31/4-5

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

The lithostratigraphic units 31/4-5 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	—	168	911
Utsira Fm	Formation	Nordland Gp	696	911
Hordaland Gp	Group	—	911	1,772
Rogaland Gp	Group	—	1,772	2,011
Balder Fm	Formation	Rogaland Gp	1,772	1,824
Sele Fm	Formation	Rogaland Gp	1,824	1,862
Lista Fm	Formation	Rogaland Gp	1,862	1,980
Våle Fm	Formation	Rogaland Gp	1,980	2,011
Shetland Gp	Group	—	2,011	2,050
Cromer Knoll Gp	Group	—	2,050	2,060
Viking Gp	Group	—	2,060	2,278
Draupne Fm	Formation	Viking Gp	2,060	2,070
Sognefjord Fm	Formation	Viking Gp	2,070	2,078
Heather Fm	Formation	Viking Gp	2,078	2,104
Fensfjord Fm	Formation	Viking Gp	2,104	2,278
Brent Gp	Group	—	2,278	2,356
Dunlin Gp	Group	—	2,356	2,645
Drake Fm	Formation	Dunlin Gp	2,356	2,482
Cook Fm	Formation	Dunlin Gp	2,482	2,521
Amundsen Fm	Formation	Dunlin Gp	2,521	2,645
Statfjord Gp	Group	—	2,645	2,849
Hegre Gp	Group	—	2,849	2,930

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 · 262 KB
Completion logpdf · 2.4 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/403, documented in the API reference.