31/4-5

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

31/4-5 was cored 9 times, 144.3 m in all between 2,063 and 2,309.9 m.

9: cores
144.3: metres cored in all
50: photographs of 9 cores
13: thin sections inside the cores
57: palynology slides made from core
6: tests and fluid samples across the cores

SODIR FACTPAGES · PLACED BY DEPTH IN THIS WELLBORE

Core log

Core by core

Core	Top	Base	Length	In	Thin sections	Slides from core	Tests	Sample available
Core 1 →	2,063 m	2,065 m	2	Draupne Fm	—	4	—	Yes
Core 2 →	2,065 m	2,083 m	18	Draupne Fm, Sognefjord Fm, Heather Fm	2	14	—	Yes
Core 3 →	2,083 m	2,100.1 m	17.1	Heather Fm	—	9	—	Yes
Core 4 →	2,100.1 m	2,119 m	18.9	Heather Fm, Fensfjord Fm	4	9	1	Yes
Core 5 →	2,119 m	2,136.6 m	17.6	Fensfjord Fm	4	3	2	Yes
Core 6 →	2,137.5 m	2,155.6 m	18.1	Fensfjord Fm	1	3	2	Yes
Core 7 →	2,156.5 m	2,173.8 m	17.3	Fensfjord Fm	2	3	1	Yes
Core 8 →	2,173.8 m	2,191.7 m	17.9	Fensfjord Fm	—	4	—	Yes
Core 9 →	2,292.4 m	2,309.9 m	17.5	Brent Gp	—	8	—	Yes

Seeing the cores themselves

The cores are held by the Norwegian Offshore Directorate in its Geobank, which has rooms for viewing and sampling by booking.

The Directorate's Geobank: viewing and sampling →

About this data

Norwegian Offshore Directorate (Sodir) FactPages, mirrored nightly and used under the Norwegian Licence for Open Government Data (NLOD). The Directorate files each core as an interval and nothing against it. The log places everything else on file for the wellbore inside the core whose interval contains its depth: photographs by the interval in their title, thin sections and slides by their depth, tests by overlap, formations by this wellbore's own tops. Core depths are driller's depths, so a mark at the very edge of a core can belong to its neighbor. Only slides made from core are shown; slides from cuttings at the same depths are on the Samples tab.

Developers: this page as JSON is GET /v1/data/norway/wells/403/cores, documented in the API reference.