NORWAY · LITHOSTRATIGRAPHY · FORMATION
Tettegras Fm
Part of the Billefjorden Gp
Tettegras Fm is a formation of the Billefjorden Gp on the Norwegian shelf. 3 wellbores have a top filed in it, at a median of 2,202 m along the wellbore, and 1 was cored in it for 27.4 m of core.
- 3
- wellbores with a top
- 2,202
- m median top · 2,087 to 2,665 for the middle 80%
- 1
- wellbores cored in it
- 27.4
- m of core
SODIR FACTPAGES · DEPTHS ALONG THE WELLBORE · BARENTS SEA 3
Every wellbore with a top in Tettegras Fm →Cores from wellbores cored in Tettegras Fm →
Most core
1 WELLBORES · BY METRES CORED IN THE UNIT
| Wellbore | Core here, m | Operator | Entered | Core samples available |
|---|---|---|---|---|
| 7128/6-1 | 27.4 | Conoco Norway Inc. | Aug 11, 1991 | Yes |
View all 1 wellbores cored in Tettegras Fm, core by core →On the map →
Latest wellbores to meet it
BY ENTRY DATE
| Wellbore | Top, m | Base, m | Operator | Field | Entered |
|---|---|---|---|---|---|
| 7130/4-1 | 2,781 | 2,996 | Lundin Norway AS | — | Nov 22, 2015 |
| 7128/4-1 | 2,058 | 2,350.5 | Den norske stats oljeselskap a.s | — | Dec 17, 1993 |
| 7128/6-1 | 2,202 | 2,358 | Conoco Norway Inc. | — | Aug 11, 1991 |
Description
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
Name From the Norwegian name for the plant Butterwort (Pinguícula vulgáris).
Definition The type section is defined as the interval from 2358 m to 2202 m in well 7128/6-1 (Fig 9.9). Table 9.1) and corresponds to the “Viséan coaly/shaly unit” of Ehrenberg et al. (1998a) in this well. One core, 27.4 m long, exists from the upper part of the formation (Fig 9.16). The transition from the Soldogg Formation into the basal beds of the Tettegras Formation is defined by higher GR readings and overall a more rapidly changing GR curve, reflecting the transition from sandstones with rare siltstone and coal beds into rhythmically deposited sandstones, siltstones, claystones and coal.
Reference sections Reference sections are defined as the intervals from 2350.5 m to 2058 m in well <a href="javascript:void(window.open('https://factpages.sodir.no/factpages/Defaul
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/tettegras-fm, documented in the API reference.