Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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sodir.no          Norsk
22.11.2024 - 09:09
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30/12-1

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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.
    30/12-1
    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
    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
    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.
    30/12-1
    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.
    774-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.
    61
    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,
    06.01.1994
    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.
    07.03.1994
    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.
    07.03.1996
    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.
    31.10.2003
    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.
    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.
    22.0
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    113.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    3641.0
    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).
    3640.5
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    4.6
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    150
    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.
    STATFJORD GP
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    60° 8' 44.3'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    2° 51' 6.54'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    6667796.28
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    491770.63
    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.
    2248

  • Wellbore history
    General
    Well 30/12-1 is located ca 12 km south of the 30/9-16 discovery well on the Oseberg Field complex. It was drilled to reduce uncertainties about hydrocarbon migration in the eastern part of the block. The primary objectives of the well were to test the hydrocarbon potential of the Middle Jurassic Tarbert Formation with the Ness-Oseberg-Rannoch-Etive Formations and the Early Jurassic Cook and Statfjord Formations.
    Operations and results
    Exploration well 30/12-1 was spudded with the semi-submersible installation "West Vanguard" on 6 January 1994 and drilled to TD at 3641 m in the Early Jurassic Statfjord Formation. The well was drilled with seawater and bentonite hi-vis sweeps down to 1130 m and with "ANCO 2000" mud from 1130 m to TD.
    The Tarbert Formation was penetrated at 2903 m and was found to be 86 m thick in this well. The Brent Group, the Cook Formation, and the Statfjord Formation were found to be water bearing. Three conventional cores with 65 to 99 % recovery were cut in sandstone with thin coal beds in the interval 2901 m to 2970 m. Core number 1 included the lowermost two metres of the Heather Formation, otherwise all cores were cut in the Tarbert Formation. No fluid samples were taken. The well was permanently abandoned as a dry well on 7 March 1994.
    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]
    1140.00
    3640.00

  • 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
    2901.0
    2927.2
    [m ]
    2
    2927.6
    2960.1
    [m ]
    3
    2961.0
    2966.9
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    64.7
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    YES

  • Core photos
    Core photos
    Core photo at depth: 2901-2906m
    Core photo at depth: 2906-2911m
    Core photo at depth: 2911-2916m
    Core photo at depth: 2916-2921m
    Core photo at depth: 2921-2926m
    2901-2906m
    2906-2911m
    2911-2916m
    2916-2921m
    2921-2926m
    Core photo at depth: 2926-2927m
    Core photo at depth: 2927-2932m
    Core photo at depth: 2932-2937m
    Core photo at depth: 2937-2942m
    Core photo at depth: 2942-2947m
    2926-2927m
    2927-2932m
    2932-2937m
    2937-2942m
    2942-2947m
    Core photo at depth: 2947-2952m
    Core photo at depth: 2952-2957m
    Core photo at depth: 2957-2960m
    Core photo at depth: 2961-2966m
    Core photo at depth: 2966-2967m
    2947-2952m
    2952-2957m
    2957-2960m
    2961-2966m
    2966-2967m

  • 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
    219.0
    36
    219.0
    0.00
    LOT
    SURF.COND.
    13 3/8
    1120.0
    17 1/2
    1122.0
    0.00
    LOT
    INTERM.
    9 5/8
    2802.0
    12 1/4
    2804.0
    0.00
    LOT
    OPEN HOLE
    3641.0
    8 1/2
    3641.0
    0.00
    LOT

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    CST
    1356
    2836
    CST
    1356
    2836
    CST
    2865
    3613
    DIL SDL/LSS GR SP AMS
    220
    1125
    DLL MSFL SDT LDL CNL GR SP AMS
    1015
    2843
    DLL MSFL SDT/LSS GR SP AMS
    2809
    3643
    LDL CNL FMS GR AMS
    2804
    3643
    MWD RGD - GR RES DIR
    136
    3580
    RFT
    2912
    3619
    VSP
    200
    2750
    VSP
    2600
    3630

  • Lithostratigraphy

  • Composite logs
    Composite logs
    Document name
    Document format
    Document size [MB]
    pdf
    0.71

  • Geochemical information
    Geochemical information
    Document name
    Document format
    Document size [MB]
    pdf
    1.70
    pdf
    0.40

  • 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
    22.01

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    185
    1.41
    17.0
    WATER BASED
    220
    1.05
    WATER BASED
    708
    1.05
    WATER BASED
    1006
    1.45
    17.0
    WATER BASED
    1130
    1.20
    WATER BASED
    1769
    1.45
    33.0
    WATER BASED
    1895
    1.45
    27.0
    WATER BASED
    2151
    1.39
    34.0
    WATER BASED
    2317
    1.39
    32.0
    WATER BASED
    2500
    1.45
    27.0
    WATER BASED
    2558
    1.45
    21.0
    WATER BASED
    2648
    1.45
    22.0
    WATER BASED
    2711
    1.45
    23.0
    WATER BASED
    2791
    1.45
    24.0
    WATER BASED
    2842
    1.45
    24.0
    WATER BASED
    2961
    1.23
    20.0
    WATER BASED
    2996
    1.20
    18.0
    WATER BASED
    3315
    1.20
    19.0
    WATER BASED
    3585
    1.21
    15.0
    WATER BASED
    3641
    1.23
    18.0
    WATER BASED

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    1140.0
    [m]
    DC
    HYDRO
    1160.0
    [m]
    DC
    HYDRO
    1180.0
    [m]
    DC
    HYDRO
    1200.0
    [m]
    DC
    HYDRO
    1220.0
    [m]
    DC
    HYDRO
    1240.0
    [m]
    DC
    HYDRO
    1260.0
    [m]
    DC
    HYDRO
    1280.0
    [m]
    DC
    HYRDRO
    1300.0
    [m]
    DC
    HYDRO
    1320.0
    [m]
    DC
    HYDRO
    1340.0
    [m]
    DC
    HYDRO
    1356.0
    [m]
    SWC
    HYDRO
    1360.0
    [m]
    DC
    HYDRO
    1380.0
    [m]
    DC
    HYDRO
    1400.0
    [m]
    DC
    HYDRO
    1420.0
    [m]
    DC
    HYDRO
    1440.0
    [m]
    DC
    HYDRO
    1460.0
    [m]
    DC
    HYDRO
    1491.0
    [m]
    SWC
    HYDRO
    1500.0
    [m]
    DC
    HYDRO
    1520.0
    [m]
    DC
    HYDRO
    1540.0
    [m]
    DC
    HYDRO
    1560.0
    [m]
    DC
    HYDRO
    1580.0
    [m]
    SWC
    HYDRO
    1600.0
    [m]
    DC
    HYDRO
    1620.0
    [m]
    DC
    HYDRO
    1640.0
    [m]
    DC
    HYDRO
    1660.0
    [m]
    DC
    HYDRO
    1680.0
    [m]
    DC
    HYDRO
    1700.0
    [m]
    DC
    HYDRO
    1723.0
    [m]
    SWC
    HYDRO
    1740.0
    [m]
    DC
    HYDRO
    1760.0
    [m]
    DC
    HYDRO
    1780.0
    [m]
    DC
    HYDRO
    1800.0
    [m]
    DC
    HYDRO
    1816.0
    [m]
    SWC
    HYDRO
    1840.0
    [m]
    DC
    HYDRO
    1860.0
    [m]
    DC
    HYDRO
    1880.0
    [m]
    DC
    HYDRO
    1900.0
    [m]
    DC
    HYDRO
    1917.0
    [m]
    SWC
    HYDRO
    1940.0
    [m]
    DC
    HYDRO
    1960.0
    [m]
    DC
    HYDRO
    1980.0
    [m]
    DC
    HYDRO
    2020.0
    [m]
    DC
    HYDRO
    2040.0
    [m]
    DC
    HYDRO
    2060.0
    [m]
    DC
    HYDRO
    2080.0
    [m]
    DC
    HYDRO
    2095.0
    [m]
    SWC
    HYDRO
    2157.0
    [m]
    SWC
    HYDRO
    2209.0
    [m]
    SWC
    HYDRO
    2235.0
    [m]
    SWC
    HYDRO
    2253.0
    [m]
    SWC
    HYDRO
    2280.0
    [m]
    DC
    HYDRO
    2302.0
    [m]
    SWC
    HYDRO
    2320.0
    [m]
    DC
    HYDRO
    2340.0
    [m]
    DC
    HYDRO
    2360.0
    [m]
    DC
    HYDRO
    2380.0
    [m]
    DC
    HYDRO
    2400.0
    [m]
    DC
    HYDRO
    2420.0
    [m]
    SWC
    HYDRO
    2420.0
    [m]
    DC
    HYDRO
    2440.0
    [m]
    DC
    HYDRO
    2460.0
    [m]
    DC
    HYDRO
    2480.0
    [m]
    DC
    HYDRO
    2520.0
    [m]
    DC
    HYDRO
    2550.0
    [m]
    DC
    HYDRO
    2560.0
    [m]
    DC
    HYDRO
    2610.0
    [m]
    DC
    HYDRO
    2620.0
    [m]
    DC
    HYDRO
    2630.0
    [m]
    DC
    HYDRO
    2640.0
    [m]
    DC
    HYDRO
    2650.0
    [m]
    DC
    HYDRO
    2660.0
    [m]
    DC
    HYDRO
    2670.0
    [m]
    DC
    HYDRO
    2690.0
    [m]
    DC
    HYDRO
    2705.0
    [m]
    DC
    HYDRO
    2710.0
    [m]
    DC
    HYDRO
    2730.0
    [m]
    DC
    HYDRO
    2740.0
    [m]
    DC
    HYDRO
    2750.0
    [m]
    DC
    HYDRO
    2762.0
    [m]
    DC
    HYDRO
    2770.0
    [m]
    DC
    HYDRO
    2787.0
    [m]
    DC
    HYDRO
    2796.0
    [m]
    SWC
    HYDRO
    2805.0
    [m]
    DC
    HYDRO
    2812.0
    [m]
    SWC
    HYDRO
    2820.0
    [m]
    SWC
    HYDRO
    2822.0
    [m]
    DC
    HYDRO
    2830.0
    [m]
    SWC
    HYDRO
    2836.0
    [m]
    SWC
    HYDRO
    2842.0
    [m]
    DC
    HYDRO
    2850.0
    [m]
    DC
    HYDRO
    2857.0
    [m]
    DC
    HYDRO
    2865.0
    [m]
    SWC
    HYDRO
    2875.0
    [m]
    SWC
    HYDRO
    2886.0
    [m]
    SWC
    HYDRO
    2897.5
    [m]
    SWC
    HYDRO
    2918.3
    [m]
    C
    HYDRO
    2921.7
    [m]
    C
    HYDRO
    2944.0
    [m]
    C
    HYDRO
    2944.1
    [m]
    C
    UNIV.SHE
    2955.9
    [m]
    C
    HYDRO
    2960.0
    [m]
    C
    HYDRO
    2961.3
    [m]
    C
    HYDRO
    2967.0
    [m]
    C
    HYDRO
    2992.5
    [m]
    SWC
    HYDRO
    3001.0
    [m]
    SWC
    HYDRO
    3010.5
    [m]
    SWC
    HYDRO
    3020.0
    [m]
    SWC
    HYDRO
    3029.5
    [m]
    SWC
    HYDRO
    3037.0
    [m]
    DC
    HYDRO
    3042.0
    [m]
    SWC
    HYDRO
    3050.0
    [m]
    DC
    HYDRO
    3057.0
    [m]
    DC
    HYDRO
    3078.0
    [m]
    SWC
    HYDRO
    3080.0
    [m]
    DC
    HYDRO
    3085.0
    [m]
    SWC
    HYDRO
    3090.0
    [m]
    SWC
    HYDRO
    3111.5
    [m]
    SWC
    HYDRO
    3135.0
    [m]
    SWC
    HYDRO
    3146.0
    [m]
    SWC
    HYDRO
    3155.0
    [m]
    DC
    HYDRO
    3165.0
    [m]
    DC
    HYDRO
    3175.0
    [m]
    DC
    HYDRO
    3185.0
    [m]
    SWC
    HYDRO
    3190.0
    [m]
    DC
    HYDRO
    3200.0
    [m]
    DC
    HYDRO
    3210.0
    [m]
    DC
    HYDRO
    3220.0
    [m]
    DC
    HYDRO
    3230.0
    [m]
    DC
    HYDRO
    3240.0
    [m]
    DC
    HYDRO
    3250.0
    [m]
    DC
    HYDRO
    3260.0
    [m]
    DC
    HYDRO
    3270.0
    [m]
    DC
    HYDRO
    3270.0
    [m]
    SWC
    HYDRO
    3280.0
    [m]
    DC
    HYDRO
    3290.0
    [m]
    DC
    HYDRO
    3300.0
    [m]
    DC
    HYDRO
    3310.0
    [m]
    DC
    HYDRO
    3320.0
    [m]
    DC
    HYDRO
    3330.0
    [m]
    DC
    HYDRO
    3340.0
    [m]
    DC
    HYDRO
    3350.0
    [m]
    DC
    HYDRO
    3360.0
    [m]
    DC
    HYDRO
    3370.0
    [m]
    DC
    HYDRO
    3380.0
    [m]
    DC
    HYDRO
    3390.0
    [m]
    DC
    HYDRO
    3400.0
    [m]
    SWC
    HYDRO
    3410.0
    [m]
    DC
    HYDRO
    3420.0
    [m]
    DC
    HYDRO
    3428.0
    [m]
    SWC
    HYDRO
    3440.0
    [m]
    DC
    HYDRO
    3450.0
    [m]
    DC
    HYDRO
    3460.0
    [m]
    DC
    HYDRO
    3470.0
    [m]
    DC
    HYDRO
    3480.0
    [m]
    DC
    HYDRO
    3490.0
    [m]
    DC
    HYDRO
    3500.0
    [m]
    DC
    HYDRO
    3510.0
    [m]
    DC
    HYDRO
    3520.0
    [m]
    DC
    HYDRO
    3530.0
    [m]
    DC
    HYDRO
    3542.0
    [m]
    SWC
    HYDRO
    3550.0
    [m]
    DC
    HYDRO
    3557.0
    [m]
    DC
    HYDRO
    3567.0
    [m]
    DC
    HYDRO
    3580.0
    [m]
    DC
    HYDRO
    3590.0
    [m]
    DC
    HYDRO
    3600.0
    [m]
    DC
    HYDRO
    3613.5
    [m]
    SWC
    HYDRO
    3620.0
    [m]
    DC
    HYDRO
    3630.0
    [m]
    DC
    HYDRO
    3640.0
    [m]
    DC
    HYDRO