Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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11.12.2024 - 01:27
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MAUREEN FM

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  • General information

    General information
    Attribute Value
    Lithostrat. unit
    The lithostratigraphic unit's official name.
    MAUREEN FM
    NPDID lithostrat. unit
    Norwegian Offshore Directorate's unique id for lithostratigraphic units.
    102
    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

    Maureen Formation

    Name
    Named by Deegan & Scull (1977) from the Maureen Field in UK block 16/29.
    Well type section
    UK well 21/10-1 from 2524 m to 2464 m, coordinates N 57°43'50.37", E 00°58'29.19" (Fig 5.44) . No cores.
    Well reference sections
    UK well 16/29-4 from 2796 m to 2679 m, coordinates N 58°05'20.90", E 01°39'15.10" (Fig 5.45) . No cores.
    Norwegian well
    7/11-1 from 3173 m to 3069 m, coordinates N 57°04'15.60", E 02°26'24.40" (Fig 5.46) . No cores.
    Thickness
    The Maureen Formation is thickest in the Witch Ground Graben in the UK sector of the central North Sea where it consists of as much as 400 m of mainly sandstones. It thins westwards and southwards, and is poorly developed in Norwegian waters, the maximum thickness in a well is found 7/11-1 where there are 104 m of sandstones and carbonates.
    Lithology
    The Maureen Formation consists of sandstones that are slightly to very calcareous and often contain reworked limestones. The sandstones are interbedded with brown and dark grey shales, and are fine to medium grained, locally very coarse.
    The type well established by Deegan & Scull (1977) represents a distal and somewhat atypical section. A more representative well from the Maureen Formation sandstones is UK well 16/29-4
    (Fig 5.45) .
    The formation pinches out distally and is replaced by the light grey marls and shales of the
    Våle Formation .
    Basal stratotype
    The Maureen Formation rests on the Shetland Group .
    Characteristics of the upper boundary
    The upper boundary is defined by the change from sandstones containing reworked limestone fragments and limestone beds, to the shales of the Lista Formation . The boundary is characterised by an upward increasing gamma-ray response (Fig 5.45) . and an overall decreasing velocity. Where the Andrew Formation rests on the Maureen Formation the transition is seen as an increase in gamma-ray readings and decrease in velocity (Fig 5.44) .
    Distribution
    The coarse detrital facies of the Maureen Formation is developed in the central North Sea, in what is in general a lobe-shaped deposit trending from the East Shetland Platform southeast along the Central Trough. The formation thins towards the east and west, and grades into the Våle Formation . The Maureen Formation is not well developed in the Norwegian sector. Its approximate distribution on the Norwegian continental shelf is shown in (Fig 5.47) .
    Age
    Early Paleocene.
    Depositional environment
    The Maureen Formation was deposited in an open marine environment dominated by sand influx from the northwest, together with local erosion of Danian and Cretaceous rocks.
    Source
    • Isaksen, D. and Tonstad, K. (eds.) 1989: A revised Cretaceous and Tertiary lithostratigraphic nomenclature for the Norwegian North Sea. NPD-Bulletin No. 5, 59 pp.
  • Wellbores penetrating

    Wellbores penetrating
    Wellbore name
    Wellbore completion date
    Top depth [m]
    Bottom depth [m]
    04.06.1989
    3335
    3407
    02.02.2006
    3368
    3418
    22.07.2010
    3449
    3473
    15.04.1974
    3033
    3069
    30.09.1978
    3021
    3081
    26.02.1978
    2692
    2744
    03.07.1982
    2781
    2815
    11.05.1983
    2947
    2965
    07.06.1988
    2777
    2826
    24.07.1984
    2613
    2719
    05.11.1988
    3090
    3107
    30.07.1970
    2932
    2950
    27.04.1989
    3021
    3046
    07.12.1972
    3066
    3092
    06.09.1986
    3056
    3075
    20.06.1981
    2545
    2558
    31.08.1981
    2775
    2812
    23.01.1990
    2819
    2848
    03.03.2013
    3302
    3353
    28.04.2013
    2945
    2969
    05.02.1969
    2602
    2669
    12.12.1983
    2831
    2858
    20.02.1985
    3099
    3125
    15.06.1968
    3069
    3173
    14.10.1968
    3175
    3220
    07.02.1969
    3286
    3333
    31.07.1969
    3167
    3183
    10.06.1982
    3104
    3231
    20.10.1982
    3151
    3225
    25.12.1983
    3377
    3390
    08.10.1984
    3377
    3390
    09.03.1986
    3094
    3162
    10.09.1990
    3271
    3440
    10.06.2007
    3253
    3408
    03.06.1977
    2730
    2791
    06.09.1977
    2762
    2826
    12.12.1977
    2704
    2737
    07.06.1981
    2866
    2912
    26.07.1988
    2791
    2858
    23.12.1988
    2929
    2940
    25.07.1977
    1585
    1605
    09.12.2005
    619
    624
    07.01.1982
    2727
    2825
    29.04.1981
    2703
    2779
    14.07.1981
    2392
    2425
    27.02.1982
    2625
    2723
    06.09.1975
    2634
    2643
    04.05.1986
    2418
    2439
    19.05.1997
    2813
    2825
    31.03.2006
    2435
    2447
    30.03.1982
    2423
    2435
    09.10.1973
    987
    991
    29.01.1983
    2270
    2281
    19.07.1985
    2157
    2161
    21.04.1987
    2302
    2317
  • Wellbores with cores

    Wellbores with cores
    Wellbore name
    Wellbore completion date
    Core length [m]
    30.09.1978
    27
    06.09.1975
    9