Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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22.11.2024 - 09:09
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7220/5-3

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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.
    7220/5-3
    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).
    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
    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.
    BARENTS SEA
    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.
    7220/5-3
    Seismic location
    Position of spud location on seismic survey lines. SP: shotpoint.
    ST13M07-BIN. Inline: 12025. Xline: 10432
    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.
    Equinor Energy 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.
    1719-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.
    30
    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,
    27.09.2018
    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.
    26.10.2018
    Plugged and abondon date
    Date when the P&A-operations of the wellbore was finished, as reported by the operator to the Norwegian Offshore Directorate throught DDRS (Daily Drilling Reporting System). Only applied once pr. wellhead/surface location.
    26.10.2018
    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.
    26.10.2020
    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.
    26.10.2020
    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
    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.
    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.
    STØ FM
    Kelly bushing elevation [m]
    Elevation of the rotary kelly bushing (RKB) above mean sea level.
    32.0
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    409.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    1782.0
    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).
    1782.0
    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.
    FRUHOLMEN FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    72° 35' 53.36'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    20° 22' 59.75'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    8063927.82
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    679491.33
    UTM zone
    Universal Transverse Mercator zone. Examples of legal values: 31, 32, 33, 34.
    33
    NPDID wellbore
    Norwegian Offshore Directorate's unique id for the wellbore.
    8539

  • Wellbore history
    General
    Well 7220/5-3 was drilled to test the Skruis prospect on the Polhem Sub-platform 12 kilometres north of the 7220/8-1 Skrugard discovery in the Barents Sea. The primary objective was to prove petroleum in reservoir rocks from the Early-Middle Jurassic Age (the Stø and Nordmela formations). The secondary objective was to prove petroleum in reservoir rocks from the Early Jurassic Age (the Tubåen Formation).
    Operations and results
    Wildcat well 7220/5-3 was spudded with the semi-submersible installation Songa Enabler on 27 September 2018 and drilled to TD at 1782 m in the Late Triassic Fruholmen Formation. Operations proceeded without significant problems. The well was drilled with seawater and hi-vis sweeps down to 493 m, with KCl/Polymer/GEM mud from 493 to 1030 m, and with Enviromul oil-based mud from 1030 m to TD.
    Top Stø Formation was encountered at 1413 m and contained a total oil column of about 35 m, 30 m of which was effective reservoir in sandstone with moderate to good reservoir quality. The oil/water contact was encountered at 1449 m, and good oil shows down to 1462 m, described with direct and cut fluorescence and light brown staining. The Stø Formation has about 30 meters of water-bearing sandstone below the oil/water contact, with mainly good reservoir properties. The Nordmela Formation has water-bearing sandstone layers totalling more than 100 meters with moderate to good reservoir quality. In the Tubåen Formation, the sandstone layers have moderate to good reservoir properties.
    No shows are reported outside of the Stø and Nordmela reservoir.
    One 72.4 m long core was cut from 1424 to 1496 m in the Stø and Nordmela formations. MDT fluid samples were taken at 1414.2 m (oil), 1426 m (oil), 1448 m (oil), and 1459 m (water).
    The well was permanently abandoned on 26 October 2018 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]
    620.00
    1782.00

  • 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
    1424.0
    1496.5
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    72.5
    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
    710.0
    [m]
    DC
    CGG
    730.0
    [m]
    DC
    CGG
    750.0
    [m]
    DC
    CGG
    770.0
    [m]
    DC
    CGG
    790.0
    [m]
    DC
    CGG
    810.0
    [m]
    DC
    CGG
    830.0
    [m]
    DC
    CGG
    850.0
    [m]
    DC
    CGG
    870.0
    [m]
    DC
    CGG
    900.0
    [m]
    DC
    CGG
    910.0
    [m]
    DC
    CGG
    930.0
    [m]
    DC
    CGG
    950.0
    [m]
    DC
    CGG
    970.0
    [m]
    DC
    CGG
    990.0
    [m]
    DC
    CGG
    1010.0
    [m]
    DC
    CGG
    1030.0
    [m]
    DC
    CGG
    1050.0
    [m]
    DC
    CGG
    1070.0
    [m]
    DC
    CGG
    1090.0
    [m]
    DC
    CGG
    1110.0
    [m]
    DC
    CGG
    1130.0
    [m]
    DC
    CGG
    1150.0
    [m]
    DC
    CGG
    1170.0
    [m]
    DC
    CGG
    1190.0
    [m]
    DC
    CGG
    1210.0
    [m]
    DC
    CGG
    1230.0
    [m]
    DC
    CGG
    1250.0
    [m]
    DC
    CGG
    1270.0
    [m]
    DC
    CGG
    1290.0
    [m]
    DC
    CGG
    1310.0
    [m]
    DC
    CGG
    1330.0
    [m]
    DC
    CGG
    1348.0
    [m]
    DC
    CGG
    1355.0
    [m]
    DC
    CGG
    1357.0
    [m]
    DC
    CGG
    1363.0
    [m]
    DC
    CGG
    1364.5
    [m]
    SWC
    CGG
    1369.0
    [m]
    DC
    CGG
    1375.0
    [m]
    DC
    CGG
    1381.0
    [m]
    DC
    CGG
    1387.0
    [m]
    DC
    CGG
    1393.0
    [m]
    DC
    CGG
    1396.8
    [m]
    SWC
    CGG
    1399.0
    [m]
    DC
    CGG
    1405.0
    [m]
    DC
    CGG
    1406.5
    [m]
    SWC
    CGG
    1410.6
    [m]
    SWC
    CGG
    1411.0
    [m]
    DC
    CGG
    1412.8
    [m]
    SWC
    CGG
    1413.5
    [m]
    SWC
    CGG
    1414.0
    [m]
    DC
    CGG
    1417.0
    [m]
    DC
    CGG
    1420.0
    [m]
    DC
    CGG
    1424.9
    [m]
    C
    CGG
    1429.9
    [m]
    C
    CGG
    1435.0
    [m]
    C
    CGG
    1439.8
    [m]
    C
    CGG
    1443.9
    [m]
    C
    CGG
    1446.2
    [m]
    C
    CGG
    1446.7
    [m]
    C
    CGG
    1451.9
    [m]
    C
    CGG
    1457.0
    [m]
    C
    CGG
    1471.9
    [m]
    C
    CGG
    1480.7
    [m]
    C
    CGG
    1483.4
    [m]
    C
    CGG
    1484.7
    [m]
    C
    CGG
    1487.3
    [m]
    C
    CGG
    1492.5
    [m]
    C
    CGG
    1499.5
    [m]
    SWC
    CGG
    1501.0
    [m]
    DC
    CGG
    1507.0
    [m]
    DC
    CGG
    1513.0
    [m]
    DC
    CGG
    1519.0
    [m]
    DC
    CGG
    1525.0
    [m]
    DC
    CGG
    1531.0
    [m]
    DC
    CGG
    1537.0
    [m]
    DC
    CGG
    1543.0
    [m]
    DC
    CGG
    1549.0
    [m]
    DC
    CGG
    1555.0
    [m]
    DC
    CGG
    1561.0
    [m]
    DC
    CGG
    1567.0
    [m]
    DC
    CGG
    1573.0
    [m]
    DC
    CGG
    1579.0
    [m]
    DC
    CGG
    1585.0
    [m]
    DC
    CGG
    1591.0
    [m]
    DC
    CGG
    1597.0
    [m]
    DC
    CGG
    1603.0
    [m]
    DC
    CGG
    1609.0
    [m]
    DC
    CGG
    1613.7
    [m]
    SWC
    CGG
    1615.0
    [m]
    DC
    CGG
    1621.0
    [m]
    DC
    CGG
    1627.0
    [m]
    DC
    CGG
    1633.0
    [m]
    DC
    CGG
    1634.1
    [m]
    SWC
    CGG
    1639.0
    [m]
    DC
    CGG
    1645.0
    [m]
    DC
    CGG
    1651.0
    [m]
    DC
    CGG
    1657.0
    [m]
    DC
    CGG
    1663.0
    [m]
    DC
    CGG
    1669.0
    [m]
    DC
    CGG
    1675.0
    [m]
    DC
    CGG
    1681.0
    [m]
    DC
    CGG
    1687.0
    [m]
    DC
    CGG
    1692.7
    [m]
    SWC
    CGG
    1693.0
    [m]
    DC
    CGG
    1699.0
    [m]
    DC
    CGG
    1705.0
    [m]
    DC
    CGG
    1708.0
    [m]
    SWC
    CGG
    1711.0
    [m]
    DC
    CGG
    1717.0
    [m]
    DC
    CGG
    1723.0
    [m]
    DC
    CGG
    1729.0
    [m]
    DC
    CGG
    1735.0
    [m]
    DC
    CGG
    1741.0
    [m]
    DC
    CGG
    1747.0
    [m]
    DC
    CGG
    1753.0
    [m]
    DC
    CGG
    1759.0
    [m]
    DC
    CGG
    1765.0
    [m]
    DC
    CGG
    1771.0
    [m]
    DC
    CGG
    1777.0
    [m]
    DC
    CGG

  • Lithostratigraphy
    Lithostratigraphy
    Top depth [mMD RKB]
    Lithostrat. unit
    441
    490
    1009
    1364
    1377
    1413
    1479
    1626
    1692

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    MDT
    1349
    1404
    MDT
    1413
    1426
    MDT
    1414
    1459
    MDT CMR
    1413
    1660
    MWD LWD - ARC TELE
    492
    1782
    MWD LWD - TELE
    441
    492
    NGI MDT
    1404
    1441
    XL ROCK
    1355
    1753
    ZAIT PEX ECS MSIP NGIT
    1349
    1781
    ZO VSP
    438
    1718

  • 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
    36
    491.0
    42
    493.0
    0.00
    INTERM.
    13 3/8
    1030.0
    17 1/2
    1030.0
    1.40
    LOT
    INTERM.
    9 5/8
    1346.0
    12 1/4
    1348.0
    1.58
    LOT
    OPEN HOLE
    1782.0
    8 1/2
    1782.0
    0.00

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    468
    1.05
    12.0
    Spud Mud
    492
    1.25
    18.0
    KCl/Polymer/GEM
    535
    1.21
    16.0
    KCl/Polymer/GEM
    865
    1.21
    18.0
    KCl/Polymer/GEM
    1030
    1.21
    20.0
    KCl/Polymer/GEM
    1030
    1.12
    24.0
    Enviromul
    1348
    1.12
    27.0
    Enviromul
    1351
    1.22
    19.0
    Enviromul
    1509
    1.22
    20.0
    Enviromul
    1782
    1.22
    19.0
    Enviromul