Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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21.11.2024 - 01:28
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15/6-2

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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.
    15/6-2
    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).
    APPRAISAL
    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.
    SUSPENDED
    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
    Field
    Name of the field the wellbore is related to.
    Discovery
    Name of the discovery the wellbore is related to.
    Well name
    Official name of the parent well for the wellbore based on Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    15/6-2
    Seismic location
    Position of spud location on seismic survey lines. SP: shotpoint.
    SC 23 SP.7490
    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.
    62-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.
    48
    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,
    09.09.1971
    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.
    26.10.1971
    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.
    26.10.1973
    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.
    24.09.2015
    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.
    SHOWS
    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.
    115.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    3131.0
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    100
    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.
    SHETLAND GP
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    58° 32' 47.58'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    1° 41' 54.09'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    6490444.74
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    424236.03
    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.
    317

  • Wellbore history
    General
    Well 15/6-2 was drilled in the Ve Sub-basin in the North Sea, ca 5 km north of the Sleipner Field. It is the replacement well for 15/6-1, which was junked for technical reasons. The objective was to evaluate a deep-seated structure in the Scottish-Norwegian Graben. The target was Eocene to Paleocene sandstones.
    Operations and results
    Wildcat well 15/6-2 was spudded with the drill vessel on 9 September 1971 and drilled to TD at 3131 m in the Shetland Group. No drilling problems were encountered, however, due to deviation problems around 1311 m a planned FIT was aborted, as the tool would not go beyond this depth. Initial drilling from the sea floor to 1330 m was with seawater and gel. Below 1330 m, a fresh water Spersene XP-20 mud system was used.
    The Paleocene section contained abundant potential sandstone reservoirs (Heimdal Formation) with thin beds of clay becoming marly below 2390. Significant shows were encountered in the interval 2223 to 2236 m in the upper Heimdal Formation. The cuttings, sidewall and conventional cores corroborated the shows. Weak shows were recorded also on numerous sidewall cores between 2303 and 2604 m. However, other evidence did not substantiate these shows and the reservoir was assumed water wet below 2236 m. The Danian (2676 to 2735 m, Våle Formation) consisted of a sequence of thinly interbedded sandstones, clays, shales and chalky limestones. No shows were reported in this section. The Late Cretaceous section, from 2735 m to 3106 m, was predominantly limestone with thin interbeds of shale. Thin interbeds of sandstone were also noted. There were no shows in the Late Cretaceous.
    Three cores were cut. Core 1 was cut from 2236 to 2242 m with 100% recovery, core 2 was cut from 2336.6 to 2343.9 m with 42% recovery, and core 3 was cut from 2695.3 to 2699.3 m with 46% recovery.  No fluid samples were taken.
    The well was suspended on 26 October 1971 as a well with shows.
    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]
    377.95
    4779.26

  • 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
    7336.0
    7356.0
    [ft ]
    2
    7666.0
    7670.0
    [ft ]
    3
    8843.0
    8849.0
    [ft ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    9.1
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    YES

  • 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
    2.0
    [ft]
    DC
    3.0
    [ft]
    DC
    4.0
    [ft]
    DC
    5.0
    [ft]
    DC
    6.0
    [ft]
    DC
    7.0
    [ft]
    DC
    4100.0
    [ft]
    DC
    4200.0
    [ft]
    DC
    4250.0
    [ft]
    DC
    4300.0
    [ft]
    DC
    4360.0
    [ft]
    DC
    4390.0
    [ft]
    DC
    4510.0
    [ft]
    DC
    4600.0
    [ft]
    DC
    4690.0
    [ft]
    DC
    4780.0
    [ft]
    DC
    4900.0
    [ft]
    DC
    4990.0
    [ft]
    DC
    5110.0
    [ft]
    DC
    5200.0
    [ft]
    DC
    5290.0
    [ft]
    DC
    5410.0
    [ft]
    DC
    5500.0
    [ft]
    DC
    5590.0
    [ft]
    DC
    5680.0
    [ft]
    DC
    5740.0
    [ft]
    SWC
    5785.0
    [ft]
    SWC
    5800.0
    [ft]
    DC
    5920.0
    [ft]
    DC
    6010.0
    [ft]
    DC
    6030.0
    [ft]
    SWC
    6100.0
    [ft]
    DC
    6155.0
    [ft]
    SWC
    6190.0
    [ft]
    DC
    6215.0
    [ft]
    SWC
    6280.0
    [ft]
    DC
    6400.0
    [ft]
    DC
    6490.0
    [ft]
    DC
    6500.0
    [ft]
    SWC
    6545.0
    [ft]
    SWC
    6610.0
    [ft]
    DC
    6625.0
    [ft]
    SWC
    6653.0
    [ft]
    SWC
    6684.0
    [ft]
    SWC
    6700.0
    [ft]
    DC
    6779.0
    [ft]
    SWC
    6790.0
    [ft]
    DC
    6880.0
    [ft]
    DC
    6894.0
    [ft]
    SWC
    7000.0
    [ft]
    DC
    7100.0
    [ft]
    DC
    7200.0
    [ft]
    DC
    7250.0
    [ft]
    DC
    7300.0
    [ft]
    DC
    7320.0
    [ft]
    DC
    7400.0
    [ft]
    DC
    7490.0
    [ft]
    DC
    7590.0
    [ft]
    DC
    7620.0
    [ft]
    DC
    7640.0
    [ft]
    DC
    7660.0
    [ft]
    DC
    7668.0
    [ft]
    DC
    7690.0
    [ft]
    DC
    7730.0
    [ft]
    DC
    7760.0
    [ft]
    DC
    7780.0
    [ft]
    DC
    7800.0
    [ft]
    DC
    7820.0
    [ft]
    DC
    7840.0
    [ft]
    DC
    7860.0
    [ft]
    DC
    7880.0
    [ft]
    DC
    7900.0
    [ft]
    DC
    7920.0
    [ft]
    DC
    7940.0
    [ft]
    DC
    7960.0
    [ft]
    DC
    7980.0
    [ft]
    DC
    8000.0
    [ft]
    DC
    8010.0
    [ft]
    DC
    8050.0
    [ft]
    DC
    8090.0
    [ft]
    DC
    8130.0
    [ft]
    DC
    8150.0
    [ft]
    DC
    8190.0
    [ft]
    DC
    8210.0
    [ft]
    DC
    8230.0
    [ft]
    DC
    8270.0
    [ft]
    DC
    8300.0
    [ft]
    DC
    8340.0
    [ft]
    DC
    8380.0
    [ft]
    DC
    8400.0
    [ft]
    DC
    8420.0
    [ft]
    DC
    8460.0
    [ft]
    DC
    8494.0
    [ft]
    SWC
    8500.0
    [ft]
    DC
    8500.0
    [ft]
    DC
    8540.0
    [ft]
    DC
    8560.0
    [ft]
    DC
    8580.0
    [ft]
    DC
    8600.0
    [ft]
    DC
    8619.0
    [ft]
    DC
    8620.0
    [ft]
    DC
    8640.0
    [ft]
    DC
    8646.0
    [ft]
    DC
    8670.0
    [ft]
    DC
    8700.0
    [ft]
    DC
    8784.0
    [ft]
    SWC
    8820.0
    [ft]
    DC
    8834.0
    [ft]
    SWC
    8848.0
    [ft]
    C
    8860.0
    [ft]
    DC
    8920.0
    [ft]
    DC
    8940.0
    [ft]
    DC
    8960.0
    [ft]
    DC
    8980.0
    [ft]
    DC
    9000.0
    [ft]
    DC
    9100.0
    [ft]
    DC
    9200.0
    [ft]
    DC
    9290.0
    [ft]
    DC
    9400.0
    [ft]
    DC
    9500.0
    [ft]
    DC
    9600.0
    [ft]
    DC
    9617.0
    [ft]
    SWC
    9700.0
    [ft]
    DC
    9800.0
    [ft]
    DC
    9900.0
    [ft]
    DC
    10000.0
    [ft]
    DC
    10090.0
    [ft]
    SWC
    10090.0
    [ft]
    DC
    10100.0
    [ft]
    DC
    10150.0
    [ft]
    DC
    10197.0
    [ft]
    SWC
    10200.0
    [ft]
    DC
    10223.0
    [ft]
    SWC
    10250.0
    [ft]
    DC
    10260.0
    [ft]
    DC
    10260.0
    [ft]
    DC
    10288.0
    [ft]
    DC
    10390.0
    [ft]
    DC
    10490.0
    [ft]
    DC
    10580.0
    [ft]
    DC
    10620.0
    [ft]
    DC
    10690.0
    [ft]
    DC
    10710.0
    [ft]
    DC
    10780.0
    [ft]
    DC
    10780.0
    [ft]
    DC
    10790.0
    [ft]
    DC
    10850.0
    [ft]
    DC
    10880.0
    [ft]
    DC
    10890.0
    [ft]
    DC
    10940.0
    [ft]
    DC
    10990.0
    [ft]
    DC
    11020.0
    [ft]
    DC
    11090.0
    [ft]
    DC
    11100.0
    [ft]
    DC
    11130.0
    [ft]
    DC
    11170.0
    [ft]
    DC
    11190.0
    [ft]
    DC
    11210.0
    [ft]
    DC
    11260.0
    [ft]
    DC
    11280.0
    [ft]
    DC
    11290.0
    [ft]
    DC
    11390.0
    [ft]
    DC
    11430.0
    [ft]
    DC
    11440.0
    [ft]
    DC
    11470.0
    [ft]
    DC
    11470.0
    [ft]
    DC
    11480.0
    [ft]
    DC
    11550.0
    [ft]
    DC
    11570.0
    [ft]
    DC
    11580.0
    [ft]
    DC
    11670.0
    [ft]
    DC
    11680.0
    [ft]
    DC
    11730.0
    [ft]
    DC
    11753.0
    [ft]
    C
    11756.0
    [ft]
    DC
    11762.6
    [ft]
    C
    RRI
    11784.0
    [ft]
    DC
    11791.0
    [ft]
    DC
    11803.0
    [ft]
    DC
    11807.0
    [ft]
    DC
    11811.0
    [ft]
    DC
    11813.9
    [ft]
    C
    RRI
    11815.0
    [ft]
    DC
    11816.0
    [ft]
    C
    11816.0
    [ft]
    C
    11818.0
    [ft]
    DC
    11843.0
    [ft]
    DC
    11845.0
    [ft]
    DC
    11875.0
    [ft]
    DC
    11877.0
    [ft]
    DC
    11890.0
    [ft]
    DC
    11891.0
    [ft]
    DC
    11893.0
    [ft]
    C
    RRI
    11895.0
    [ft]
    DC
    11925.0
    [ft]
    C
    RRI
    11928.0
    [ft]
    C
    11933.0
    [ft]
    DC
    11940.0
    [ft]
    C
    11945.0
    [ft]
    C
    11946.0
    [ft]
    C
    RRI
    11949.0
    [ft]
    DC
    11970.0
    [ft]
    DC
    11978.0
    [ft]
    DC
    12000.0
    [ft]
    DC
    12000.0
    [ft]
    SWC
    12020.0
    [ft]
    DC
    12030.0
    [ft]
    DC
    12070.0
    [ft]
    DC
    12070.0
    [ft]
    DC
    12080.0
    [ft]
    DC
    12090.0
    [ft]
    DC
    12090.0
    [ft]
    SWC
    12140.0
    [ft]
    DC
    12170.0
    [ft]
    DC
    12200.0
    [ft]
    DC
    12270.0
    [ft]
    DC
    12310.0
    [ft]
    SWC
    12320.0
    [ft]
    DC
    12330.0
    [ft]
    SWC
    12370.0
    [ft]
    DC
    12390.0
    [ft]
    SWC
    12400.0
    [ft]
    DC
    12470.0
    [ft]
    DC
    12500.0
    [ft]
    DC
    12505.0
    [ft]
    SWC
    12510.0
    [ft]
    SWC
    12550.0
    [ft]
    DC
    12550.0
    [ft]
    SWC
    12560.0
    [ft]
    SWC
    12570.0
    [ft]
    DC
    12600.0
    [ft]
    DC
    12670.0
    [ft]
    DC
    12700.0
    [ft]
    DC
    12770.0
    [ft]
    DC
    12800.0
    [ft]
    SWC
    12850.0
    [ft]
    DC
    12870.0
    [ft]
    DC
    12900.0
    [ft]
    DC
    12970.0
    [ft]
    DC
    12990.0
    [ft]
    SWC
    13000.0
    [ft]
    DC
    13000.0
    [ft]
    DC
    13070.0
    [ft]
    DC
    13170.0
    [ft]
    DC
    13200.0
    [ft]
    DC
    13270.0
    [ft]
    DC
    13300.0
    [ft]
    SWC
    13350.0
    [ft]
    SWC
    13370.0
    [ft]
    DC
    13380.0
    [ft]
    SWC
    13400.0
    [ft]
    SWC
    13440.0
    [ft]
    SWC
    13450.0
    [ft]
    DC
    13450.0
    [ft]
    SWC
    13460.0
    [ft]
    DC
    13470.0
    [ft]
    DC
    13520.0
    [ft]
    DC
    13570.0
    [ft]
    DC
    13670.0
    [ft]
    DC
    13710.0
    [ft]
    DC
    13770.0
    [ft]
    DC
    13830.0
    [ft]
    DC
    13842.0
    [ft]
    SWC
    13870.0
    [ft]
    DC
    13970.0
    [ft]
    DC
    14000.0
    [ft]
    DC
    14070.0
    [ft]
    DC
    14100.0
    [ft]
    DC
    14180.0
    [ft]
    DC
    14200.0
    [ft]
    DC
    14270.0
    [ft]
    DC
    14300.0
    [ft]
    DC
    14370.0
    [ft]
    DC
    14400.0
    [ft]
    DC
    14470.0
    [ft]
    DC
    14500.0
    [ft]
    DC
    14500.0
    [ft]
    SWC
    14570.0
    [ft]
    DC
    14600.0
    [ft]
    DC
    14650.0
    [ft]
    SWC
    14670.0
    [ft]
    DC
    14670.0
    [ft]
    DC
    14700.0
    [ft]
    DC
    14770.0
    [ft]
    DC
    14800.0
    [ft]
    DC
    14860.0
    [ft]
    DC
    14870.0
    [ft]
    DC
    14900.0
    [ft]
    SWC
    14950.0
    [ft]
    SWC
    14970.0
    [ft]
    DC
    14980.0
    [ft]
    SWC
    15000.0
    [ft]
    DC
    15070.0
    [ft]
    DC
    15070.0
    [ft]
    DC
    15118.0
    [ft]
    DC
    15138.0
    [ft]
    DC
    15160.0
    [ft]
    DC
    15170.0
    [ft]
    DC
    15250.0
    [ft]
    DC
    15270.0
    [ft]
    DC
    15275.0
    [ft]
    DC
    15350.0
    [ft]
    DC
    15370.0
    [ft]
    DC
    15430.0
    [ft]
    DC
    15470.0
    [ft]
    DC
    15540.0
    [ft]
    DC
    15570.0
    [ft]
    DC
    15670.0
    [ft]
    DC
    109800.0
    [ft]
    DC

  • 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
    3.45
    pdf
    4.63

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    BHC
    1313
    3122
    CAL
    2695
    3073
    DIL
    1314
    2704
    GR
    149
    1313
    IES
    2134
    3125

  • 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
    149.0
    36
    155.0
    0.00
    SURF.COND.
    20
    364.0
    26
    378.0
    0.00
    INTERM.
    13 3/8
    1310.0
    17 1/2
    1330.0
    0.00
    INTERM.
    9 5/8
    2679.0
    12 1/4
    2703.0
    0.00