The lithostratigraphic units 34/5-1 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 | — | 412 | 1,450 |
| Utsira Fm | Formation | Nordland Gp | 1,333 | 1,435 |
| No Formal Name | Formation | — | 1,435 | 1,450 |
| Hordaland Gp | Group | — | 1,450 | 1,890 |
| No Formal Name | Formation | — | 1,561 | 1,568 |
| No Formal Name | Formation | — | 1,568 | 1,890 |
| Rogaland Gp | Group | — | 1,890 | 2,010 |
| Balder Fm | Formation | Rogaland Gp | 1,890 | 1,922 |
| Lista Fm | Formation | Rogaland Gp | 1,922 | 2,010 |
| Shetland Gp | Group | — | 2,010 | 4,070 |
| Jorsalfare Fm | Formation | Shetland Gp | 2,010 | 2,241 |
| Kyrre Fm | Formation | Shetland Gp | 2,241 | 3,802 |
| Tryggvason Fm | Formation | Shetland Gp | 3,802 | 4,070 |
| Cromer Knoll Gp | Group | — | 4,070 | 4,082 |
| Mime Fm | Formation | Cromer Knoll Gp | 4,070 | 4,082 |
| Viking Gp | Group | — | 4,082 | 4,129 |
| Heather Fm | Formation | Viking Gp | 4,082 | 4,129 |
| No Group Defined | Group | — | 4,129 | 4,152 |
| Dunlin Gp | Group | — | 4,152 | 4,416 |
| Drake Fm | Formation | Dunlin Gp | 4,152 | 4,274 |
| Cook Fm | Formation | Dunlin Gp | 4,274 | 4,355.5 |
| Burton Fm | Formation | Dunlin Gp | 4,355.5 | 4,416 |
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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