NORWAY · WELLBORES · NPDID 173

25/8-1

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

12 documents: reports, logs, and plots →

25/8-1 was cored 7 times, 110.3 m in all between 5,500 and 7,794 ft.

7
cores
110.3
metres cored in all
22
thin sections inside the cores
4
tests and fluid samples across the cores

SODIR FACTPAGES · PLACED BY DEPTH IN THIS WELLBORE

Core log

DEPTHFORMATIONCOREPHOTOSTHINSEC.SLIDESTESTS5,5005,528Balder Fm, 1,676.4 to 1,684.9 mBalder FmCore 1, 5,500 to 5,528 ft. Open the core.Core 128 ft39.3 m not cored5,6575,715Balder Fm, 1,724.3 to 1,735.8 mBalder FmSele Fm, 1,735.8 to 1,741.9 mSele FmCore 2, 5,657 to 5,715 ft. Open the core.Core 258 ft5,770Sele Fm, 1,741.3 to 1,754 mSele FmHermod Fm, 1,754 to 1,758.7 mHermod FmCore 3, 5,713 to 5,770 ft. Open the core.Core 357 ft5,815Hermod Fm, 1,758.7 to 1,763 mHermod FmSele Fm, 1,763 to 1,766.7 mSele FmLista Fm, 1,766.7 to 1,772.4 mLista FmCore 4, 5,770 to 5,815 ft. Open the core.Core 445 ft5,875Lista Fm, 1,772.4 to 1,776.5 mLista FmHeimdal Fm, 1,776.5 to 1,790.7 mHeimdal FmCore 5, 5,815 to 5,875 ft. Open the core.Core 560 ft38.1 m not cored6,0006,060Lista Fm, 1,828.8 to 1,841.3 mLista FmVåle Fm, 1,841.3 to 1,845.6 mVåle FmEkofisk Fm, 1,845.6 to 1,847.1 mCore 6, 6,000 to 6,060 ft. Open the core.Core 660 ft512.1 m not cored7,7407,794 ftCore 7, 7,740 to 7,794 ft. Open the core.Core 754 ft

Core by core

CoreTopBaseLengthInPhotosThin sectionsSlides from coreTestsSample available
Core 1 →5,500 ft5,528 ft28Balder Fm————Yes
Core 2 →5,657 ft5,715 ft58Balder Fm, Sele Fm—1——Yes
Core 3 →5,713 ft5,770 ft57Sele Fm, Hermod Fm—5—2Yes
Core 4 →5,770 ft5,815 ft45Hermod Fm, Sele Fm, Lista Fm—2—2Yes
Core 5 →5,815 ft5,875 ft60Lista Fm, Heimdal Fm—9——Yes
Core 6 →6,000 ft6,060 ft60Lista Fm, Våle Fm, Ekofisk Fm—1——Yes
Core 7 →7,740 ft7,794 ft54——4——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/173/cores, documented in the API reference.