Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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01.11.2024 - 01:26
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6404/11-1

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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.
    6404/11-1
    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
    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
    Well name
    Official name of the parent well for the wellbore based on Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    6404/11-1
    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.
    BP Amoco Norge 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.
    1019-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.
    96
    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,
    01.12.2001
    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.
    10.03.2002
    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.
    10.03.2004
    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.
    10.03.2004
    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.
    1495.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    3650.0
    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).
    3649.7
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    2
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    93
    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.
    64° 10' 11.91'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    4° 21' 36.65'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    7116837.72
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    566124.46
    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.
    4465

  • Wellbore history
    General
    The pre-drill objective of the PL254 well 6404/11-1 was to test the Havsule Prospect. The prospect is a seismically defined north - south trending structural dome located in the north of the Møre Basin in the Norwegian Sea, thought to have developed during the Tertiary Period in response to compression during opening of the North Atlantic Ocean. Three primary reservoir targets were identified: T50, an Early Eocene Turbidite sandstone with 4-way dip closure; K90, a Maastrichtian turbidite sandstone with 4-way dip closure; and K80, a Nise sandstone. An optional secondary target was K72, a 4-way dip closure Coniacian Lysing turbidite.
    Operations and results
    Wildcat well 6404/11-1 well was spudded with the dynamically positioned semi-submersible installation Scarabeo 5 on 1 December 2001. A 12 1/4" pilot hole was drilled from seabed to 2195 m in one bit run. No indications of shallow gas or abnormal pore pressures were observed from drilling data or on LWD. After drilling to section TD the bit was
    pulled and the hole opened from 362 m to 1629 m. While repositioning one of the subsea marker buoys it was inadvertently dropped into the hole necessitating a re-spud of the well 28.6m to the north-northwest of the original hole location.
    The well was re-spudded on 6 December 2001 using a 42" x 36" hole opener assembly. The 26" hole was drilled to 2175 m with seawater and hi-vis sweeps. After displacing to seawater, circulating the hole clean and pulling to 1870 m bubbles were seen flowing from the wellhead. Drillpipe was run to bottom and the hole was made static with 1.20 sg mud. Casing was run and cemented without problem, however weather delayed running the BOP?s and riser. The 17" hole section was drilled with KCl/Polymer mud. It was TD?d 15 m shallow to prognosis due to concerns over increasing pore pressure. After running and cementing the 13 3/8" casing it was necessary to run a piggy-back casing hanger to allow the seal assembly to seat in the correct position. A value of 1.38 sg was obtained for the leak-off after drilling out the 13 3/8" casing and drilling 12 1/4" hole commenced. From here to TD the well was drilled with Aquadrill Deepwater mud with a 13 ? 15 % glycol content. Drilling was halted at 2730 m when pore pressure was seen to have reached 1.25 sg and the bit was pulled into the casing shoe. In an attempt to carry on drilling an open-hole leak-off was performed that confirmed the 1.38 sg value obtained earlier. Having insufficient kick tolerance to drill ahead, the decision was made to run a 9 5/8" liner. A triple-combo wire line log was run to acquire data over the drilled section. Liner was set and a 1.47 sg leak-off was obtained. Drilling commenced in 8 1/2" hole. No reservoir horizons were identified and the well was TD?d at a depth of 3650 m.
    The shallowest primary target (Early Eocene T50 sandstones) was absent at the well location. Late Cretaceous (K90 sandstones) was absent and K80 (Nise Formation) sandstones were poorly developed. The well was not extended to penetrate the deeper, K72 (Lysing Formation) secondary target. Three wire line logging runs were performed. Conventional cores were not cut. No fluid samples were taken
    The 6404/11-1 well was plugged and abandoned as a dry hole on 10 March 2002.
    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]
    2180.00
    3651.00

  • 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
    1622.0
    36
    1628.0
    0.00
    LOT
    INTERM.
    20
    2170.0
    26
    2175.0
    0.00
    LOT
    INTERM.
    13 3/8
    2443.0
    17
    2449.0
    1.37
    LOT
    INTERM.
    9 5/8
    2728.0
    12 1/4
    2730.0
    0.00
    LOT
    OPEN HOLE
    3650.0
    8 1/2
    3650.0
    0.00
    LOT

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    LWD - ARC-5 GR
    2730
    3650
    LWD - GR CDR
    1495
    2195
    LWD - GR CDR
    2171
    2449
    LWD - GVR8 GR CDR
    2449
    2730
    MSCT GR
    2739
    3593
    MWD
    1628
    2175
    PEX HRLA EMS DSI SP
    2440
    2718
    PEX NGS HRLA DSI SP EMS
    2649
    3640
    VSP GR
    1700
    3645

  • Lithostratigraphy
    Lithostratigraphy
    Top depth [mMD RKB]
    Lithostrat. unit
    1520
    1520
    2223
    2223
    2526
    2526
    2605
    2748
    2748
    3206

  • Composite logs
    Composite logs
    Document name
    Document format
    Document size [MB]
    pdf
    0.24

  • Geochemical information
    Geochemical information
    Document name
    Document format
    Document size [MB]
    pdf
    13.76

  • 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
    10.09
    .PDF
    2.66
    .PDF
    0.32

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    2175
    0.00
    SPUD MUD
    2258
    1.17
    17.0
    KCL
    2449
    1.29
    20.0
    KCL
    2480
    1.30
    18.0
    SALT MUD
    2551
    1.31
    19.0
    SALT MUD
    2730
    1.35
    19.0
    SALT MUD
    3351
    1.37
    25.0
    SALT MUD
    3650
    1.40
    26.0
    SALT MUD

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    2180.0
    [m]
    C
    OD
    2190.0
    [m]
    C
    OD
    2200.0
    [m]
    C
    OD
    2210.0
    [m]
    C
    OD
    2220.0
    [m]
    C
    OD
    2230.0
    [m]
    C
    OD
    2240.0
    [m]
    C
    OD
    2250.0
    [m]
    C
    OD
    2260.0
    [m]
    C
    OD
    2270.0
    [m]
    C
    OD
    2280.0
    [m]
    C
    OD
    2290.0
    [m]
    C
    OD
    2300.0
    [m]
    C
    OD
    2310.0
    [m]
    C
    OD
    2320.0
    [m]
    C
    OD
    2330.0
    [m]
    C
    OD
    2340.0
    [m]
    C
    OD
    2350.0
    [m]
    C
    OD
    2360.0
    [m]
    C
    OD
    2370.0
    [m]
    C
    OD
    2380.0
    [m]
    C
    OD
    2390.0
    [m]
    C
    OD
    2400.0
    [m]
    C
    OD
    2410.0
    [m]
    C
    OD
    2420.0
    [m]
    C
    OD
    2430.0
    [m]
    C
    OD
    2440.0
    [m]
    C
    OD
    2445.0
    [m]
    C
    OD
    2454.0
    [m]
    C
    OD
    2457.0
    [m]
    C
    OD
    2460.0
    [m]
    C
    OD
    2463.0
    [m]
    C
    OD
    2466.0
    [m]
    C
    OD
    2469.0
    [m]
    C
    OD
    2472.0
    [m]
    C
    OD
    2475.0
    [m]
    C
    OD
    2478.0
    [m]
    C
    OD
    2481.0
    [m]
    C
    OD
    2484.0
    [m]
    C
    OD
    2487.0
    [m]
    C
    OD
    2490.0
    [m]
    C
    OD
    2493.0
    [m]
    C
    OD
    2496.0
    [m]
    C
    OD
    2499.0
    [m]
    C
    OD
    2502.0
    [m]
    C
    OD
    2505.0
    [m]
    C
    OD
    2508.0
    [m]
    C
    OD
    2511.0
    [m]
    C
    OD
    2514.0
    [m]
    C
    OD
    2517.0
    [m]
    C
    OD
    2520.0
    [m]
    C
    OD
    2523.0
    [m]
    C
    OD
    2526.0
    [m]
    C
    OD
    2529.0
    [m]
    C
    OD
    2532.0
    [m]
    C
    OD
    2535.0
    [m]
    C
    OD
    2538.0
    [m]
    C
    OD
    2541.0
    [m]
    C
    OD
    2544.0
    [m]
    C
    OD
    2547.0
    [m]
    C
    OD
    2550.0
    [m]
    C
    OD
    2553.0
    [m]
    C
    OD
    2556.0
    [m]
    C
    OD
    2559.0
    [m]
    C
    OD
    2568.0
    [m]
    C
    OD
    2571.0
    [m]
    C
    OD
    2574.0
    [m]
    C
    OD
    2577.0
    [m]
    C
    OD
    2580.0
    [m]
    C
    OD