25/8-10 S

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

The lithostratigraphic units 25/8-10 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	—	153.5	757
Utsira Fm	Formation	Nordland Gp	629	692
No Formal Name	Formation	—	692	757
Hordaland Gp	Group	—	757	1,644.7
Skade Fm	Formation	Hordaland Gp	757	900
No Formal Name	Formation	—	900	910
Skade Fm	Formation	Hordaland Gp	910	1,100
No Formal Name	Formation	—	1,100	1,644.7
Rogaland Gp	Group	—	1,644.7	1,827.4
Balder Fm	Formation	Rogaland Gp	1,644.7	1,707.6
Sele Fm	Formation	Rogaland Gp	1,707.6	1,725
Hermod Fm	Formation	Rogaland Gp	1,725	1,740.5
Lista Fm	Formation	Rogaland Gp	1,740.5	1,761.3
Heimdal Fm	Formation	Rogaland Gp	1,761.3	1,764.5
Lista Fm	Formation	Rogaland Gp	1,764.5	1,777.4
Heimdal Fm	Formation	Rogaland Gp	1,777.4	1,827.4
Shetland Gp	Group	—	1,827.4	1,890
Ekofisk Fm	Formation	Shetland Gp	1,827.4	1,890

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

Composite logpdf · 281 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.

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