NORWAY · WELLBORES · NPDID 398
31/2-1
Exploration · Wildcat · Suspended · Oil/gas · A/S Norske Shell · Troll · PL 054
The lithostratigraphic units 31/2-1 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 | — | 348 | 525 |
| Hordaland Gp | Group | — | 525 | 1,184 |
| Rogaland Gp | Group | — | 1,184 | 1,405 |
| Balder Fm | Formation | Rogaland Gp | 1,184 | 1,250 |
| Sele Fm | Formation | Rogaland Gp | 1,250 | 1,322 |
| Lista Fm | Formation | Rogaland Gp | 1,322 | 1,393 |
| Våle Fm | Formation | Rogaland Gp | 1,393 | 1,405 |
| Cromer Knoll Gp | Group | — | 1,405 | 1,414 |
| Viking Gp | Group | — | 1,414 | 1,881 |
| Draupne Fm | Formation | Viking Gp | 1,414 | 1,440 |
| Sognefjord Fm | Formation | Viking Gp | 1,440 | 1,531.5 |
| Heather Fm | Formation | Viking Gp | 1,531.5 | 1,594.5 |
| Fensfjord Fm | Formation | Viking Gp | 1,594.5 | 1,741.5 |
| Krossfjord Fm | Formation | Viking Gp | 1,741.5 | 1,880 |
| Heather Fm | Formation | Viking Gp | 1,880 | 1,881 |
| Brent Gp | Group | — | 1,881 | 1,985 |
| Dunlin Gp | Group | — | 1,985 | 2,292.5 |
| Drake Fm | Formation | Dunlin Gp | 1,985 | 2,093 |
| Cook Fm | Formation | Dunlin Gp | 2,093 | 2,134 |
| Amundsen Fm | Formation | Dunlin Gp | 2,134 | 2,176 |
| Johansen Fm | Formation | Dunlin Gp | 2,176 | 2,272.5 |
| Amundsen Fm | Formation | Dunlin Gp | 2,272.5 | 2,292.5 |
| Statfjord Gp | Group | — | 2,292.5 | 2,381 |
| Hegre Gp | Group | — | 2,381 | 2,433 |
Core cut in each unit
METRES CORED · AS THE DIRECTORATE FILES IT
- Viking Gp183.6
- Fensfjord Fm67.1
- Heather Fm61.5
- Sognefjord Fm55
Biostratigraphy reports and logs behind the picks
- Composite logpdf · 354 KB
- WDSS completion logpdf · 173 KB
- Completion report and logpdf · 15.7 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/398, documented in the API reference.