Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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23.12.2024 - 01:26
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ALGE MBR

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  • General information
    General information
    Attribute Value
    Lithostrat. unit
    The lithostratigraphic unit's official name.
    ALGE MBR
    NPDID lithostrat. unit
    Norwegian Offshore Directorate's unique id for lithostratigraphic units.
    202
    Level
    Indicates the lithostratigraphic unit's level. Legal values: GROUP, FORMATION, MEMBER.
    MEMBER
    Lithostrat. unit, parent
    The parent lithostratigraphic unit's official name. See also level. Will be empty if Level = GROUP.

  • Description
    Alge Member

     Name
    Norwegian for “alga”.
    Well type section
    Norwegian well 7119/12-1 coordinates N 71°6'08.00'' E 19°47'40.29''.
    Reference well section
    Norwegian well 7120/12-1 coordinates N 71°6'48.71'' E 20°45'20.13''.
    Thickness
    35 m in the type well and 50 m in the reference well.
    Lithology
    The Alge Member forms the lower high gamma intensity part of the Hekkingen Formation and consists of black paper shales rich in organic material.
    Lower boundary definition
    The base is defined by the transition from carbonate cemented and pyritic mudstones to poorly consolidated shales, producing a sudden increase in interval transit time and an abrupt decrease in bulk density values.
    Age
    Late Oxfordian – Kimmeridgian, based on ammonites and palynology.
    Depositional environment
    The member was deposited in restricted shelf environments.
    Compiled from
    • Dalland, A., Worsley, D. and Ofstad, K. (eds.) 1988: A lithostratigraphic scheme for the Mesozoic and Cenozoic succession offshore mid- and northern Norway. NPD-Bulletin No. 4, 65 pp.
    • Dallmann, W. K. (ed.) 1999: Lithostratigraphic lexicon of Svalbard. Review and recommendations for nomenclature use. Upper Palaeozoic to Quaternary Bedrock. Norwegian Polar Institute, 318 pp.

  • Wellbores penetrating
    Wellbores penetrating
    Wellbore name
    Wellbore completion date
    Top depth [m]
    Bottom depth [m]
    10.10.1980
    2574
    2610
    10.12.2007
    2221
    2250
    12.10.1980
    1969
    2019
    07.03.2007
    864
    869

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