25/11-8

Exploration · Appraisal · P&A · Oil · Esso Exploration and Production Norway A/S · Balder · PL 001

Everything taken from 25/11-8 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

8 CORES · 48.8 M IN ALL

Core	Top	Base	Depth in	In	Photos	Sample available
Core 2 →	1,730.2	1,734.2	m	Heimdal Fm	—	Yes
Core 3 →	1,737	1,740	m	Heimdal Fm	—	Yes
Core 4 →	1,742.5	1,753.3	m	Heimdal Fm	—	Yes
Core 5 →	1,756	1,757	m	Heimdal Fm	—	Yes
Core 6 →	1,762.3	1,771.7	m	Heimdal Fm	—	Yes
Core 7 →	1,771.6	1,778.4	m	Heimdal Fm	—	Yes
Core 8 →	1,781.2	1,788	m	Heimdal Fm	—	Yes
Core 9 →	1,791	1,798	m	Heimdal Fm	—	Yes

Cored length by unit, m

Rogaland Gp48.8
Heimdal Fm48.8

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 1	—	1,720	1,735	Lista Fm, Heimdal Fm	Sep 11, 1979	Jun 21, 1991	Yes

Every fluid sample from Balder →

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	1,752	1,767	Heimdal Fm	15.1	418	0	0.9	46	—	52

Every drill-stem test in Balder →

Cuttings

200 to 1,950 mSample available: yes

Palynology slides

51 ON FILE · 1,635 TO 1,925

Made from: Sidewall core 25, Ditch cuttings 15, Core 11. Laboratory codes: none given 50, CGG 1.

Depth	Made from	Lab code	In
1,635 m	Sidewall core	—	Hordaland Gp
1,650 m	Sidewall core	—	Hordaland Gp
1,652 m	Sidewall core	—	Hordaland Gp
1,660 m	Sidewall core	—	Balder Fm
1,675 m	Sidewall core	—	Intra Balder Fm Ss
1,679.5 m	Sidewall core	—	Balder Fm
1,684.5 m	Sidewall core	—	Balder Fm
1,690 m	Ditch cuttings	—	Balder Fm
1,693 m	Sidewall core	—	Intra Balder Fm Ss
1,700 m	Ditch cuttings	—	Sele Fm
1,702.5 m	Sidewall core	—	Sele Fm
1,709.5 m	Sidewall core	—	Sele Fm
1,710 m	Ditch cuttings	—	Sele Fm
1,714 m	Sidewall core	—	Lista Fm
1,715 m	Ditch cuttings	—	Lista Fm
1,717 m	Sidewall core	—	Lista Fm
1,720 m	Ditch cuttings	—	Lista Fm
1,721 m	Sidewall core	—	Lista Fm
1,725 m	Ditch cuttings	—	Heimdal Fm
1,728.2 m	Core	—	Heimdal Fm
1,730 m	Ditch cuttings	—	Heimdal Fm
1,730.3 m	Core	—	Heimdal Fm
1,730.7 m	Core	—	Heimdal Fm
1,731.4 m	Core	CGG	Heimdal Fm
1,732 m	Core	—	Heimdal Fm
1,732.5 m	Core	—	Heimdal Fm
1,737 m	Ditch cuttings	—	Heimdal Fm
1,737 m	Core	—	Heimdal Fm
1,737 m	Sidewall core	—	Heimdal Fm
1,738 m	Core	—	Heimdal Fm
1,739 m	Core	—	Heimdal Fm
1,739.3 m	Core	—	Heimdal Fm
1,740 m	Core	—	Heimdal Fm
1,779 m	Sidewall core	—	Heimdal Fm
1,783 m	Sidewall core	—	Heimdal Fm
1,835 m	Sidewall core	—	Heimdal Fm
1,839 m	Sidewall core	—	Heimdal Fm
1,849 m	Sidewall core	—	Heimdal Fm
1,850 m	Ditch cuttings	—	Heimdal Fm
1,852 m	Sidewall core	—	Heimdal Fm

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/369, documented in the API reference.