25/4-5

Exploration · Appraisal · P&A · Oil/gas · Elf Petroleum Norge AS · Heimdal · PL 036

Everything taken from 25/4-5 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

17 CORES · 217.5 M IN ALL

Core	Top	Base	Depth in	In	Photos	Sample available
Core 1 →	2,130	2,146	m	Lista Fm	—	Yes
Core 2 →	2,148	2,152	m	Lista Fm, Heimdal Fm	—	Yes
Core 3 →	2,154.5	2,158	m	Heimdal Fm	—	Yes
Core 4 →	2,158	2,172.8	m	Heimdal Fm	—	Yes
Core 5 →	2,172	2,180.4	m	Heimdal Fm	—	Yes
Core 6 →	2,181	2,190.9	m	Heimdal Fm	—	Yes
Core 7 →	2,191	2,199.6	m	Heimdal Fm	—	Yes
Core 8 →	2,200	2,218	m	Heimdal Fm	—	Yes
Core 9 →	2,224	2,232	m	Heimdal Fm	—	Yes
Core 10 →	3,695	3,713.1	m	Hugin Fm	—	Yes
Core 11 →	3,713	3,730.8	m	Hugin Fm, Sleipner Fm	—	Yes
Core 12 →	3,954.5	3,970.5	m	Statfjord Gp	—	Yes
Core 13 →	3,971.5	3,984	m	Statfjord Gp	—	Yes
Core 14 →	3,985	3,998.5	m	Statfjord Gp	—	Yes
Core 15 →	3,998.5	4,014.5	m	Statfjord Gp	—	Yes
Core 16 →	4,183.5	4,198	m	Skagerrak Fm	—	Yes
Core 17 →	4,140	4,158	m	Skagerrak Fm	—	Yes

Cored length by unit, m

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

Fluid samples

Test	Fluid	From, m	To, m	In	Tested	Received	Sample available
DST 2	Water	4,065	4,088	Statfjord Gp	Mar 9, 1981	Aug 9, 1995	Yes
DST TEST1	Water	4,154	4,176	Skagerrak Fm	Mar 15, 1981	Aug 9, 1995	Yes

Every fluid sample from Heimdal →

Geochemistry and fluid analysis on file

Geochemical information 1pdf · 186 KB
Geochemical information 2pdf · 784 KB

Drill-stem tests

Test	From, m	To, m	In	Choke, mm	Oil density, g/cm³	GOR, m³/m³	BHP, MPa	Temp, °C
DST 1	4,154	4,176	Skagerrak Fm	—	—	—	—	—
DST 2	4,065	4,088	Statfjord Gp	—	—	—	—	—
DST 3	3,969	3,999	Statfjord Gp	—	—	—	—	—

Every drill-stem test in Heimdal →

Test reports and pressure plots on file

Formation pressure plotpdf · 224 KB

Cuttings

211 to 4,332 mSample available: yes

Thin sections

6 ON FILE · 3,700.2 TO 3,729.3 M

Section	Depth	In
3303	3,700.2 m	Hugin Fm
3304	3,703.6 m	Hugin Fm
3305	3,711.2 m	Hugin Fm
3306	3,718.1 m	Hugin Fm
3307	3,722.8 m	Hugin Fm
3308	3,729.3 m	Hugin Fm

Thin sections from every well in Heimdal →

Palynology slides

23 ON FILE · 1,950 TO 2,428

Made from: Ditch cuttings 23. Laboratory codes: RRI 23.

Depth	Made from	Lab code	In
1,950 m	Ditch cuttings	RRI	Hordaland Gp
1,960 m	Ditch cuttings	RRI	Hordaland Gp
1,970 m	Ditch cuttings	RRI	Hordaland Gp
1,990 m	Ditch cuttings	RRI	Hordaland Gp
2,010 m	Ditch cuttings	RRI	Balder Fm
2,033 m	Ditch cuttings	RRI	Sele Fm
2,060 m	Ditch cuttings	RRI	Sele Fm
2,080 m	Ditch cuttings	RRI	Sele Fm
2,100 m	Ditch cuttings	RRI	Lista Fm
2,120 m	Ditch cuttings	RRI	Lista Fm
2,130 m	Ditch cuttings	RRI	Lista Fm
2,140 m	Ditch cuttings	RRI	Lista Fm
2,150 m	Ditch cuttings	RRI	Heimdal Fm
2,160 m	Ditch cuttings	RRI	Heimdal Fm
2,166 m	Ditch cuttings	RRI	Heimdal Fm
2,238 m	Ditch cuttings	RRI	Heimdal Fm
2,266 m	Ditch cuttings	RRI	Heimdal Fm
2,290 m	Ditch cuttings	RRI	Heimdal Fm
2,310 m	Ditch cuttings	RRI	Heimdal Fm
2,356 m	Ditch cuttings	RRI	Lista Fm
2,378 m	Ditch cuttings	RRI	Lista Fm
2,404 m	Ditch cuttings	RRI	Lista Fm
2,428 m	Ditch cuttings	RRI	Lista 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/201, documented in the API reference.