NORWAY · WELLBORES · NPDID 7308
25/5-8
Exploration · Wildcat · Junked · Not applicable · Total E&P Norge AS · PL 102 F
25/5-8 is a wildcat exploration wellbore in the North Sea, drilled by Total E&P Norge AS, entered Dec 14, 2013, to 1,199 m in the Hordaland Gp.
- 1,199
- m total depth · 1,199 m vertical
- 121
- m water depth
- Dec 14, 2013
- entered · completed Jan 1, 2014
- Hordaland Gp
- at total depth · Eocene
- —
- m of core
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED JAN 1, 2016
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- LEIV EIRIKSSON · Semisub steel
- Drilling days
- 18
- Kelly bushing elevation
- 25 m
- Maximum inclination
- 1.20000005°
- Drilling permit
- 1495-L
- Licensing round
- TFO2011
- Plugged and abandoned
- —
- Core samples available
- No
- Cuttings samples available
- No
- Position · ED50
- 59.61833° N, 2.39556° E
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 25/5-8 was drilled on the Trell prospect on the Heimdal Terrace in the North Sea. The primary objective was to test the Paleocene Heimdal Formation sandstone. If the well was proven hydrocarbon bearing, a 30m core was to be cut followed by a full WL acquisition and a DST in order to assess the hydrocarbon potential in the prospect. Another objective of the well was to calibrate the depth of the Heimdal sand in the area.
Operations and results
Wildcat well 25/5-8 was spudded with the semi-submersible installation Leiv Eiriksson on 14 December 2013 and drilled to TD at 1199 m in Eocene sediments in the Hordaland Group. Due to severe hole problems, probably related to boulders, running of the 13 3/8" casing failed. It was decided to abandon the location and drill a replacement well. The well was drilled with spud mud all through.
No cores were cut and no fluid sample was taken.
On 1 January, the well was plugged and abandoned as a junk well. The rig moved 50 m east of the wellhead location to spud Trell replacement well 25/5-9.
Testing
No drill stem test was performed.
Around this wellbore
This wellbore on Sodir FactPages →
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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