31/4-8

Exploration · Appraisal · P&A · Oil/gas · Norsk Hydro Produksjon AS · Brage · PL 055

The lithostratigraphic units 31/4-8 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	—	149	827
Utsira Fm	Formation	Nordland Gp	668	827
Hordaland Gp	Group	—	827	1,837
Rogaland Gp	Group	—	1,837	2,024
Balder Fm	Formation	Rogaland Gp	1,837	1,900
Sele Fm	Formation	Rogaland Gp	1,900	1,937
Lista Fm	Formation	Rogaland Gp	1,937	2,024
Shetland Gp	Group	—	2,024	2,079
Cromer Knoll Gp	Group	—	2,079	2,085
Viking Gp	Group	—	2,085	2,117
Draupne Fm	Formation	Viking Gp	2,085	2,088
Fensfjord Fm	Formation	Viking Gp	2,088	2,117
Dunlin Gp	Group	—	2,117	2,346
Drake Fm	Formation	Dunlin Gp	2,117	2,222
Cook Fm	Formation	Dunlin Gp	2,222	2,255
Amundsen Fm	Formation	Dunlin Gp	2,255	2,346
Statfjord Gp	Group	—	2,346	2,438
Hegre Gp	Group	—	2,438	2,611
Lunde Fm	Formation	Hegre Gp	2,438	2,611

Core cut in each unit

METRES CORED · AS THE DIRECTORATE FILES IT

The cores themselves, with their intervals →

Biostratigraphy reports and logs behind the picks

WDSS completion logpdf · 214 KB
Completion report and logpdf · 11.7 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/312, documented in the API reference.