Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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31.12.2024 - 01:26
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6608/10-1

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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.
    6608/10-1
    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
    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.
    6608/10-1
    Seismic location
    Position of spud location on seismic survey lines. SP: shotpoint.
    NRGS 84 - 457 SP 1203
    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.
    Den norske stats oljeselskap a.s
    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.
    605-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.
    45
    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,
    15.04.1989
    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.
    29.05.1989
    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.
    29.05.1991
    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.
    09.03.2004
    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
    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.
    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.
    24.0
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    375.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    3437.0
    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).
    3436.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    5
    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 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.
    66° 6' 56.92'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    8° 10' 0.72'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    7333255.04
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    462357.45
    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.
    1391

  • Wellbore history
    General
    Well 6608/10-1 is located on the Nordland Ridge nearby the Revfallet Fault Complex. The primary objective of the well was to test a Turonian/Coniacian prospect in a position where Lysing sandstone was within defined closure. The well should also test the facies development of the Early Cretaceous Fan, reservoir properties and formation pressure in the Middle Jurassic, and the source rock potential of the Late Jurassic Spekk Formation and the Early Jurassic/Late Triassic Åre Formation. Planned TD was 3373 m, in the coal bearing Åre Formation. Prognosed sand layers in the interval 661 - 685 m could be gas charged.
    Operations and results
    Wildcat well 6608/10-1 was spudded with the semi-submersible installation Ross Rig on 15 April 1989 and drilled to TD at 3437 m in the Early Jurassic Åre Formation. No shallow gas was encountered while drilling and the well was drilled to TD without significant drilling problems. The well was drilled with seawater and hi-vis pills down to 820 m, with gyp/polymer mud from 820 m to 2508 m, and with gel/lingo mud from 2508 m to TD.
    The main target was penetrated at 2661 m, but proved to be only 1.5 m thick in the well position. There was no indication of hydrocarbons in the reservoir. The Lower Cretaceous Fan was penetrated in a very distal position, and consisted of mudstone with thin sandstone stringers. The Fangst group (Garn, Not and Ile Formations) was penetrated approximately 100 m deeper than prognosed. All reservoirs were water bearing, but shows were recorded in the Garn and Åre Formations. Post-well organic geochemical analyses showed poor potential in the Cretaceous and Tertiary sections except for an interval around 1580 m to 1670 m in Oligocene / Brygge Formation, where TOC in the range 2-3 % and Hydrogen Indexes around 110 mg/g were measured. Good source potentials were proven in the Spekk and Åre Formations. A total of three cores were cut in the well with 100 % recovery. The first core was cut in a Barremian black mudstone of the Lange Formation (2885 m to 2897 m), the second in sandstones of the Garn Formation (3063 m to 3090.15 m) and the third from the Ile/Ror/Tofte formations (3157 m to 3184.9 m). Out of 180 sidewall cores attempted 152 were recovered. Two segregated RFT samples were recovered from 2931 m and 3185 m. Both indicated a low-salinity formation water (fresh water). No hydrocarbons were reported in the samples. Well 6608/10-1 was permanently abandoned on 29 May 1989 as a dry well.
    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]
    820.00
    3435.00

  • 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
    2885.0
    2897.3
    [m ]
    2
    3063.0
    3090.2
    [m ]
    3
    3163.0
    3184.8
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    61.2
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    YES

  • Core photos
    Core photos
    Core photo at depth: 2885-2889m
    Core photo at depth: 2890-2894m
    Core photo at depth: 2895-2897m
    Core photo at depth: 3063-3067m
    Core photo at depth: 3068-3072m
    2885-2889m
    2890-2894m
    2895-2897m
    3063-3067m
    3068-3072m
    Core photo at depth: 3073-3077m
    Core photo at depth: 3078-3082m
    Core photo at depth: 3083-3087m
    Core photo at depth: 3088-3090m
    Core photo at depth: 3157-3161m
    3073-3077m
    3078-3082m
    3083-3087m
    3088-3090m
    3157-3161m
    Core photo at depth: 3162-3166m
    Core photo at depth: 3167-3171m
    Core photo at depth: 3172-3176m
    Core photo at depth: 3177-3182m
    Core photo at depth: 3182-3184m
    3162-3166m
    3167-3171m
    3172-3176m
    3177-3182m
    3182-3184m

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    1418.0
    [m]
    SWC
    STAT
    1473.0
    [m]
    SWC
    STAT
    1535.0
    [m]
    SWC
    STAT
    1583.0
    [m]
    SWC
    STAT
    1623.0
    [m]
    SWC
    STAT
    1658.0
    [m]
    SWC
    STAT
    1683.0
    [m]
    SWC
    STAT
    1691.0
    [m]
    SWC
    STAT
    1697.0
    [m]
    SWC
    STAT
    1709.0
    [m]
    SWC
    STAT
    1725.0
    [m]
    SWC
    STAT
    1746.0
    [m]
    SWC
    STAT
    1755.0
    [m]
    SWC
    STAT
    1772.0
    [m]
    SWC
    STAT
    1796.0
    [m]
    SWC
    STAT
    1816.0
    [m]
    SWC
    STAT
    1839.0
    [m]
    SWC
    STAT
    1866.0
    [m]
    SWC
    STAT
    1892.0
    [m]
    SWC
    STAT
    1922.0
    [m]
    SWC
    STAT
    1937.0
    [m]
    SWC
    STAT
    1962.0
    [m]
    SWC
    STAT
    1980.0
    [m]
    SWC
    STAT
    2010.0
    [m]
    SWC
    STAT
    2030.0
    [m]
    SWC
    STAT
    2060.0
    [m]
    SWC
    STAT
    2090.0
    [m]
    SWC
    STAT
    2160.0
    [m]
    SWC
    STAT
    2202.0
    [m]
    SWC
    STAT
    2250.0
    [m]
    SWC
    STAT
    2290.0
    [m]
    SWC
    STAT
    2338.0
    [m]
    SWC
    STAT
    2375.0
    [m]
    SWC
    STAT
    2390.0
    [m]
    SWC
    STAT
    2430.0
    [m]
    SWC
    STAT
    2490.0
    [m]
    SWC
    STAT
    2510.0
    [m]
    SWC
    STAT
    2530.0
    [m]
    SWC
    STAT
    2560.0
    [m]
    SWC
    STAT
    2590.0
    [m]
    SWC
    STAT
    2630.0
    [m]
    SWC
    STAT
    2658.0
    [m]
    SWC
    STAT
    2664.0
    [m]
    SWC
    STAT
    2684.0
    [m]
    SWC
    STAT
    2691.0
    [m]
    SWC
    STAT
    2708.0
    [m]
    SWC
    STAT
    2724.0
    [m]
    SWC
    STAT
    2758.0
    [m]
    SWC
    STAT
    2785.0
    [m]
    SWC
    STAT
    2819.0
    [m]
    SWC
    STAT
    2836.0
    [m]
    SWC
    STAT
    2840.0
    [m]
    SWC
    STAT
    2860.0
    [m]
    SWC
    STAT
    2906.0
    [m]
    SWC
    STAT
    2917.0
    [m]
    SWC
    STAT
    2924.0
    [m]
    SWC
    STAT
    2926.0
    [m]
    SWC
    STAT
    2931.0
    [m]
    SWC
    STAT
    2946.0
    [m]
    SWC
    STAT
    2957.0
    [m]
    SWC
    STAT
    2971.0
    [m]
    SWC
    STAT
    2979.0
    [m]
    SWC
    STAT
    2995.0
    [m]
    SWC
    STAT
    3005.0
    [m]
    SWC
    STAT
    3025.0
    [m]
    SWC
    STAT
    3035.0
    [m]
    SWC
    STAT
    3047.0
    [m]
    SWC
    STAT
    3055.0
    [m]
    SWC
    STAT
    3063.3
    [m]
    C
    STAT
    3069.6
    [m]
    C
    STAT
    3076.0
    [m]
    C
    STAT
    3079.7
    [m]
    C
    STAT
    3085.0
    [m]
    C
    STAT
    3087.7
    [m]
    C
    STAT
    3095.0
    [m]
    SWC
    STAT
    3112.0
    [m]
    SWC
    STAT
    3125.0
    [m]
    SWC
    STAT
    3140.0
    [m]
    SWC
    STAT
    3157.0
    [m]
    SWC
    STAT
    3164.0
    [m]
    C
    STAT
    3168.7
    [m]
    C
    STAT
    3171.2
    [m]
    C
    STAT
    3171.9
    [m]
    C
    STAT
    3173.9
    [m]
    C
    STAT
    3176.9
    [m]
    C
    STAT
    3179.6
    [m]
    C
    STAT
    3183.8
    [m]
    C
    STAT
    3204.0
    [m]
    SWC
    STAT
    3213.0
    [m]
    SWC
    STAT
    3228.0
    [m]
    SWC
    STAT
    3245.0
    [m]
    SWC
    STAT
    3267.0
    [m]
    SWC
    STAT
    3315.0
    [m]
    SWC
    STAT
    3375.0
    [m]
    SWC
    STAT
    3394.0
    [m]
    SWC
    STAT
    3403.0
    [m]
    SWC
    STAT
    3413.0
    [m]
    SWC
    STAT
    3428.0
    [m]
    SWC
    STAT
    3438.0
    [m]
    SWC
    STAT

  • Lithostratigraphy

  • Composite logs
    Composite logs
    Document name
    Document format
    Document size [MB]
    pdf
    0.48

  • Geochemical information
    Geochemical information
    Document name
    Document format
    Document size [MB]
    pdf
    2.41

  • 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
    48.66

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    CBL VDL
    433
    1527
    CBL VDL
    1273
    2451
    CST
    898
    1535
    CST
    1559
    2490
    CST
    2510
    3438
    CST
    2510
    3438
    DIT LSS CAL GR SP
    2480
    3440
    DIT LSS GR SP
    808
    1541
    DIT LSS GR SP
    1537
    2503
    LDT CAL GR
    808
    1522
    LDT CAL GR
    1537
    2485
    LDT CNT NGT
    2480
    3440
    MWD - GR RES DIR
    404
    3440
    NGT
    2480
    3432
    RFT
    2662
    3156
    RFT
    2931
    3185
    RFT
    3181
    3211
    SHDT
    1537
    2505
    SHDT
    2480
    3440
    VSP
    399
    1630
    VSP
    1570
    3150
    VSP
    3110
    3430

  • 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
    463.0
    36
    463.0
    0.00
    LOT
    INTERM.
    20
    808.0
    26
    820.0
    1.35
    LOT
    INTERM.
    13 3/8
    1538.0
    17 1/2
    1549.0
    1.87
    LOT
    INTERM.
    9 5/8
    2480.0
    12 1/4
    2502.0
    1.86
    LOT
    OPEN HOLE
    3437.0
    8 1/2
    3437.0
    0.00
    LOT

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    820
    1.20
    9999.0
    999.0
    WATER BASED
    26.04.1989
    943
    1.11
    1400.0
    2.1
    WATER BASED
    26.04.1989
    1303
    1.67
    2200.0
    4.5
    WATER BASED
    29.05.1989
    1349
    1.11
    1200.0
    1.5
    WATER BASED
    26.04.1989
    1487
    1.20
    1200.0
    1.5
    WATER BASED
    26.04.1989
    1549
    1.32
    1500.0
    3.5
    WATER BASED
    27.04.1989
    1549
    1.32
    1200.0
    3.0
    WATER BASED
    27.04.1989
    1549
    1.44
    1300.0
    6.0
    WATER BASED
    28.04.1989
    1754
    1.60
    700.0
    5.3
    WATER BASED
    02.05.1989
    2033
    1.67
    1000.0
    7.7
    WATER BASED
    02.05.1989
    2300
    1.67
    1200.0
    11.5
    WATER BASED
    02.05.1989
    2474
    1.67
    900.0
    7.6
    WATER BASED
    02.05.1989
    2502
    1.67
    500.0
    6.2
    WATER BASED
    05.05.1989
    2502
    1.67
    1900.0
    6.0
    WATER BASED
    05.05.1989
    2502
    1.67
    900.0
    9.6
    WATER BASED
    03.05.1989
    2540
    1.52
    1400.0
    5.0
    WATER BASED
    08.05.1989
    2584
    1.52
    1600.0
    5.0
    WATER BASED
    09.05.1989
    2664
    1.52
    60.0
    6.0
    WATER BASED
    10.05.1989
    2716
    1.52
    1700.0
    4.6
    WATER BASED
    10.05.1989
    2750
    1.52
    1700.0
    5.0
    WATER BASED
    11.05.1989
    2852
    1.52
    1900.0
    6.0
    WATER BASED
    12.05.1989
    2885
    1.52
    1700.0
    5.0
    WATER BASED
    16.05.1989
    2925
    1.52
    1600.0
    4.0
    WATER BASED
    16.05.1989
    3007
    1.52
    1800.0
    5.0
    WATER BASED
    16.05.1989
    3063
    1.52
    1900.0
    5.0
    WATER BASED
    16.05.1989
    3090
    1.52
    1800.0
    5.0
    WATER BASED
    19.05.1989
    3146
    1.52
    1800.0
    6.0
    WATER BASED
    19.05.1989
    3181
    1.52
    1500.0
    5.0
    WATER BASED
    19.05.1989
    3268
    1.52
    1700.0
    5.0
    WATER BASED
    22.05.1989
    3402
    1.52
    1900.0
    5.0
    WATER BASED
    22.05.1989
    3437
    1.52
    2000.0
    5.0
    WATER BASED
    22.05.1989

  • Pressure plots
    Pressure plots
    The pore pressure data is sourced from well logs if no other source is specified. In some wells where pore pressure logs do not exist, information from Drill stem tests and kicks have been used. The data has been reported to the NPD, and further processed and quality controlled by IHS Markit.
    Pressure plots
    Document name
    Document format
    Document size [MB]
    pdf
    0.27