Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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26.11.2024 - 01:27
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25/2-16 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.
    25/2-16 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
    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.
    25/2-16
    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.
    1010-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.
    42
    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,
    03.08.2001
    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.
    13.09.2001
    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.
    13.09.2003
    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.
    24.09.2003
    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.
    24.0
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    115.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    4013.0
    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).
    3792.4
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    29
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    121
    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.
    DUNLIN GP
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    59° 45' 7.67'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    2° 24' 33.1'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    6624109.27
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    466798.67
    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.
    4385

  • Wellbore history
    General
    Exploration well 25/2-16 S is located ca 3 km southwest off the 25/2-5 Lille Frøy Discovery. It was aimed at a down faulted, rotated block with the reservoir being primarily in the Hugin Formation in the Middle Jurassic Vestland Group - the "Godzilla" prospect. The structure is situated on the hanging wall Southwest of the Rind Horst in blocks 25/2 and 25/5.The main objectives of the well were to prove an HC-water contact and sufficient HC volumes to be able to initiate a development.
    Operations and results
    The well 25/2-16 S was spudded with the semi-submersible installation "Transocean Arctic" on 3 August 2001. Because of hole problems at 3088 m the hole was cemented and plugged back to 1850 m and side tracked. The well was drilled with seawater and bentonite down to 1160 m and with "VERSAVERT" oil based mud from 1160 m to 3088 m. The technical sidetrack, 25/2-16 S T2, was kicked off on 23 August 2001 at 1915 m and was drilled to TD at 4013 m in the Dunlin Group. The sidetrack was drilled with "VERSAVERT" oil based mud from kick off to final TD. No mobile hydrocarbons were encountered in the Hugin or Sleipner Formations though log analysis indicated that residual quantities of hydrocarbons might be present. Pressure measurements in the Hugin and Sleipner Formations indicate that there exist pressure barriers internally in the reservoir section. No core was cut in this well and no fluid samples taken. The well was permanently abandoned as a dry well 13 September 2001.
    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]
    1117.00
    3070.00

  • 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
    223.0
    36
    223.0
    0.00
    LOT
    SURF.COND.
    13 3/8
    1151.0
    17 1/2
    1155.0
    1.54
    LOT
    INTERM.
    9 5/8
    3179.0
    12 1/4
    3185.0
    1.84
    LOT
    OPEN HOLE
    4013.0
    8 1/2
    4013.0
    0.00
    LOT

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    GR MDT
    2796
    3969
    GR VSP CSAT
    2365
    4000
    MWD
    139
    223
    MWD - VISION ADN ISONIC
    3185
    4013
    MWD CDR - APWD
    223
    3088
    MWD CDR - APWD
    1915
    2912
    MWD CDR - APWD
    2912
    3185

  • Lithostratigraphy

  • Composite logs
    Composite logs
    Document name
    Document format
    Document size [MB]
    pdf
    0.37

  • 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
    4.19
    .PDF
    2.87

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    160
    0.00
    OIL BASED
    223
    1.39
    8.0
    WATER BASED
    225
    1.39
    20.0
    WATER BASED
    634
    1.03
    WATER BASED
    1160
    1.03
    WATER BASED
    1790
    1.25
    37.0
    OIL BASED
    2101
    1.25
    32.0
    OIL BASED
    2635
    1.31
    53.0
    OIL BASED
    2730
    1.25
    33.0
    OIL BASED
    2837
    1.25
    34.0
    OIL BASED
    2860
    1.49
    53.0
    OIL BASED
    2924
    1.25
    38.0
    OIL BASED
    2983
    1.25
    37.0
    OIL BASED
    2995
    1.33
    46.0
    OIL BASED
    3056
    1.25
    36.0
    OIL BASED
    3068
    1.50
    66.0
    OIL BASED
    3089
    1.25
    39.0
    OIL BASED
    3089
    1.25
    37.0
    OIL BASED
    3185
    1.41
    52.0
    OIL BASED
    3269
    1.49
    48.0
    OIL BASED
    3841
    1.50
    46.0
    OIL BASED
    4013
    1.50
    56.0
    OIL BASED

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    1605.0
    [m]
    DC
    GEOSTR
    1635.0
    [m]
    DC
    GEOSTR
    1665.0
    [m]
    DC
    GEOSTR
    1695.0
    [m]
    DC
    GEOSTR
    1725.0
    [m]
    DC
    GEOSTR
    1755.0
    [m]
    DC
    GEOSTR
    1785.0
    [m]
    DC
    GEOSTR
    1815.0
    [m]
    DC
    GEOSTR
    2340.0
    [m]
    DC
    GEOSTR
    2350.0
    [m]
    DC
    GEOSTR
    2360.0
    [m]
    DC
    GEOSTR
    2370.0
    [m]
    DC
    GEOSTR
    2380.0
    [m]
    DC
    GEOSTR
    2390.0
    [m]
    DC
    GEOSTR
    2400.0
    [m]
    DC
    GEOSTR
    2410.0
    [m]
    DC
    GEOSTR
    2420.0
    [m]
    DC
    GEOSTR
    2430.0
    [m]
    DC
    GEOSTR
    2440.0
    [m]
    DC
    GEOSTR
    2450.0
    [m]
    DC
    GEOSTR
    2460.0
    [m]
    DC
    GEOSTR
    2470.0
    [m]
    DC
    GEOSTR
    2480.0
    [m]
    DC
    GEOSTR
    2490.0
    [m]
    DC
    GEOSTR
    2500.0
    [m]
    DC
    GEOSTR
    2510.0
    [m]
    DC
    GEOSTR
    2520.0
    [m]
    DC
    GEOSTR
    2530.0
    [m]
    DC
    GEOSTR
    2540.0
    [m]
    DC
    GEOSTR
    2550.0
    [m]
    DC
    GEOSTR
    2560.0
    [m]
    DC
    GEOSTR
    2570.0
    [m]
    DC
    GEOSTR
    2580.0
    [m]
    DC
    GEOSTR
    2590.0
    [m]
    DC
    GEOSTR
    2600.0
    [m]
    DC
    GEOSTR
    2610.0
    [m]
    DC
    GEOSTR
    2620.0
    [m]
    DC
    GEOSTR
    2630.0
    [m]
    DC
    GEOSTR
    2640.0
    [m]
    DC
    GEOSTR
    2650.0
    [m]
    DC
    GEOSTR
    2660.0
    [m]
    DC
    GEOSTR
    2670.0
    [m]
    DC
    GEOSTR
    2680.0
    [m]
    DC
    GEOSTR
    2690.0
    [m]
    DC
    GEOSTR
    2700.0
    [m]
    DC
    GEOSTR
    2710.0
    [m]
    DC
    GEOSTR
    2720.0
    [m]
    DC
    GEOSTR
    2730.0
    [m]
    DC
    GEOSTR
    2740.0
    [m]
    DC
    GEOSTR
    2750.0
    [m]
    DC
    GEOSTR
    2760.0
    [m]
    DC
    GEOSTR
    2770.0
    [m]
    DC
    GEOSTR
    2780.0
    [m]
    DC
    GEOSTR
    2790.0
    [m]
    DC
    GEOSTR
    2800.0
    [m]
    DC
    GEOSTR
    2810.0
    [m]
    DC
    GEOSTR
    2820.0
    [m]
    DC
    GEOSTR
    2830.0
    [m]
    DC
    GEOSTR
    2840.0
    [m]
    DC
    GEOSTR
    2850.0
    [m]
    DC
    GEOSTR
    2860.0
    [m]
    DC
    GEOSTR
    2870.0
    [m]
    DC
    GEOSTR
    2880.0
    [m]
    DC
    GEOSTR
    2890.0
    [m]
    DC
    GEOSTR
    2900.0
    [m]
    DC
    GEOSTR
    2910.0
    [m]
    DC
    GEOSTR
    2920.0
    [m]
    DC
    GEOSTR
    2950.0
    [m]
    DC
    GEOSTR
    2980.0
    [m]
    DC
    GEOSTR
    3010.0
    [m]
    DC
    GEOSTR
    3040.0
    [m]
    DC
    GEOSTR
    3070.0
    [m]
    DC
    GEOSTR
    3105.0
    [m]
    DC
    GEOSTR
    3135.0
    [m]
    DC
    GEOSTR
    3150.0
    [m]
    DC
    GEOSTR
    3165.0
    [m]
    DC
    GEOSTR
    3195.0
    [m]
    DC
    GEOSTR
    3225.0
    [m]
    DC
    GEOSTR
    3255.0
    [m]
    DC
    GEOSTR
    3285.0
    [m]
    DC
    GEOSTR
    3315.0
    [m]
    DC
    GEOSTR
    3345.0
    [m]
    DC
    GEOSTR
    3375.0
    [m]
    DC
    GEOSTR
    3405.0
    [m]
    DC
    GEOSTR
    3435.0
    [m]
    DC
    GEOSTR
    3465.0
    [m]
    DC
    GEOSTR
    3495.0
    [m]
    DC
    GEOSTR
    3525.0
    [m]
    DC
    GEOSTR
    3555.0
    [m]
    DC
    GEOSTR
    3585.0
    [m]
    DC
    GEOSTR
    3615.0
    [m]
    DC
    GEOSTR
    3645.0
    [m]
    DC
    GEOSTR
    3675.0
    [m]
    DC
    GEOSTR
    3690.0
    [m]
    DC
    GEOSTR
    3705.0
    [m]
    DC
    GEOSTR
    3720.0
    [m]
    DC
    GEOSTR
    3735.0
    [m]
    DC
    GEOSTR
    3750.0
    [m]
    DC
    GEOSTR
    3765.0
    [m]
    DC
    GEOSTR
    3780.0
    [m]
    DC
    GEOSTR
    3795.0
    [m]
    DC
    GEOSTR
    3801.0
    [m]
    DC
    GEOSTR
    3807.0
    [m]
    DC
    GEOSTR
    3810.0
    [m]
    DC
    GEOSTR
    3816.0
    [m]
    DC
    GEOSTR
    3819.0
    [m]
    DC
    GEOSTR
    3825.0
    [m]
    DC
    GEOSTR
    3831.0
    [m]
    DC
    GEOSTR
    3837.0
    [m]
    DC
    GEOSTR
    3843.0
    [m]
    DC
    GEOSTR
    3849.0
    [m]
    DC
    GEOSTR
    3855.0
    [m]
    DC
    GEOSTR
    3861.0
    [m]
    DC
    GEOSTR
    3867.0
    [m]
    DC
    GEOSTR
    3870.0
    [m]
    DC
    GEOSTR
    3876.0
    [m]
    DC
    GEOSTR
    3882.0
    [m]
    DC
    GEOSTR
    3885.0
    [m]
    DC
    GEOSTR
    3891.0
    [m]
    DC
    GEOSTR
    3897.0
    [m]
    DC
    GEOSTR
    3900.0
    [m]
    DC
    GEOSTR
    3906.0
    [m]
    DC
    GEOSTR
    3912.0
    [m]
    DC
    GEOSTR
    3915.0
    [m]
    DC
    GEOSTR
    3921.0
    [m]
    DC
    GEOSTR
    3927.0
    [m]
    DC
    GEOSTR
    3930.0
    [m]
    DC
    GEOSTR
    3936.0
    [m]
    DC
    GEOSTR
    3942.0
    [m]
    DC
    GEOSTR
    3945.0
    [m]
    DC
    GEOSTR
    3951.0
    [m]
    DC
    GEOSTR
    3957.0
    [m]
    DC
    GEOSTR
    3960.0
    [m]
    DC
    GEOSTR
    3966.0
    [m]
    DC
    GEOSTR
    3972.0
    [m]
    DC
    GEOSTR
    3975.0
    [m]
    DC
    GEOSTR
    3981.0
    [m]
    DC
    GEOSTR
    3987.0
    [m]
    DC
    GEOSTR
    3990.0
    [m]
    DC
    GEOSTR
    3996.0
    [m]
    DC
    GEOSTR
    4002.0
    [m]
    DC
    GEOSTR
    4005.0
    [m]
    DC
    GEOSTR
    4011.0
    [m]
    DC
    GEOSTR
    4013.0
    [m]
    DC
    GEOSTR