NORWAY · WELLBORES · NPDID 251

2/1-3

Exploration · Wildcat · P&A · Oil · BP Norway Limited U.A. · Gyda · PL 019 B

10 documents: reports, logs, and plots →

2/1-3 is a wildcat exploration wellbore in the North Sea, drilled by BP Norway Limited U.A., entered Nov 3, 1979, to 4,297 m in the Zechstein Gp.

Discovery 2/1-3 Gyda · On the map →

4,297
m total depth · 4,296 m vertical
66
m water depth
Nov 3, 1979
entered · completed Mar 29, 1980
Zechstein Gp
at total depth · Late Permian
51.1
m of core in 4 cores
162
°C bottom-hole temperature

SODIR FACTPAGES · RECORD UPDATED NOV 4, 2026 · RELEASED MAR 29, 1982

On file for this wellbore

What the Directorate holds from this wellbore. Each opens the section that lists it.

Drilling

Drilling facility
SEDCO H · Semisub steel
Drilling days
148
Kelly bushing elevation
30 m
Maximum inclination
3°
Drilling permit
229-L
Licensing round
1-A
Plugged and abandoned
—
Core samples available
Yes
Cuttings samples available
No
Position · ED50
56.91150° N, 3.10844° E
Hydrocarbons in
Ula Fm · Late Jurassic

Well history

WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE

General

Well 2/1-3 was drilled on the Cod Terrace on the margin between the southern Vestland Arch and the Central Trough in the North Sea. The primary objective of the well was to test Late Jurassic sandstone within a fault sealed dip closure, against the downthrown side of a westerly heading fault complex at the base of the Cretaceous. Triassic sandstone was a secondary objective.

Operations and results

Wildcat well 2/1-3 was spudded with the semi-submersible installation SEDCO H on 3 November 1979 and drilled to TD at 4297 in the Late Permian Zechstein Group. The well was drilled with Seawater down to 625 m and with Lignosulphonate mud from 625 m to TD.

Top of the Tyne Group, Mandal Formation, was encountered at 3791 m, with the Late Jurassic sandstone at 3819.5 m. The Late Jurassic sandstone reservoir was oil-bearing all through. The reservoir is a 59.5 m thick homogeneous fine to medium grained sandstone with a porosity from 15% to 22%. The sandstone grades into a well cemented argillaceous siltstone below. No oil/water contact was established. Oil shows were recorded in Tor Formation limestone at 3000 - 3005 m, throughout the Late Jurassic reservoir sandstone, and in Middle Jurassic Bryne Formation sandstone at 4020 to 4040 m.

Four cores were cut from 3823.0 to 3893.5 m in the Ula Formation reservoir sandstones.

The well was permanently abandoned on 29 March 1980 as an oil discovery.

Testing

Three drill stem tests were performed in the Late Jurassic sandstones.

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Around this wellbore

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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 zero the Directorate files for an unmeasured pressure, density, or temperature is shown as a dash.

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