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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6704/12-1

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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.
    6704/12-1
    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
    Well name
    Official name of the parent well for the wellbore based on Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    6704/12-1
    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.
    Saga Petroleum ASA
    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.
    956-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.
    51
    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,
    04.06.1999
    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.
    24.07.1999
    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.
    24.07.2001
    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.
    15.11.2001
    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.
    DRY
    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.
    1352.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    4103.0
    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).
    4094.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    11
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    142
    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.
    NISE FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    67° 7' 25'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    4° 42' 44.7'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    7446374.14
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    574282.36
    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.
    3759

  • Wellbore history
    General
    The well is located on the Gjallar Ridge, on a local horst within a major top Cretaceous four-way dip closure. The main purpose of well 6704/12-1 was to test the petroleum potential of the Upper Cretaceous section. In addition to the primary objective, the well was designed to test the petroleum potential of the possible sandy Eocene section above the main target
    Operations and results
    Wildcat well 6704/12-1 was spudded with the semi-submersible installation "Scarabeo 5" in 1352 m water depth on 4 June 1999 and drilled to TD at 4103 m in the late Cretaceous Nise Formation. Due to problems with the positioning system the well was spudded a little over 108 m to the Northeast off the planned spud point, and a correction run was necessary to correct the well path. The well was initially planned as a vertical well, but was consequently built to 11 deg. in top Cretaceous and dropped to 5 deg. towards TD. The well was drilled water based with seawater and bentonite down to 2167 m and AQUA-DRILL mud with Glycol additives (AQUA-COL) from 2167 m to TD. The 12 1/4 pilot hole from seabed to 2126 m was drilled with a full suite MWD plus sonic to detect water or gas flows, and give information on silicate ooze sediment formations and establish setting depth for the 20" casing. The much debated ooze section proved to be about 640 m thick and was drilled without problems. Only thin sand stringers were present in the top of the Eocene-50 section. The Early Tertiary section consists of siltstones and shaly-silty dirty sandstones. The reservoir quality of the Latest Campanian sandstones below the top Cretaceous unconformity was excellent. Two thin intrusions were present at approx. 3500 m RKB. One core was cut across the Tertiary-Cretaceous boundary from 2554 to 2575 m, a second from 2997 to 3006 m in the Springar Formation and a third from 4097 to 4103 (TD) in the Nise Formation. A number of MDT samples from 3842.6 were all highly contaminated with mud. The well was permanently plugged and abandoned as a dry hole on 24 July 1999.
    Testing
    No DST 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]
    2170.00
    4092.00

  • 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
    2554.0
    2574.7
    [m ]
    2
    2997.0
    3005.4
    [m ]
    3
    4097.0
    4103.0
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    35.1
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    NO

  • Core photos
    Core photos
    Core photo at depth: 2554-2559m
    Core photo at depth: 2559-2564m
    Core photo at depth: 2564-2569m
    Core photo at depth: 2569-2574m
    Core photo at depth: 2574-2575m
    2554-2559m
    2559-2564m
    2564-2569m
    2569-2574m
    2574-2575m
    Core photo at depth: 2997-3002m
    Core photo at depth: 3002-3005m
    Core photo at depth: 4097-4102m
    Core photo at depth: 4102-4103m
    Core photo at depth:  
    2997-3002m
    3002-3005m
    4097-4102m
    4102-4103m

  • 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
    1476.0
    36
    1476.0
    0.00
    LOT
    SURF.COND.
    20
    2162.0
    26
    2167.0
    1.17
    LOT
    INTERM.
    13 3/8
    2379.0
    17
    2384.0
    1.26
    LOT
    INTERM.
    9 5/8
    2854.0
    12 1/4
    2855.0
    1.40
    LOT
    OPEN HOLE
    4103.0
    8 1/2
    4103.0
    0.00
    LOT

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    CLSS
    1377
    4097
    CMR SP
    2853
    4096
    DCP
    1476
    2166
    DCP MPR
    2167
    2384
    DCP MPR
    2855
    4090
    DCP NAV
    2384
    2855
    DCP TC MPR
    1377
    2162
    FMI CMR
    2853
    4096
    HALS PEX DSI GPIT HN
    2125
    2851
    HALS PEX DSI HNGS GP
    2257
    4096
    MDT
    2878
    3843
    MDT GR
    2878
    3961
    MPR
    4090
    4097
    MSCT
    2410
    2798
    MSCT
    3311
    4087
    MSCT GR
    2937
    4057
    VSP
    1900
    3490
    VSP
    2970
    4040

  • Lithostratigraphy
    Lithostratigraphy
    Top depth [mMD RKB]
    Lithostrat. unit
    1377
    1377
    1459
    1920
    1920
    2548
    2548
    2558
    2558
    3244
    3644
    3910

  • Composite logs
    Composite logs
    Document name
    Document format
    Document size [MB]
    pdf
    0.52

  • Geochemical information
    Geochemical information
    Document name
    Document format
    Document size [MB]
    pdf
    1.93
    pdf
    1.88
    pdf
    1.91
    pdf
    0.85

  • Documents – reported by the production licence (period for duty of secrecy expired)
    Documents – reported by the production licence (period for duty of secrecy expired)
    Document name
    Document format
    Document size [MB]
    .pdf
    41.68

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    1705
    1.08
    spud mud
    2384
    1.11
    11.0
    kcl mud
    2392
    1.17
    16.0
    nacl
    4103
    1.23
    17.0
    nacl satura

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    2430.0
    [m]
    SWC
    RRI
    2455.0
    [m]
    SWC
    RRI
    2477.2
    [m]
    SWC
    RRI
    2537.0
    [m]
    SWC
    RRI
    2554.8
    [m]
    C
    RRI
    2556.2
    [m]
    C
    RRI
    2558.1
    [m]
    C
    RRI
    2573.7
    [m]
    C
    RRI
    2582.0
    [m]
    SWC
    RRI
    2611.0
    [m]
    SWC
    RRI
    2638.0
    [m]
    SWC
    RRI
    2685.3
    [m]
    SWC
    RRI
    2729.0
    [m]
    SWC
    RRI
    2798.0
    [m]
    SWC
    RRI
    3003.9
    [m]
    C
    RRI
    3106.5
    [m]
    SWC
    RRI
    3150.5
    [m]
    SWC
    RRI
    3310.5
    [m]
    SWC
    RRI
    3351.5
    [m]
    SWC
    RRI
    3445.5
    [m]
    SWC
    RRI
    3471.0
    [m]
    SWC
    RRI
    3512.5
    [m]
    SWC
    RRI
    3542.5
    [m]
    SWC
    RRI
    3598.6
    [m]
    SWC
    RRI
    3698.0
    [m]
    SWC
    RRI
    3740.0
    [m]
    SWC
    RRI
    3755.5
    [m]
    SWC
    RRI
    3852.5
    [m]
    SWC
    RRI
    3904.0
    [m]
    SWC
    RRI
    3991.5
    [m]
    SWC
    RRI
    4020.0
    [m]
    SWC
    RRI
    4097.3
    [m]
    C
    RRI
    4101.2
    [m]
    C
    RRI
    4102.7
    [m]
    C
    RRI