Factpages Norwegian Offshore Directorate
Factpages Norwegian Offshore Directorate
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10.12.2024 - 01:27
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KOLJE FM

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  • General information

    General information
    Attribute Value
    Lithostrat. unit
    The lithostratigraphic unit's official name.
    KOLJE FM
    NPDID lithostrat. unit
    Norwegian Offshore Directorate's unique id for lithostratigraphic units.
    84
    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

    Kolje Formation

    Name
    From the fish species Melanogrammus aeglefinus (haddock). The formation corresponds to T4-2 and T4-3, the Tamsøy and Anda formations of earlier informal terminology.
    Well type section
    Well 7119/12-1 (Statoil), coordinates 71°06'08.00"N, 19°47'40.29"E, from 2441 m to 2004 m (Fig 4.52) .
    Well reference section
    Well 7120/12-1 (Norsk Hydro), coordinates 71°06'48.7"N, 20°45'20.1"E, from 1375 m to 1272 m (Fig .53) .
    Thickness
    437 m in the type well and 103 m in the reference well.
    Lithology
    Dark brown to dark grey shale and claystone dominate, with minor interbeds of pale limestone and dolomite. The upper part of the formation also has thin interbeds of light grey-brown siltstone and sandstone. The reference well displays similar lithologies.
    Basal Stratotype
    The base is marked by gradually decreasing gamma ray, decreasing interval transit time and increasing density log responses in the type well. However, in the central part of the Hammerfest Basin the density log response shows a decreasing trend at the formation base. A marker in the middle part of the formation (boundary between unit T4-2 and T4-3 of earlier informal terminology) shows an increase in density in parts of the Hammerfest Basin. An increasing gamma log response is associated with this log break westwards. The log breaks at the base and in the middle parts of the formation are thought to reflect condensed intervals providing important regional seismic markers.
    Lateral extent and variation
    The formation thickens westwards but thins towards the central part of the Hammerfest Basin. There are no marked regional variations in lithology.
    Age
    An early Barremian to late Barremian/early Aptian age is suggested.
    Depositional environment
    The formation was deposited in distal open marine conditions, with good water circulation, but also with periodic restricted environments.
    Correlation
    The formation is a lateral equivalent of the Helvetiafjellet Formation, a distinctive sand-dominated unit on the Svalbard Platform.
    Source
    • 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.
  • Wellbores penetrating

    Wellbores penetrating
    Wellbore name
    Wellbore completion date
    Top depth [m]
    Bottom depth [m]
    27.11.2020
    565
    635
    25.09.1984
    2550
    2648
    10.10.1980
    2004
    2441
    26.06.1981
    990
    1087
    12.09.1983
    2715
    2953
    17.02.2011
    1636
    1955
    28.03.1989
    1826
    1878
    23.03.1991
    1948
    2120
    09.07.2011
    1702
    1932
    06.06.1985
    2170
    2205
    02.05.1985
    1843
    2176
    22.07.2007
    1954
    2351
    30.11.2012
    1996
    2665
    08.10.1982
    1746
    2248
    21.08.1983
    1666
    1987
    09.06.1984
    2570
    2679
    10.09.1981
    1650
    1942
    29.07.1982
    1552
    1869
    24.05.1983
    1962
    2055
    10.12.2007
    1798
    2142
    26.09.1982
    1607
    1761
    20.10.1984
    1847
    1871
    08.09.1984
    1210
    1353
    05.09.1990
    1442
    1922
    12.10.1980
    1272
    1375
    11.09.1981
    1309
    1455
    05.05.1983
    1422
    1778
    03.01.2011
    1399
    1828
    02.03.2019
    2149
    2733
    27.10.1984
    1817
    2136
    14.04.1985
    1885
    2226
    28.09.1985
    1930
    2236
    06.07.1986
    1820
    2079
    09.03.2001
    1625
    1790
    05.08.1984
    1588
    1732
    12.08.1986
    1578
    1728
    15.07.2017
    1584
    1766
    29.11.2011
    1545
    1809
    11.11.1992
    1764
    1832
    13.01.1992
    1887
    2112
    11.11.1987
    1649
    1884
    19.09.2006
    1623
    1875
    10.10.2021
    1583
    1767
    08.01.2006
    865
    960
    25.11.2006
    865
    976
    23.12.2006
    961
    998
    13.01.2007
    961
    998
    14.05.2008
    1638
    1943
    21.04.2008
    1638
    1943
    20.10.1987
    1220
    1233
    12.10.2011
    1154
    1166
    30.12.1988
    1314
    1318
    07.03.2007
    733
    779
    01.12.2008
    812
    844
    08.01.2016
    335
    561
    26.12.1992
    2080
    2494
    30.09.2013
    2531
    2723
    02.07.2017
    1730
    2027
    28.02.2017
    1673
    1699
    30.11.2017
    1608
    1616
    17.01.2018
    1980
    2128
    25.02.2014
    2171
    2185
    08.07.2013
    1252
    1254
    26.10.2018
    1364
    1377
    24.01.2012
    1710
    1732
    05.05.2014
    1402
    1417
    14.03.2021
    1578
    1707
    02.05.2011
    1227
    1245
    16.10.2012
    1456
    1484
    17.07.2017
    564
    589
    28.08.2017
    564
    589
    07.10.2017
    502
    715
    22.03.2017
    2155
    2550
    01.10.2018
    860
    970
    22.10.1988
    1145
    1892
    03.09.1987
    852
    1352
    01.07.2020
    848
    870
    28.11.1988
    892
    986
    11.08.2018
    661
    797
    18.06.2014
    694
    737
    21.11.2018
    610
    752
    31.07.2019
    675
    702
    03.11.2013
    672
    688
    06.07.2014
    591
    610
    14.04.2016
    590
    607
    17.09.2013
    563
    580
    16.05.2015
    583
    602
    17.09.2017
    567
    587
    21.07.2014
    674
    761
    03.08.2017
    650
    680
  • Wellbores with cores

    Wellbores with cores
    Wellbore name
    Wellbore completion date
    Core length [m]
    11.11.1992
    25
    28.02.2017
    0