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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6505/10-1

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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.
    6505/10-1
    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
    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.
    6505/10-1
    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.
    A/S Norske Shell
    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.
    917-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.
    99
    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,
    28.03.1998
    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.
    04.07.1998
    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.
    04.07.2000
    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.
    26.0
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    684.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    5028.0
    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).
    5026.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    3.24
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    151
    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.
    LANGE FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    65° 7' 59.69'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    5° 10' 29.39'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    7225243.08
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    602035.97
    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.
    3259

  • Wellbore history
    General
    The objectives of the Helland-Hansen prospect exploration well 6505/10-1 were to obtain geological data and information down to 5000 m or Lower Cretaceous, to evaluate the HC potential of the Upper Cenomanian to Upper Coniacian interval of Helland-Hansen prospect in terms of reservoir and hydrocarbon phase, and to take appropriate samples in terms of reservoir, pressures and fluids.
    Operations and results
    Exploration well 6505/10-1 is located in the southern part of the Vøring Basin, m PL210, some 70 km West of the Smørbukk field and 250 km from the Norwegian mainland. After cementing the 20" casing string, it was decided to re-spud the well due to shallow water flow. The initial well was temporarily abandoned and re-numbered 6505/10-1X. The final well, numbered as 6505/10-1, was drilled to target depth of 5026 m TVD. The main objectives of the well were fulfilled. However, the reservoir quality of the target sequence was very poor, affecting sampling of pressures and formation fluids Based on the poor reservoir quality, no well testing was carried out. Two cores were cut in the Lysing Formation in the intervals 3485 to 3493 m and 3693 to 3720 m RKB, and one core was cut in the Lange Formation from 3857 to 3884 m. Two MDT samples were collected at 3718.6 m RKB but well site analyses established them to contain mainly filtrate and water and no moveable hydrocarbons. The well was permanently plugged and abandoned as a dry hole on 4th of july 1998.
    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]
    1310.00
    5026.00

  • 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
    3485.0
    3493.9
    [m ]
    2
    3693.0
    3720.8
    [m ]
    3
    3857.0
    3883.7
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    63.4
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    YES

  • Core photos
    Core photos
    Core photo at depth: 3485-3490m
    Core photo at depth: 3490-3493m
    Core photo at depth: 3693-3698m
    Core photo at depth: 3698-3703m
    Core photo at depth: 3703-3708m
    3485-3490m
    3490-3493m
    3693-3698m
    3698-3703m
    3703-3708m
    Core photo at depth: 3708-3713m
    Core photo at depth: 3713-3718m
    Core photo at depth: 3718-3720m
    Core photo at depth: 3857-3862m
    Core photo at depth: 3862-3867m
    3708-3713m
    3713-3718m
    3718-3720m
    3857-3862m
    3862-3867m
    Core photo at depth: 3867-3872m
    Core photo at depth: 3872-3877m
    Core photo at depth: 3877-3882m
    Core photo at depth: 3882-3884m
    Core photo at depth:  
    3867-3872m
    3872-3877m
    3877-3882m
    3882-3884m

  • 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
    782.0
    36
    788.0
    0.00
    LOT
    SURF.COND.
    20
    1296.0
    26
    1301.0
    1.37
    LOT
    INTERM.
    13 3/8
    2518.0
    16
    2526.0
    1.59
    LOT
    OPEN HOLE
    5028.0
    12 1/4
    5028.0
    0.00
    LOT

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    CDR
    761
    1273
    CDR
    3494
    4515
    CDR CDN ISON
    1300
    3469
    CST GR
    1307
    2462
    CST GR
    2528
    3676
    CST GR
    2552
    4997
    DLL MSFL CNL SP AS
    4145
    5031
    DLL MSFL CNL SP ASGR
    1296
    2486
    DLL MSFL SP LDL CNL
    3300
    4186
    DSI NGT ACTS
    1296
    2475
    DSI NGT FMI GR
    3300
    4186
    LDS APS HNGS
    3350
    3530
    LDS APS HNGS
    3675
    3930
    LDS APS HNGS
    4145
    5031
    MDT GR
    3364
    4965
    MDT GR
    3366
    3857
    VSP GR
    710
    2475
    VSP GR
    785
    5032

  • Lithostratigraphy
    Lithostratigraphy
    Top depth [mMD RKB]
    Lithostrat. unit
    710
    710
    1354
    1354
    1379
    1379
    1504
    1642
    1642
    2154
    2525
    3688
    3688
    3746

  • Composite logs
    Composite logs
    Document name
    Document format
    Document size [MB]
    pdf
    0.85

  • Geochemical information
    Geochemical information
    Document name
    Document format
    Document size [MB]
    pdf
    1.14

  • 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
    19.96
    .PDF
    82.50

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    709
    1.20
    1.0
    SPUD MUD
    1301
    1.22
    15.0
    1.0
    BARASILC
    4535
    1.42
    36.0
    13.4
    BARASILC
    4571
    1.42
    37.0
    11.0
    NACL/KCL/GE
    5028
    1.42
    37.0
    9.6
    NACL/POLYME

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    1310.0
    [m]
    SWC
    RRI
    1314.0
    [m]
    SWC
    RRI
    1319.0
    [m]
    SWC
    RRI
    1324.0
    [m]
    SWC
    RRI
    1333.0
    [m]
    SWC
    RRI
    1387.0
    [m]
    SWC
    RRI
    1395.0
    [m]
    SWC
    RRI
    3000.0
    [m]
    DC
    RRI
    3025.0
    [m]
    DC
    RRI
    3105.0
    [m]
    DC
    RRI
    3165.0
    [m]
    DC
    RRI
    3200.0
    [m]
    DC
    RRI
    3250.0
    [m]
    DC
    RRI
    3270.0
    [m]
    DC
    RRI
    3285.0
    [m]
    DC
    RRI
    3305.0
    [m]
    DC
    RRI
    3485.2
    [m]
    C
    OD
    3485.7
    [m]
    C
    RRI
    3487.5
    [m]
    C
    OD
    3488.8
    [m]
    C
    RRI
    3489.5
    [m]
    C
    OD
    3490.7
    [m]
    C
    RRI
    3491.5
    [m]
    C
    OD
    3493.4
    [m]
    C
    RRI
    3493.5
    [m]
    C
    OD
    3593.3
    [m]
    C
    OD
    3601.0
    [m]
    DC
    RRI
    3640.0
    [m]
    DC
    RRI
    3693.2
    [m]
    C
    RRI
    3694.9
    [m]
    C
    OD
    3695.2
    [m]
    C
    OD
    3695.6
    [m]
    C
    OD
    3697.3
    [m]
    C
    OD
    3697.8
    [m]
    C
    RRI
    3699.5
    [m]
    C
    OD
    3700.5
    [m]
    C
    RRI
    3701.2
    [m]
    C
    OD
    3702.0
    [m]
    C
    RRI
    3703.2
    [m]
    C
    OD
    3705.3
    [m]
    C
    OD
    3705.6
    [m]
    C
    RRI
    3707.5
    [m]
    C
    OD
    3707.5
    [m]
    C
    RRI
    3709.5
    [m]
    C
    OD
    3710.6
    [m]
    C
    RRI
    3711.2
    [m]
    C
    OD
    3713.7
    [m]
    C
    OD
    3713.7
    [m]
    C
    RRI
    3715.4
    [m]
    C
    OD
    3716.8
    [m]
    C
    RRI
    3717.5
    [m]
    C
    OD
    3719.4
    [m]
    C
    OD
    3720.0
    [m]
    C
    RRI
    3720.7
    [m]
    C
    OD
    3739.0
    [m]
    DC
    RRI
    3838.0
    [m]
    DC
    RRI
    3857.2
    [m]
    C
    OD
    3857.4
    [m]
    C
    RRI
    3859.4
    [m]
    C
    OD
    3861.6
    [m]
    C
    OD
    3861.9
    [m]
    C
    RRI
    3863.6
    [m]
    C
    OD
    3865.5
    [m]
    C
    OD
    3865.7
    [m]
    C
    RRI
    3867.2
    [m]
    C
    OD
    3868.9
    [m]
    C
    RRI
    3869.5
    [m]
    C
    OD
    3871.5
    [m]
    C
    OD
    3871.8
    [m]
    C
    RRI
    3873.5
    [m]
    C
    OD
    3874.7
    [m]
    C
    RRI
    3875.5
    [m]
    C
    OD
    3877.0
    [m]
    C
    RRI
    3877.3
    [m]
    C
    OD
    3879.5
    [m]
    C
    OD
    3880.8
    [m]
    C
    RRI
    3881.3
    [m]
    C
    OD
    3882.4
    [m]
    C
    RRI
    3883.1
    [m]
    C
    OD