Factpages Norwegian petroleum directorate
NPD          Norsk

16/1-1

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  • General information

    General information
    Attribute Value
    Wellbore name
    Official name of wellbore based on NPD guidelines for designation of wells and wellbores.
    16/1-1
    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 NPD.
    INJECTING: It was injected to the wellbore at the time of the operators last monthly report to the NPD.
    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
    Well name
    Official name of the parent well for the wellbore based on NPD guidelines for designation of wells and wellbores.
    16/1-1
    Seismic location
    Position of spud location on seismic survey lines. SP: shotpoint.
    C 309 C SP: 20470
    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 NPD.
    8-L
    Drilling facility
    NPD's name of the facility which the wellbore was drilled from.
    Drilling days
    Number of days from spud to completed. The first and last days of the operation is included in the count. Days where the drilling operations has been suspende, is not included. Days used for predrilling is not included. These are made available where applicable.
    76
    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,
    26.09.1967
    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.
    10.12.1967
    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.
    10.12.1969
    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.
    28.06.2007
    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.
    OIL SHOWS
    Discovery wellbore
    Indicator which telles if the wellbore made a new discovery. Legal values: YES, NO.
    NO
    Kelly bushing elevation [m]
    Elevation of the rotary kelly bushing (RKB) above mean sea level.
    26.0
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    114.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    3203.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    4.25
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    95
    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.
    HOD FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    58° 59' 18.4'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    2° 2' 3'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    6539317.03
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    444490.52
    UTM zone
    Universal Transverse Mercator zone. Examples of legal values: 31, 32, 33, 34.
    31
    NPDID wellbore
    NPD's unique id for the wellbore.
    147
  • Wellbore history

    General
    Well 16/1-1 is located roughly midway between the Gudrun Discovery and the Balder Field in the North Sea. This early wildcat well had the general objective to: " -test the hydrocarbon potential and investigate the lithology in this portion of the North Sea basin".
    The well is Type Well for the Utsira Formation.
    Operations and results
    Wildcat well 16/1-1 was spudded with the semi-submersible installation Ocean Traveler on 26 September 1967 and drilled to TD at 3203 m in the Late Cretaceous Hod Formation. No significant problems were reported from the operations. Initial drilling from the sea floor to 392 m was with seawater and gel without casing. Returns were to the sea floor. Below 392 m to total depth, a seawater slurry with Bentonite, Zeogel, Spersene, XP-20, Caustic Soda, and 0-12% diesel oil was used.
    Porous sandstone was observed in the Miocene, Oligocene, and Eocene. There were also Paleocene sands in the well. Traces of possible residual oil stain were encountered in cuttings and cores from the Oligocene and Eocene. In addition, questionable shows (non-fluorescent dead oil) were reported on cores from the Paleocene. However, neither the hot wire gas indicator nor chromatograph suggested the presence of hydrocarbons.
    A total of 18 cores were cut from the different formations within the Hordaland, Rogaland, and Shetland Groups, recovering a total of 171 m core. The depth for core 2 is probably incorrect, possibly be five meter shallow due to malfunction of the bumper subs. FIT wire line fluid samples were taken in potential hydrocarbon-yielding beds at 1878.5 m, 2532.9 m, and at 2592.3 m. Only water and mud were recovered.
    The well was permanently abandoned on 10 December 1967 as a dry well.
    Testing
    No drill stem test was performed.
  • Cores at the NPD

    Cores at the NPD
    Core sample number
    Core sample - top depth
    Core sample - bottom depth
    Core sample depth - uom
    1
    5100.0
    5130.0
    [ft ]
    2
    5643.0
    5673.0
    [ft ]
    3
    6315.0
    6349.0
    [ft ]
    4
    7060.0
    7103.0
    [ft ]
    5
    7353.0
    7407.0
    [ft ]
    6
    7609.0
    7639.0
    [ft ]
    7
    7639.0
    7692.0
    [ft ]
    8
    7692.0
    7701.0
    [ft ]
    9
    0.0
    10
    7932.0
    7959.0
    [ft ]
    11
    7962.0
    7992.0
    [ft ]
    12
    7992.0
    8022.0
    [ft ]
    13
    8305.0
    8332.0
    [ft ]
    14
    8619.0
    8646.0
    [ft ]
    15
    8680.0
    8690.0
    [ft ]
    16
    8699.0
    8760.0
    [ft ]
    17
    8934.0
    8975.0
    [ft ]
    18
    10479.0
    10509.0
    [ft ]
    Cores at the NPD
    Total core sample length [m]
    171.0
    Cores at the NPD
    Cores available for sampling?
    NO
  • Palynological slides at the NPD

    Palynological slides at the NPD
    Sample depth
    Depth unit
    Sample type
    Laboratory
    0.0
    [unknown]
    1.0
    [ft]
    C
    1554.0
    [m]
    C
    BGS
    1559.0
    [m]
    C
    BGS
    1563.0
    [m]
    C
    BGS
    1720.0
    [m]
    C
    BGS
    1729.0
    [m]
    C
    BGS
    2152.5
    [m]
    C
    BGS
    2161.5
    [m]
    C
    BGS
    2165.0
    [m]
    C
    BGS
    2329.0
    [m]
    C
    BGS
    2344.0
    [m]
    C
    STAT
    2427.0
    [m]
    C
    BGS
    2656.0
    [m]
    C
    BGS
    2727.0
    [m]
    C
    BGS
    2728.0
    [m]
    C
    BGS
    2980.0
    [m]
    C
    3100.0
    [m]
    C
    3280.0
    [m]
    C
    3400.0
    [m]
    C
    3490.0
    [m]
    C
    3580.0
    [m]
    C
    3700.0
    [m]
    C
    3700.0
    [m]
    C
    3790.0
    [m]
    C
    3910.0
    [m]
    C
    4000.0
    [m]
    C
    4090.0
    [m]
    C
    4180.0
    [m]
    C
    4300.0
    [m]
    C
    4390.0
    [m]
    C
    4480.0
    [m]
    C
    4580.0
    [m]
    C
    4690.0
    [m]
    C
    4710.0
    [m]
    C
    4790.0
    [m]
    C
    4820.0
    [m]
    C
    4880.0
    [m]
    C
    4900.0
    [m]
    C
    4980.0
    [m]
    C
    5000.0
    [m]
    C
    5080.0
    [m]
    C
    5100.0
    [m]
    C
    5100.0
    [m]
    C
    5110.0
    [m]
    C
    5180.0
    [m]
    C
    5180.0
    [m]
    C
    5270.0
    [m]
    C
    5300.0
    [m]
    C
    5390.0
    [m]
    C
    5480.0
    [m]
    C
    5570.0
    [m]
    C
    5643.0
    [m]
    C
    5643.0
    [m]
    C
    5645.0
    [m]
    C
    5657.0
    [m]
    C
    5672.0
    [m]
    C
    5673.0
    [m]
    C
    5790.0
    [m]
    C
    5840.0
    [m]
    C
    5880.0
    [m]
    C
    5900.0
    [m]
    C
    5940.0
    [m]
    C
    5980.0
    [m]
    C
    6000.0
    [m]
    C
    6080.0
    [m]
    C
    6100.0
    [m]
    C
    6190.0
    [m]
    C
    6190.0
    [m]
    C
    6280.0
    [m]
    C
    6300.0
    [m]
    C
    6315.0
    [m]
    C
    6345.0
    [m]
    C
    6375.0
    [m]
    C
    6480.0
    [m]
    C
    6500.0
    [m]
    C
    6580.0
    [m]
    C
    6600.0
    [m]
    C
    6680.0
    [m]
    C
    6700.0
    [m]
    C
    6780.0
    [m]
    C
    6800.0
    [m]
    C
    6890.0
    [m]
    C
    6900.0
    [m]
    C
    6985.0
    [m]
    C
    7000.0
    [m]
    C
    7060.0
    [m]
    C
    7062.0
    [m]
    C
    7065.0
    [m]
    C
    7065.0
    [m]
    C
    7066.0
    [m]
    C
    7067.0
    [m]
    C
    7072.0
    [m]
    C
    7078.0
    [m]
    C
    7084.0
    [m]
    C
    7087.0
    [m]
    C
    7092.0
    [m]
    C
    7094.0
    [m]
    C
    7096.0
    [m]
    C
    7099.0
    [m]
    C
    7100.0
    [m]
    C
    7102.0
    [m]
    C
    7103.0
    [m]
    C
    7103.0
    [m]
    C
    7150.0
    [m]
    C
    EXXON
    7190.0
    [m]
    C
    7200.0
    [m]
    C
    7240.0
    [m]
    C
    EXXON
    7290.0
    [m]
    C
    7300.0
    [m]
    C
    7353.0
    [m]
    C
    7353.0
    [m]
    C
    7382.0
    [m]
    C
    7387.0
    [m]
    C
    EXXON
    7405.0
    [m]
    C
    EXXON
    7450.0
    [m]
    C
    7480.0
    [m]
    C
    7490.0
    [m]
    C
    7500.0
    [m]
    C
    7520.0
    [m]
    DC
    7550.0
    [m]
    DC
    7580.0
    [m]
    DC
    7600.0
    [m]
    DC
    7609.0
    [m]
    C
    7609.0
    [m]
    C
    7615.0
    [m]
    C
    7617.0
    [m]
    C
    7620.0
    [m]
    DC
    7639.0
    [m]
    C
    EXXON
    7639.0
    [m]
    DC
    7644.0
    [m]
    DC
    7645.0
    [m]
    DC
    7692.0
    [m]
    C
    EXXON
    7696.0
    [m]
    DC
    7746.0
    [m]
    DC
    EXXON
    7790.0
    [m]
    DC
    7800.0
    [m]
    DC
    7850.0
    [m]
    DC
    7880.0
    [m]
    DC
    7900.0
    [m]
    DC
    7945.0
    [m]
    DC
    7963.5
    [m]
    DC
    7969.5
    [m]
    DC
    7980.0
    [m]
    DC
    8011.0
    [m]
    DC
    8060.0
    [m]
    DC
    EXXON
    8100.0
    [m]
    DC
    8150.0
    [m]
    DC
    EXXON
    8200.0
    [m]
    DC
    8250.0
    [m]
    DC
    EXXON
    8290.0
    [m]
    DC
    8305.0
    [m]
    DC
    8323.0
    [m]
    C
    EXXON
    8340.0
    [m]
    DC
    8380.0
    [m]
    DC
    EXXON
    8380.0
    [m]
    DC
    8400.0
    [m]
    DC
    8450.0
    [m]
    DC
    8500.0
    [m]
    DC
    8520.0
    [m]
    SWC
    EXXON
    8550.0
    [m]
    DC
    EXXON
    8558.0
    [m]
    SWC
    EXXON
    8560.0
    [m]
    DC
    EXXON
    8563.0
    [m]
    SWC
    EXXON
    8595.0
    [m]
    SWC
    EXXON
    8619.0
    [m]
    DC
    8620.0
    [m]
    C
    EXXON
    8622.0
    [m]
    DC
    8627.0
    [m]
    DC
    8630.0
    [m]
    DC
    8632.0
    [m]
    C
    8632.0
    [m]
    DC
    8632.0
    [m]
    SWC
    EXXON
    8634.0
    [m]
    DC
    8641.0
    [m]
    DC
    8644.0
    [m]
    DC
    8645.0
    [m]
    SWC
    EXXON
    8675.0
    [m]
    SWC
    EXXON
    8675.0
    [m]
    SWC
    EXXON
    8680.0
    [m]
    C
    EXXON
    8680.0
    [m]
    DC
    8680.0
    [m]
    DC
    8682.0
    [m]
    DC
    8685.0
    [m]
    SWC
    EXXON
    8700.0
    [m]
    C
    EXXON
    8730.0
    [m]
    SWC
    EXXON
    8778.0
    [m]
    SWC
    EXXON
    8780.0
    [m]
    DC
    EXXON
    8820.0
    [m]
    DC
    EXXON
    8835.0
    [m]
    SWC
    EXXON
    8855.0
    [m]
    SWC
    EXXON
    8870.0
    [m]
    DC
    EXXON
    8875.0
    [m]
    SWC
    EXXON
    8905.0
    [m]
    SWC
    EXXON
    8915.0
    [m]
    SWC
    EXXON
    8925.0
    [m]
    DC
    8934.0
    [m]
    C
    8934.0
    [m]
    DC
    8940.0
    [m]
    DC
    8941.0
    [m]
    DC
    8941.0
    [m]
    C
    8954.0
    [m]
    C
    8957.0
    [m]
    C
    8962.0
    [m]
    SWC
    EXXON
    8983.0
    [m]
    SWC
    EXXON
    9000.0
    [m]
    DC
    9005.0
    [m]
    SWC
    EXXON
    9035.0
    [m]
    SWC
    EXXON
    9050.0
    [m]
    DC
    9100.0
    [m]
    DC
    EXXON
    9100.0
    [m]
    DC
    9150.0
    [m]
    DC
    EXXON
    9200.0
    [m]
    DC
    EXXON
    9250.0
    [m]
    DC
    EXXON
    9300.0
    [m]
    DC
    EXXON
    9810.0
    [m]
    DC
    10060.0
    [m]
    DC
    10140.0
    [m]
    DC
    10175.0
    [m]
    DC
    10240.0
    [m]
    DC
    10340.0
    [m]
    DC
    10396.0
    [m]
    DC
    10509.0
    [m]
    DC
    10509.0
    [m]
    DC
  • Lithostratigraphy

  • Composite logs

    Composite logs
    Document name
    Document format
    Document size [MB]
    pdf
    0.55
  • Geochemical information

    Geochemical information
    Document name
    Document format
    Document size [MB]
    pdf
    1.25
    pdf
    1.13
  • 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
    5.96
    pdf
    1.74
  • Documents – NPD papers

    Documents – NPD papers
    Document name
    Document format
    Document size [MB]
    pdf
    12.73
    pdf
    89.24
  • Logs

    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    CDM
    1401
    3205
    FDC
    1401
    3207
    GR BHC
    137
    3203
    IES
    388
    3206
    MLL
    388
    3206
    SNP
    1401
    2593
  • 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
    174.0
    36
    175.0
    0.00
    LOT
    SURF.COND.
    20
    387.0
    26
    390.0
    0.00
    LOT
    INTERM.
    9 5/8
    1400.0
    12 1/4
    1401.0
    0.00
    LOT
    OPEN HOLE
    3203.0
    8 1/2
    3203.0
    0.00
    LOT
  • Drilling mud

    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    391
    0.00
    seawater
    1000
    0.00
    bent/Zeo/sp
  • Thin sections at the NPD

    Thin sections at the NPD
    Depth
    Unit
    2250.00
    [m ]
    2250.00
    [m ]
    2250.00
    [m ]
    2250.00
    [m ]
    2251.00
    [m ]
    2251.00
    [m ]
    2251.00
    [m ]
    2251.00
    [m ]
    2251.00
    [m ]
    2251.00
    [m ]
    2251.00
    [m ]
    2251.00
    [m ]
    2251.00
    [m ]
  • 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
    0.21