HEKKINGEN FM
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General information
General information Attribute Value Lithostrat. unit The lithostratigraphic unit's official name.HEKKINGEN FMNPDID lithostrat. unit Norwegian Offshore Directorate's unique id for lithostratigraphic units.63Level 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
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Description
Hekkingen Formation
NameThe formation name is taken from Hekkingen Lighthouse at 69°30'N and 17°40'E on the northern tip of Senja. The formation corresponds to T3-2 or Olderfjord Formation of earlier usage.Well type sectionWell 7120/12-1 (Norsk Hydro), coordinates 71°06'48.7"N, 20°45'20.1"E, from 2019 m to 1660 m (Fig 4.50) . Two short cores have been taken between 1661 and 1668 m and between 1702.6 and 1707.6 m.Well reference sectionWell 7119/12-1 (Statoil), coordinates 71°06'08.00"N, 19°47'40.29"E, from 2610 to 2497 m (Fig 4.51) .Thickness359 m in the type well and 113 m in the reference well.LithologyThe formation consists of brownish-grey to very dark grey shale and claystone with occasional thin interbeds of limestone, dolomite, siltstone and sandstone. These minor clastic components are most common towards basinal margins. Lower parts of the formation show especially high gamma ray readings. This is used to differentiate the lower Alge from the upper Krill Member in the formation (Fig 4.50, 4.51)Basal StratotypeThe 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.Lateral extent and variationThe formation is thickest in its type well. It thins northwards to less than 100 m towards the axis of the Hammerfest Basin. This pattern reflects the development of semigrabens along basin margins while doming was active along the basin axis.AgePalynomorphs suggest an age span of late Oxfordian/early Kimmeridgian to Ryazanian. There are local breaks in deposition at the base and top, probably most developed near the basinal axis.Depositional environmentMarine, deep water with anoxic conditions resulted from the formation of local barriers to circulation by Kimmerian movements.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 27.11.202069873403.12.20002345237725.09.19842702271910.10.19802498261026.06.19811163132212.09.19833026310717.02.20112058223828.03.19891984198628.03.19892138215823.03.19912503265609.07.20112000201806.06.19852248227102.05.19852285236722.07.20072470255030.11.20122811289308.10.19822248239021.08.19832017214109.06.19842759286310.09.19811990208629.07.19821955207824.05.19832104218710.12.20072179225026.09.19821813184020.10.19841906196508.09.19841394153305.09.19902303250012.10.19801660201911.09.19811700187505.05.19831946214203.01.20111963215302.03.20193061328527.10.19842237230714.04.19852338245028.09.19852292235706.07.19862260230509.03.20011832188005.08.19841793184812.08.19861806188015.07.20171822190929.11.20112081231811.11.19921955202513.01.19922225229711.11.19871931201519.09.20061936204810.10.20211834189105.10.20001022108819.10.20011021106708.01.20061018107325.11.20061075116223.12.20061083116813.01.20071080116804.01.20131046111026.12.20181109115701.03.20231634171728.09.201754461614.05.20082001209121.04.20082005209520.10.19871233128512.10.20111209125230.12.19881344139907.03.200781786901.12.200889193007.09.2014983103308.01.201657560113.05.200583987809.02.201966268707.04.201971674226.12.19923472432830.09.20132789279825.02.19881893191902.07.20172230239619.01.20171499150117.01.20182169220224.03.20121296131208.07.20131391146416.10.20121484149904.03.201665766921.08.200890697419.06.198879286125.09.201167069507.08.201367470219.07.200875486411.04.19881147119410.11.20141473153724.03.20061091114222.02.20061091114226.04.201288192820.12.19891168123602.02.20011314134710.02.20011314134708.01.20011314134807.05.19901030106915.12.19931212126719.07.202168270807.10.201779389322.03.20172864338001.10.20181120127022.10.19881918196503.09.19871383142701.07.20201558161028.11.19881317136728.05.202165167918.06.201475575721.11.201877978431.07.201971474603.11.201369773306.07.201463066614.04.201663569117.09.201359062116.05.201561363217.09.201759662607.08.201467167521.07.201477677903.08.201769273215.06.201949654301.09.2017498539 -
Wellbores with cores
Wellbores with cores 23.03.19911009.07.20111512.10.19801330.12.1988826.12.1992711.04.1988107.05.1990828.11.19882