31/2-23 S

Exploration · Wildcat · P&A · Dry · Equinor Energy AS · PL 923

The lithostratigraphic units 31/2-23 S 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	—	373	814
Hordaland Gp	Group	—	814	1,518
Rogaland Gp	Group	—	1,518	1,850
Balder Fm	Formation	Rogaland Gp	1,518	1,577
Sele Fm	Formation	Rogaland Gp	1,577	1,646
Lista Fm	Formation	Rogaland Gp	1,646	1,813
Våle Fm	Formation	Rogaland Gp	1,813	1,850
Shetland Gp	Group	—	1,850	1,892
Viking Gp	Group	—	1,892	2,136
Draupne Fm	Formation	Viking Gp	1,892	1,910
Heather Fm	Formation	Viking Gp	1,910	1,928
Undifferentiated	Formation	—	1,928	2,136
Brent Gp	Group	—	2,136	2,275
Tarbert Fm	Formation	Brent Gp	2,136	2,148
Ness Fm	Formation	Brent Gp	2,148	2,226
Etive Fm	Formation	Brent Gp	2,226	2,232
Rannoch Fm	Formation	Brent Gp	2,232	2,239
Oseberg Fm	Formation	Brent Gp	2,239	2,275
Dunlin Gp	Group	—	2,275	2,367
Drake Fm	Formation	Dunlin Gp	2,275	2,367

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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