Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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25.11.2024 - 01:30
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7325/1-1

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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.
    7325/1-1
    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
    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.
    BARENTS 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.
    7325/1-1
    Seismic location
    Position of spud location on seismic survey lines. SP: shotpoint.
    3D survey MC3D-HFC09-inline 2215 & xline 8697
    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.
    1526-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.
    29
    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,
    23.06.2014
    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.
    21.07.2014
    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.
    21.07.2016
    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.
    21.07.2016
    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
    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.
    LATE TRIASSIC
    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.
    SNADD FM
    Kelly bushing elevation [m]
    Elevation of the rotary kelly bushing (RKB) above mean sea level.
    40.0
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    447.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    2865.0
    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).
    2865.0
    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.
    110
    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 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.
    HAVERT FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    73° 54' 48.7'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    25° 7' 0.17'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    8203538.99
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    441758.31
    UTM zone
    Universal Transverse Mercator zone. Examples of legal values: 31, 32, 33, 34.
    35
    NPDID wellbore
    Norwegian Offshore Directorate's unique id for the wellbore.
    7501

  • Wellbore history
    General
    Well 7325/1-1 was drilled to test the Atlantis prospect on the western flank of the Hoop Fault Complex in the Barents Sea. The clinoforms of the Upper Kobbe Formation were the main target. Secondary targets included Carnian fluvial/estuarine channel sandstones within the Snadd Formation, possible sand development in the middle/lower part of the Kobbe Formation and shallow marine sandstone in the uppermost Klappmyss Formation
    Operations and results
    The top interval of the well was drilled according to plan with good parameters, but at 695 m bit, stalling occurred causing no further progress with drilling. The well was given the name 7325/1-U-1 and the well was respudded.
    Wildcat well 7325/1-1 was spudded with the semi-submersible installation Transocean Spitsbergen on 23 June 2014 and drilled to TD at 2865 m in the Early Triassic Havert Formation. No significant problem was encountered in the operations. The well was drilled with seawater and sweeps down to 835 m, with KCl/polymer/GEM mud from 835 m to 1696 m, and with Low sulphate KCl/polymer/GEM mud from 1696 m to TD.
    Well 7325/1-1 encountered about 55 metres net of reservoir rocks in the Snadd Formation, of which ten metres were gas-filled between 1547.5 and 1560.5 m. Based on the well logs the presence of live HC in several other sand layers in Snadd, Kobbe and Havert formations cannot be ruled out. Poor reservoir properties prevented establishment of pressure gradients and true hydrocarbon/water contacts. Sandstone was not proven in the Klappmyss Formation; however, about ten metres gross of poor quality sandstone was proven in the Early Triassic Havert Formation.
    The Stø/Fruholmen formations had oil shows (fluorescence and cut) at 891 - 906 m (Stø/Fruholmen), while the Snadd Formation had oil shows in numerous sandy intervals between 990 and 1580 m.
    No coring was performed due to uncertainties around the presence of hydrocarbons while drilling.  MDT fluid samples were taken at 904 m (water) and 1555.3 m (gas).
    The well was permanently abandoned on 21 July as a technical 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]
    840.00
    2865.00

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    840.0
    [m]
    DC
    ROBERTSO
    846.0
    [m]
    DC
    ROBERT
    847.0
    [m]
    SWC
    ROBERT
    852.0
    [m]
    DC
    ROBERT
    854.0
    [m]
    SWC
    ROBERT
    858.0
    [m]
    DC
    ROBERT
    864.0
    [m]
    DC
    ROBERT
    870.0
    [m]
    DC
    ROBERT
    876.0
    [m]
    DC
    ROBERT
    876.0
    [m]
    SWC
    ROBERT
    882.0
    [m]
    DC
    ROBERT
    888.0
    [m]
    DC
    ROBERT
    894.0
    [m]
    DC
    ROBERT
    900.0
    [m]
    DC
    ROBERT
    903.5
    [m]
    SWC
    ROBERT
    906.0
    [m]
    DC
    ROBERT
    912.0
    [m]
    DC
    ROBERT
    918.0
    [m]
    DC
    ROBERT
    924.0
    [m]
    DC
    ROBERT
    930.0
    [m]
    DC
    ROBERT
    947.0
    [m]
    SWC
    ROBERT
    950.0
    [m]
    DC
    ROBERT
    970.0
    [m]
    DC
    ROBERT
    990.0
    [m]
    DC
    ROBERT
    1010.0
    [m]
    DC
    ROBERT
    1030.0
    [m]
    DC
    ROBERT
    1050.0
    [m]
    DC
    ROBERT
    1070.0
    [m]
    DC
    ROBERT
    1090.0
    [m]
    DC
    ROBERT
    1110.0
    [m]
    DC
    ROBERT
    1130.0
    [m]
    DC
    ROBERT
    1150.0
    [m]
    DC
    ROBERT
    1170.0
    [m]
    DC
    ROBERT
    1190.0
    [m]
    DC
    ROBERT
    1210.0
    [m]
    DC
    ROBERT
    1230.0
    [m]
    DC
    ROBERT
    1249.0
    [m]
    SWC
    ROBERT
    1250.0
    [m]
    DC
    ROBERT
    1270.0
    [m]
    DC
    ROBERT
    1290.0
    [m]
    DC
    ROBERT
    1310.0
    [m]
    DC
    ROBERT
    1330.0
    [m]
    DC
    ROBERT
    1350.0
    [m]
    DC
    ROBERT
    1370.0
    [m]
    DC
    ROBERT
    1390.0
    [m]
    DC
    ROBERT
    1410.0
    [m]
    DC
    ROBERT
    1430.0
    [m]
    DC
    ROBERT
    1450.0
    [m]
    DC
    ROBERT
    1470.0
    [m]
    DC
    ROBERT
    1490.0
    [m]
    DC
    ROBERT
    1510.0
    [m]
    DC
    ROBERT
    1530.0
    [m]
    DC
    ROBERT
    1550.0
    [m]
    DC
    ROBERT
    1565.0
    [m]
    DC
    ROBERT
    1580.0
    [m]
    DC
    ROBERT
    1584.5
    [m]
    SWC
    ROBERT
    1600.0
    [m]
    DC
    ROBERT
    1620.0
    [m]
    DC
    ROBERT
    1640.0
    [m]
    DC
    ROBERT
    1652.0
    [m]
    SWC
    ROBERT
    1660.0
    [m]
    DC
    ROBERT
    1680.0
    [m]
    DC
    ROBERT
    1696.0
    [m]
    DC
    ROBERT
    1717.0
    [m]
    DC
    ROBERT
    1726.0
    [m]
    DC
    ROBERT
    1747.0
    [m]
    DC
    ROBERT
    1756.0
    [m]
    DC
    ROBERT
    1765.0
    [m]
    DC
    ROBERT
    1786.0
    [m]
    DC
    ROBERT
    1791.0
    [m]
    SWC
    ROBERT
    1795.0
    [m]
    DC
    ROBERT
    1810.0
    [m]
    DC
    ROBERT
    1843.0
    [m]
    DC
    ROBERT
    1855.0
    [m]
    DC
    ROBERT
    1864.0
    [m]
    DC
    ROBERT
    1872.0
    [m]
    SWC
    ROBERT
    1873.0
    [m]
    DC
    ROBERT
    1900.0
    [m]
    DC
    ROBERT
    1918.0
    [m]
    DC
    ROBERT
    1927.0
    [m]
    DC
    ROBERT
    1945.0
    [m]
    DC
    ROBERT
    1946.0
    [m]
    SWC
    ROBERT
    1966.0
    [m]
    DC
    ROBERT
    1975.0
    [m]
    DC
    ROBERT
    1996.0
    [m]
    DC
    ROBERT
    2005.0
    [m]
    DC
    ROBERT
    2023.0
    [m]
    DC
    ROBERT
    2044.0
    [m]
    DC
    ROBERT
    2050.0
    [m]
    DC
    ROBERT
    2050.0
    [m]
    SWC
    ROBERT
    2068.0
    [m]
    DC
    ROBERT
    2080.0
    [m]
    DC
    ROBERT
    2124.1
    [m]
    SWC
    ROBERT
    2225.8
    [m]
    SWC
    ROBERT
    2250.0
    [m]
    DC
    ROBERT
    2267.8
    [m]
    SWC
    ROBERT
    2300.0
    [m]
    DC
    ROBERT
    2315.4
    [m]
    SWC
    ROBERT
    2328.0
    [m]
    DC
    ROBERT
    2343.0
    [m]
    DC
    ROBERT
    2348.7
    [m]
    SWC
    ROBERT
    2370.0
    [m]
    DC
    ROBERT
    2400.0
    [m]
    DC
    ROBERT
    2415.0
    [m]
    DC
    ROBERT
    2427.0
    [m]
    SWC
    ROBERT
    2439.0
    [m]
    DC
    ROBERT
    2454.0
    [m]
    DC
    ROBERT
    2496.0
    [m]
    DC
    ROBERT
    2512.5
    [m]
    SWC
    ROBERT
    2553.0
    [m]
    DC
    ROBERT
    2560.0
    [m]
    SWC
    ROBERT
    2577.0
    [m]
    DC
    ROBERT
    2670.0
    [m]
    DC
    ROBERT
    2674.7
    [m]
    SWC
    ROBERT
    2725.5
    [m]
    SWC
    ROBERT
    2740.0
    [m]
    DC
    ROBERT
    2759.1
    [m]
    SWC
    ROBERT
    2759.1
    [m]
    SWC
    ROBERT
    2760.0
    [m]
    DC
    ROBERT
    2760.0
    [m]
    DC
    ROBERT
    2767.0
    [m]
    SWC
    ROBERT
    2767.0
    [m]
    SWC
    ROBERT
    2770.0
    [m]
    DC
    ROBERT
    2790.0
    [m]
    DC
    ROBERT
    2800.0
    [m]
    DC
    ROBERT
    2860.0
    [m]
    DC
    ROBERT

  • Lithostratigraphy

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    FMI GR
    824
    1694
    FMIHD PPC MSIP PPC GR
    1565
    2853
    HRLA PEX ECSGR
    1515
    2864
    MDT GR
    891
    1695
    MDT GR
    1890
    2817
    MSCT GR
    847
    1652
    MSCT GR
    848
    1652
    MSCT GR
    1791
    2850
    MWD - ARC TELE
    539
    835
    MWD - ARC TELE PD
    1696
    2865
    RT HRLA SON PEX ECS GR
    505
    1695
    USIT CBL GR
    512
    755
    USIT CBL GR
    855
    1685
    VSP GR
    553
    2855

  • 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
    537.6
    36
    539.0
    0.00
    INTERM.
    13 3/8
    825.0
    17 1/2
    835.0
    0.00
    LINER
    9 5/8
    1690.0
    12 1/4
    1696.0
    0.00
    OPEN HOLE
    2865.0
    8 1/2
    2865.0
    0.00

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    541
    1.60
    8.0
    Spud Mud
    714
    1.14
    9.0
    KCl/Polymer/GEM
    840
    1.12
    17.0
    KCl/Polymer/GEM
    1533
    1.13
    24.0
    KCl/Polymer/Glycol
    1696
    1.12
    21.0
    KCl/Polymer/GEM
    1797
    1.15
    19.0
    Low Sulphate/KCl/Polymer/Glycol
    2106
    1.16
    26.0
    Low Sulphate/KCl/Polymer/Glycol
    2261
    1.16
    23.0
    Low Sulphate/KCl/Polymer/Glycol
    2865
    1.16
    21.0
    Low Sulphate/KCl/Polymer/Glycol