NORWAY · WELLBORES · NPDID 355
25/2-3
Exploration · Wildcat · P&A · Dry · Elf Petroleum Norge AS · PL 026
25/2-3 is a wildcat exploration wellbore in the North Sea, drilled by Elf Petroleum Norge AS, entered Sep 1, 1974, to 2,795 m in the Hardråde Fm.
- 2,795
- m total depth
- 113
- m water depth
- Sep 1, 1974
- entered · completed Oct 9, 1974
- Hardråde Fm
- at total depth · Late Cretaceous
- —
- m of core
- 67
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED OCT 9, 1976
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- DEEPSEA DRILLER · Semisub steel
- Drilling days
- 39
- Kelly bushing elevation
- 25 m
- Maximum inclination
- 0°
- Drilling permit
- 115-L
- Licensing round
- 2-A
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 59.81936° N, 2.35594° E
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 25/2-3 was drilled southwest of the East Frigg Field on a Paleocene structure with the objective to increase Frigg area gas reserves. The main target was sand channels in the Paleocene Balder Formation. Early Eocene and Danian sands were considered as secondary targets.
Operations and results
Exploration well 25/2-3 was spudded with the semi-submersible installation Deepsea Driller on 1 September 1974 and drilled to TD at 2795 m in the Late Cretaceous Shetland Group.
Eocene sands (Frigg Formation) were encountered at 2073 m, 27 m deeper than expected. The top of the tuff (Balder Formation) was encountered at 2211 m, 85 m deeper than expected. Both the Hermod (153 m thick) and the Ty (144 m) Formations were well developed in the well. The top of the chalk (Shetland Group) was encountered at 2726 m. All the sandstone sequences encountered in the well were water bearing. No shows were reported from the well. No cores were cut and no fluid samples taken.
The well was permanently abandoned on 9 October 1974 as a dry hole.
Testing
No drill stem test was performed
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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