Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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21.11.2024 - 01:28
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34/5-2 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.
    34/5-2 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
    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
    Well name
    Official name of the parent well for the wellbore based on Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    34/5-2
    Seismic location
    Position of spud location on seismic survey lines. SP: shotpoint.
    Inline: 5328. Xline 33056
    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.
    A/S Norske Shell
    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.
    1698-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.
    35
    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,
    31.05.2018
    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.
    04.07.2018
    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.
    04.07.2018
    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.
    04.01.2019
    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.
    02.05.2019
    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.
    DRY
    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.
    33.7
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    387.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    3711.0
    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).
    3706.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    6.47
    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.
    EARLY 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.
    AMUNDSEN FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    61° 43' 31.18'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    2° 39' 17.51'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    6843794.24
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    481759.32
    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.
    8448

  • Wellbore history
    General
    Well 34/5-2 S was drilled to test the Tyttebær prospect on Tampen Spur, 8 km south-west of the Knarr discovery in the northern North Sea. The primary objective was to test the hydrocarbon potential in the Early Jurassic Cook Formation.
    Operations and results
    Wildcat well 34/5-2 S was spudded with the semi-submersible installation Scarabeo 8 on 31 May 2018 and drilled to TD at 3711 m in the Early Jurassic Amundsen Formation. Operations proceeded without significant problems. The well was drilled with seawater and hi-vis sweeps down to 1070 m, with KCl/GEM/polymer mud from 1070 m to 2133 m, and with Enviromul oil-based mud from 2133 m to TD.
    The Cook Formation was penetrated from 3588 to 3674 m and consisted of fine to very fine-grained sandstone and siltstone. About 50 metres of Cook was reservoir sandstone with generally poor to moderate reservoir quality. Shows (fluorescence and cut) were observed in the Cook Formation, but post-well geochemical analyses indicated the fluorescence to come from the oil-based mud used in the well. The overlying Drake Formation is indicated by kerogen analysis to have source rock quality. Vitrinite reflectance in Drake is around 0.8%Ro, i.e. oil-window maturity.
    No cores were cut. No fluid sample was taken.
    The well was permanently abandoned on 4 July 2018 as a dry well.
    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]
    1080.00
    3711.00

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    3496.0
    [m]
    DC
    PETROSTR
    3499.0
    [m]
    DC
    PETROS
    3502.0
    [m]
    DC
    PETROS
    3505.0
    [m]
    DC
    PETROS
    3508.0
    [m]
    DC
    PETROS
    3511.0
    [m]
    DC
    PETROS
    3514.0
    [m]
    DC
    PETROS
    3517.0
    [m]
    DC
    PETROS
    3520.0
    [m]
    DC
    PETROS
    3523.0
    [m]
    DC
    PETROS
    3526.0
    [m]
    DC
    PETROS
    3529.0
    [m]
    DC
    PETROS
    3532.0
    [m]
    DC
    PETROS
    3535.0
    [m]
    DC
    PETROS
    3538.0
    [m]
    DC
    PETROS
    3541.0
    [m]
    DC
    PETROS
    3544.0
    [m]
    DC
    PETROS
    3547.0
    [m]
    DC
    PETROS
    3550.0
    [m]
    DC
    PETROS
    3553.0
    [m]
    DC
    PETROS
    3556.0
    [m]
    DC
    PETROS
    3559.0
    [m]
    DC
    PETROS
    3562.0
    [m]
    DC
    PETROS
    3565.0
    [m]
    DC
    PETROS
    3568.0
    [m]
    DC
    PETROS
    3571.0
    [m]
    DC
    PETROS
    3574.0
    [m]
    DC
    PETROS
    3577.0
    [m]
    DC
    PETROS
    3580.0
    [m]
    DC
    PETROS
    3583.0
    [m]
    DC
    PETROS
    3586.0
    [m]
    DC
    PETROS
    3589.0
    [m]
    DC
    PETROS
    3592.0
    [m]
    DC
    PETROS
    3595.0
    [m]
    DC
    PETROS
    3598.0
    [m]
    DC
    PETROS
    3601.0
    [m]
    DC
    PETROS
    3604.0
    [m]
    DC
    PETROS
    3607.0
    [m]
    DC
    PETROS
    3610.0
    [m]
    DC
    PETROS
    3613.0
    [m]
    DC
    PETROS
    3616.0
    [m]
    DC
    PETROS
    3619.0
    [m]
    DC
    PETROS
    3622.0
    [m]
    DC
    PETROS
    3625.0
    [m]
    DC
    PETROS
    3628.0
    [m]
    DC
    PETROS
    3634.0
    [m]
    DC
    PETROS
    3637.0
    [m]
    DC
    PETROS
    3640.0
    [m]
    DC
    PETROS
    3643.0
    [m]
    DC
    PETROS
    3646.0
    [m]
    DC
    PETROS
    3649.0
    [m]
    DC
    PETROS
    3652.0
    [m]
    DC
    PETROS
    3655.0
    [m]
    DC
    PETROS
    3658.0
    [m]
    DC
    PETROS
    3661.0
    [m]
    DC
    PETROS
    3664.0
    [m]
    DC
    PETROS
    3667.0
    [m]
    DC
    PETROS
    3670.0
    [m]
    DC
    PETROS
    3673.0
    [m]
    DC
    PETROS
    3676.0
    [m]
    DC
    PETROS
    3679.0
    [m]
    DC
    PETROS
    3682.0
    [m]
    DC
    PETROS
    3685.0
    [m]
    DC
    PETROS
    3688.0
    [m]
    DC
    PETROS
    3691.0
    [m]
    DC
    PETROS
    3694.0
    [m]
    DC
    PETROS
    3697.0
    [m]
    DC
    PETROS
    3700.0
    [m]
    DC
    PETROS
    3703.0
    [m]
    DC
    PETROS
    3706.0
    [m]
    DC
    PETROS
    3709.0
    [m]
    DC
    PETROS
    3711.0
    [m]
    DC
    PETROS

  • Lithostratigraphy

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    MWD - DIR FTPWD GR RES SON DEN N
    3493
    3711
    MWD - DIR HO
    0
    498
    MWD - DIR PWD
    498
    1070
    MWD - DIR PWD GR RES SON
    1070
    2133
    MWD - DIR PWD GR RES SON GP
    2133
    3493

  • 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
    36
    498.0
    42
    498.0
    0.00
    SURF.COND.
    20
    1063.7
    26
    1070.0
    1.56
    LOT
    INTERM.
    13 5/8
    2121.8
    17 1/2
    2133.0
    1.81
    LOT
    INTERM.
    9 7/8
    3491.0
    12 1/4
    3493.0
    2.03
    LOT
    OPEN HOLE
    3711.0
    8 1/2
    3711.0
    0.00

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    447
    1.03
    Seawater
    460
    1.50
    Fresh Water Bentonite
    470
    1.50
    Kill Mud
    480
    1.04
    Fresh Water Bentonite
    1070
    1.03
    Seawater
    1070
    1.50
    Kill mud
    1070
    1.04
    Sweeps
    1073
    1.37
    KCl/Polymer/GEM WBM
    2007
    1.41
    KCl/Polymer/GEM
    2133
    1.41
    KCl/Polymer/GEM
    2133
    1.46
    Oil Based
    2400
    1.50
    Oil Based
    3101
    1.50
    Oil Based
    3195
    1.03
    Seawater
    3200
    1.03
    Seawater
    3200
    1.00
    Oil Based
    3426
    1.55
    Oil Based
    3452
    1.81
    Oil Based
    3493
    1.55
    Oil Based
    3515
    1.81
    Oil Based
    3711
    1.81
    Oil Based