31/4-9

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

The lithostratigraphic units 31/4-9 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	—	170	846
Utsira Fm	Formation	Nordland Gp	685	846
Hordaland Gp	Group	—	846	1,793
Rogaland Gp	Group	—	1,793	2,043
Balder Fm	Formation	Rogaland Gp	1,793	1,852
Sele Fm	Formation	Rogaland Gp	1,852	1,892
Lista Fm	Formation	Rogaland Gp	1,892	2,043
Shetland Gp	Group	—	2,043	2,093
Hardråde Fm	Formation	Shetland Gp	2,043	2,093
Cromer Knoll Gp	Group	—	2,093	2,102
Viking Gp	Group	—	2,102	2,368
Draupne Fm	Formation	Viking Gp	2,102	2,118
Heather Fm	Formation	Viking Gp	2,118	2,169
Fensfjord Fm	Formation	Viking Gp	2,169	2,368
Brent Gp	Group	—	2,368	2,411
Ness Fm	Formation	Brent Gp	2,368	2,398
Rannoch Fm	Formation	Brent Gp	2,398	2,411
Dunlin Gp	Group	—	2,411	2,480
Drake Fm	Formation	Dunlin Gp	2,411	2,480

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 · 198 KB
Completion logpdf · 3.5 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/1026, documented in the API reference.