Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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22.11.2024 - 09:09
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16/9-1

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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.
    16/9-1
    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
    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.
    NORTH SEA
    Well name
    Official name of the parent well for the wellbore based on Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    16/9-1
    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.
    Esso Exploration and Production Norway 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.
    12-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.
    66
    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,
    08.05.1968
    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.
    12.07.1968
    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.
    12.07.1970
    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.
    24.09.2004
    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.
    9.0
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    89.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    3655.0
    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).
    3655.0
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    101
    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 PERMIAN
    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.
    ZECHSTEIN GP
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    58° 22' 41.48'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    2° 48' 16.99'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    6470980.80
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    488578.52
    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.
    151

  • Wellbore history
    General
    Well 16/9-1 is located in the Ling Depression between the Utsira High and the Danish Norwegian Basin. A relatively thick Jurassic/Triassic section was anticipated and was expected to contain porous sandstones. The main objectives were to test the oil and gas potential and investigate the lithology of the sedimentary section on an anticlinal structure between salt dome features.
    Operations and results
    Wildcat well 16/9-1 was spudded with the vessel Glomar Grand Isle on 8 May 1968 and drilled to TD at 3654 m in salt of the Permian Zechstein Group. Drilling operations were normal to 3654 m (TD), while drilling at this depth on 24 June 1968, a sudden storm struck the Glomar Grand Isle causing the drill pipe to part and drop in the hole. The top of the fish was at 859 m. A jet cutter was run, the drill pipe was cut at 3321 m and recovered on 28 June. Attempts to recover the remaining fish failed and on 7-8 July final logs were run to the top of the fish at 3321 feet. Following final logs, the well was prepared for abandonment. Initial drilling from the sea floor to 402 m was with seawater and gel. Returns were to the sea floor. Below 402 m to 3395 m, the mud system consisted of a sea water/Spersene/XP-20 Salinex mud with 5% to 8% diesel oil. From 3395 to TD a salt saturated mud system was used.
    The Danian and Cretaceous carbonates had no shows. The remaining sections penetrated by the well were predominantly clays, shales or evaporites. The well penetrated a 169 m Jurassic section and a 735 m thick Triassic sequence before entering the Late Permian Zechstein Group at 3199 m. Some porous sandstones were present in the Jurassic and Triassic on structure but these had no hydrocarbon shows and were indicated to be water bearing on the electric logs. Two conventional cores were cut, one from 1227 m to 1245 m in the Tertiary Hordaland Group and one from 2396 m to 2404.5 m in the Middle Jurassic Vestland Group. No fluid samples were taken in the well. The well was permanently abandoned on 12 July 1968 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]
    1320.00
    11985.00

  • 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
    1226.8
    1245.1
    [m ]
    2
    2396.0
    2404.6
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    26.8
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    NO

  • 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
    127.0
    36
    131.0
    0.00
    LOT
    INTERM.
    20
    336.0
    26
    358.0
    0.00
    LOT
    INTERM.
    13 3/8
    1405.0
    17 1/2
    1418.0
    0.00
    LOT
    OPEN HOLE
    3655.0
    12 1/4
    3655.0
    0.00
    LOT

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    FDC
    1407
    3314
    GR BHC SONIC
    335
    3319
    HDT HR
    1407
    3304
    IES
    335
    1416
    IES
    1407
    2868
    LL
    2834
    3352
    MLL ML
    335
    3321

  • Lithostratigraphy

  • Composite logs
    Composite logs
    Document name
    Document format
    Document size [MB]
    pdf
    0.55

  • 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
    4.19

  • Documents – Norwegian Offshore Directorate papers
    Documents – Norwegian Offshore Directorate papers
    Document name
    Document format
    Document size [MB]
    pdf
    11.21
    pdf
    62.64

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    442
    1.05
    36.0
    seawater
    1280
    1.17
    37.0
    seawater
    1547
    1.25
    48.0
    seawater
    1897
    1.19
    41.0
    seawater
    2050
    1.22
    53.0
    seawater
    2858
    1.31
    43.0
    seawater
    3307
    1.28
    85.0
    seawater
    3459
    1.34
    43.0
    seawater

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    1.0
    [ft]
    DC
    2760.0
    [ft]
    DC
    2910.0
    [ft]
    DC
    2970.0
    [ft]
    DC
    3000.0
    [ft]
    DC
    3090.0
    [ft]
    DC
    3120.0
    [ft]
    DC
    3180.0
    [ft]
    DC
    3210.0
    [ft]
    DC
    3240.0
    [ft]
    DC
    3270.0
    [ft]
    DC
    3300.0
    [ft]
    DC
    3360.0
    [ft]
    DC
    3390.0
    [ft]
    DC
    3450.0
    [ft]
    DC
    3480.0
    [ft]
    DC
    3540.0
    [ft]
    DC
    3630.0
    [ft]
    DC
    3660.0
    [ft]
    DC
    3690.0
    [ft]
    DC
    3720.0
    [ft]
    DC
    3750.0
    [ft]
    DC
    3780.0
    [ft]
    DC
    3810.0
    [ft]
    DC
    3840.0
    [ft]
    DC
    3870.0
    [ft]
    DC
    3900.0
    [ft]
    DC
    3930.0
    [ft]
    DC
    3960.0
    [ft]
    DC
    3990.0
    [ft]
    DC
    4020.0
    [ft]
    DC
    4025.0
    [ft]
    DC
    4025.0
    [ft]
    DC
    4035.0
    [ft]
    DC
    4039.0
    [ft]
    DC
    4039.0
    [ft]
    C
    4080.0
    [ft]
    DC
    4084.0
    [ft]
    DC
    4110.0
    [ft]
    DC
    4170.0
    [ft]
    DC
    4200.0
    [ft]
    DC
    4230.0
    [ft]
    DC
    4230.0
    [ft]
    DC
    4290.0
    [ft]
    DC
    4320.0
    [ft]
    DC
    4350.0
    [ft]
    DC
    4378.5
    [ft]
    SWC
    4380.0
    [ft]
    DC
    4410.0
    [ft]
    DC
    4440.0
    [ft]
    DC
    4470.0
    [ft]
    DC
    4500.0
    [ft]
    DC
    4589.0
    [ft]
    SWC
    4600.0
    [ft]
    DC
    4600.0
    [ft]
    DC
    4610.0
    [ft]
    DC
    4640.0
    [ft]
    DC
    4650.0
    [ft]
    DC
    4680.0
    [ft]
    DC
    4700.0
    [ft]
    DC
    4700.0
    [ft]
    DC
    4740.0
    [ft]
    DC
    4780.0
    [ft]
    DC
    4800.0
    [ft]
    DC
    4860.0
    [ft]
    DC
    4900.0
    [ft]
    DC
    4900.0
    [ft]
    DC
    4980.0
    [ft]
    DC
    5000.0
    [ft]
    DC
    5100.0
    [ft]
    DC
    5110.0
    [ft]
    DC
    5200.0
    [ft]
    DC
    5230.0
    [ft]
    DC
    5300.0
    [ft]
    DC
    5320.0
    [ft]
    DC
    5400.0
    [ft]
    DC
    5500.0
    [ft]
    DC
    5600.0
    [ft]
    DC
    5700.0
    [ft]
    DC
    5800.0
    [ft]
    DC
    5900.0
    [ft]
    DC
    6000.0
    [ft]
    DC
    6026.0
    [ft]
    SWC
    6050.0
    [ft]
    DC
    6060.0
    [ft]
    DC
    6100.0
    [ft]
    DC
    6100.0
    [ft]
    DC
    6118.0
    [ft]
    SWC
    6120.0
    [ft]
    DC
    6160.0
    [ft]
    DC
    6200.0
    [ft]
    DC
    6220.0
    [ft]
    DC
    6260.0
    [ft]
    DC
    6300.0
    [ft]
    DC
    6320.0
    [ft]
    DC
    6360.0
    [ft]
    DC
    6370.0
    [ft]
    SWC
    6400.0
    [ft]
    DC
    6410.0
    [ft]
    SWC
    6420.0
    [ft]
    DC
    6450.0
    [ft]
    SWC
    6460.0
    [ft]
    DC
    6500.0
    [ft]
    DC
    6520.0
    [ft]
    DC
    6560.0
    [ft]
    DC
    6593.0
    [ft]
    SWC
    6600.0
    [ft]
    DC
    6620.0
    [ft]
    DC
    6635.0
    [ft]
    SWC
    6660.0
    [ft]
    DC
    6690.0
    [ft]
    SWC
    6700.0
    [ft]
    DC
    6720.0
    [ft]
    DC
    6765.0
    [ft]
    SWC
    6800.0
    [ft]
    DC
    6863.0
    [ft]
    SWC
    6900.0
    [ft]
    DC
    6988.0
    [ft]
    SWC
    7000.0
    [ft]
    DC
    7100.0
    [ft]
    DC
    7167.0
    [ft]
    SWC
    7200.0
    [ft]
    DC
    7220.0
    [ft]
    DC
    7260.0
    [ft]
    DC
    7300.0
    [ft]
    DC
    7320.0
    [ft]
    DC
    7334.0
    [ft]
    SWC
    7360.0
    [ft]
    DC
    7400.0
    [ft]
    DC
    7420.0
    [ft]
    DC
    7450.0
    [ft]
    DC
    7460.0
    [ft]
    DC
    7500.0
    [ft]
    DC
    7519.0
    [ft]
    DC
    7520.0
    [ft]
    DC
    7520.0
    [ft]
    DC
    7540.0
    [ft]
    DC
    7580.0
    [ft]
    DC
    7585.0
    [ft]
    SWC
    7600.0
    [ft]
    DC
    7630.0
    [ft]
    DC
    7652.0
    [ft]
    SWC
    7660.0
    [ft]
    DC
    7696.0
    [ft]
    SWC
    7720.0
    [ft]
    DC
    7749.0
    [ft]
    SWC
    7760.0
    [ft]
    DC
    7762.0
    [ft]
    SWC
    7772.0
    [ft]
    SWC
    7780.0
    [ft]
    SWC
    7800.0
    [ft]
    DC
    7820.0
    [ft]
    DC
    7820.0
    [ft]
    DC
    7840.0
    [ft]
    DC
    7843.0
    [ft]
    SWC
    7861.0
    [ft]
    C
    7865.0
    [ft]
    C
    7867.0
    [ft]
    C
    7900.0
    [ft]
    DC
    7920.0
    [ft]
    DC
    7954.0
    [ft]
    SWC
    8000.0
    [ft]
    DC
    8020.0
    [ft]
    DC