Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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22.12.2024 - 01:25
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6506/11-3

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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.
    6506/11-3
    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
    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.
    NORWEGIAN SEA
    Well name
    Official name of the parent well for the wellbore based on Norwegian Offshore Directorate guidelines for designation of wells and wellbores.
    6506/11-3
    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.
    734-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.
    86
    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,
    08.07.1992
    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.
    02.10.1992
    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.
    02.10.1994
    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.
    02.03.2004
    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.
    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.
    SHOWS
    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
    Kelly bushing elevation [m]
    Elevation of the rotary kelly bushing (RKB) above mean sea level.
    24.0
    Water depth [m]
    Depth in metres betweem mean sea level and sea floor.
    328.0
    Total depth (MD) [m RKB]
    Total measured length of wellbore from kelly bushing to total depth (driller's depth).
    4350.0
    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).
    4346.0
    Bottom hole temperature [°C]
    Estimated temperature at final total depth of the wellbore. Shown only for released wells. See discription.
    127
    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.
    MIDDLE 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.
    NOT FM
    Geodetic datum
    Reference system for coordinates. Example of legal values: ED50.
    ED50
    NS degrees
    Geographic coordinate of the wellhead, north-south degrees.
    65° 13' 58.44'' N
    EW degrees
    Geographic coordinate of the wellhead, east-west degrees.
    6° 22' 26.89'' E
    NS UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, north-south.
    7237146.88
    EW UTM [m]
    Universal Transverse Mercator coordinate of the wellhead, east-west.
    377273.80
    UTM zone
    Universal Transverse Mercator zone. Examples of legal values: 31, 32, 33, 34.
    32
    NPDID wellbore
    Norwegian Offshore Directorate's unique id for the wellbore.
    1973

  • Wellbore history
    General
    The well 6506/11-3 is located in the Haltenbanken region, north west of the Smørbukk area. The objectives of well 6506/11-3 were: to prove oil in the Lysing, Lange (Cretaceous) and the Rogn (Jurassic) Formation; to test the hydrocarbon potential of the Nise Formation and the Åre Formation; and to penetrate the Upper Triassic and test the reservoir potential in order to prepare for relinquishment.
    Operations and results
    Well 6506/11-3 was spudded with the semi-submersible installation Ross Rig on 8 July 1992 and drilled to TD at 4350 m in the Middle Jurassic Not Formation. The well was drilled with seawater and hi-vis pills down to 1020 m, with Gypsum/PAC-Polymer mud from 1020 m to 2020 m, with Gypsum/PAC/Thermopol/Ancotemp mud from 2020 m to 3717 m, and with Ancotherm mud from 3717 m to TD. Due to high pressure the well was terminated at a shallower depth than prognosis
    Top Nise Formation was encountered at 2357 m and proved to be 196 m thick. It was predominantly Clay/Claystone with some thin sandstone layers, mostly in the upper part. The Lysing Formation was tested and produced water with minor amounts of gas. Only 2 m Spekk Formation was encountered and the Rogn Formation was not developed. Sandstones of the Jurassic Garn Formation were water bearing. Shows were recorded in the Lysing and Garn Formation.
    Post-well geochemical screening of cores showed shales of good potential in the interval 3920 m to 3990 m across the Cenomanian ? Turonian in the Lange Formation. This may possibly be seen as an equivalent to the Blodøks Formation in the North Sea.
    Ten cores were cut in the well. Core 1 was cut from 3143.5 m to 3170.5 m in the Lysing Formation. Cores 2, 3, and 4 were cut in the interval 3919 m to 3945.6 m in Upper Cenomanian ? Turonian sediments of the Lange Formation. Cores 5, 6, and 7 were cut in the interval 3976 m to 4003 m in Albian to Cenomanian sediments of the Lange Formation. Cores 8, 9, and 10 were cut in the interval 4172 m to 4224 m in the Garn Formation. Two FMT samples were taken: one at 3933.5 m TVD RKB in the Lange Formation and one at 4189.7 m TVD RKB in the Garn Formation. A thin hydrocarbon film was observed on the sample from the Lange Formation. The well was permanently abandoned on 2 October 1992 as a dry well with shows.
    Testing
    One DST in the interval 3122 m to 3142 m in the Lysing Formation was performed. The test flowed 482 Sm3 water and 1817 Sm3 gas per day through a 12.7 mm choke

  • 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
    4350.00

  • 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
    3143.5
    3170.0
    [m ]
    2
    3919.0
    3929.7
    [m ]
    3
    3930.0
    3943.6
    [m ]
    4
    3943.6
    3945.0
    [m ]
    5
    3976.0
    3984.4
    [m ]
    6
    3986.0
    3993.0
    [m ]
    7
    3993.0
    4000.9
    [m ]
    8
    4172.0
    4173.7
    [m ]
    9
    4174.0
    4202.0
    [m ]
    10
    4202.0
    4223.8
    [m ]
    Cores at the Norwegian Offshore Directorate
    Total core sample length [m]
    127.0
    Cores at the Norwegian Offshore Directorate
    Cores available for sampling?
    YES

  • Core photos
    Core photos
    Core photo at depth: 3143-3147m
    Core photo at depth: 3147-3151m
    Core photo at depth: 3151-3155m
    Core photo at depth: 3155-3159m
    Core photo at depth: 3159-3163m
    3143-3147m
    3147-3151m
    3151-3155m
    3155-3159m
    3159-3163m
    Core photo at depth: 3163-3167m
    Core photo at depth: 3167-3170m
    Core photo at depth: 3919-3924m
    Core photo at depth: 3924-3929m
    Core photo at depth: 3929-3930m
    3163-3167m
    3167-3170m
    3919-3924m
    3924-3929m
    3929-3930m
    Core photo at depth: 3930-3935m
    Core photo at depth: 3935-3940m
    Core photo at depth: 3940-3943m
    Core photo at depth: 3943-3945m
    Core photo at depth: 3976-3981m
    3930-3935m
    3935-3940m
    3940-3943m
    3943-3945m
    3976-3981m
    Core photo at depth: 3981-3985m
    Core photo at depth: 3986-3991m
    Core photo at depth: 3991-3993m
    Core photo at depth: 3993-3998m
    Core photo at depth: 3998-4000m
    3981-3985m
    3986-3991m
    3991-3993m
    3993-3998m
    3998-4000m
    Core photo at depth: 4172-4173m
    Core photo at depth: 4174-4179m
    Core photo at depth: 4179-4184m
    Core photo at depth: 4184-4189m
    Core photo at depth: 4189-4194m
    4172-4173m
    4174-4179m
    4179-4184m
    4184-4189m
    4189-4194m
    Core photo at depth: 4194-4199m
    Core photo at depth: 4199-4202m
    Core photo at depth: 4202-4207m
    Core photo at depth: 4207-4212m
    Core photo at depth: 4212-4217m
    4194-4199m
    4199-4202m
    4202-4207m
    4207-4212m
    4212-4217m
    Core photo at depth: 4217-4222m
    Core photo at depth: 4222-4224m
    Core photo at depth:  
    Core photo at depth:  
    Core photo at depth:  
    4217-4222m
    4222-4224m

  • 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
    411.0
    36
    414.0
    0.00
    LOT
    INTERM.
    20
    1012.0
    22
    1014.0
    1.61
    LOT
    INTERM.
    16
    2005.0
    20
    2010.0
    1.75
    LOT
    INTERM.
    9 5/8
    3700.0
    12 1/4
    3717.0
    2.10
    LOT
    OPEN HOLE
    4350.0
    8 1/2
    4350.0
    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
    3120
    3142
    12.7
    Drill stem tests (DST)
    Test number
    Final shut-in pressure
    [MPa]
    Final flow pressure
    [MPa]
    Bottom hole pressure
    [MPa]
    Downhole temperature
    [°C]
    1.0
    3.000
    34.000
    105
    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
    1817

  • Logs
    Logs
    Log type
    Log top depth [m]
    Log bottom depth [m]
    DIFL ACL GR SP
    450
    4349
    DIFL ACL GR SP
    3695
    4063
    DIFL ACL GR SP
    4123
    4217
    DIFL CDL ACL GR SP
    1009
    1420
    DIFL DAC GR
    2004
    3716
    DIFL ZDL ACL GR SP
    1350
    1908
    DIPLOG
    3702
    4057
    DIPLOG
    4024
    4350
    DLL MLL SL
    3695
    4019
    FMT GR
    3044
    3090
    FMT GR
    4174
    4206
    FMT GR
    4206
    4323
    MWD
    420
    2020
    MWD - CDR
    3782
    4350
    MWD - CDR CDN
    2020
    3782
    SWC
    2183
    3701
    SWC
    4143
    4347
    VSP
    1980
    4330
    ZDENS CN GR
    3695
    4063
    ZDENS CN GR
    4126
    4215

  • Lithostratigraphy

  • Composite logs
    Composite logs
    Document name
    Document format
    Document size [MB]
    pdf
    0.57

  • Geochemical information
    Geochemical information
    Document name
    Document format
    Document size [MB]
    pdf
    0.52
    pdf
    19.32

  • 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
    23.01

  • Drilling mud
    Drilling mud
    Depth MD [m]
    Mud weight [g/cm3]
    Visc. [mPa.s]
    Yield point [Pa]
    Mud type
    Date measured
    1186
    1.12
    17.0
    WATER BASED
    1667
    1.35
    21.0
    WATER BASED
    2015
    1.50
    29.0
    WATER BASED
    2016
    1.50
    35.0
    WATER BASED
    2020
    1.52
    32.0
    WATER BASED
    2300
    1.70
    29.0
    WATER BASED
    3024
    1.70
    29.0
    WATER BASED
    3120
    1.70
    29.0
    WATER BASED
    3717
    1.70
    29.0
    WATER BASED
    3798
    1.70
    25.0
    WATER BASED
    3919
    1.70
    27.0
    WATER BASED
    3923
    1.75
    24.0
    WATER BASED
    3937
    1.92
    31.0
    WATER BASED
    3944
    1.77
    27.0
    WATER BASED
    3976
    1.84
    30.0
    WATER BASED
    3987
    1.84
    28.0
    WATER BASED
    4003
    1.84
    30.0
    WATER BASED
    4063
    1.92
    34.0
    WATER BASED
    4100
    1.88
    34.0
    WATER BASED
    4174
    1.88
    37.0
    WATER BASED
    4196
    1.88
    33.0
    WATER BASED
    4202
    1.88
    35.0
    WATER BASED
    4224
    1.88
    26.0
    WATER BASED
    4255
    1.90
    49.0
    WATER BASED
    4310
    1.90
    27.0
    WATER BASED
    4323
    1.90
    36.0
    WATER BASED
    4324
    1.90
    35.0
    WATER BASED
    4350
    1.93
    33.0
    WATER BASED

  • Palynological slides at the Norwegian Offshore Directorate
    Palynological slides at the Norwegian Offshore Directorate
    Sample depth
    Depth unit
    Sample type
    Laboratory
    1940.0
    [m]
    DC
    RRI
    1960.0
    [m]
    DC
    RRI
    1970.0
    [m]
    DC
    RRI
    1990.0
    [m]
    DC
    RRI
    2000.0
    [m]
    DC
    RRI
    2030.0
    [m]
    DC
    RRI
    2040.0
    [m]
    DC
    RRI
    2050.0
    [m]
    DC
    RRI
    2060.0
    [m]
    DC
    RRI
    2183.0
    [m]
    SWC
    STATO
    2186.5
    [m]
    SWC
    STATO
    2205.0
    [m]
    SWC
    STATO
    2740.0
    [m]
    DC
    RRI
    2770.0
    [m]
    DC
    RRI
    2800.0
    [m]
    DC
    RRI
    2830.0
    [m]
    DC
    RRI
    2860.0
    [m]
    DC
    RRI
    2890.0
    [m]
    DC
    RRI
    2920.0
    [m]
    DC
    RRI
    2950.0
    [m]
    DC
    RRI
    2980.0
    [m]
    DC
    RRI
    3010.0
    [m]
    DC
    RRI
    3040.0
    [m]
    DC
    RRI
    3056.0
    [m]
    SWC
    STATO
    3082.0
    [m]
    SWC
    STATO
    3107.0
    [m]
    SWC
    STATO
    3120.0
    [m]
    DC
    RRI
    3126.0
    [m]
    SWC
    STATO
    3130.0
    [m]
    DC
    RRI
    3132.0
    [m]
    SWC
    STATO
    3145.1
    [m]
    C
    STATO
    3147.6
    [m]
    C
    STATO
    3155.4
    [m]
    C
    STATO
    3158.5
    [m]
    C
    STATO
    3166.7
    [m]
    C
    STATO
    3178.0
    [m]
    DC
    RRI
    3184.0
    [m]
    DC
    RRI
    3191.0
    [m]
    SWC
    STATO
    3219.0
    [m]
    DC
    RRI
    3234.0
    [m]
    DC
    RRI
    3246.0
    [m]
    DC
    RRI
    3260.0
    [m]
    DC
    RRI
    3300.0
    [m]
    DC
    RRI
    3310.0
    [m]
    DC
    RRI
    3330.0
    [m]
    DC
    RRI
    3350.0
    [m]
    SWC
    STATO
    3360.0
    [m]
    DC
    RRI
    3380.0
    [m]
    DC
    RRI
    3400.0
    [m]
    DC
    RRI
    3420.0
    [m]
    DC
    RRI
    3440.0
    [m]
    DC
    RRI
    3460.0
    [m]
    DC
    RRI
    3480.0
    [m]
    DC
    RRI
    3500.0
    [m]
    DC
    RRI
    3520.0
    [m]
    DC
    RRI
    3540.0
    [m]
    DC
    RRI
    3560.0
    [m]
    DC
    RRI
    3580.0
    [m]
    DC
    RRI
    3600.0
    [m]
    DC
    RRI
    3620.0
    [m]
    DC
    RRI
    3640.0
    [m]
    DC
    RRI
    3661.0
    [m]
    SWC
    STATO
    3680.0
    [m]
    DC
    RRI
    3700.0
    [m]
    DC
    RRI
    3720.0
    [m]
    DC
    RRI
    3730.0
    [m]
    DC
    RRI
    3750.0
    [m]
    DC
    RRI
    3760.0
    [m]
    DC
    RRI
    3780.0
    [m]
    DC
    RRI
    3790.0
    [m]
    DC
    RRI
    3805.0
    [m]
    DC
    RRI
    3815.0
    [m]
    DC
    RRI
    3825.0
    [m]
    DC
    RRI
    3840.0
    [m]
    DC
    RRI
    3855.0
    [m]
    DC
    RRI
    3870.0
    [m]
    DC
    RRI
    3885.0
    [m]
    DC
    RRI
    3900.0
    [m]
    DC
    RRI
    3915.0
    [m]
    DC
    RRI
    3919.6
    [m]
    C
    STATO
    3927.6
    [m]
    C
    STATO
    3933.5
    [m]
    C
    STATO
    3942.8
    [m]
    C
    STATO
    3945.4
    [m]
    C
    STATO
    3960.0
    [m]
    DC
    RRI
    3979.1
    [m]
    C
    STATO
    3981.4
    [m]
    C
    STATO
    3985.3
    [m]
    C
    STATO
    4000.8
    [m]
    C
    STATO
    4020.0
    [m]
    DC
    RRI
    4040.0
    [m]
    DC
    RRI
    4050.0
    [m]
    DC
    RRI
    4070.0
    [m]
    DC
    RRI
    4080.0
    [m]
    DC
    RRI
    4100.0
    [m]
    DC
    RRI
    4110.0
    [m]
    DC
    RRI
    4130.0
    [m]
    DC
    RRI
    4168.5
    [m]
    SWC
    STATO
    4171.5
    [m]
    SWC
    STATO
    4186.8
    [m]
    C
    STATO
    4190.9
    [m]
    C
    STATO
    4199.8
    [m]
    C
    STATO
    4201.5
    [m]
    C
    STATO
    4215.9
    [m]
    C
    STATO
    4259.0
    [m]
    SWC
    STATO
    4295.5
    [m]
    SWC
    STATO
    4296.0
    [m]
    SWC
    STATO
    4301.0
    [m]
    SWC
    STATO
    4332.0
    [m]
    SWC
    STATO
    4344.0
    [m]
    DC
    RRI
    4344.0
    [m]
    SWC
    STATO
    4350.0
    [m]
    DC
    RRI

  • Thin sections at the Norwegian Offshore Directorate
    Thin sections at the Norwegian Offshore Directorate
    Depth
    Unit
    3144.48
    [m ]
    3145.84
    [m ]
    3148.68
    [m ]
    3149.49
    [m ]
    3152.64
    [m ]
    3159.16
    [m ]
    3423.50
    [m ]
    3937.00
    [m ]
    3937.25
    [m ]