NORWAY · WELLBORES · NPDID 4593
31/5-5 R
Exploration · Appraisal · P&A · Oil/gas · Norsk Hydro Produksjon AS · Troll · PL 085
The lithostratigraphic units 31/5-5 R 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 | — | 354 | 748 |
| Hordaland Gp | Group | — | 748 | 1,302 |
| Rogaland Gp | Group | — | 1,302 | 1,536 |
| Balder Fm | Formation | Rogaland Gp | 1,302 | 1,382 |
| Sele Fm | Formation | Rogaland Gp | 1,382 | 1,411 |
| Lista Fm | Formation | Rogaland Gp | 1,411 | 1,536 |
| Shetland Gp | Group | — | 1,536 | 1,561 |
| Cromer Knoll Gp | Group | — | 1,561 | 1,579 |
| Viking Gp | Group | — | 1,579 | 1,936.5 |
| Sognefjord Fm | Formation | Viking Gp | 1,579 | 1,667 |
| Heather Fm | Formation | Viking Gp | 1,667 | 1,732 |
| Fensfjord Fm | Formation | Viking Gp | 1,732 | 1,862 |
| Krossfjord Fm | Formation | Viking Gp | 1,862 | 1,936.5 |
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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