KOLMULE FM
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General information
General information Attribute Value Lithostrat. unit The lithostratigraphic unit's official name.KOLMULE FMNPDID lithostrat. unit Norwegian Offshore Directorate's unique id for lithostratigraphic units.85Level Indicates the lithostratigraphic unit's level. Legal values: GROUP, FORMATION, MEMBER.FORMATIONLithostrat. 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
Kolmule Formation
NameFrom the fish species Micromesistius poutassou (blue whiting). The formation corresponds to T4-4 (Torsvåg Formation) of earlier informal terminilogy.Type wellWell 7119/12-1 (Statoil), coordinates 71°06'08.00"N, 19°47'40.29"E, from 2004 m to 1059 m (Fig 4.54) .Reference wellWell 7120/12-1 (Norsk Hydro), coordinates 71°06'48.7"N, 20°45'20.1"E, from 1272 m to 742 m (Fig 4.53) .Thickness945 m in the type well and 530 m in the reference well.LithologyDark grey to green claystone and shale, silty in parts with minor thin siltstone interbeds and limestone and dolomite stringers. Traces of glauconite and pyrite occur. The reference well has the same lithology.Basal StratotypeIn the type well the base is defined by sharply increasing interval transit time and neutron porosity readings and a slight decrease in gamma log response. The reference well shows a similar sonic and neutron log trend, although with a gradually increasing gamma ray log response.Lateral extent and variationThe formation thickens towards and into the Tromsø Basin and shows a slight increase in thickness eastwards in the Hammerfest Basin. Lithologies are laterally continuous.AgeAptian to mid-Cenomanian.Depositional environmentOpen marine environments are indicated.CorrelationThe lower parts of the formation correlate to the prodeltaic to open shelf deposits of the Carolinefjellet Formation on the Svalbard Platform. The base of the unit marks a regionally significant transgressive pulse; its top is eroded by the Cretaceous uplift of northern shelf margins. The youngest beds preserved onland Svalbard are of Albian age.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.
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Wellbores penetrating
Wellbores penetrating 27.11.202041656503.12.20001215212716.07.19821875320009.09.19831393500011.09.19832815307525.09.19841585255010.10.19801058200426.06.198145299012.09.19831456271517.02.20111116163628.03.19891585158628.03.19891591182623.03.19911450194809.07.20111441170206.06.19851230217002.05.19851117184322.07.20071176195430.11.20121289197008.10.19821170174621.08.19831092166609.06.19841496257010.09.19811150165029.07.1982961155224.05.19831200196210.12.20071279179826.09.1982984160720.10.19841097184708.09.1984694121005.09.1990703144212.10.1980742127211.09.1981745130905.05.1983864142203.01.2011826139902.03.20192072214927.10.19841052181714.04.19851112188528.09.19851036193006.07.1986977182009.03.2001865162505.08.1984931158812.08.1986923157815.07.2017873158429.11.2011910154511.11.1992764176413.01.1992910188711.11.1987916164919.09.2006852162310.10.2021852158305.10.200063598419.10.200163898608.01.200665086525.11.200662986523.12.200665596113.01.200765596104.01.201364598026.12.2018676105014.05.2008860163821.04.2008860163820.10.1987618122012.10.2011600115430.12.1988617131407.03.200753869907.03.200770273301.12.200855381207.09.201455788013.05.200543082409.02.201934565407.04.201934570710.04.20141893300010.04.20131559254226.12.19921545208030.09.20131753253125.02.19881468183602.07.20171323173002.02.20211974201530.11.20171602160807.11.20171548155317.01.20181832198010.10.201465582825.02.20141294217124.03.20121035123808.07.2013988125226.10.20181009136424.01.20121316171016.12.2013980111905.05.20141180140214.03.20211219157802.05.20111014122707.06.202289092716.10.20121272145617.10.201455658003.05.201558762314.06.201558762302.09.201557560129.09.201557560110.10.201657560108.10.201857860801.12.202049450414.01.200946750121.08.200841989019.06.198840176225.09.201141663607.08.201347863919.07.200845472711.04.1988374114110.11.2014558147324.03.2006262109122.02.2006262109126.04.201241684320.12.1989373111002.02.2001334130010.02.2001334130008.01.2001334130007.05.1990308103015.12.1993379120022.03.2017562215522.09.20141385154001.10.201853486022.10.1988526114503.09.198754685201.07.202052884828.11.198855889228.05.202154864311.08.201854066118.06.201454469421.11.201853261031.07.201953467503.11.201349067206.07.201450659114.04.201651059017.09.201350056316.05.201548958317.09.201750156707.08.201451254519.08.198948055321.07.201452967403.08.201752365015.06.2019275491 -
Wellbores with cores