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Factpages Norwegian Offshore Directorate
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11.12.2024 - 01:27
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KUPFERSCHIEFER FM

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  • General information

    General information
    Attribute Value
    Lithostrat. unit
    The lithostratigraphic unit's official name.
    KUPFERSCHIEFER FM
    NPDID lithostrat. unit
    Norwegian Offshore Directorate's unique id for lithostratigraphic units.
    88
    Level
    Indicates the lithostratigraphic unit's level. Legal values: GROUP, FORMATION, MEMBER.
    FORMATION
    Lithostrat. unit, parent
    The parent lithostratigraphic unit's official name. See also level. Will be empty if Level = GROUP.
  • Level below

    Level below
    Lithostrat. unit
  • Description

    Kupferschiefer Formation

    Name
    An old German mining term meaning “Copper Shale”.
    Well type section
    UK well 49/26-4 (Shell/Esso) (see Rhys, 1974) from 2012 to 2013 m.
    Well reference section
    The formation is illustrated in the following wells which may be considered as reference sections. UK wells 30/16-1 (Shell/Esso) (Fig 1.5-8) . 21/11-1 (Shell/Esso) (Fig 1.5-8) and 15/26-1 (BP) (Fig 1.9-11) . Norwegian wells 7/3-1 (Amoco/Noco) (Fig 1.5-8) . and 17/4-1 (Petronord) (Fig 1.9-11) .
    Thickness
    1 m in the type well. In the reference wells it is 1 to 2 m thick and appears to be of the same order of thickness throughout the North Sea Basin. Although typically about 1 m or less in thickness, it can be overlain by additional shale to reach a combined thickness of 10 m; it then loses its sharp spike.
    Lithology
    Thin, grey-black, radioactive, locally calcareous organic-rich shale. In the type well it is a dark brown to black dolomitic shale. In the reference wells it is dark grey to black, carbonaceous and micaceous shale, usually laminated and fissile.
    Boundaries
    The formation is easily distinguished on wireline logs by a very high gamma ray response and low acoustic velocities. Since it normally occurs between the arenaceous sediments of the Rotliegend Group and the carbonates and evaporites of the Zechstein Group it forms a distinctive marker horizon.
    Distribution
    Despite the fact that the formation is very thin it is widely distributed over the Southern and Central North Sea. The Kupferschiefer Formation can be very thin or even absent over local highs and in marginal areas of local paleorelief. It is present on land in the UK and northern Europe.
    Age
    Late Permian.
    Depositional environment
    Marine, anoxic basinal environment.
    Compiled from:
    • Deegan, C. E. and Scull, B. J. (compilers) 1977: A standard lithostratigraphic nomenclature for the Central and Northern North Sea. UK Institute of Geological Sciences, Report 77/25. The Norwegian Petroleum Directorate, NPD-Bulletin No. 1, 36 pp.
    • Glennie, K. W., Higham, J. and Stemmerik, L. Permian. 91 – 103 in: Evans, D., Graham, C., Armour, A. and Bathurst, P. (editors and coordinators) 2003: The Millennium Atlas: petroleum geology of the central and northern North Sea. The Geological Society of London, 389 pp.
  • Wellbores penetrating

    Wellbores penetrating
    Wellbore name
    Wellbore completion date
    Top depth [m]
    Bottom depth [m]
    06.03.1985
    5083
    5084
    29.02.1992
    4518
    4520
    18.01.2019
    3678
    3680
    28.06.1978
    3100
    3103
    27.05.2019
    3785
    3790
    29.12.2010
    4019
    4021
    10.03.1986
    4043
    4045
    10.06.1969
    4402
    4406
    06.10.2010
    5397
    5398
    14.07.1981
    3011
    3014
    24.08.1982
    3065
    3068
    07.08.1976
    2800
    2808
    27.09.1982
    3227
    3230
    01.09.2011
    2239
    2244
    07.03.2013
    1966
    1967
    08.11.2013
    1998
    2000
    01.04.2014
    2066
    2069
    16.03.2014
    2058
    2060
    18.11.1984
    2619
    2621
    30.03.1982
    3112
    3117
    27.07.1982
    2857
    2859
    26.08.1968
    3829
    3834
    23.10.2021
    2836
    2838
    08.07.1972
    3007
    3014
    13.06.1981
    2361
    2363
  • Wellbores with cores

    Wellbores with cores
    Wellbore name
    Wellbore completion date
    Core length [m]
    08.07.1972
    7