LOMVI FM

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• General information

  General information

  Attribute	Value
  Lithostrat. unit The lithostratigraphic unit's official name.	LOMVI FM
  NPDID lithostrat. unit Norwegian Offshore Directorate's unique id for lithostratigraphic units.	96
  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.	HEGRE GP

• Level below

  Level below

  Lithostrat. unit

• Description

  Lomvi Formation
  
  Name

  From the bird (English: guillemot) of the same name.

  Well type section

  Norwegian well 33/12-5 (Mobil) from 3747m to 3867m, coord N 61°11'05.53", E 01°51'53.34" (Fig 3.2) .

  Well reference section

  Norwegian well 33/5-1 (Norsk Hydro) from 3220 m to 3298 m, coord N 61°44'46.10", E 01°34'47.40" (Fig 3.3) .

  Thickness

  120 m in the type well, 78 m in the reference well.

  Lithology

  The Lomvi Formation consists of fine to coarse-grained kaolinitic sandstone with subordinate and thin red marls and claystones. The sandstones, which are light brown, grey or white, are generally more coarse-grained in the reference well than in the type well.

  Boundaries

  The lower boundary represents the transition from interbedded sandstones and marls to the coarse-grained sandstones of the Lomvi Formation. The upper boundary, in the Statfjord Field area, is chosen at the base of the first thick argillaceous unit belonging to the Lunde Formation . Gamma ray log patterns are more regular in the Lomvi Formation than in the overlying and underlying formations.

  Distribution

  The Lomvi Formation is present in all deep wells between the Brent Field and the southern edge of the Møre Basin.

  Age

  Triassic; no more precise dating available.

  Depositional environment

  The Lomvi Formation most probably consists of fluvial deposits.

  Source

  • Vollset, J. and Doré, A. G. (eds.) 1984: A revised Triassic and Jurassic lithostratigraphic nomenclature for the Norwegian North Sea. NPD-Bulletin No. 3, 53 pp.

• Wellbores penetrating

  Wellbores penetrating

  Wellbore name	Wellbore completion date	Top depth [m]	Bottom depth [m]
  30/5-3 S	12.04.2009	4113	4222
  33/5-1	18.10.1979	3220	3298
  33/12-2	23.08.1974	4048	4354
  33/12-5	21.02.1976	3747	3867
  34/4-1	16.12.1979	2834	2894
  34/4-4	03.02.1983	3143	3228
  34/4-6	27.03.1986	3153	3231
  34/7-6	30.05.1985	3539	3632
  34/8-4 S	09.06.1991	3947	4150
  34/8-16 S	15.11.2015	3437	3610
  6201/11-1	06.11.1987	3532	3628

• Wellbores with cores

  Wellbores with cores

  Wellbore name	Wellbore completion date	Core length [m]
  30/5-3 S	12.04.2009	29
  34/7-6	30.05.1985	19
  34/8-4 S	09.06.1991	28
  34/8-16 S	15.11.2015	54