Factpages Norwegian petroleum directorate
Factpages Norwegian petroleum directorate
NPD          Norsk
28.05.2023 - 01:45
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6506/9-3

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  • General information

    General information
    Attribute Value
    Wellbore name
    Official name of wellbore based on NPD guidelines for designation of wells and wellbores.
    6506/9-3
    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 NPD.
    INJECTING: It was injected to the wellbore at the time of the operators last monthly report to the NPD.
    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.
    NORWEGIAN 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 NPD guidelines for designation of wells and wellbores.
    6506/9-3
    Seismic location
    Position of spud location on seismic survey lines. SP: shotpoint.
    ST9905R04:inline 4190/xline1673.Depth target 4231 mTVD
    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.
    Statoil Petroleum AS
    Drill permit
    The drilling permit number together with the version of the drilling permit as stated in the drilling permit granted by the NPD.
    1455-L
    Drilling facility
    NPD's name of the facility which the wellbore was drilled from.
    Drilling days
    Number of days from wellbore entry to wellbore completion.
    73
    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,
    16.06.2013
    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.
    27.08.2013
    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.
    27.08.2015
    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.
    27.08.2015
    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 NPD 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 NPD bulletins.
    GARN 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.
    MIDDLE JURASSIC
    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.
    ILE FM
    Kelly bushing elevation [m]
    Elevation of the rotary kelly bushing (RKB) above mean sea level.
    23.5
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    302.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    4692.0
    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).
    4691.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    5
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    170
    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.
    ÅRE FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    65° 15' 5.03'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    6° 54' 15.61'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    7238280.29
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    402114.39
    UTM zone
    Universal Transverse Mercator zone. Examples of legal values: 31, 32, 33, 34.
    32
    NPDID wellbore
    NPD's unique id for the wellbore.
    7207
  • Wellbore history

    General
    Well 6506/9-3, was drilled on the Smørbukk Nord prospect on the Halten Terrace in the Norwegian Sea. The primary objective was to prove petroleum in the Middle - Early Jurassic Garn, Ile and Tofte formations. The secondary objective was to prove petroleum in the Early Jurassic Ror, Tilje and Åre formations. A third objective was to test for possible hydrocarbon bearing sands in Early Cretaceous intra-Lange Formation sandstones.
    Operations and results
    Wildcat well 6506/9-3 was spudded with the semi-submersible installation Transocean Leader on 16 June 2013 and drilled to TD at 4692 m in the Early Jurassic Åre Formation. There were no gas warnings at the location and no shallow gas was seen. Operations proceeded without significant problems. The well was drilled with seawater and hi-vis sweeps down to 1171 m and with XP-07 oil based mud from 1171 m to TD.
    Thin, partially calcite cemented sand stringers with fair gas saturation were penetrated in the Lange Formation between 3723 m and 3885 m. The well encountered a gas/condensate column of 47 metres in the Garn and upper Not formations with a down-to contact at 4284 m. The reservoir characteristics are good in the Garn and upper Not formations, while they are somewhat poorer than expected in the Ile formation. The Ile Formation proved gas condensate in the MDT sample at 4305.7 and oil in the sample at 4346 m. Geochemical analysis of the cores indicate a gas-oil contact at 4346 m and an oil down to at 4348 m. The deeper Tofte and Tilje formations contain some gas in a tight reservoir; the Åre Formation is water-wet.
    A total of 132.6 m core was recovered in two cores from the interval 4241 m to 4385 m in the Garn, Not and Ile formations. The core to log depth shift was +4.5 m for core 1 and +4.0 m for core 2. MDT fluid samples were taken at 4250.9 m (gas condensate), 4305.7 m (gas condensate), and at 4346 m (water and oil). All samples were highly contaminated with mud filtrate.
    The well was permanently abandoned on 27 August 2013 as a gas/condensate discovery.
    Testing
    No drill stem test was performed.
  • Cuttings at the NPD

    Cuttings at the NPD
    Cuttings available for sampling?
    YES
    Cuttings at the NPD
    Cutting sample, top depth [m]
    Cutting samples, bottom depth [m]
    1180.00
    4692.00
  • Cores at the NPD

    Cores at the NPD
    Core sample number
    Core sample - top depth
    Core sample - bottom depth
    Core sample depth - uom
    1
    4241.0
    4292.8
    [m ]
    2
    4304.0
    4384.8
    [m ]
    Cores at the NPD
    Total core sample length [m]
    132.6
    Cores at the NPD
    Cores available for sampling?
    YES
  • Oil samples at the NPD

    Oil samples at the NPD
    Test type
    Bottle number
    Top depth
    MD [m]
    Bottom depth
    MD [m]
    Fluid type
    Test time
    Samples available
    MDT
    4250.90
    0.00
    CONDENSATE
    16.08.2013 - 00:00
    YES
    MDT
    0.00
    4305.70
    CONDENSATE
    16.08.2013 - 00:00
    YES
  • Lithostratigraphy

  • Logs

    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    AIT MSIP LDS APS GR
    3700
    4696
    CMR ECS HNGS
    4153
    4690
    MDT
    4238
    4373
    MDT
    4250
    4628
    MDT
    4333
    4333
    MDT MINIDST VIT
    4346
    4346
    MWD - ARC TELE
    391
    1171
    MWD - GVR ECO TELE
    4151
    4692
    MWD - PDX5 ARC SAD TELE
    1171
    4151
    SBT GR CCL
    1774
    4075
    VSP
    311
    4412
  • 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
    388.5
    36
    391.0
    0.00
    SURF.COND.
    20
    1163.0
    26
    1171.0
    1.68
    FIT
    INTERM.
    14
    2194.3
    17 1/2
    2201.0
    1.83
    FIT
    INTERM.
    9 5/8
    4150.0
    12 1/4
    4151.0
    1.98
    FIT
    OPEN HOLE
    4692.0
    8 1/2
    4692.0
    0.00
  • Drilling mud

    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    485
    1.40
    13.0
    XP-07 - Yellow
    600
    1.60
    39.0
    XP-07 - Yellow
    602
    1.41
    10.0
    XP-07 - Yellow
    1596
    1.45
    32.0
    XP-07 - Yellow
    1857
    1.82
    49.0
    OBM-Low ECD-HTHP
    2201
    1.60
    38.0
    XP-07 - Yellow
    2310
    1.72
    29.0
    XP-07 - Yellow
    2950
    1.82
    47.0
    OBM-Low ECD-HTHP
    3925
    1.82
    45.0
    OBM-Low ECD-HTHP
    3995
    1.72
    33.0
    XP-07 - Yellow
    4151
    1.72
    34.0
    XP-07 - Yellow
    4297
    1.82
    35.0
    OBM-Low ECD-HTHP
    4692
    1.82
    38.0
    OBM-Low ECD-HTHP