NORWAY · LITHOSTRATIGRAPHY · FORMATION
Johansen Fm
Part of the Dunlin Gp
Johansen Fm is a formation of the Dunlin Gp on the Norwegian shelf. 41 wellbores have a top filed in it, at a median of 2,702 m along the wellbore, and 3 were cored in it for 103.8 m of core.
- 41
- wellbores with a top
- 2,702
- m median top · 2,042 to 3,794 for the middle 80%
- 3
- wellbores cored in it
- 103.8
- m of core
SODIR FACTPAGES · DEPTHS ALONG THE WELLBORE · NORTH SEA 41
Every wellbore with a top in Johansen Fm →Cores from wellbores cored in Johansen Fm →
Most core
3 WELLBORES · BY METRES CORED IN THE UNIT
| Wellbore | Core here, m | Operator | Entered | Core samples available |
|---|---|---|---|---|
| 31/5-7 | 69.2 | Northern Lights JV DA | Dec 2, 2019 | Yes |
| 31/2-3 | 17.9 | A/S Norske Shell | Mar 28, 1980 | Yes |
| 31/4-3 | 16.7 | Norsk Hydro Produksjon AS | Dec 24, 1979 | Yes |
View all 3 wellbores cored in Johansen Fm, core by core →On the map →
Latest wellbores to meet it
BY ENTRY DATE
Description
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
Name Named after Hjalmar Johansen, member of the Amundsen South Pole expedition.
Well type section Norwegian well 31/2-1 (Shell) from 2176 m to 2272.5 m, coord N 60°46'19.16'', E 03°33'15.87" (Fig 3.13).
Well reference section None at present.
Thickness 95.5 m in the type well.
Lithology In the type well the formation consists of a sequence of sandstones with thin calcite cemented streaks throughout. The lower part is medium to fine-grained, micaceous, well sorted sandstone which grades downwards into light grey silty micaceous claystone. The main section of the formation is composed of medium grained, friable sandstones, with well sorted quartz grains which are angular to subrounded. The uppermost part is composed of medium to fine grained, micaceous sandstones, which are moderately sorted, silty and argillaceous.
Boundaries In the type well area the Johansen Formation splits the <font col
This unit on Sodir FactPages →
About this data
Norwegian Offshore Directorate (Sodir) FactPages, mirrored nightly and used under the Norwegian Licence for Open Government Data (NLOD). Tops and cored lengths are the Directorate's, per wellbore and unit; the percentiles are computed from those tops and are depths along the wellbore, not true vertical depth.
Developers: this page as JSON is GET /v1/data/norway/formations/johansen-fm, documented in the API reference.