Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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21.11.2024 - 01:28
Time of last synchronization with Norwegian Offshore Directorate's internal systems

34/10-14

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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.
    34/10-14
    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.
    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.
    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.
    34/10-14
    Seismic location
    Position of spud location on seismic survey lines. SP: shotpoint.
    3D - 136 SP 285
    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.
    312-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.
    86
    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,
    24.12.1981
    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.
    19.03.1982
    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.
    19.03.1984
    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.
    09.12.2014
    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.
    APPRAISAL
    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.
    OIL
    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
    1st level with HC, age
    Age of lithostratigraphic unit, 1st level, where hydrocarbons were encountered. Examples of legal values: CRETACEOUS, EARLY CRETACEOUS, LATE JURASSIC, EOCENE. See also Norwegian Offshore Directorate bulletins.
    MIDDLE JURASSIC
    1st level with HC, formation
    Name of lithostartigraphic unit, 1st level, where hydrocarbons were encountered. Shown only for released wells. Examples of legal values: BASEMENT, COOK FM, EKOFISK FM, HEIMDAL FM, SANDNES FM, SOGNEFJORD FM, TARBERT FM, BRENT GP. See also Norwegian Offshore Directorate bulletins.
    BRENT GP
    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.
    227.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    2647.0
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    98
    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 TRIASSIC
    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.
    HEGRE GP
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    61° 14' 0.5'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    2° 15' 18.87'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    6789182.27
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    460013.70
    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.
    95

  • Wellbore history
    General
    Well 34/10-14 was drilled on a horst block in the north-eastern part of the Gullfaks field. The objectives of the well were to prove the structural position of the middle- and early Jurassic sandstones and to establish the oil-water contact in the Brent Group in this part of the field.
    Operations and results
    Appraisal well 34/10-14 was spudded with the semi-submersible installation Ross Rig on 24 December 1981 and drilled to TD at 2647 m in the Triassic Hegre Group. Significant downtime (17% of total rig time) was caused by the combined effect of bad weather and the need to pull the BOP three times to detect leaks. The well was drilled with gel/lignosulphonate/seawater mud all through.
    Weak shows on limestone and claystone cuttings were recorded intermittently from 1506 m in the Hordaland down to top Shetland Group at 1729 m. Sandstones of the Ness Formation were oil-bearing from 1908 m to the oil-water contact, indicated by pressure measurements and logs to be at 1972 m. This corresponds to the OWC found in the wells 34/10-3, 5 and 8. Shows on cores continued down to 2002 m.
    Ten cores were recovered, nine in the interval from 1889 to 2047m KB and one core from 2210 to 2228 KB. RFT fluid sampling was performed at 1917.5 m and 1961.5 m but the fluids recovered were not representative for the reservoir fluid.
    The well was permanently abandoned on 19 March 1982 as an oil appraisal well.
    Testing
    One drill stem test was performed in the interval 1933.5 m to 1937.5 m in the Ness Formation. The test produced 713 Sm3 oil/day through a 34/64” choke. The GOR was 67 Sm3/Sm3, separator oil gravity was 29.4 °API, and gas gravity was 0.67 (air = 1). The maximum temperature at gauge depth was 75 °C.

  • 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]
    310.00
    2643.00

  • 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
    1889.0
    1895.9
    [m ]
    2
    1907.8
    1921.9
    [m ]
    3
    1925.0
    1932.7
    [m ]
    4
    1939.5
    1949.4
    [m ]
    5
    1957.0
    1972.5
    [m ]
    6
    1972.5
    1990.4
    [m ]
    7
    1991.0
    2009.4
    [m ]
    8
    2010.0
    2028.0
    [m ]
    9
    2028.0
    2047.0
    [m ]
    10
    2210.0
    2224.5
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    141.9
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    YES

  • Core photos
    Core photos
    Core photo at depth: 1889-1893m
    Core photo at depth: 1893-1895m
    Core photo at depth: 1907-1912m
    Core photo at depth: 1912-1916m
    Core photo at depth: 1916-1921m
    1889-1893m
    1893-1895m
    1907-1912m
    1912-1916m
    1916-1921m
    Core photo at depth: 1921-1922m
    Core photo at depth: 1925-1929m
    Core photo at depth: 1929-1932m
    Core photo at depth: 1939-1944m
    Core photo at depth: 1944-1948m
    1921-1922m
    1925-1929m
    1929-1932m
    1939-1944m
    1944-1948m
    Core photo at depth: 1948-1949m
    Core photo at depth: 1957-1961m
    Core photo at depth: 1961-1966m
    Core photo at depth: 1966-1970m
    Core photo at depth: 1970-1972m
    1948-1949m
    1957-1961m
    1961-1966m
    1966-1970m
    1970-1972m
    Core photo at depth: 1972-1977m
    Core photo at depth: 1977-1981m
    Core photo at depth: 1981-1986m
    Core photo at depth: 1986-1990m
    Core photo at depth: 1990-1995m
    1972-1977m
    1977-1981m
    1981-1986m
    1986-1990m
    1990-1995m
    Core photo at depth: 1995-2000m
    Core photo at depth: 2000-2004m
    Core photo at depth: 2004-2009m
    Core photo at depth: 2009-2010m
    Core photo at depth: 2010-2014m
    1995-2000m
    2000-2004m
    2004-2009m
    2009-2010m
    2010-2014m
    Core photo at depth: 2014-2019m
    Core photo at depth: 2019-2023m
    Core photo at depth: 2023-2028m
    Core photo at depth: 2028-2032m
    Core photo at depth: 2032-2037m
    2014-2019m
    2019-2023m
    2023-2028m
    2028-2032m
    2032-2037m
    Core photo at depth: 2037-2041m
    Core photo at depth: 2041-2046m
    Core photo at depth: 2046-2047m
    Core photo at depth: 2210-2214m
    Core photo at depth: 2214-2219m
    2037-2041m
    2041-2046m
    2046-2047m
    2210-2214m
    2214-2219m
    Core photo at depth: 2219-2223m
    Core photo at depth: 2223-2224m
    Core photo at depth:  
    Core photo at depth:  
    Core photo at depth:  
    2219-2223m
    2223-2224m

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    1465.0
    [m]
    DC
    GEOCH
    1490.0
    [m]
    DC
    GEOCH
    1505.0
    [m]
    DC
    GEOCH
    1545.0
    [m]
    DC
    GEOCH
    1615.0
    [m]
    DC
    GEOCH
    1645.0
    [m]
    DC
    GEOCH
    1655.0
    [m]
    DC
    GEOCH
    1705.0
    [m]
    DC
    CGG
    1725.0
    [m]
    DC
    GEOCH
    2156.0
    [m]
    SWC
    RRI
    2165.0
    [m]
    SWC
    RRI
    2190.0
    [m]
    SWC
    RRI
    2202.0
    [m]
    SWC
    RRI
    2209.0
    [m]
    SWC
    RRI
    2229.4
    [m]
    SWC
    RRI
    2241.0
    [m]
    SWC
    RRI
    2255.0
    [m]
    SWC
    RRI
    2269.0
    [m]
    SWC
    RRI

  • Lithostratigraphy

  • 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
    2.28
    pdf
    21.54
    pdf
    1.70
    pdf
    0.19
    pdf
    0.94
    pdf
    0.61
    pdf
    0.23
    pdf
    1.91

  • Drill stem tests (DST)
    Drill stem tests (DST)
    Test number
    From depth MD
    [m]
    To depth MD
    [m]
    Choke size
    [mm]
    1.0
    1934
    1937
    12.7
    Drill stem tests (DST)
    Test number
    Final shut-in pressure
    [MPa]
    Final flow pressure
    [MPa]
    Bottom hole pressure
    [MPa]
    Downhole temperature
    [°C]
    1.0
    Drill stem tests (DST)
    Test number
    Oil
    [Sm3/day]
    Gas
    [Sm3/day]
    Oil density
    [g/cm3]
    Gas grav. rel.air
    GOR
    [m3/m3]
    1.0
    850
    81000
    0.820
    0.650
    95

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    C H CNL GR
    1896
    2000
    CBL VDL GR
    780
    2292
    CYBERDIP
    1796
    2645
    DIR
    1796
    2649
    DLL MSFL GR
    1796
    2116
    FDC CNL GR
    785
    2644
    HDT
    1796
    2645
    ISF SON MAFL GR
    242
    2643
    TDT GR
    1900
    2050
    VDL LSS
    1900
    2150

  • 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
    313.0
    36
    314.0
    0.00
    LOT
    SURF.COND.
    20
    785.0
    26
    800.0
    1.80
    LOT
    INTERM.
    13 3/8
    1554.0
    17 1/2
    1568.0
    1.85
    LOT
    INTERM.
    9 5/8
    1799.0
    12 1/4
    1810.0
    1.93
    LOT
    LINER
    7
    2297.0
    8 1/2
    2300.0
    2.38
    LOT
    OPEN HOLE
    2647.0
    6
    2647.0
    0.00
    LOT

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    365
    1.07
    waterbased
    830
    1.15
    waterbased
    1340
    1.30
    waterbased
    1570
    1.50
    waterbased
    1810
    1.72
    waterbased
    1930
    1.80
    waterbased
    2320
    1.64
    waterbased

  • 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
    0.22