3233m
    Core photo at depth: 3233-3235m
    3213-3218m
    3218-3223m
    3223-3228m
    3228-3233m
    3233-3235m
    Core photo at depth: 3255-3260m
    Core photo at depth: 3260-3265m
    Core photo at depth: 3265-3270m
    Core photo at depth: 3270-3272m
    Core photo at depth: 3276-3281m
    3255-3260m
    3260-3265m
    3265-3270m
    3270-3272m
    3276-3281m
    Core photo at depth: 3281-3285m
    Core photo at depth: 3292-3297m
    Core photo at depth: 3297-3302m
    Core photo at depth: 3302-3307m
    Core photo at depth: 3307-3312m
    3281-3285m
    3292-3297m
    3297-3302m
    3302-3307m
    3307-3312m
    Core photo at depth: 3312-3317m
    Core photo at depth: 3317-3318m
    Core photo at depth: 3319-3324m
    Core photo at depth: 3324-3329m
    Core photo at depth: 3329-3332m
    3312-3317m
    3317-3318m
    3319-3324m
    3324-3329m
    3329-3332m
    Core photo at depth: 3333-3338m
    Core photo at depth: 3338-3343m
    Core photo at depth: 3343-3348m
    Core photo at depth: 3348-3353m
    Core photo at depth: 3353-3358m
    3333-3338m
    3338-3343m
    3343-3348m
    3348-3353m
    3353-3358m
    Core photo at depth: 3358-3359m
    Core photo at depth: 3385-3390m
    Core photo at depth: 3390-3395m
    Core photo at depth: 3395-3400m
    Core photo at depth: 3400-3405m
    3358-3359m
    3385-3390m
    3390-3395m
    3395-3400m
    3400-3405m
    Core photo at depth: 3405-3410m
    Core photo at depth: 3410-3412m
    Core photo at depth: 3412-3417m
    Core photo at depth: 3417-3422m
    Core photo at depth: 3422-3427m
    3405-3410m
    3410-3412m
    3412-3417m
    3417-3422m
    3422-3427m
    Core photo at depth: 3427-3432m
    Core photo at depth: 3432-3437m
    Core photo at depth: 3437-3438m
    Core photo at depth: 3439-3444m
    Core photo at depth: 3444-3449m
    3427-3432m
    3432-3437m
    3437-3438m
    3439-3444m
    3444-3449m
    Core photo at depth: 3449-3454m
    Core photo at depth: 3454-3459m
    Core photo at depth: 3459-3464m
    Core photo at depth: 3464-3465m
    Core photo at depth: 3464-3471m
    3449-3454m
    3454-3459m
    3459-3464m
    3464-3465m
    3464-3471m
    Core photo at depth: 3471-3476m
    Core photo at depth: 3476-3481m
    Core photo at depth: 3481-3485m
    Core photo at depth: 4044-4049m
    Core photo at depth: 4049-4054m
    3471-3476m
    3476-3481m
    3481-3485m
    4044-4049m
    4049-4054m
    Core photo at depth: 4054-4059m
    Core photo at depth: 4059-4064m
    Core photo at depth: 4064-4069m
    Core photo at depth: 4069-4071m
    Core photo at depth:  
    4054-4059m
    4059-4064m
    4064-4069m
    4069-4071m

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    2253.5
    [m]
    SWC
    HYDRO
    2269.0
    [m]
    SWC
    HYDRO
    2305.0
    [m]
    SWC
    HYDRO
    2441.5
    [m]
    SWC
    HYDRO
    2473.0
    [m]
    SWC
    HYDRO
    2581.0
    [m]
    SWC
    HYDRO
    2633.5
    [m]
    SWC
    HYDRO
    2650.0
    [m]
    SWC
    HYDRO
    2734.5
    [m]
    SWC
    HYDRO
    2742.5
    [m]
    SWC
    HYDRO
    2781.0
    [m]
    SWC
    HYDRO
    2797.0
    [m]
    SWC
    HYDRO
    3081.0
    [m]
    SWC
    HYDRO
    3102.2
    [m]
    C
    HYDRO
    3106.1
    [m]
    C
    HYDRO
    3110.2
    [m]
    C
    HYDRO
    3124.9
    [m]
    C
    HYDRO
    3126.5
    [m]
    C
    HYDRO
    3128.3
    [m]
    C
    HYDRO
    3138.9
    [m]
    C
    HYDRO
    3182.7
    [m]
    C
    HYDRO
    3183.7
    [m]
    C
    HYDRO
    3195.7
    [m]
    C
    HYDRO
    3257.9
    [m]
    C
    HYDRO
    3272.2
    [m]
    C
    HYDRO
    3295.0
    [m]
    C
    HYDRO
    3304.5
    [m]
    C
    HYDRO
    3337.8
    [m]
    C
    HYDRO
    3346.9
    [m]
    C
    HYDRO
    3353.8
    [m]
    C
    HYDRO
    3353.9
    [m]
    C
    HYDRO
    3396.9
    [m]
    C
    HYDRO
    3403.2
    [m]
    C
    HYDRO
    3414.8
    [m]
    C
    HYDRO
    3424.1
    [m]
    C
    HYDRO
    3440.2
    [m]
    C
    HYDRO
    3450.0
    [m]
    C
    HYDRO
    3460.1
    [m]
    C
    HYDRO
    3470.6
    [m]
    C
    HYDRO
    3481.2
    [m]
    C
    HYDRO
    3482.4
    [m]
    C
    HYDRO
    3484.3
    [m]
    C
    HYDRO
    3701.0
    [m]
    SWC
    HYDRO
    3715.5
    [m]
    SWC
    HYDRO
    3750.5
    [m]
    SWC
    HYDRO
    3759.0
    [m]
    SWC
    HYDRO
    3782.0
    [m]
    SWC
    HYDRO
    3797.5
    [m]
    SWC
    HYDRO
    3805.2
    [m]
    SWC
    HYDRO
    3819.5
    [m]
    SWC
    HYDRO
    3829.2
    [m]
    SWC
    HYDRO
    3852.0
    [m]
    SWC
    HYDRO
    3865.2
    [m]
    SWC
    HYDRO
    3882.0
    [m]
    SWC
    HYDRO
    3890.0
    [m]
    SWC
    HYDRO
    3908.0
    [m]
    SWC
    HYDRO
    3911.3
    [m]
    SWC
    HYDRO
    3931.7
    [m]
    SWC
    HYDRO

  • Oil samples at the Norwegian Offshore Directorate
    Oil samples at the Norwegian Offshore Directorate
    Test type
    Bottle number
    Top depth
    MD [m]
    Bottom depth
    MD [m]
    Fluid type
    Test time
    Samples available
    DST
    TEST1
    3062.10
    3079.70
    13.04.1991 - 10:50
    YES
    DST
    TEST2A
    2994.40
    3002.20
    27.04.1991 - 00:00
    YES
    DST
    TEST2B
    2943.20
    3002.20
    13.05.1991 - 00:00
    YES
    DST
    DST4
    0.00
    0.00
    01.06.1991 - 00:00
    YES

  • Lithostratigraphy

  • Composite logs
    Composite logs
    Document name
    Document format
    Document size [MB]
    pdf
    0.66

  • Geochemical information
    Geochemical information
    Document name
    Document format
    Document size [MB]
    pdf
    1.16

  • Documents – reported by the production licence (period for duty of secrecy expired)
    Documents – reported by the production licence (period for duty of secrecy expired)
    Document name
    Document format
    Document size [MB]
    pdf
    27.73

  • Drill stem tests (DST)
    Drill stem tests (DST)
    Test number
    From depth MD
    [m]
    To depth MD
    [m]
    Choke size
    [mm]
    1.0
    3219
    3241
    15.8
    2.1
    3133
    3143
    17.4
    2.2
    3066
    3142
    20.6
    3.0
    3000
    3017
    21.4
    4.0
    2903
    2917
    25.4
    Drill stem tests (DST)
    Test number
    Final shut-in pressure
    [MPa]
    Final flow pressure
    [MPa]
    Bottom hole pressure
    [MPa]
    Downhole temperature
    [°C]
    1.0
    17.000
    113
    2.1
    25.000
    114
    2.2
    23.000
    112
    3.0
    20.000
    110
    4.0
    6.000
    Drill stem tests (DST)
    Test number
    Oil
    [Sm3/day]
    Gas
    [Sm3/day]
    Oil density
    [g/cm3]
    Gas grav. rel.air
    GOR
    [m3/m3]
    1.0
    441
    410130
    0.782
    0.728
    930
    2.1
    754
    605000
    0.788
    0.734
    803
    2.2
    985
    792000
    0.785
    0.739
    805
    3.0
    908
    708000
    0.777
    0.738
    781
    4.0
    205
    480000
    0.770
    0.690
    2418

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    CST-C GR
    2181
    2797
    CST-C GR
    3668
    3931
    DIL LSS GR SP AMS
    2164
    3584
    DIL LSS GR SP AMS
    3659
    3925
    DIL LSS LDL CNL GR SP AMS
    1149
    2163
    DLL MSFL GR CAL
    2164
    3667
    DLL MSFL LDL CNL GR SP AMS
    2850
    3226
    FMS4 GR CAL
    2164
    3669
    FMS4 GR CAL AMS
    3659
    3925
    LDL CNL NGL AMS
    2164
    3560
    LDL CNL NGL CAL AMS
    3659
    3929
    MWD - GR RES DIR
    332
    4120
    RFT HP GR
    3693
    3897
    RFT-B HP GR AMS
    2907
    3231
    VSP
    420
    2140
    VSP
    500
    2800
    VSP
    500
    3864

  • 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
    CONDUCTOR
    30
    417.0
    36
    421.0
    0.00
    LOT
    INTERM.
    18 5/8
    1146.0
    24
    1451.0
    1.58
    LOT
    INTERM.
    13 3/8
    2161.0
    17 1/2
    2800.0
    1.78
    LOT
    INTERM.
    9 5/8
    3662.0
    12 1/4
    3673.0
    2.07
    LOT
    OPEN HOLE
    4150.0
    8 1/2
    4150.0
    0.00
    LOT

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    420
    1.05
    1.0
    1.0
    WATER BASED
    10.12.1990
    500
    1.00
    1.0
    1.0
    WATER BASED
    10.06.1991
    500
    1.00
    1.0
    1.0
    WATER BASED
    10.06.1991
    1165
    1.20
    1.0
    1.0
    WATER BASED
    18.12.1990
    1165
    1.25
    1.0
    1.0
    WATER BASED
    13.12.1990
    1165
    1.25
    1.0
    1.0
    WATER BASED
    13.12.1990
    1165
    1.05
    1.0
    1.0
    WATER BASED
    14.12.1990
    1165
    1.20
    1.0
    1.0
    WATER BASED
    18.12.1990
    1165
    1.20
    1.0
    1.0
    WATER BASED
    18.12.1990
    1165
    1.20
    10.0
    3.0
    WATER BASED
    18.12.1990
    1186
    1.20
    14.0
    5.0
    WATER BASED
    19.12.1990
    1488
    1.20
    14.0
    5.0
    WATER BASED
    21.12.1990
    1846
    1.40
    29.0
    8.0
    WATER BASED
    27.12.1990
    2117
    1.38
    27.0
    9.0
    WATER BASED
    27.12.1990
    2177
    1.40
    25.0
    13.0
    WATER BASED
    27.12.1990
    2177
    1.40
    25.0
    13.0
    WATER BASED
    27.12.1990
    2177
    1.40
    25.0
    13.0
    WATER BASED
    28.12.1990
    2177
    1.40
    25.0
    13.0
    WATER BASED
    03.01.1991
    2177
    1.40
    29.0
    8.0
    WATER BASED
    03.01.1991
    2177
    1.40
    29.0
    9.0
    WATER BASED
    03.01.1991
    2177
    1.40
    29.0
    9.0
    WATER BASED
    03.01.1991
    2177
    1.40
    29.0
    9.0
    WATER BASED
    03.01.1991
    2177
    1.40
    21.0
    7.0
    WATER BASED
    07.01.1991
    2177
    1.40
    21.0
    7.0
    WATER BASED
    08.01.1991
    2177
    1.40
    21.0
    7.0
    WATER BASED
    09.01.1991
    2177
    1.40
    21.0
    7.0
    WATER BASED
    11.01.1991
    2177
    1.40
    21.0
    7.0
    WATER BASED
    14.01.1991
    2177
    1.40
    21.0
    7.0
    WATER BASED
    15.01.1991
    2177
    1.40
    21.0
    7.0
    WATER BASED
    16.01.1991
    2177
    1.40
    21.0
    11.0
    WATER BASED
    17.01.1991
    2177
    1.40
    21.0
    11.0
    WATER BASED
    18.01.1991
    2177
    1.40
    20.0
    12.0
    WATER BASED
    21.01.1991
    2177
    1.40
    20.0
    12.0
    WATER BASED
    21.01.1991
    2177
    1.40
    25.0
    13.0
    WATER BASED
    27.12.1990
    2177
    1.40
    25.0
    13.0
    WATER BASED
    03.01.1991
    2177
    1.40
    29.0
    9.0
    WATER BASED
    07.01.1991
    2177
    1.40
    21.0
    7.0
    WATER BASED
    14.01.1991
    2180
    1.40
    23.0
    12.0
    WATER BASED
    23.01.1991
    2204
    1.40
    21.0
    11.0
    WATER BASED
    25.01.1991
    2300
    1.45
    24.0
    12.0
    WATER BASED
    25.01.1991
    2331
    1.45
    23.0
    12.0
    WATER BASED
    29.01.1991
    2518
    1.50
    24.0
    13.0
    WATER BASED
    29.01.1991
    2656
    1.55
    28.0
    12.0
    WATER BASED
    29.01.1991
    2767
    1.60
    34.0
    13.0
    WATER BASED
    30.01.1991
    2819
    1.65
    33.0
    13.0
    WATER BASED
    30.01.1991
    2835
    1.70
    32.0
    20.0
    WATER BASED
    07.06.1991
    2859
    1.65
    31.0
    12.0
    WATER BASED
    31.01.1991
    2899
    1.65
    39.0
    12.0
    WATER BASED
    01.02.1991
    2927
    1.65
    34.0
    12.0
    WATER BASED
    05.02.1991
    2945
    1.70
    30.0
    17.0
    WATER BASED
    31.05.1991
    2945
    1.70
    30.0
    17.0
    WATER BASED
    04.06.1991
    2945
    1.70
    30.0
    17.0
    WATER BASED
    05.06.1991
    2945
    1.70
    29.0
    13.0
    WATER BASED
    06.06.1991
    2945
    1.70
    30.0
    17.0
    WATER BASED
    04.06.1991
    3005
    1.65
    34.0
    13.0
    WATER BASED
    05.02.1991
    3021
    1.65
    34.0
    12.0
    WATER BASED
    05.02.1991
    3050
    1.70
    28.0
    15.0
    WATER BASED
    21.05.1991
    3050
    1.73
    31.0
    18.0
    WATER BASED
    21.05.1991
    3050
    1.73
    29.0
    19.0
    WATER BASED
    21.05.1991
    3050
    1.73
    32.0
    19.0
    WATER BASED
    22.05.1991
    3050
    1.73
    31.0
    18.0
    WATER BASED
    23.05.1991
    3050
    1.73
    31.0
    18.0
    WATER BASED
    24.05.1991
    3050
    1.73
    31.0
    18.0
    WATER BASED
    28.05.1991
    3050
    1.73
    31.0
    18.0
    WATER BASED
    28.05.1991
    3050
    1.70
    30.0
    17.0
    WATER BASED
    30.05.1991
    3050
    1.73
    30.0
    17.0
    WATER BASED
    29.05.1991
    3057
    1.70
    27.0
    12.0
    WATER BASED
    21.05.1991
    3067
    1.65
    33.0
    11.0
    WATER BASED
    05.02.1991
    3085
    1.65
    34.0
    15.0
    WATER BASED
    06.02.1991
    3105
    1.65
    30.0
    11.0
    WATER BASED
    07.02.1991
    3124
    1.65
    30.0
    9.0
    WATER BASED
    08.02.1991
    3124
    1.65
    30.0
    9.0
    WATER BASED
    08.02.1991
    3134
    1.70
    29.0
    12.0
    WATER BASED
    25.04.1991
    3134
    1.70
    24.0
    9.0
    WATER BASED
    23.04.1991
    3144
    1.65
    40.0
    15.0
    WATER BASED
    12.02.1991
    3150
    1.70
    21.0
    7.0
    WATER BASED
    08.04.1991
    3160
    1.70
    28.0
    10.0
    WATER BASED
    08.05.1991
    3160
    1.70
    28.0
    10.0
    WATER BASED
    10.05.1991
    3160
    1.70
    27.0
    17.0
    WATER BASED
    14.05.1991
    3160
    1.70
    30.0
    13.0
    WATER BASED
    21.05.1991
    3160
    1.70
    30.0
    9.0
    WATER BASED
    25.04.1991
    3160
    1.70
    30.0
    9.0
    WATER BASED
    26.04.1991
    3160
    1.70
    30.0
    9.0
    WATER BASED
    30.04.1991
    3160
    1.70
    30.0
    9.0
    WATER BASED
    30.04.1991
    3160
    1.70
    30.0
    9.0
    WATER BASED
    30.04.1991
    3160
    1.70
    30.0
    9.0
    WATER BASED
    02.05.1991
    3160
    1.70
    30.0
    12.0
    WATER BASED
    03.05.1991
    3160
    1.70
    30.0
    12.0
    WATER BASED
    06.05.1991
    3160
    1.70
    30.0
    12.0
    WATER BASED
    06.05.1991
    3160
    1.70
    28.0
    10.0
    WATER BASED
    07.05.1991
    3160
    1.70
    29.0
    14.0
    WATER BASED
    10.05.1991
    3160
    1.70
    29.0
    14.0
    WATER BASED
    14.05.1991
    3160
    1.70
    29.0
    14.0
    WATER BASED
    14.05.1991
    3160
    1.70
    27.0
    17.0
    WATER BASED
    14.05.1991
    3160
    1.70
    27.0
    17.0
    WATER BASED
    15.05.1991
    3160
    1.70
    27.0
    17.0
    WATER BASED
    16.05.1991
    3173
    1.65
    40.0
    14.0
    WATER BASED
    12.02.1991
    3184
    1.71
    24.0
    6.0
    WATER BASED
    22.04.1991
    3184
    1.70
    25.0
    8.0
    WATER BASED
    22.04.1991
    3187
    1.65
    39.0
    12.0
    WATER BASED
    12.02.1991
    3208
    1.65
    40.0
    12.0
    WATER BASED
    12.02.1991
    3233
    1.65
    42.0
    13.0
    WATER BASED
    13.02.1991
    3236
    1.65
    38.0
    13.0
    WATER BASED
    14.02.1991
    3255
    1.70
    21.0
    6.0
    WATER BASED
    08.04.1991
    3255
    1.70
    20.0
    5.0
    WATER BASED
    09.04.1991
    3255
    1.70
    20.0
    6.0
    WATER BASED
    11.04.1991
    3255
    1.70
    20.0
    6.0
    WATER BASED
    12.04.1991
    3255
    1.70
    20.0
    6.0
    WATER BASED
    17.04.1991
    3255
    1.70
    20.0
    6.0
    WATER BASED
    17.04.1991
    3255
    1.70
    20.0
    6.0
    WATER BASED
    17.04.1991
    3255
    1.70
    20.0
    5.0
    WATER BASED
    19.04.1991
    3255
    1.71
    24.0
    6.0
    WATER BASED
    22.04.1991
    3255
    1.70
    20.0
    6.0
    WATER BASED
    17.04.1991
    3255
    1.70
    20.0
    5.0
    WATER BASED
    18.04.1991
    3256
    1.65
    34.0
    12.0
    WATER BASED
    15.02.1991
    3256
    1.65
    34.0
    12.0
    WATER BASED
    19.02.1991
    3258
    1.70
    20.0
    6.0
    WATER BASED
    08.04.1991
    3276
    1.65
    40.0
    14.0
    WATER BASED
    19.02.1991
    3279
    1.65
    42.0
    12.0
    WATER BASED
    19.02.1991
    3286
    1.65
    36.0
    13.0
    WATER BASED
    19.02.1991
    3292
    1.65
    39.0
    14.0
    WATER BASED
    19.02.1991
    3319
    1.65
    37.0
    14.0
    WATER BASED
    20.02.1991
    3333
    1.65
    40.0
    13.0
    WATER BASED
    21.02.1991
    3358
    1.65
    39.0
    12.0
    WATER BASED
    22.02.1991
    3380
    1.65
    39.0
    12.0
    WATER BASED
    26.02.1991
    3386
    1.65
    38.0
    11.0
    WATER BASED
    26.02.1991
    3412
    1.65
    38.0
    12.0
    WATER BASED
    26.02.1991
    3439
    1.64
    38.0
    11.0
    WATER BASED
    26.02.1991
    3466
    1.65
    41.0
    12.0
    WATER BASED
    27.02.1991
    3474
    1.65
    40.0
    12.0
    WATER BASED
    28.02.1991
    3486
    1.65
    40.0
    12.0
    WATER BASED
    01.03.1991
    3518
    1.65
    37.0
    12.0
    WATER BASED
    05.03.1991
    3560
    1.59
    20.0
    7.0
    WATER BASED
    05.04.1991
    3560
    1.70
    21.0
    7.0
    WATER BASED
    05.04.1991
    3561
    1.65
    35.0
    11.0
    WATER BASED
    05.03.1991
    3615
    1.65
    34.0
    12.0
    WATER BASED
    05.03.1991
    3671
    1.65
    36.0
    10.0
    WATER BASED
    06.03.1991
    3671
    1.65
    46.0
    11.0
    WATER BASED
    05.03.1991
    3671
    1.65
    40.0
    7.0
    WATER BASED
    07.03.1991
    3671
    1.65
    41.0
    10.0
    WATER BASED
    08.03.1991
    3671
    1.65
    40.0
    9.0
    WATER BASED
    11.03.1991
    3671
    1.68
    52.0
    11.0
    WATER BASED
    11.03.1991
    3671
    1.68
    34.0
    19.0
    WATER BASED
    11.03.1991
    3673
    1.68
    37.0
    7.0
    WATER BASED
    15.03.1991
    3673
    1.68
    37.0
    7.0
    WATER BASED
    15.03.1991
    3673
    1.68
    45.0
    11.0
    WATER BASED
    12.03.1991
    3673
    1.68
    40.0
    9.0
    WATER BASED
    13.03.1991
    3673
    1.68
    42.0
    11.0
    WATER BASED
    14.03.1991
    3673
    1.60
    26.0
    7.0
    WATER BASED
    18.03.1991
    3746
    1.60
    31.0
    9.0
    WATER BASED
    18.03.1991
    3781
    1.60
    30.0
    7.0
    WATER BASED
    18.03.1991
    3874
    1.60
    38.0
    6.0
    WATER BASED
    20.03.1991
    3917
    1.60
    27.0
    7.0
    WATER BASED
    20.03.1991
    4027
    1.60
    24.0
    6.0
    WATER BASED
    21.03.1991
    4043
    1.60
    24.0
    7.0
    WATER BASED
    22.03.1991
    4071
    1.60
    22.0
    7.0
    WATER BASED
    26.03.1991
    4114
    1.60
    23.0
    7.0
    WATER BASED
    26.03.1991
    4122
    1.60
    26.0
    8.0
    WATER BASED
    26.03.1991
    4149
    1.60
    23.0
    7.0
    WATER BASED
    26.03.1991
    4150
    1.59
    20.0
    7.0
    WATER BASED
    27.03.1991

  • Pressure plots
    Pressure plots
    The pore pressure data is sourced from well logs if no other source is specified. In some wells where pore pressure logs do not exist, information from Drill stem tests and kicks have been used. The data has been reported to the NPD, and further processed and quality controlled by IHS Markit.
    Pressure plots
    Document name
    Document format
    Document size [MB]
    pdf
    0.23