The lithostratigraphic units 17/12-4 A 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 | — | 128.1 | 486 |
| Hordaland Gp | Group | — | 486 | 743.7 |
| Rogaland Gp | Group | — | 743.7 | 780 |
| Balder Fm | Formation | Rogaland Gp | 743.7 | 773 |
| Våle Fm | Formation | Rogaland Gp | 773 | 780 |
| Shetland Gp | Group | — | 780 | 1,216 |
| Ekofisk Fm | Formation | Shetland Gp | 780 | 799 |
| Tor Fm | Formation | Shetland Gp | 799 | 984 |
| Hod Fm | Formation | Shetland Gp | 984 | 1,208 |
| Blodøks Fm | Formation | Shetland Gp | 1,208 | 1,216 |
| Cromer Knoll Gp | Group | — | 1,216 | 2,142 |
| Rødby Fm | Formation | Cromer Knoll Gp | 1,216 | 1,337.2 |
| Åsgard Fm | Formation | Cromer Knoll Gp | 1,337.2 | 2,142 |
| Boknfjord Gp | Group | — | 2,142 | 2,606 |
| Flekkefjord Fm | Formation | Boknfjord Gp | 2,142 | 2,175.3 |
| Sauda Fm | Formation | Boknfjord Gp | 2,175.3 | 2,358 |
| Tau Fm | Formation | Boknfjord Gp | 2,358 | 2,438 |
| Egersund Fm | Formation | Boknfjord Gp | 2,438 | 2,606 |
| Vestland Gp | Group | — | 2,606 | 3,338 |
| Bryne Fm | Formation | Vestland Gp | 2,667 | 3,338 |
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.
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