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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6302/6-1

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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.
    6302/6-1
    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
    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.
    NORWEGIAN SEA
    Discovery
    Name of the discovery the wellbore is related to.
    Well name
    Official name of the parent well for the wellbore based on Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    6302/6-1
    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.
    Statoil ASA (old)
    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.
    1093-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.
    103
    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,
    24.06.2005
    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.
    04.10.2005
    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.
    04.10.2007
    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.
    21.12.2007
    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.
    GAS
    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 Norwegian Offshore Directorate bulletins.
    DANIAN
    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 Norwegian Offshore Directorate bulletins.
    NO FORMAL NAME
    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.
    1261.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    4234.0
    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).
    4234.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    2.7
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    112
    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 CRETACEOUS
    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.
    SPRINGAR FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    63° 31' 38.43'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    2° 45' 51.56'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    7044540.65
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    488277.59
    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.
    5086

  • Wellbore history
    General
    Block 6302/6 is situated in deep water in the western part of the Møre Basin in the Norwegian Sea with well 6302/6-1 located ca 100 km west of the Ormen Lange Field. At the well location the Quaternary North Sea Fan (Naust Formation) is very thick. No other wells have penetrated such thicknesses of North Sea Fan sediments. The primary objective of the well was to prove hydrocarbons in sandstone of Danian age (Paleocene) in the Rogaland Group. Total depth of the well was estimated to be 4375 m, in the Late Cretaceous Springar Formation.
    Operations and results
    Well 6302/6-U-1 was spudded semi-submersible installation Eirik Raude on 1 June 2005 and was drilled without significant problems to a total depth of 2122 m. At this depth a water flow was observed in the lower part of the North Sea Fan. After pumping kill mud in several steps, the well was proven stable. The 20" casing was set and cemented with shoe at 2116 m. Water flow was still observed. The well was then abandoned due to the ongoing water flow.
    Well 6302/6-1 was then spudded with Eirik Raude 62.5 m southwest of 6302/6-U-1 on 24 June 2006 and in a water depth of 1260.5 m MSL. No shallow gas was observed by the ROV at the wellhead. It was drilled to a total depth of 4234 m (loggers depth) in the Late Cretaceous Springar Formation. The well was drilled with seawater and hi-vis pills down to 1965 m and with Glydril Deepwater mud from 1965 m to TD.
    The well penetrated rocks of Quaternary, Tertiary and Cretaceous age. An interbedded sandstone reservoir section with a total thickness of approximately 100 m was penetrated at 3901 m in the lower section of the Rogaland Group, slightly shallower than prognosed. A large data acquisition programme was performed. A minor gas discovery was proven in the upper part of the reservoir section. Unexpectedly, several thick limestone beds were found in the transition zone between the Palaeocene and the Late Maastrichtian. These beds were between 5 and 20 m thick and with a gross thickness of 35 - 40 m.
    Three cores were cut in the interval 3903 - 3941.5 m in Danian age sandstone of the Rogaland Group. A total of 15.7 m was recovered from the three cores. MDT fluid samples were taken at 3903 m (gas), 3920.8 m (water), 3937 m (water), and 3952.2 m (gas).
    The well was permanently abandoned on 4 October 2005 as a gas discovery.
    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]
    1975.00
    4230.00

  • 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
    3903.0
    3910.7
    [m ]
    2
    3911.6
    3916.3
    [m ]
    3
    3936.0
    3939.1
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    15.5
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    YES

  • 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
    1363.0
    36
    1363.0
    0.00
    LOT
    SURF.COND.
    20
    1960.0
    26
    1960.0
    1.29
    LOT
    INTERM.
    16
    2380.0
    17 1/2
    2380.0
    1.60
    LOT
    INTERM.
    13 3/8
    3035.0
    17 1/2
    3035.0
    1.49
    LOT
    INTERM.
    9 5/8
    3840.0
    12 1/4
    3840.0
    1.72
    LOT
    OPEN HOLE
    4230.0
    8 1/2
    4230.0
    0.00
    LOT

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    CSI
    1305
    3015
    CSI
    2000
    4225
    FMI MSIP
    3600
    4230
    MDT
    3902
    4139
    MDT
    3920
    3968
    MDT
    3937
    3937
    MSCT
    3124
    3826
    MSCT
    3901
    4218
    MSCT
    3939
    4218
    MWD - MPR DCP
    1366
    4230
    PEX DSI HRLA
    2319
    3018
    PEX DSI HRLA
    3035
    3844
    PEX HRLA CMR HNGS
    3200
    4230
    VSP
    1315
    4237

  • Lithostratigraphy
    Lithostratigraphy
    Top depth [mMD RKB]
    Lithostrat. unit
    1286
    1286
    2463
    2582
    2582
    3223
    3223
    3395
    3901
    4080
    4080

  • Composite logs
    Composite logs
    Document name
    Document format
    Document size [MB]
    pdf
    0.56

  • Geochemical information
    Geochemical information
    Document name
    Document format
    Document size [MB]
    txt
    0.00
    txt
    0.18
    pdf
    0.51
    pdf
    3.21

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    1332
    1.05
    BENTONITE/SW 1
    1367
    1.05
    SW / BENTONITE 1
    1849
    1.05
    SW / POLYMER 2
    1968
    1.18
    16.0
    GLYDRIL DW 36
    2102
    1.23
    16.0
    GLYDRIL DW 36
    2390
    1.24
    14.0
    GLYDRIL DW 37
    3046
    1.37
    19.0
    GLYDRIL DW 37
    3060
    1.39
    19.0
    GLYDRIL DW 37
    3845
    1.39
    22.0
    GLYDRIL DW 37
    3902
    1.37
    20.0
    GLYDRIL DW 37
    3918
    1.56
    30.0
    GLYDRIL DW 36
    3941
    1.56
    30.0
    GLYDRIL DW 36
    3996
    1.56
    27.0
    GLYDRIL DW 36

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    4050.5
    [m]
    C
    OD
    4050.5
    [m]
    SWC
    OD
    4087.5
    [m]
    C
    OD
    4087.5
    [m]
    SWC
    OD
    4097.0
    [m]
    SWC
    OD
    4097.0
    [m]
    C
    OD
    4121.0
    [m]
    C
    OD
    4121.0
    [m]
    SWC
    OD
    4131.0
    [m]
    SWC
    OD
    4131.0
    [m]
    C
    OD
    4209.5
    [m]
    C
    OD
    4209.5
    [m]
    SWC
    OD

  • Thin sections at the Norwegian Offshore Directorate
    Thin sections at the Norwegian Offshore Directorate
    Depth
    Unit
    4134.00
    [m ]
    3910.58
    [m ]
    3906.95
    [m ]