The lithostratigraphic units 25/10-16 B 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 | — | 171.5 | 1,417.5 |
| Utsira Fm | Formation | Nordland Gp | 706.5 | 905 |
| Skade Fm | Formation | Hordaland Gp | 905 | 1,417.5 |
| Hordaland Gp | Group | — | 1,417.5 | 2,472 |
| Grid Fm | Formation | Hordaland Gp | 2,221 | 2,472 |
| Hordaland Gp | Group | — | 2,472 | 3,091 |
| Rogaland Gp | Group | — | 3,091 | 4,212 |
| Balder Fm | Formation | Rogaland Gp | 3,091 | 3,321 |
| Sele Fm | Formation | Rogaland Gp | 3,321 | 3,568.5 |
| Lista Fm | Formation | Rogaland Gp | 3,568.5 | 3,771 |
| Heimdal Fm | Formation | Rogaland Gp | 3,771 | 3,927 |
| Lista Fm | Formation | Rogaland Gp | 3,927 | 4,049.5 |
| Våle Fm | Formation | Rogaland Gp | 4,049.5 | 4,212 |
| Shetland Gp | Group | — | 4,212 | 4,484.5 |
| Ekofisk Fm | Formation | Shetland Gp | 4,212 | 4,409.5 |
| Tor Fm | Formation | Shetland Gp | 4,409.5 | 4,484.5 |
| Viking Gp | Group | — | 4,484.5 | 4,820.5 |
| Draupne Fm | Formation | Viking Gp | 4,484.5 | 4,819 |
| Heather Fm | Formation | Viking Gp | 4,819 | 4,820.5 |
| Vestland Gp | Group | — | 4,820.5 | 4,831.5 |
| Hugin Fm | Formation | Vestland Gp | 4,820.5 | 4,831.5 |
| Hegre Gp | Group | — | 4,831.5 | 4,893 |
| Skagerrak Fm | Formation | Hegre Gp | 4,831.5 | 4,893 |
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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