31/4-3

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

The lithostratigraphic units 31/4-3 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	—	195	906
Utsira Fm	Formation	Nordland Gp	726	906
Hordaland Gp	Group	—	906	1,723
Rogaland Gp	Group	—	1,723	1,965
Balder Fm	Formation	Rogaland Gp	1,723	1,744
Sele Fm	Formation	Rogaland Gp	1,744	1,810
Lista Fm	Formation	Rogaland Gp	1,810	1,940
Våle Fm	Formation	Rogaland Gp	1,940	1,965
Shetland Gp	Group	—	1,965	2,010
Viking Gp	Group	—	2,010	2,327
Draupne Fm	Formation	Viking Gp	2,010	2,018
Sognefjord Fm	Formation	Viking Gp	2,018	2,082
Heather Fm	Formation	Viking Gp	2,082	2,136
Fensfjord Fm	Formation	Viking Gp	2,136	2,327
Brent Gp	Group	—	2,327	2,411
Dunlin Gp	Group	—	2,411	2,702
Drake Fm	Formation	Dunlin Gp	2,411	2,448
Cook Fm	Formation	Dunlin Gp	2,448	2,470
Amundsen Fm	Formation	Dunlin Gp	2,470	2,543
Johansen Fm	Formation	Dunlin Gp	2,543	2,702
Statfjord Gp	Group	—	2,702	2,879
Hegre Gp	Group	—	2,879	4,981
No Formal Name	Formation	—	4,450	4,981

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 · 347 KB
Completion report and logpdf · 18.1 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/402, documented in the API reference.