31/3-1
Exploration · Appraisal · P&A · Gas · Den norske stats oljeselskap a.s · Troll · PL 085
The lithostratigraphic units 31/3-1 drilled through, shallowest first, with the depth each was met and where it ended. Groups are in bold; the formations within them are indented.
Formation tops
LITHOSTRATIGRAPHY · METRES ALONG THE WELLBORE
| Unit | Level | Part of | Top, m | Base, m |
|---|---|---|---|---|
| Nordland Gp | Group | — | 357 | 531 |
| Hordaland Gp | Group | — | 531 | 931 |
| Rogaland Gp | Group | — | 931 | 1,235 |
| Balder Fm | Formation | Rogaland Gp | 931 | 1,038 |
| Sele Fm | Formation | Rogaland Gp | 1,038 | 1,136 |
| Lista Fm | Formation | Rogaland Gp | 1,136 | 1,225 |
| Våle Fm | Formation | Rogaland Gp | 1,225 | 1,235 |
| Shetland Gp | Group | — | 1,235 | 1,273 |
| Cromer Knoll Gp | Group | — | 1,273 | 1,320 |
| Rødby Fm | Formation | Cromer Knoll Gp | 1,273 | 1,320 |
| Viking Gp | Group | — | 1,320 | 1,796 |
| Draupne Fm | Formation | Viking Gp | 1,320 | 1,351.5 |
| Sognefjord Fm | Formation | Viking Gp | 1,351.5 | 1,497 |
| Heather Fm | Formation | Viking Gp | 1,497 | 1,516 |
| Fensfjord Fm | Formation | Viking Gp | 1,516 | 1,668 |
| Krossfjord Fm | Formation | Viking Gp | 1,668 | 1,779 |
| Heather Fm | Formation | Viking Gp | 1,779 | 1,796 |
| Brent Gp | Group | — | 1,796 | 1,844 |
| Dunlin Gp | Group | — | 1,844 | 2,105 |
| Drake Fm | Formation | Dunlin Gp | 1,844 | 1,945 |
| Cook Fm | Formation | Dunlin Gp | 1,945 | 1,992 |
| Amundsen Fm | Formation | Dunlin Gp | 1,992 | 2,001 |
| Johansen Fm | Formation | Dunlin Gp | 2,001 | 2,088 |
| Amundsen Fm | Formation | Dunlin Gp | 2,088 | 2,105 |
| Statfjord Gp | Group | — | 2,105 | 2,160 |
| Hegre Gp | Group | — | 2,160 | 2,374 |
Core cut in each unit
METRES CORED · AS THE DIRECTORATE FILES IT
- Viking Gp240
- Sognefjord Fm138.9
- Fensfjord Fm81.7
- Heather Fm18.9
- Draupne Fm0.5
Biostratigraphy reports and logs behind the picks
- Composite logpdf · 496 KB
- WDSS completion logpdf · 251 KB
- Completion Report and Completion logpdf · 30.2 MB
- Biostratigrafisk analysepdf · 7.7 MB
- Biostratigraphy by IKUpdf · 7.2 MB
- Core gamma surface logpdf · 347 KB
- Palynofacies and stratigraphypdf · 39.9 MB
- Petrophysical evaluationpdf · 1.4 MB
- Petrophysical evaluation encl 01pdf · 409 KB
- Petrophysical evaluation encl 02pdf · 2.2 MB
About this data
Norwegian Offshore Directorate (Sodir) FactPages, mirrored nightly and used under the Norwegian Licence for Open Government Data (NLOD). Tops are the Directorate's lithostratigraphy for the wellbore, in metres along the wellbore from the kelly bushing. A unit filed as No Formal Name or No Group Defined is the Directorate's placeholder where nothing is named.
Developers: this page as JSON is GET /v1/data/norway/wells/20, documented in the API reference.