Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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22.12.2024 - 01:25
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7219/12-3 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.
    7219/12-3 S
    Type
    Wellbore type. Legal values: EXPLORATION, DEVELOPMENT, OTHER (see 'Purpose' for more information)
    EXPLORATION
    Purpose
    Final classification of the wellbore.

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

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

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

    BLOWOUT: A blowout has occurred in the well.
    CLOSED: A development wellbore that has been closed in a shorter or longer periode. Also applies to development wellbores where drilling is completed, but production/injection has not yet been reported.
    DRILLING: The well is in the drilling phase - can be active drilling, logging, testing or plugging,
    JUNKED: The drilling operation has been terminated due to technical problems.
    P&A: Exploration: The well is plugged and abandoned, and can not be reentered for further use. Development wells: The production/injection from/to the well is stopped and the well is plugged. The wellhead is removed or else made unavailable for further well operations.
    PLUGGED: The wellbore has been plugged, but the upper parts of the wellbore can be re-used. A sidetrack might be drilled at a later stage.
    PRODUCING: It was produced from the wellbore at the time of the operators last monthly report to the Norwegian Offshore Directorate.
    INJECTING: It was injected to the wellbore at the time of the operators last monthly report to the Norwegian Offshore Directorate.
    PREDRILLED: The upper part of the well has been drilled, usually as part of a batch-drilling campaign covering several wellbores.
    RE-CLASS TO DEV: Exploration wellbore that is reclassified to a development wellbore.
    RE-CLASS TO TEST: Exploration wellbore that is reclassified to test production.
    SUSPENDED: The drilling operation in the wellbore has been temporarily stopped. The current plan is to continue drilling later on.
    P&A
    Press release
    Multilateral
    Indicator telling if the parent well is multilateral, meaning it has more than one branch radiating from the main borehole. Example of legal values: YES, NO. See also Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    NO
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    Main area
    Name of the area on the Norwegian Continental Shelf where the wellbore is located. Legal values: BARENTS SEA, NORWEGIAN SEA, NORTH SEA.
    BARENTS SEA
    Well name
    Official name of the parent well for the wellbore based on Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    7219/12-3
    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.
    Lundin Norway 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.
    1676-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.
    43
    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,
    03.12.2017
    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.
    17.01.2018
    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.
    17.01.2020
    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.
    14.01.2020
    Purpose - planned
    Pre-drill purpose of the wellbore. Legal values for exploration wellbores: WILDCAT, APPRAISAL, WILDCAT-CCS, APPRAISAL-CCS. Example of legal values for development wellbores: OBSERVATION, PRODUCTION, INJECTION.
    WILDCAT
    Content
    For exploration wellbores, status of discovery.

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

    For development wellbores, type of produced/injected fluid.
    Legal values:
    WATER, CUTTINGS, NOT AVAILABLE, OIL, GAS/CONDENSATE, OIL/GAS, CO2, GAS, WATER/GAS, NOT APPLICABLE.
    SHOWS
    Discovery wellbore
    Indicator which tells if the wellbore made a new discovery. Legal values: YES, NO. Prior to press-release or other information regarding drilling results, the indicator will be “NO” as a default.
    NO
    Kelly bushing elevation [m]
    Elevation of the rotary kelly bushing (RKB) above mean sea level.
    25.0
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    313.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    2750.0
    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).
    2707.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    22.5
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    89
    Oldest penetrated age
    Age (according to Geologic Time Scale 2004 by F. M. Gradstein, et al. (2004)) of the oldest penetrated formation. May differ from age at TD for example in deviated wellbores. Examples of legal values: CRETACEOUS, EARLY CRETACEOUS, LATE JURASSIC, EARLY PERMIAN, EARLY TRIASSIC, EOCENE.
    LATE 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.
    FRUHOLMEN FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    72° 12' 3.51'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    19° 43' 2.12'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    8017875.50
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    660804.40
    UTM zone
    Universal Transverse Mercator zone. Examples of legal values: 31, 32, 33, 34.
    33
    NPDID wellbore
    Norwegian Offshore Directorate's unique id for the wellbore.
    8307

  • Wellbore history
    General
    Well 7219/12-3 S was drilled to test the Hurri prospect on the Ringvassøy-Loppa Fault Complex west of the Loppa High in the Barents Sea. The primary objectives were to test the reservoir properties and hydrocarbon potential at Hekkingen Formation/BCU level, and in the Stø Formation. The hydrocarbon potential in the Kolje and Tubåen formations was defined as secondary objectives.
    Operations and results
    Wildcat well 7219/12-3 S was spudded with the semi-submersible installation Leiv Eiriksson on 3 December 2017 and drilled to TD at 2750 m (2707 m TVD) in the Late Triassic Fruholmen Formation. The well was drilled S-shaped with  inclination up to 22.5° in the overburden between 721 and 1726 m, and vertical from there through all target reservoirs to TD. Restrictions in the hole and a leak in the BOP led to 6 days NPT when running the 9 5/8” casing. Otherwise operations proceeded without significant problems. The well was drilled with seawater and hi-vis pills down to 404 m, with KCl/polymer/GEM mud with 3-4.2% glycol from 404 m to 661 m, and with Performadril mud 3 – 5% glycol from 661 m to TD.
    A 67 m thick water-bearing sandstone with poor reservoir quality was encountered at 1980 m (1938 m TVD) in the Kolje Formation. Top Hekkingen Formation was encountered at 2169 m (2127 m TVD). No reservoir was encountered at this level. The Stø Formation was encountered at 2243 m (2201 m TVD) with 100 m water-bearing sandstone of moderate to good reservoir quality. The Nordmela Formation was encountered at 2348 m (2306 m TVD) with a total of  90 m water-bearing sandstone layers of moderate quality. The Tubåen Formation was encountered at 2578 m (2535 m TVD) with 40 m water-bearing sandstone of moderate quality.
    Two siltstone SWC’s at 1955.1 and 1974.4 m in the lower Kolmule Formation had good oil shows with hydrocarbon odour, oil stain, direct fluorescence, cut fluorescence, and residue fluorescence. The Kolje sandstone (1980 to 2047 m) had direct, cut and residue fluorescence. The Stø Formation sandstone (2243 to 2348 m) had direct, cut and residue fluorescence. Geochemical analysis of an SWC sample at 2245 m confirmed a mature migrated oil show in the Upper Stø Formation.
    No cores were cut. No fluid sample was taken.
    The well was permanently abandoned on 17 January 2018 as a dry well with shows.
    Testing
    No drill stem test was performed.

  • Cuttings at the Norwegian Offshore Directorate
    Cuttings at the Norwegian Offshore Directorate
    Cuttings available for sampling?
    YES
    Cuttings at the Norwegian Offshore Directorate
    Cutting sample, top depth [m]
    Cutting samples, bottom depth [m]
    410.00
    2750.00

  • 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
    402.8
    36
    404.0
    0.00
    PILOT HOLE
    499.0
    9 7/8
    499.0
    0.00
    SURF.COND.
    20
    653.8
    26
    661.0
    1.48
    LOT
    INTERM.
    9 5/8
    1755.9
    12 1/4
    1763.0
    1.52
    LOT
    OPEN HOLE
    2750.0
    8 1/2
    2750.0
    0.00

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    FMI PPC MSIP PPC GR JAR
    1755
    2749
    MDT GR
    1842
    1975
    MSCT GR
    1799
    2730
    MWD LWD - GR PWD DIR
    337
    390
    MWD LWD - GR RES AC PWD DIR
    387
    496
    MWD LWD - GR RES PWD DIR
    380
    644
    MWD LWD - RES GR DEN NEU CAL AC
    621
    2750
    XPT HRLA PEX ECS HNGS GR JAR
    1755
    2737
    ZO VSP
    616
    2735

  • Lithostratigraphy

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    380
    1.50
    17.0
    KCL/Polymer/GEM
    402
    1.50
    17.0
    KCL/Polymer/GEM
    403
    1.05
    1.0
    Bentonite Spud Mud
    403
    1.30
    16.0
    KCL/Polymer/GEM
    420
    1.30
    14.0
    KCL/Polymer/GEM
    503
    1.03
    1.0
    Other
    547
    1.30
    20.0
    KCL/Polymer/GEM
    610
    1.24
    19.0
    PERFORMADRIL
    625
    1.30
    21.0
    KCL/Polymer/GEM
    661
    1.30
    14.0
    KCL/Polymer/GEM
    661
    1.39
    20.0
    KCL/Polymer/GEM
    661
    1.20
    17.0
    PERFORMADRIL
    808
    1.20
    18.0
    PERFORMADRIL
    961
    1.24
    21.0
    PERFORMADRIL
    1556
    1.22
    19.0
    PERFORMADRIL
    1556
    1.24
    19.0
    PERFORMADRIL
    1756
    1.21
    17.0
    PERFORMADRIL
    1763
    1.24
    19.0
    PERFORMADRIL
    2402
    1.23
    24.0
    PERFORMADRIL
    2448
    1.24
    23.0
    PERFORMADRIL
    2517
    1.23
    24.0
    PERFORMADRIL
    2655
    1.21
    23.0
    PERFORMADRIL
    2740
    1.22
    21.0
    PERFORMADRIL
    2750
    1.21
    22.0
    PERFORMADRIL