Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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22.11.2024 - 09:09
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6407/2-6 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.
    6407/2-6 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.
    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 Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    6407/2-6
    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 Norwegian Offshore Directorate.
    1304-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.
    41
    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,
    03.04.2010
    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.
    13.05.2010
    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.
    13.05.2012
    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.
    13.05.2012
    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.
    OIL/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.
    EARLY 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 Norwegian Offshore Directorate bulletins.
    TOFTE 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.
    EARLY 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.
    TILJE FM
    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.
    252.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    3230.0
    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).
    3188.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    19
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    118
    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.
    64° 46' 17.2'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    7° 36' 19'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    7183892.38
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    433668.92
    UTM zone
    Universal Transverse Mercator zone. Examples of legal values: 31, 32, 33, 34.
    32
    NPDID wellbore
    Norwegian Offshore Directorate's unique id for the wellbore.
    6351

  • Wellbore history
    General
    Well 6407/2-6 S was drilled ca 4 km northwest of the Mikkel field and ca 8 km south of the 6407/2-5 S Nona discovery in the Norwegian Sea. The objective was to prove and encounter an economic volume of hydrocarbons in the Early Jurassic Tilje Formation. A secondary objective was to prove hydrocarbons in the Early Jurassic Ror Formation.
    Operations and results
    Wildcat well 6407/2-6 S was spudded with the semi-submersible installation Ocean Vanguard on 3 April 2010 and drilled to TD at 3230 m (3188 m TVD) in the Early Jurassic Åre Formation. During drilling of the 17 1/2" hole, a distinct drilling break was observed at 1086 m. GR logs from this zone indicated clean sandstone and the resistivity log indicated water. It was concluded that the sandstone was water wet with some dissolved gas. No significant problems were encountered in the operations. The well was drilled with seawater and hi-vis pills down to 609 m, with KCl/Glycol mud from 609 m to 1313 m, and with XP-07 oil based mud from 1313 m to TD.
    The Tofte Formation was encountered at 2916.9 m (2887.6 TVD). Weak oil shows and high gas readings indicated gas in the Tofte Formation, but this was not verified logs and pressure data in the potential reservoir sands. The Tilje Formation was penetrated at 2993.2 m (2960 m TVD), which was 37 m shallower than prognosed. A 72 m TVD gas column and a 15 m TVD oil column were proven in the Tilje Formation. No oil shows were reported above Tofte Formation or below Tilje Formation.
    Two cores were cut in the intervals 2997 - 3051.5 m and 3070 - 3125 m, both in the Tilje Formation. Fluid samples were taken with the MDT single probe equipment. Gas was sampled at 2940 m in the Ror Formation and at 2994.06 m in the Tilje Formation, oil was sampled at 3068.9 m and 3078.3 m, while water was sampled at 3096.6 m in the Tilje formation. The Tilje oil sample at 3078.3 m analysed offshore contained only 1% mud contamination, while the sample at 3068.9 m had a mud contamination of 12 %.
    The well was permanently abandoned on 13 May 2010 as an oil and 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]
    1320.00
    3228.00

  • 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
    2997.0
    3051.3
    [m ]
    2
    3070.0
    3125.2
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    109.5
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    YES

  • Oil samples at the Norwegian Offshore Directorate
    Oil samples at the Norwegian Offshore Directorate
    Test type
    Bottle number
    Top depth
    MD [m]
    Bottom depth
    MD [m]
    Fluid type
    Test time
    Samples available
    DST
    2961.60
    0.00
    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
    336.0
    36
    345.0
    0.00
    LOT
    SURF.COND.
    20
    605.0
    26
    609.0
    1.30
    LOT
    PILOT HOLE
    811.0
    9 7/8
    811.0
    0.00
    LOT
    INTERM.
    13 3/8
    1306.0
    17 1/2
    1313.0
    1.67
    LOT
    INTERM.
    9 5/8
    2925.0
    12 1/4
    2929.0
    2.02
    LOT
    OPEN HOLE
    3230.0
    8 1/2
    3230.0
    0.00
    LOT

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    CMR ECS
    2850
    3227
    FTWD
    3078
    3079
    MDT
    2940
    3097
    MDT
    2940
    3206
    MWD - ARCVRES8 TELE
    274
    811
    MWD - ARCVRES9 TELESCOPE
    339
    1310
    MWD - GVR6 ARCVRES6 TELESCOPE
    3069
    3230
    MWD - PD ARCVRES8 TELESCOPE
    1310
    2926
    MWD - TELESCOPE
    274
    335
    PEX AIT
    2925
    3236
    PPC MSIP PPC
    1425
    3213
    VSP
    600
    3225

  • Lithostratigraphy

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    610
    1.10
    21.0
    Spud Mud
    1056
    1.09
    15.0
    Spud Mud
    1310
    1.54
    25.0
    XP-07 - #14
    1310
    1.16
    12.0
    Spud Mud
    1615
    1.54
    31.0
    XP-07 - #14
    3052
    1.22
    16.0
    XP-07 - #14
    3230
    1.24
    16.0
    XP-07 - #14
    3230
    1.22
    15.0
    XP-07 - #14

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    1330.0
    [m]
    DC
    GEOSTRAT
    1350.0
    [m]
    DC
    GEOSTR
    1370.0
    [m]
    DC
    GEOSTR
    1390.0
    [m]
    DC
    GEOSTR
    1410.0
    [m]
    DC
    GEOSTR
    1430.0
    [m]
    DC
    GEOSTR
    1450.0
    [m]
    DC
    GEOSTR
    1470.0
    [m]
    DC
    GEOSTR
    1490.0
    [m]
    DC
    GEOSTR
    1510.0
    [m]
    DC
    GEOSTR
    1530.0
    [m]
    DC
    GEOSTR
    1550.0
    [m]
    DC
    GEOSTR
    1570.0
    [m]
    DC
    GEOSTR
    1590.0
    [m]
    DC
    GEOSTR
    1610.0
    [m]
    DC
    GEOSTR
    1630.0
    [m]
    DC
    GEOSTR
    1650.0
    [m]
    DC
    GEOSTR
    1670.0
    [m]
    DC
    GEOSTR
    1690.0
    [m]
    DC
    GEOSTR
    1720.0
    [m]
    DC
    GEOSTR
    1730.0
    [m]
    DC
    GEOSTR
    1750.0
    [m]
    DC
    GEOSTR
    1770.0
    [m]
    DC
    GEOSTR
    1790.0
    [m]
    DC
    GEOSTR
    1810.0
    [m]
    DC
    GEOSTR
    1830.0
    [m]
    DC
    GEOSTR
    1850.0
    [m]
    DC
    GEOSTR
    1870.0
    [m]
    DC
    GEOSTR
    1890.0
    [m]
    DC
    GEOSTR
    1910.0
    [m]
    DC
    GEOSTR
    1930.0
    [m]
    DC
    GEOSTR
    1950.0
    [m]
    DC
    GEOSTR
    1970.0
    [m]
    DC
    GEOSTR
    1990.0
    [m]
    DC
    GEOSTR
    2010.0
    [m]
    DC
    GEOSTR
    2020.0
    [m]
    DC
    GEOSTR
    2070.0
    [m]
    DC
    GEOSTR
    2090.0
    [m]
    DC
    GEOSTR
    2110.0
    [m]
    DC
    GEOSTR
    2130.0
    [m]
    DC
    GEOSTR
    2150.0
    [m]
    DC
    GEOSTR
    2170.0
    [m]
    DC
    GEOSTR
    2190.0
    [m]
    DC
    GEOSTR
    2210.0
    [m]
    DC
    GEOSTR
    2220.0
    [m]
    DC
    GEOSTR
    2240.0
    [m]
    DC
    GEOSTR
    2260.0
    [m]
    DC
    GEOSTR
    2280.0
    [m]
    DC
    GEOSTR
    2300.0
    [m]
    DC
    GEOSTR
    2320.0
    [m]
    DC
    GEOSTR
    2340.0
    [m]
    DC
    GEOSTR
    2360.0
    [m]
    DC
    GEOSTR
    2380.0
    [m]
    DC
    GEOSTR
    2400.0
    [m]
    DC
    GEOSTR
    2420.0
    [m]
    DC
    GEOSTR
    2440.0
    [m]
    DC
    GEOSTR
    2460.0
    [m]
    DC
    GEOSTR
    2480.0
    [m]
    DC
    GEOSTR
    2500.0
    [m]
    DC
    GEOSTR
    2520.0
    [m]
    DC
    GEOSTR
    2540.0
    [m]
    DC
    GEOSTR
    2560.0
    [m]
    DC
    GEOSTR
    2580.0
    [m]
    DC
    GEOSTR
    2600.0
    [m]
    DC
    GEOSTR
    2620.0
    [m]
    DC
    GEOSTR
    2640.0
    [m]
    DC
    GEOSTR
    2652.0
    [m]
    DC
    GEOSTR
    2660.0
    [m]
    DC
    GEOSTR
    2680.0
    [m]
    DC
    GEOSTR
    2700.0
    [m]
    DC
    GEOSTR
    2720.0
    [m]
    DC
    GEOSTR
    2740.0
    [m]
    DC
    GEOSTR
    2760.0
    [m]
    DC
    GEOSTR
    2766.0
    [m]
    DC
    GEOSTR
    2772.0
    [m]
    DC
    GEOSTR
    2778.0
    [m]
    DC
    GEOSTR
    2784.0
    [m]
    DC
    GEOSTR
    2790.0
    [m]
    DC
    GEOSTR
    2796.0
    [m]
    DC
    GEOSTR
    2802.0
    [m]
    DC
    GEOSTR
    2808.0
    [m]
    DC
    GEOSTR
    2814.0
    [m]
    DC
    GEOSTR
    2820.0
    [m]
    DC
    GEOSTR
    2826.0
    [m]
    DC
    GEOSTR
    2832.0
    [m]
    DC
    GEOSTR
    2838.0
    [m]
    DC
    GEOSTR
    2844.0
    [m]
    DC
    GEOSTR
    2850.0
    [m]
    DC
    GEOSTR
    2856.0
    [m]
    DC
    GEOSTR
    2862.0
    [m]
    DC
    GEOSTR
    2862.0
    [m]
    DC
    GEOSTR
    2868.0
    [m]
    DC
    GEOSTR
    2874.0
    [m]
    DC
    GEOSTR
    2880.0
    [m]
    DC
    GEOSTR
    2886.0
    [m]
    DC
    GEOSTR
    2898.0
    [m]
    DC
    GEOSTR
    2904.0
    [m]
    DC
    GEOSTR
    2910.0
    [m]
    DC
    GEOSTR
    2916.0
    [m]
    DC
    GEOSTR
    2922.0
    [m]
    DC
    GEOSTR
    2928.0
    [m]
    DC
    GEOSTR
    2934.0
    [m]
    DC
    GEOSTR
    2940.0
    [m]
    DC
    GEOSTR
    2946.0
    [m]
    DC
    GEOSTR
    2958.0
    [m]
    DC
    GEOSTR
    2964.0
    [m]
    DC
    GEOSTR
    2970.0
    [m]
    DC
    GEOSTR
    2976.0
    [m]
    DC
    GEOSTR
    2982.0
    [m]
    DC
    GEOSTR
    2988.0
    [m]
    DC
    GEOSTR
    2994.0
    [m]
    DC
    GEOSTR
    2997.2
    [m]
    C
    GEOSTR
    3002.0
    [m]
    C
    GEOSTR
    3007.4
    [m]
    C
    GEOSTR
    3010.8
    [m]
    C
    GEOSTR
    3015.8
    [m]
    C
    GEOSTR
    3019.4
    [m]
    C
    GEOSTR
    3024.9
    [m]
    C
    GEOSTR
    3029.8
    [m]
    C
    GEOSTR
    3035.7
    [m]
    C
    GEOSTR
    3039.2
    [m]
    C
    GEOSTR
    3044.2
    [m]
    C
    GEOSTR
    3048.3
    [m]
    C
    GEOSTR
    3054.0
    [m]
    DC
    GEOSTR
    3060.0
    [m]
    DC
    GEOSTR
    3066.0
    [m]
    DC
    GEOSTR
    3070.2
    [m]
    C
    GEOSTR
    3074.9
    [m]
    C
    GEOSTR
    3078.3
    [m]
    C
    GEOSTR
    3082.6
    [m]
    C
    GEOSTR
    3086.2
    [m]
    C
    GEOSTR
    3091.0
    [m]
    C
    GEOSTR
    3094.5
    [m]
    C
    GEOSTR
    3099.2
    [m]
    C
    GEOSTR
    3103.8
    [m]
    C
    GEOSTR
    3107.2
    [m]
    C
    GEOSTR
    3117.0
    [m]
    C
    GEOSTR
    3123.3
    [m]
    C
    GEOSTR