Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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sodir.no          Norsk
22.12.2024 - 01:25
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30/6-28 S

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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.
    30/6-28 S
    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
    Press release
    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.
    30/6-28
    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.
    Statoil Petroleum AS
    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.
    1390-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.
    74
    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,
    16.01.2012
    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.
    29.03.2012
    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.
    29.03.2014
    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.
    29.03.2014
    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.
    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.
    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.
    YES
    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.
    EARLY 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.
    STATFJORD 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.
    110.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    4064.0
    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).
    3832.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    31
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    140
    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.
    60° 33' 59.47'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    2° 44' 40.7'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    6714691.29
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    486000.09
    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.
    6768

  • Wellbore history
    General
    Well 30/6-28 S was drilled in the Oseberg Alpha fault block, the main structure on the Oseberg Field. The primary objective was to test the Crux prospect in the Lomvi Formation in the Triassic Hegre Group. The secondary objective was to test the Crimp prospect in the Statfjord Group in an up flank position of the 30/6-17 well.
    Operations and results
    Due to shallow gas warnings a pilot hole (30/6-U-26) was drilled 15m south of the main well position. The pilot was drilled to 749 m in the Utsira Formation. No shallow gas indications while drilling the pilot and the main well were observed by the ROV or seen on the logs.
    Wildcat well 30/6-28 S was spudded with the semi-submersible installation COSL Pioneer on 16 January 2012 and drilled to TD at 4063 m in Late Triassic sediments in the Hegre Group. The well was drilled vertical down to 1020 m and deviated from there, reaching a ca 30 deg deviation at 2550 m. This deviation was kept down to ca 3850 m, from where the deviation fell back to 19 deg at TD. The well was drilled with sea water and hi-vis pills down to 1010 m, with Versatec oil based mud from 1010 m to 2075 m, and with Low-EDC-HTHP oil based mud from 2075 m to TD.
    Oil was found in the very top of the Statfjord Group with an estimated OWC at 2487.6 m (2453 m TVD) in the well. Due to an unexpected thick "Alke formation" (informal unit) within the Hegre Group the Lomvi Formation was not reached. The whole Triassic sequence was dry. No oil shows were described in the well.
    No cores were cut. MDT fluid samples were taken at 2484.7 m (oil) and 3549 m (water).
    The well was permanently abandoned on 29 March 2012 as an oil discovery.
    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]
    1020.00
    4063.00

  • 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
    MDT
    2485.00
    0.00
    OIL
    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
    198.5
    36
    202.0
    0.00
    LOT
    SURF.COND.
    20
    1003.0
    26
    1010.0
    1.54
    LOT
    INTERM.
    14
    2068.7
    17 1/2
    2075.0
    1.79
    LOT
    INTERM.
    9 5/8
    3382.0
    12 1/4
    3402.0
    1.78
    LOT
    OPEN HOLE
    4063.0
    8 1/2
    4063.0
    0.00
    LOT

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    CBL GR
    1385
    1940
    CBL VDL GR
    1415
    1993
    GYRO CBL VDL GR
    170
    2022
    GYRO USIT CBL GR
    1781
    3150
    MDT
    2470
    2550
    MDT GR
    3453
    4012
    MWD - ARCVRES9 PP
    202
    1010
    MWD - PDX5 ARCVRES9 TELE
    1010
    2075
    MWD - PDX5 AV8 TE ST VSO8 SADN8
    2075
    3402
    MWD - PDX5 AV8 TEL STET
    3402
    4063
    MWD - POWERPULSE
    135
    202
    PEX AIT MSIP
    3365
    4069
    PEX AIT MSIP
    3382
    3435
    VSP GR
    1755
    4052

  • Lithostratigraphy

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    996
    1.23
    20.0
    Versatec
    1013
    1.25
    22.0
    Versatec
    1481
    1.27
    23.0
    Versatec
    1628
    1.54
    37.0
    Versatec
    2018
    1.55
    30.0
    Versatec
    2075
    1.54
    43.0
    Versatec
    2131
    1.38
    12.0
    OBM-Low ECD
    2241
    1.39
    14.0
    OBM-Low ECD
    3080
    1.40
    14.0
    OBM-Low ECD-HTHP
    3129
    1.39
    14.0
    OBM-Low ECD-HTHP
    3317
    1.39
    16.0
    OBM-Low ECD-HTHP
    3402
    1.60
    25.0
    OBM-Low ECD-HTHP
    3405
    1.59
    22.0
    OBM-Low ECD-HTHP
    3781
    1.60
    23.0
    OBM-Low ECD-HTHP
    3800
    1.68
    27.0
    OBM-Low ECD-HTHP
    3800
    1.67
    27.0
    OBM-Low ECD-HTHP
    4063
    1.57
    25.0
    OBM-Low ECD-HTHP
    4063
    1.60
    25.0
    OBM-Low ECD-HTHP

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    2190.0
    [m]
    DC
    FUGRO
    2200.0
    [m]
    DC
    FUGRO
    2210.0
    [m]
    DC
    FUGRO
    2220.0
    [m]
    DC
    FUGRO
    2230.0
    [m]
    DC
    FUGRO
    2240.0
    [m]
    DC
    FUGRO
    2250.0
    [m]
    DC
    FUGRO
    2260.0
    [m]
    DC
    FUGRO
    2270.0
    [m]
    DC
    FUGRO
    2280.0
    [m]
    DC
    FUGRO
    2290.0
    [m]
    DC
    FUGRO
    2300.0
    [m]
    DC
    FUGRO
    2310.0
    [m]
    DC
    FUGRO
    2320.0
    [m]
    DC
    FUGRO
    2330.0
    [m]
    DC
    FUGRO
    2340.0
    [m]
    DC
    FUGRO
    2350.0
    [m]
    DC
    FUGRO
    2360.0
    [m]
    DC
    FUGRO
    2370.0
    [m]
    DC
    FUGRO
    2380.0
    [m]
    DC
    FUGRO
    2390.0
    [m]
    DC
    FUGRO
    2400.0
    [m]
    DC
    FUGRO
    2410.0
    [m]
    DC
    FUGRO
    2420.0
    [m]
    DC
    FUGRO
    2430.0
    [m]
    DC
    FUGRO
    2440.0
    [m]
    DC
    FUGRO
    2450.0
    [m]
    DC
    FUGRO
    2460.0
    [m]
    DC
    FUGRO
    2470.0
    [m]
    DC
    FUGRO
    2480.0
    [m]
    DC
    FUGRO
    2490.0
    [m]
    DC
    FUGRO
    2500.0
    [m]
    DC
    FUGRO
    2510.0
    [m]
    DC
    FUGRO
    2520.0
    [m]
    DC
    FUGRO
    2530.0
    [m]
    DC
    FUGRO
    2540.0
    [m]
    DC
    FUGRO
    2550.0
    [m]
    DC
    FUGRO
    2560.0
    [m]
    DC
    FUGRO
    2570.0
    [m]
    DC
    FUGRO
    2580.0
    [m]
    DC
    FUGRO
    2600.0
    [m]
    DC
    FUGRO
    2610.0
    [m]
    DC
    FUGRO
    2620.0
    [m]
    DC
    FUGRO
    2630.0
    [m]
    DC
    FUGRO
    2640.0
    [m]
    DC
    FUGRO
    2650.0
    [m]
    DC
    FUGRO
    2660.0
    [m]
    DC
    FUGRO
    2670.0
    [m]
    DC
    FUGRO
    2680.0
    [m]
    DC
    FUGRO
    2690.0
    [m]
    DC
    FUGRO
    2700.0
    [m]
    DC
    FUGRO
    2710.0
    [m]
    DC
    FUGRO
    2720.0
    [m]
    DC
    FUGRO
    2730.0
    [m]
    DC
    FUGRO
    2740.0
    [m]
    DC
    FUGRO
    2750.0
    [m]
    DC
    FUGRO
    2760.0
    [m]
    DC
    FUGRO
    2770.0
    [m]
    DC
    FUGRO
    2780.0
    [m]
    DC
    FUGRO
    2790.0
    [m]
    DC
    FUGRO
    2800.0
    [m]
    DC
    FUGRO
    2810.0
    [m]
    DC
    FUGRO
    2820.0
    [m]
    DC
    FUGRO
    2830.0
    [m]
    DC
    FUGRO
    2840.0
    [m]
    DC
    FUGRO
    2850.0
    [m]
    DC
    FUGRO
    2860.0
    [m]
    DC
    FUGRO
    2870.0
    [m]
    DC
    FUGRO
    2880.0
    [m]
    DC
    FUGRO
    2890.0
    [m]
    DC
    FUGRO
    2900.0
    [m]
    DC
    FUGRO
    2910.0
    [m]
    DC
    FUGRO
    2920.0
    [m]
    DC
    FUGRO
    2930.0
    [m]
    DC
    FUGRO
    2940.0
    [m]
    DC
    FUGRO
    2950.0
    [m]
    DC
    FUGRO
    2960.0
    [m]
    DC
    FUGRO
    2970.0
    [m]
    DC
    FUGRO
    2980.0
    [m]
    DC
    FUGRO
    2990.0
    [m]
    DC
    FUGRO
    3000.0
    [m]
    DC
    FUGRO
    3010.0
    [m]
    DC
    FUGRO
    3020.0
    [m]
    DC
    FUGRO
    3030.0
    [m]
    DC
    FUGRO
    3040.0
    [m]
    DC
    FUGRO
    3050.0
    [m]
    DC
    FUGRO
    3060.0
    [m]
    DC
    FUGRO
    3070.0
    [m]
    DC
    FUGRO
    3080.0
    [m]
    DC
    FUGRO
    3090.0
    [m]
    DC
    FUGRO
    3100.0
    [m]
    DC
    FUGRO
    3110.0
    [m]
    DC
    FUGRO
    3120.0
    [m]
    DC
    FUGRO
    3130.0
    [m]
    DC
    FUGRO
    3140.0
    [m]
    DC
    FUGRO
    3150.0
    [m]
    DC
    FUGRO
    3160.0
    [m]
    DC
    FUGRO
    3170.0
    [m]
    DC
    FUGRO
    3180.0
    [m]
    DC
    FUGRO
    3190.0
    [m]
    DC
    FUGRO
    3200.0
    [m]
    DC
    FUGRO
    3210.0
    [m]
    DC
    FUGRO
    3220.0
    [m]
    DC
    FUGRO
    3230.0
    [m]
    DC
    FUGRO
    3240.0
    [m]
    DC
    FUGRO
    3250.0
    [m]
    DC
    FUGRO
    3260.0
    [m]
    DC
    FUGRO
    3270.0
    [m]
    DC
    FUGRO
    3280.0
    [m]
    DC
    FUGRO
    3290.0
    [m]
    DC
    FUGRO
    3300.0
    [m]
    DC
    FUGRO
    3310.0
    [m]
    DC
    FUGRO
    3320.0
    [m]
    DC
    FUGRO
    3330.0
    [m]
    DC
    FUGRO
    3340.0
    [m]
    DC
    FUGRO
    3350.0
    [m]
    DC
    FUGRO
    3360.0
    [m]
    DC
    FUGRO
    3370.0
    [m]
    DC
    FUGRO
    3380.0
    [m]
    DC
    FUGRO
    3390.0
    [m]
    DC
    FUGRO
    3400.0
    [m]
    DC
    FUGRO
    3408.0
    [m]
    DC
    FUGRO
    3426.0
    [m]
    DC
    FUGRO
    3444.0
    [m]
    DC
    FUGRO
    3462.0
    [m]
    DC
    FUGRO
    3495.0
    [m]
    DC
    FUGRO
    3513.0
    [m]
    DC
    FUGRO
    3531.0
    [m]
    DC
    FUGRO
    3549.0
    [m]
    DC
    FUGRO
    3561.0
    [m]
    DC
    FUGRO
    3567.0
    [m]
    DC
    FUGRO
    3573.0
    [m]
    DC
    FUGRO
    3585.0
    [m]
    DC
    FUGRO
    3606.0
    [m]
    DC
    FUGRO
    3609.0
    [m]
    DC
    FUGRO
    3612.0
    [m]
    DC
    FUGRO
    3624.0
    [m]
    DC
    FUGRO
    3633.0
    [m]
    DC
    FUGRO
    3639.0
    [m]
    DC
    FUGRO
    3645.0
    [m]
    DC
    FUGRO
    3657.0
    [m]
    DC
    FUGRO
    3663.0
    [m]
    DC
    FUGRO
    3669.0
    [m]
    DC
    FUGRO
    3684.0
    [m]
    DC
    FUGRO
    3696.0
    [m]
    DC
    FUGRO
    3705.0
    [m]
    DC
    FUGRO
    3723.0
    [m]
    DC
    FUGRO
    3741.0
    [m]
    DC
    FUGRO
    3759.0
    [m]
    DC
    FUGRO
    3765.0
    [m]
    DC
    FUGRO
    3777.0
    [m]
    DC
    FUGRO
    3789.0
    [m]
    DC
    FUGRO
    3792.0
    [m]
    DC
    FUGRO
    3795.0
    [m]
    DC
    FUGRO
    3798.0
    [m]
    DC
    FUGRO
    3804.0
    [m]
    DC
    FUGRO
    3810.0
    [m]
    DC
    FUGRO
    3813.0
    [m]
    DC
    FUGRO
    3819.0
    [m]
    DC
    FUGRO
    3822.0
    [m]
    DC
    FUGRO
    3825.0
    [m]
    DC
    FUGRO
    3828.0
    [m]
    DC
    FUGRO
    3849.0
    [m]
    DC
    FUGRO
    3855.0
    [m]
    DC
    FUGRO
    3873.0
    [m]
    DC
    FUGRO
    3876.0
    [m]
    DC
    FUGRO
    3888.0
    [m]
    DC
    FUGRO
    3903.0
    [m]
    DC
    FUGRO
    3915.0
    [m]
    DC
    FUGRO
    3921.0
    [m]
    DC
    FUGRO
    3927.0
    [m]
    DC
    FUGRO
    3945.0
    [m]
    DC
    FUGRO
    3957.0
    [m]
    DC
    FUGRO
    3981.0
    [m]
    DC
    FUGRO
    3999.0
    [m]
    DC
    FUGRO
    4017.0
    [m]
    DC
    FUGRO
    4032.0
    [m]
    DC
    FUGRO
    4041.0
    [m]
    DC
    FUGRO
    4044.0
    [m]
    DC
    FUGRO