Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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31.10.2024 - 01:27
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34/10-16

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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.
    34/10-16
    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
    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
    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.
    34/10-16
    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.
    357-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.
    119
    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,
    14.12.1982
    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.
    11.04.1983
    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.
    11.04.1985
    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.
    03.10.2011
    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
    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/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.
    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.
    138.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    4042.0
    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).
    4027.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    15
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    126
    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.
    LUNDE FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    61° 5' 35.62'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    2° 10' 46.66'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    6773609.61
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    455758.16
    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.
    59

  • Wellbore history
    General
    Well 34/10-16 was drilled on the Gullfaks Sør structure, 8 km south of the Gullfaks Field. The purpose of this well was to investigate a fault block, en echelon to the first fault block tested by well 34/10-2, for possible extension of hydrocarbon accumulation. The principal drilling objective was sandstones of the Brent Group. Secondary objectives were the Cook and Statfjord sands, of which the Statfjord sand proved the presence of oil in well 34/10-2.
    Operations and results
    Appraisal well 34/10-16 was spudded with the semi-submersible installation Nordraug on 14 December 1982 and drilled to TD at 4042 m (4027 m TVD) in the Late Triassic Lunde Formation. Excessive time were lost due to waiting on weather, hole problems, logging problems and other technical problems. These problems consumed a total of 1080 hours or 45 days downtime. The well was drilled with spud mud down to 225 m, with gel/seawater from 225 m to 617 m, and with lignosulphonate CMC/gel mud from 617 m to TD.
    The Brent Group came in at 3171 m and contained both oil and gas with the gas/oil contact at ca 3350 m and the oil/water contact at ca 3422 m, according to the logs. The gas net pay was estimated to 84 m with average porosity 18.2% and average water saturation 22.5%. The oil net pay was estimated to 29.5 m with average porosity 16.5% and average water saturation 38.9%. No hydrocarbons were encountered in the Cook and Statfjord Formations. No oil shows were recorded outside of the Brent Group.
    A total of 23 cores were cut, 22 of these covering nearly all of the Brent Group and the last one covering a sandstone in the upper Statfjord Formation. The RFT tool was run for fluid samples. Segregated RFT samples were recovered from 3356 m (oil) and 3345 m (condensate). No pressure points were acquired due to bad hole conditions.
    The well was temporary plugged 11 April 1983 and later re entered for drill stem testing. It is classified as an oil 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]
    230.00
    4039.00

  • 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
    3170.0
    3175.4
    [m ]
    2
    3177.0
    3195.0
    [m ]
    3
    3195.0
    3211.8
    [m ]
    4
    3219.0
    3228.5
    [m ]
    5
    3229.0
    3247.0
    [m ]
    6
    3247.0
    3260.5
    [m ]
    7
    3261.0
    3279.0
    [m ]
    8
    3280.0
    3297.0
    [m ]
    9
    3298.0
    3308.0
    [m ]
    10
    3311.0
    3322.0
    [m ]
    11
    3323.0
    3341.4
    [m ]
    12
    3341.4
    3348.4
    [m ]
    13
    3348.1
    3356.0
    [m ]
    14
    3359.0
    3363.0
    [m ]
    15
    3363.0
    3369.0
    [m ]
    16
    3369.0
    3378.0
    [m ]
    17
    3378.0
    3387.0
    [m ]
    18
    3387.0
    3395.8
    [m ]
    19
    3396.0
    3413.4
    [m ]
    20
    3414.0
    3430.5
    [m ]
    21
    3431.0
    3447.9
    [m ]
    22
    3450.0
    3465.8
    [m ]
    23
    3811.0
    3829.4
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    292.0
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    YES

  • Core photos
    Core photos
    Core photo at depth: 3170-3175m
    Core photo at depth: 3177-3184m
    Core photo at depth: 3184-3191m
    Core photo at depth: 3191-3195m
    Core photo at depth: 3195-3202m
    3170-3175m
    3177-3184m
    3184-3191m
    3191-3195m
    3195-3202m
    Core photo at depth: 3202-3209m
    Core photo at depth: 3209-3211m
    Core photo at depth: 3213-3220m
    Core photo at depth: 3220-3227m
    Core photo at depth: 3227-3228m
    3202-3209m
    3209-3211m
    3213-3220m
    3220-3227m
    3227-3228m
    Core photo at depth: 3229-3236m
    Core photo at depth: 3236-3243m
    Core photo at depth: 3243-3246m
    Core photo at depth: 3247-3254m
    Core photo at depth: 3254-3260m
    3229-3236m
    3236-3243m
    3243-3246m
    3247-3254m
    3254-3260m
    Core photo at depth: 3261-3267m
    Core photo at depth: 3268-3275m
    Core photo at depth: 3275-3279m
    Core photo at depth: 3280-3287m
    Core photo at depth: 3287-3294m
    3261-3267m
    3268-3275m
    3275-3279m
    3280-3287m
    3287-3294m
    Core photo at depth: 3294-3297m
    Core photo at depth: 3298-3305m
    Core photo at depth: 3305-3308m
    Core photo at depth: 3311-3318m
    Core photo at depth: 3318-3322m
    3294-3297m
    3298-3305m
    3305-3308m
    3311-3318m
    3318-3322m
    Core photo at depth: 3323-3330m
    Core photo at depth: 3330-3337m
    Core photo at depth: 3341-3348m
    Core photo at depth: 3348-3355m
    Core photo at depth: 3355-3356m
    3323-3330m
    3330-3337m
    3341-3348m
    3348-3355m
    3355-3356m
    Core photo at depth: 3359-3363m
    Core photo at depth: 3363-3369m
    Core photo at depth: 3369-3376m
    Core photo at depth: 3376-3378m
    Core photo at depth: 3378-3385m
    3359-3363m
    3363-3369m
    3369-3376m
    3376-3378m
    3378-3385m
    Core photo at depth: 3385-3387m
    Core photo at depth: 3387-3394m
    Core photo at depth: 3394-3395m
    Core photo at depth: 3396-3403m
    Core photo at depth: 3403-3410m
    3385-3387m
    3387-3394m
    3394-3395m
    3396-3403m
    3403-3410m
    Core photo at depth: 3410-3413m
    Core photo at depth: 3414-3421m
    Core photo at depth: 3421-3428m
    Core photo at depth: 3428-3430m
    Core photo at depth: 3431-3438m
    3410-3413m
    3414-3421m
    3421-3428m
    3428-3430m
    3431-3438m
    Core photo at depth: 3438-3445m
    Core photo at depth: 3445-3447m
    Core photo at depth: 3450-3457m
    Core photo at depth: 3457-3464m
    Core photo at depth: 3464-3465m
    3438-3445m
    3445-3447m
    3450-3457m
    3457-3464m
    3464-3465m
    Core photo at depth: 3811-3818m
    Core photo at depth: 3818-3825m
    Core photo at depth: 3825-3829m
    Core photo at depth:  
    Core photo at depth:  
    3811-3818m
    3818-3825m
    3825-3829m

  • Oil samples at the Norwegian Offshore Directorate
    Oil samples at the Norwegian Offshore Directorate
    Test type
    Bottle number
    Top depth
    MD [m]
    Bottom depth
    MD [m]
    Fluid type
    Test time
    Samples available
    DST
    TEST1
    3397.00
    3407.00
    OIL
    10.09.1983 - 00:00
    YES
    DST
    TEST2
    3177.00
    3187.00
    17.09.1983 - 00:00
    YES

  • 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
    225.0
    36
    226.0
    0.00
    LOT
    SURF.COND.
    20
    598.0
    26
    619.0
    1.46
    LOT
    INTERM.
    13 3/8
    1904.0
    17 1/2
    1920.0
    1.67
    LOT
    INTERM.
    9 5/8
    2915.0
    12 1/4
    2930.0
    1.87
    LOT
    LINER
    7
    4035.0
    9 1/2
    4042.0
    0.00
    LOT

  • Drill stem tests (DST)
    Drill stem tests (DST)
    Test number
    From depth MD
    [m]
    To depth MD
    [m]
    Choke size
    [mm]
    1.0
    3397
    3407
    19.0
    2.0
    3177
    3187
    20.6
    Drill stem tests (DST)
    Test number
    Final shut-in pressure
    [MPa]
    Final flow pressure
    [MPa]
    Bottom hole pressure
    [MPa]
    Downhole temperature
    [°C]
    1.0
    2.0
    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
    955
    182000
    0.860
    0.670
    191
    2.0
    400
    1647000
    0.790
    0.660
    4118

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    BGT
    2917
    3168
    CBL VDL GR
    899
    2917
    CBL VDL GR
    1684
    1910
    CBL VDL GR
    2758
    4010
    DLL GR
    3157
    3223
    ISF LSS GR MSFL
    163
    4043
    LDL CNL GR
    226
    4043
    NGS
    3150
    3500

  • Lithostratigraphy

  • Geochemical information
    Geochemical information
    Document name
    Document format
    Document size [MB]
    pdf
    1.66
    pdf
    4.59
    pdf
    0.19

  • 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
    0.25
    pdf
    3.05
    PDF
    44.91
    pdf
    0.57
    pdf
    3.43
    pdf
    0.23
    pdf
    0.23
    pdf
    0.63
    pdf
    2.56
    pdf
    36.40
    pdf
    3.16
    pdf
    4.47
    pdf
    2.47
    pdf
    2.79
    pdf
    7.97
    pdf
    15.00
    pdf
    5.97
    pdf
    0.09
    pdf
    1.32
    pdf
    2.07
    pdf
    2.25

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    225
    1.04
    waterbased
    425
    1.08
    waterbased
    720
    1.15
    waterbased
    1845
    1.27
    waterbased
    2215
    1.21
    waterbased
    3100
    1.52
    waterbased
    4040
    1.55
    waterbased

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    3015.0
    [m]
    DC
    GEOCH
    3036.0
    [m]
    DC
    GEOCH
    3048.0
    [m]
    DC
    GEOCH
    3063.0
    [m]
    DC
    GEOCH
    3072.0
    [m]
    DC
    GEOCH
    3084.0
    [m]
    DC
    GEOCH
    3093.0
    [m]
    DC
    GEOCH
    3105.0
    [m]
    DC
    GEOCH
    3114.0
    [m]
    DC
    GEOCH
    3123.0
    [m]
    DC
    GEOCH
    3135.0
    [m]
    DC
    GEOCH
    3147.0
    [m]
    DC
    GEOCH
    3159.0
    [m]
    DC
    GEOCH
    3165.0
    [m]
    DC
    GEOCH
    3390.0
    [m]
    C
    RRI
    3458.0
    [m]
    C
    RRI