25/8-1

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

12 documents: reports, logs, and plots →

Everything taken from 25/8-1 that the Directorate has on file, each with its depth and the formation that depth sits in by this wellbore's own tops. Open a core for its photographs, the thin sections and slides cut from it, and the tests across it.

Cores

7 CORES · 110.3 FT IN ALL

Core	Top	Base	Depth in	In	Photos	Sample available
Core 1 →	5,500	5,528	ft	Balder Fm	—	Yes
Core 2 →	5,657	5,715	ft	Balder Fm, Sele Fm	—	Yes
Core 3 →	5,713	5,770	ft	Sele Fm, Hermod Fm	—	Yes
Core 4 →	5,770	5,815	ft	Hermod Fm, Sele Fm, Lista Fm	—	Yes
Core 5 →	5,815	5,875	ft	Lista Fm, Heimdal Fm	—	Yes
Core 6 →	6,000	6,060	ft	Lista Fm, Våle Fm, Ekofisk Fm	—	Yes
Core 7 →	7,740	7,794	ft	—	—	Yes

Cored length by unit, m

The core log: every core down the well →Every core from Balder →

Fluid samples

Test	Fluid	From, m	To, m	In	Tested	Received	Sample available
DST TEST1	—	1,762	1,755	Hermod Fm	Jun 30, 1970	Jun 21, 1991	Yes

Every fluid sample from Balder →

Geochemistry and fluid analysis on file

Drill-stem tests

Test	From, m	To, m	In	Choke, mm	Oil, Sm³/d	Gas, Sm³/d	Oil density, g/cm³	GOR, m³/m³	BHP, MPa	Temp, °C
DST 1	1,755	1,762	Hermod Fm	25.4	429	9,965	0.93	23	—	—

Every drill-stem test in Balder →

Test reports and pressure plots on file

Formation pressure plotpdf · 212 KB

Cuttings

2,407.9 to 2,603 mSample available: yes

Thin sections

24 ON FILE · 1,754 TO 7,779.3 M

Section	Depth	In
435	1,754 m	Hermod Fm
436	1,754 m	Hermod Fm
439	1,754 m	Hermod Fm
437	1,755 m	Hermod Fm
438	1,756 m	Hermod Fm
4419	5,458 ft	Hordaland Gp
4418	5,674.6 ft	Balder Fm
451	5,773 ft	Hermod Fm
448	5,776.5 ft	Hermod Fm
452	5,825.5 ft	Lista Fm
450	5,836 ft	Heimdal Fm
4420	5,840 ft	Heimdal Fm
444	5,845 ft	Heimdal Fm
445	5,862 ft	Heimdal Fm
443	5,866 ft	Heimdal Fm
449	5,869 ft	Heimdal Fm
4421	5,874 ft	Heimdal Fm
446	5,875 ft	Heimdal Fm
447	6,042.5 ft	Våle Fm
454	7,740 ft	—
4422	7,743.9 ft	—
453	7,767 m	—
4423	7,767.1 ft	—
4424	7,779.3 ft	—

Thin sections from every well in Balder →

Palynology slides

33 ON FILE · 6,360 TO 7,200

Made from: Ditch cuttings 33. Laboratory codes: RRI 33.

Depth	Made from	Lab code	In
6,360 ft	Ditch cuttings	RRI	Cromer Knoll Gp
6,400 ft	Ditch cuttings	RRI	Cromer Knoll Gp
6,440 ft	Ditch cuttings	RRI	Cromer Knoll Gp
6,480 ft	Ditch cuttings	RRI	Cromer Knoll Gp
6,500 ft	Ditch cuttings	RRI	Draupne Fm
6,510 ft	Ditch cuttings	RRI	Draupne Fm
6,520 ft	Ditch cuttings	RRI	Statfjord Gp
6,530 ft	Ditch cuttings	RRI	Statfjord Gp
6,540 ft	Ditch cuttings	RRI	Statfjord Gp
6,550 ft	Ditch cuttings	RRI	Statfjord Gp
6,560 ft	Ditch cuttings	RRI	Statfjord Gp
6,570 ft	Ditch cuttings	RRI	Statfjord Gp
6,600 ft	Ditch cuttings	RRI	Statfjord Gp
6,610 ft	Ditch cuttings	RRI	Statfjord Gp
6,640 ft	Ditch cuttings	RRI	Statfjord Gp
6,650 ft	Ditch cuttings	RRI	Statfjord Gp
6,680 ft	Ditch cuttings	RRI	Statfjord Gp
6,700 ft	Ditch cuttings	RRI	Statfjord Gp
6,720 ft	Ditch cuttings	RRI	Statfjord Gp
6,760 ft	Ditch cuttings	RRI	Statfjord Gp
6,760 ft	Ditch cuttings	RRI	Statfjord Gp
6,800 ft	Ditch cuttings	RRI	Statfjord Gp
6,800 ft	Ditch cuttings	RRI	Statfjord Gp
6,840 ft	Ditch cuttings	RRI	Statfjord Gp
6,880 ft	Ditch cuttings	RRI	Statfjord Gp
6,920 ft	Ditch cuttings	RRI	Statfjord Gp
6,960 ft	Ditch cuttings	RRI	Statfjord Gp
7,000 ft	Ditch cuttings	RRI	Statfjord Gp
7,040 ft	Ditch cuttings	RRI	Statfjord Gp
7,080 ft	Ditch cuttings	RRI	Statfjord Gp
7,120 ft	Ditch cuttings	RRI	—
7,160 ft	Ditch cuttings	RRI	—
7,200 ft	Ditch cuttings	RRI	—

Seeing the material itself

The cores, cuttings, and thin sections listed here are physical samples held by the Norwegian Offshore Directorate in its Geobank, which has rooms for viewing and sampling them by booking. There are no images of thin sections or slides online; core photographs are the only pictures the Directorate publishes.

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). Depths are metres along the wellbore from the kelly bushing unless a row gives its own unit; older cores are filed in feet. A core's photographs are the ones whose titled interval overlaps the core's. Reports are placed beside the material they are about by their document type and file name, which is all the Directorate publishes about them. The unit beside a core, sample, test, or slide is the one whose top and base, in this wellbore's own tops, contain that depth; core and test depths are driller's depths, so an interval at a boundary can sit a few metres off. A zero the Directorate files for an unmeasured pressure, density, or temperature is shown as a dash. Availability is the Directorate's flag, not a stock check. Core photographs are links to its own files; Petrora does not hold copies.

Developers: this page as JSON is GET /v1/data/norway/wells/173, documented in the API reference.