25/8-12 S

Exploration · Appraisal · P&A · Oil · Esso Exploration and Production Norway A/S · Balder · PL 027

The lithostratigraphic units 25/8-12 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	—	150	728
Utsira Fm	Formation	Nordland Gp	560	672
No Formal Name	Formation	—	672	728
Hordaland Gp	Group	—	728	1,698.8
Skade Fm	Formation	Hordaland Gp	728	954
No Formal Name	Formation	—	954	1,150
Grid Fm	Formation	Hordaland Gp	1,150	1,159
No Formal Name	Formation	—	1,159	1,698.8
Rogaland Gp	Group	—	1,698.8	1,883.6
Balder Fm	Formation	Rogaland Gp	1,698.8	1,765.6
Sele Fm	Formation	Rogaland Gp	1,765.6	1,785.1
Hermod Fm	Formation	Rogaland Gp	1,785.1	1,787.5
Sele Fm	Formation	Rogaland Gp	1,787.5	1,789.3
Hermod Fm	Formation	Rogaland Gp	1,789.3	1,801.5
Sele Fm	Formation	Rogaland Gp	1,801.5	1,838.9
Lista Fm	Formation	Rogaland Gp	1,838.9	1,879.5
Våle Fm	Formation	Rogaland Gp	1,879.5	1,883.6
Shetland Gp	Group	—	1,883.6	1,905.9
Statfjord Gp	Group	—	1,905.9	2,040
No Group Defined	Group	—	2,040	2,096
Smith Bank Fm	Formation	Hegre Gp	2,040	2,096

Core cut in each unit

METRES CORED · AS THE DIRECTORATE FILES IT

Statfjord Gp32.9
Shetland Gp0.9

The cores themselves, with their intervals →

Biostratigraphy reports and logs behind the picks

Composite logpdf · 378 KB

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/3771, documented in the API reference.