Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
sodir.no    Norsk
sodir.no          Norsk
31.10.2024 - 01:27
Time of last synchronization with Norwegian Offshore Directorate's internal systems

30/9-12

Export: PDF icon PDF

  • General information
    General information
    Attribute Value
    Wellbore name
    Official name of wellbore based on Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    30/9-12
    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
    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.
    30/9-12
    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.
    Norsk Hydro Produksjon 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.
    671-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.
    33
    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,
    07.04.1991
    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.
    09.05.1991
    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.
    09.05.1993
    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.
    29.06.2004
    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
    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.
    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.
    TARBERT FM
    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.
    104.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    2994.0
    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).
    2994.0
    Maximum inclination [°]
    Maximum deviation, in degrees, from a vertical well path.Shown only for released wells.
    3.4
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    118
    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.
    EARLY JURASSIC
    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.
    COOK FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    60° 25' 57.09'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    2° 51' 34.9'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    6699747.91
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    492276.08
    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.
    1717

  • Wellbore history
    General
    The well 30/9-12 is located on the southern part of the Alpha and Gamma structure in the Oseberg Sør area, some 4 km south of well 30/9-2, and approximately 100 m to the south of the licence boundary PL 079/104. The main target of the well was to appraise the southern extension of the Oseberg field, i.e. to improve the seismic mapping of the Alpha South/Gamma structural complex; to improve stratigraphical mapping and control of the hydrocarbon bearing Brent Group in the area; to test an oil/water contact in relation to the Oseberg Field and the C-structure; and to test communication relations in the Oseberg Field.
    Operations and results
    Appraisal well 30/9-12 was spudded with the semi-submersible installation Vildkat Explorer on the 7 April 1991 and drilled to TD at 2994 m in the Cook Formation of the Dunlin Group. The well was drilled with spud mud to 1016 m and with KCl polymer mud from 1016 m to TD. Shallow gas predicted at 184 m proved to be the base of a boulder zone, probably a glacially eroded horizon.
    The well proved a column of 10.3 m of moveable hydrocarbons oil in the Tarbert Formation with an oil down-to contact at 2674.5 m, However, as no oil/water contact was established, uncertainty remained as to the amount of hydrocarbon resources within the southern part of the Alpha South structure. A total of 70.4 m of net sand was calculated for the Brent sequence, with an average porosity of 21.5% and calculated average Sw of 26.1% in the Tarbert Formation.
    The pressure data obtained from the well indicated a significant depletion caused by production from Oseberg B.
    Good oil shows were recorded on cuttings from limestone stringers in the interval 2325 m to 2554 m in the Cretaceous and on sandstones (conventional and sidewall cores) in the interval 2658 m to 2673 m in the Tarbert Formation. A total of 10 conventional cores were cut, one in the Heather Formation and nine through the entire Brent sequence and into the top Dunlin. A total of 30 sidewall cores were attempted in the interval 2580 m to 2969.5 m. and 25 were recovered. One wire line RFT fluid sample was taken at 2667 m in the Tarbert Formation. It recovered 5 l of 0.87 g/cm3 oil and some gas.
    The well bore was plugged back to 950 m for sidetracking and permanently abandoned on 9 May 1991 as an oil appraisal.
    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]
    1030.00
    2992.00

  • 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
    2617.0
    2639.0
    [m ]
    2
    2663.0
    2691.0
    [m ]
    3
    2691.0
    2712.0
    [m ]
    4
    2714.0
    2726.0
    [m ]
    5
    2726.0
    2730.0
    [m ]
    6
    2730.0
    2734.0
    [m ]
    7
    2734.0
    2739.5
    [m ]
    8
    2739.5
    2753.0
    [m ]
    9
    2758.5
    2786.0
    [m ]
    10
    2788.0
    2804.2
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    153.7
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    YES

  • Core photos
    Core photos
    Core photo at depth: 2617-2622m
    Core photo at depth: 2622-2627m
    Core photo at depth: 2627-2632m
    Core photo at depth: 2632-2637m
    Core photo at depth: 2637-2666m
    2617-2622m
    2622-2627m
    2627-2632m
    2632-2637m
    2637-2666m
    Core photo at depth: 2666-2671m
    Core photo at depth: 2671-2676m
    Core photo at depth: 2676-2681m
    Core photo at depth: 2681-2686m
    Core photo at depth: 2686-2690m
    2666-2671m
    2671-2676m
    2676-2681m
    2681-2686m
    2686-2690m
    Core photo at depth: 2691-2696m
    Core photo at depth: 2696-2701m
    Core photo at depth: 2701-2708m
    Core photo at depth: 2708-2713m
    Core photo at depth: 2713-2718m
    2691-2696m
    2696-2701m
    2701-2708m
    2708-2713m
    2713-2718m
    Core photo at depth: 2718-2723m
    Core photo at depth: 2723-2725m
    Core photo at depth: 2726-2730m
    Core photo at depth: 2730-2735m
    Core photo at depth: 2735-2739m
    2718-2723m
    2723-2725m
    2726-2730m
    2730-2735m
    2735-2739m
    Core photo at depth: 2739-2744m
    Core photo at depth: 2744-2749m
    Core photo at depth: 2749-2752m
    Core photo at depth: 2758-2763m
    Core photo at depth: 2763-2768m
    2739-2744m
    2744-2749m
    2749-2752m
    2758-2763m
    2763-2768m
    Core photo at depth: 2768-2773m
    Core photo at depth: 2773-2778m
    Core photo at depth: 2778-2783m
    Core photo at depth: 2783-2790m
    Core photo at depth: 2790-2795m
    2768-2773m
    2773-2778m
    2778-2783m
    2783-2790m
    2790-2795m
    Core photo at depth: 2795-2800m
    Core photo at depth: 2800-2804m
    Core photo at depth:  
    Core photo at depth:  
    Core photo at depth:  
    2795-2800m
    2800-2804m

  • 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
    214.0
    36
    216.0
    0.00
    LOT
    INTERM.
    13 3/8
    1002.0
    17 1/2
    1019.0
    1.61
    LOT
    INTERM.
    9 5/8
    2528.0
    12 1/4
    2545.0
    1.69
    LOT
    OPEN HOLE
    2994.0
    8 1/2
    2994.0
    0.00
    LOT

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    CBL VDL GR
    1000
    2528
    CST
    2542
    2969
    DIL LSS LDL CNL NGL
    2490
    2993
    DIL LSS LDL SP GR
    1003
    2543
    DLL MSFL LDL CNL GR
    2475
    2800
    FMS4 GR CAL
    2527
    2995
    MWD - GR RES DIR
    128
    2994
    RFT B HP GR
    2661
    2780
    VSP
    1100
    2570
    VSP
    2580
    2990

  • Lithostratigraphy

  • Composite logs
    Composite logs
    Document name
    Document format
    Document size [MB]
    pdf
    0.40

  • 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
    11.92

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    182
    1.22
    WATER BASED
    08.04.1991
    216
    1.05
    WATER BASED
    09.04.1991
    610
    1.05
    WATER BASED
    10.04.1991
    1016
    1.05
    WATER BASED
    11.04.1991
    1016
    1.20
    WATER BASED
    12.04.1991
    1016
    1.20
    WATER BASED
    15.04.1991
    1061
    1.20
    15.0
    8.0
    WATER BASED
    15.04.1991
    1675
    1.40
    19.0
    11.0
    WATER BASED
    15.04.1991
    2276
    1.40
    22.0
    9.0
    WATER BASED
    17.04.1991
    2302
    1.42
    23.0
    10.0
    WATER BASED
    17.04.1991
    2400
    1.22
    12.0
    7.0
    WATER BASED
    08.05.1991
    2400
    1.26
    20.0
    12.0
    WATER BASED
    10.05.1991
    2405
    1.41
    22.0
    10.0
    WATER BASED
    18.04.1991
    2464
    1.39
    20.0
    10.0
    WATER BASED
    19.04.1991
    2545
    1.39
    21.0
    9.0
    WATER BASED
    22.04.1991
    2545
    1.40
    20.0
    8.0
    WATER BASED
    22.04.1991
    2545
    1.40
    20.0
    8.0
    WATER BASED
    22.04.1991
    2545
    1.40
    20.0
    9.0
    WATER BASED
    23.04.1991
    2548
    1.40
    17.0
    6.0
    WATER BASED
    25.04.1991
    2622
    1.21
    12.0
    7.0
    WATER BASED
    25.04.1991
    2664
    1.20
    13.0
    7.0
    WATER BASED
    26.04.1991
    2691
    1.22
    13.0
    7.0
    WATER BASED
    30.04.1991
    2704
    1.20
    13.0
    7.0
    WATER BASED
    30.04.1991
    2727
    1.20
    12.0
    6.0
    WATER BASED
    30.04.1991
    2738
    1.20
    13.0
    8.0
    WATER BASED
    30.04.1991
    2759
    1.20
    12.0
    6.0
    WATER BASED
    02.05.1991
    2788
    1.20
    14.0
    8.0
    WATER BASED
    02.05.1991
    2805
    1.20
    14.0
    7.0
    WATER BASED
    03.05.1991
    2805
    1.21
    14.0
    7.0
    WATER BASED
    06.05.1991
    2994
    1.21
    13.0
    7.0
    WATER BASED
    06.05.1991
    2994
    1.22
    13.0
    7.0
    WATER BASED
    07.05.1991
    2994
    1.22
    13.0
    7.0
    WATER BASED
    06.05.1991

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    1050.0
    [m]
    DC
    STRAT
    1070.0
    [m]
    DC
    STRAT
    1100.0
    [m]
    DC
    STRAT
    1130.0
    [m]
    DC
    STRAT
    1160.0
    [m]
    DC
    STRAT
    1190.0
    [m]
    DC
    STRAT
    1220.0
    [m]
    DC
    STRAT
    1250.0
    [m]
    DC
    STRAT
    1280.0
    [m]
    DC
    STRAT
    1310.0
    [m]
    DC
    STRAT
    1340.0
    [m]
    DC
    STRAT
    1360.0
    [m]
    DC
    STRAT
    1400.0
    [m]
    DC
    STRAT
    1430.0
    [m]
    DC
    STRAT
    1460.0
    [m]
    DC
    STRAT
    1490.0
    [m]
    DC
    STRAT
    1520.0
    [m]
    DC
    STRAT
    1550.0
    [m]
    DC
    STRAT
    1580.0
    [m]
    DC
    STRAT
    1610.0
    [m]
    DC
    STRAT
    1640.0
    [m]
    DC
    STRAT
    1820.0
    [m]
    DC
    STRAT
    1850.0
    [m]
    DC
    STRAT
    1880.0
    [m]
    DC
    STRAT
    1910.0
    [m]
    DC
    STRAT
    1940.0
    [m]
    DC
    STRAT
    1970.0
    [m]
    DC
    STRAT
    2030.0
    [m]
    DC
    STRAT
    2060.0
    [m]
    DC
    STRAT
    2090.0
    [m]
    DC
    STRAT
    2110.0
    [m]
    DC
    STRAT
    2150.0
    [m]
    DC
    STRAT
    2180.0
    [m]
    DC
    STRAT
    2210.0
    [m]
    DC
    STRAT
    2240.0
    [m]
    DC
    STRAT
    2270.0
    [m]
    DC
    HYDRO
    2300.0
    [m]
    DC
    HYDRO
    2360.0
    [m]
    DC
    STRAT
    2390.0
    [m]
    DC
    STRAT
    2450.0
    [m]
    DC
    STRAT
    2480.0
    [m]
    DC
    STRAT
    2510.0
    [m]
    DC
    STRAT
    2520.0
    [m]
    DC
    STRAT
    2522.0
    [m]
    C
    HYDRO
    2530.0
    [m]
    DC
    STRAT
    2542.5
    [m]
    SWC
    HYDRO
    2554.0
    [m]
    SWC
    HYDRO
    2560.0
    [m]
    SWC
    HYDRO
    2563.0
    [m]
    SWC
    HYDRO
    2566.0
    [m]
    SWC
    HYDRO
    2572.0
    [m]
    DC
    STRAT
    2580.0
    [m]
    SWC
    HYDRO
    2591.0
    [m]
    SWC
    HYDRO
    2600.0
    [m]
    SWC
    HYDRO
    2605.0
    [m]
    SWC
    HYDRO
    2609.0
    [m]
    SWC
    HYDRO
    2610.0
    [m]
    SWC
    HYDRO
    2611.0
    [m]
    SWC
    HYDRO
    2613.0
    [m]
    SWC
    HYDRO
    2617.1
    [m]
    C
    HYDRO
    2626.6
    [m]
    C
    HYDRO
    2632.3
    [m]
    C
    HYDRO
    2638.0
    [m]
    C
    HYDRO
    2643.0
    [m]
    SWC
    HYDRO
    2647.5
    [m]
    SWC
    HYDRO
    2657.0
    [m]
    SWC
    HYDRO
    2667.0
    [m]
    C
    HYDRO
    2672.8
    [m]
    C
    HYDRO
    2676.9
    [m]
    C
    HYDRO
    2685.0
    [m]
    C
    HYDRO
    2688.3
    [m]
    C
    HYDRO
    2693.4
    [m]
    C
    HYDRO
    2699.8
    [m]
    C
    HYDRO
    2706.5
    [m]
    C
    HYDRO
    2709.2
    [m]
    C
    HYDRO
    2723.5
    [m]
    C
    HYDRO
    2726.0
    [m]
    C
    HYDRO
    2728.0
    [m]
    C
    HYDRO
    2728.5
    [m]
    C
    HYDRO
    2731.5
    [m]
    C
    HYDRO
    2732.8
    [m]
    C
    HYDRO
    2738.6
    [m]
    C
    HYDRO
    2742.7
    [m]
    C
    HYDRO
    2751.8
    [m]
    C
    HYDRO
    2752.7
    [m]
    C
    HYDRO
    2785.0
    [m]
    C
    HYDRO
    2785.9
    [m]
    C
    HYDRO
    2790.0
    [m]
    C
    HYDRO
    2791.9
    [m]
    C
    HYDRO
    2799.9
    [m]
    C
    HYDRO
    2804.1
    [m]
    C
    HYDRO
    2815.0
    [m]
    DC
    STRAT
    2825.0
    [m]
    DC
    STRAT
    2835.0
    [m]
    DC
    STRAT
    2845.0
    [m]
    DC
    STRAT
    2855.0
    [m]
    DC
    STRAT
    2864.0
    [m]
    SWC
    HYDRO
    2875.0
    [m]
    DC
    STRAT
    2885.0
    [m]
    DC
    STRAT
    2895.0
    [m]
    DC
    STRAT
    2905.0
    [m]
    DC
    STRAT
    2915.0
    [m]
    DC
    STRAT
    2926.0
    [m]
    SWC
    HYDRO
    2935.0
    [m]
    DC
    STRAT
    2942.0
    [m]
    DC
    STRAT
    2948.5
    [m]
    SWC
    HYDRO
    2960.0
    [m]
    DC
    STRAT
    2969.5
    [m]
    SWC
    HYDRO
    2982.0
    [m]
    DC
    STRAT