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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30/10-3

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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.
    30/10-3
    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.
    30/10-3
    Seismic location
    Position of spud location on seismic survey lines. SP: shotpoint.
    LINE CS 73-27 SP.2390
    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.
    112-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.
    24
    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,
    08.08.1974
    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.
    31.08.1974
    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.
    31.08.1976
    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.
    30.09.2004
    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.
    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.
    GAS
    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.
    EOCENE
    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.
    FRIGG FM
    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.
    106.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    2255.0
    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).
    2255.0
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    53
    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.
    PALEOCENE
    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.
    HERMOD FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    60° 3' 12.27'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    2° 10' 2.06'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    6657806.99
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    453623.90
    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.
    393

  • Wellbore history
    General
    Well 30/10-3 was drilled on the Odin Discovery just north of the Frigg area. The main objective was to evaluate the Early Eocene sand ("Frigg Field Clastic Tongue") and appraise the 30/10-2 Odin gas Discovery.
    Operations and results
    Appraisal well 30/10-3 well was spudded with the semi-submersible installation Drillmaster on 8 August 1974 and drilled to TD at 2255 m in sands of the Paleocene Hermod Formation. Some anchor problems were experienced due to the sandy sea floor; otherwise no drilling problems were encountered during the operations. The mud used was a seawater, lignosulphonate system.
    Cuttings from 177 m to 704 m (Pliocene-Miocene undifferentiated) consisted of sand and shells (coquina). From 704 m to 1213 m (Oligocene) the section consisted of sand, coquina and traces of lignite between 780 m and 1213 m. From 1213 m to 1594 m the section is grey shale with stringers of thin micritic limestone. From 1594 m to 1823 m the section is predominantly grey shale with minor traces of micritic limestone. From 1824 m to 2030 m a green shale unit is present. At 2030 m (Top Frigg Clastic Tongue) the lithology changed to sand and continued to a depth of 2073 m. From 2073 m to 2182 m the section consisted of red brown shales and sands. From 2182 m to TD (Paleocene) the section is predominantly sand with some thin grey shales.
    The Paleocene sand was void of hydrocarbon shows. The Frigg Clastic Tongue was 43 m thick. Logs and cores indicated approximately 24 m of this interval contained oil and gas down to an oil-water contact at 2054 m. Net pay was 18 m of which 14 m was good clean gas sand and 4 m oil sand.
    Six cores were cut from 2010 m in the "Green shale unit" down to 2064 m, 34 m into the Frigg sand. Eight Formation Interval Test (FIT) fluid samples were recovered from four different depths in the Frigg sand. A sample from 2068.1 m 9.75 l water and 0.5 l mud; a sample from 2052.8 m contained 0.6 cf gas and 1.25 l oil; a sample from 2049.2 m contained 1 cf gas and 0.4 l oil; and a sample from 2040.6 m contained 32.5 cf of gas. The well was permanently abandoned on 31 August 1974 as an oil and gas appraisal 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]
    182.88
    2254.61

  • 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
    6594.0
    6624.0
    [ft ]
    2
    6620.0
    6655.0
    [ft ]
    3
    6653.0
    6683.0
    [ft ]
    4
    6682.0
    6712.0
    [ft ]
    5
    6712.0
    6745.0
    [ft ]
    6
    6742.0
    6772.0
    [ft ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    57.3
    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
    2080.0
    [ft]
    DC
    2200.0
    [ft]
    DC
    2320.0
    [ft]
    DC
    2370.0
    [ft]
    DC
    GEOCHEM
    2410.0
    [ft]
    DC
    2530.0
    [ft]
    DC
    2650.0
    [ft]
    DC
    2770.0
    [ft]
    DC
    2890.0
    [ft]
    DC
    3010.0
    [ft]
    DC
    3130.0
    [ft]
    DC
    3250.0
    [ft]
    DC
    3370.0
    [ft]
    DC
    3490.0
    [ft]
    DC
    3500.0
    [ft]
    SWC
    3550.0
    [ft]
    DC
    3670.0
    [ft]
    DC
    3760.0
    [ft]
    DC
    GEOCHEM
    3790.0
    [ft]
    DC
    3880.0
    [ft]
    DC
    GEOCHEM
    3910.0
    [ft]
    DC
    4000.0
    [ft]
    DC
    GEOCHEM
    4000.0
    [ft]
    DC
    4120.0
    [ft]
    DC
    GEOCHEM
    4120.0
    [ft]
    DC
    4200.0
    [ft]
    SWC
    4210.0
    [ft]
    DC
    GEOCHEM
    4240.0
    [ft]
    DC
    4300.0
    [ft]
    DC
    GEOCHEM
    4330.0
    [ft]
    DC
    4390.0
    [ft]
    DC
    GEOCHEM
    4420.0
    [ft]
    DC
    4480.0
    [ft]
    DC
    GEOCHEM
    4510.0
    [ft]
    DC
    4570.0
    [ft]
    DC
    GEOCHEM
    4600.0
    [ft]
    SWC
    4600.0
    [ft]
    DC
    4660.0
    [ft]
    DC
    GEOCHEM
    4690.0
    [ft]
    DC
    4720.0
    [ft]
    DC
    GEOCHEM
    4810.0
    [ft]
    DC
    4840.0
    [ft]
    DC
    GEOCHEM
    4900.0
    [ft]
    DC
    4960.0
    [ft]
    DC
    GEOCHEM
    5020.0
    [ft]
    DC
    5080.0
    [ft]
    DC
    GEOCHEM
    5140.0
    [ft]
    DC
    5200.0
    [ft]
    SWC
    5200.0
    [ft]
    DC
    GEOCHEM
    5260.0
    [ft]
    DC
    5320.0
    [ft]
    DC
    GEOCHEM
    5380.0
    [ft]
    DC
    5440.0
    [ft]
    DC
    GEOCHEM
    5500.0
    [ft]
    DC
    5560.0
    [ft]
    DC
    GEOCHEM
    5620.0
    [ft]
    DC
    5650.0
    [ft]
    DC
    GEOCHEM
    5710.0
    [ft]
    DC
    5740.0
    [ft]
    DC
    GEOCHEM
    5800.0
    [ft]
    SWC
    5800.0
    [ft]
    DC
    5830.0
    [ft]
    DC
    GEOCHEM
    5890.0
    [ft]
    DC
    5920.0
    [ft]
    DC
    GEOCHEM
    5980.0
    [ft]
    DC
    6010.0
    [ft]
    DC
    GEOCHEM
    6070.0
    [ft]
    DC
    6100.0
    [ft]
    DC
    GEOCHEM
    6160.0
    [ft]
    DC
    6190.0
    [ft]
    DC
    GEOCHEM
    6250.0
    [ft]
    DC
    6280.0
    [ft]
    DC
    GEOCHEM
    6340.0
    [ft]
    DC
    6430.0
    [ft]
    DC
    6460.0
    [ft]
    DC
    GEOCHEM
    6520.0
    [ft]
    DC
    6550.0
    [ft]
    DC
    GEOCHEM
    6597.0
    [ft]
    C
    6600.0
    [ft]
    C
    GEOCHEM
    6602.0
    [ft]
    C
    6602.0
    [ft]
    C
    6605.0
    [ft]
    C
    6607.0
    [ft]
    C
    6610.0
    [ft]
    C
    6614.0
    [ft]
    C
    6617.0
    [ft]
    C
    6620.0
    [ft]
    C
    6622.0
    [ft]
    C
    6626.0
    [ft]
    C
    6630.0
    [ft]
    C
    6633.0
    [ft]
    C
    6639.0
    [ft]
    C
    6643.0
    [ft]
    C
    6645.0
    [ft]
    C
    6645.0
    [ft]
    C
    GEOCHEM
    6646.0
    [ft]
    C
    6651.0
    [ft]
    C
    6654.0
    [ft]
    C
    6655.0
    [ft]
    C
    6705.0
    [ft]
    C
    GEOCHEM
    6765.0
    [ft]
    C
    GEOCHEM
    6770.0
    [ft]
    DC
    6860.0
    [ft]
    DC
    GEOCHEM
    6860.0
    [ft]
    DC
    6950.0
    [ft]
    DC
    GEOCHEM
    6950.0
    [ft]
    DC
    7040.0
    [ft]
    DC
    GEOCHEM
    7040.0
    [ft]
    DC
    7130.0
    [ft]
    DC
    GEOCHEM
    7130.0
    [ft]
    DC
    7220.0
    [ft]
    DC
    GEOCHEM
    7250.0
    [ft]
    DC
    7310.0
    [ft]
    DC
    GEOCHEM
    7310.0
    [ft]
    DC
    7380.0
    [ft]
    DC
    7397.0
    [ft]
    DC
    GEOCHEM

  • Lithostratigraphy
    Lithostratigraphy
    Top depth [mMD RKB]
    Lithostrat. unit
    130
    354
    1135
    2030
    2073
    2164
    2164
    2182
    2188

  • Composite logs
    Composite logs
    Document name
    Document format
    Document size [MB]
    pdf
    0.19

  • Geochemical information
    Geochemical information
    Document name
    Document format
    Document size [MB]
    pdf
    0.06
    pdf
    0.96

  • 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
    3.88

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    FDC CNT
    1937
    2237
    GR
    129
    2235
    HDT
    1524
    2238
    IES
    701
    2235
    SGR-C
    701
    2235
    VEL
    2040
    2071

  • 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
    166.0
    36
    170.0
    0.00
    LOT
    SURF.COND.
    13 3/8
    699.0
    17 1/2
    700.0
    0.00
    LOT
    OPEN HOLE
    2255.0
    12 1/4
    2255.0
    0.00
    LOT

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    720
    1.02
    seawater
    1645
    1.14
    seawater
    2054
    1.30
    seawater
    2255
    1.28
    seawater

  • 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
    0.20