NORWAY · WELLBORES · NPDID 453
34/10-29
Exploration · Appraisal · P&A · Gas · Den norske stats oljeselskap a.s · Gullfaks · PL 050
34/10-29 is an appraisal exploration wellbore in the North Sea, drilled by Den norske stats oljeselskap a.s, entered Dec 27, 1985, to 405 m in the Nordland Gp.
Discovery 34/10-1 Gullfaks · On the map →
- 405
- m total depth · 405 m vertical
- 135
- m water depth
- Dec 27, 1985
- entered · completed Jan 26, 1986
- Nordland Gp
- at total depth · Pliocene
- —
- m of core
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED JAN 26, 1988
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- WEST VENTURE OLD · Semisub steel
- Drilling days
- 31
- Kelly bushing elevation
- 32 m
- Maximum inclination
- 0.80000001°
- Drilling permit
- 496-L
- Licensing round
- Awarded additionally to round 3
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- No
- Position · ED50
- 61.17585° N, 2.19132° E
- Hydrocarbons in
- Nordland Gp · Pliocene
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 34/10-29 was drilled on the Gullfaks Field to investigate and drain possible shallow gas sands between 342 to 347 m at the platform A location on the Gullfaks Field.
Operations and results
During anchoring a damaged fairlead for anchor no 8 was discovered and the rig had to be towed to land for repair. Nine days were lost. Also the rough weather with wind speed up to 36 - 42 m/s and waves reaching 16 m caused significant WOW down-time. Well 34/10 was spudded with the semi-submersible installation West Venture on 27 December 1985 and drilled to TD at 482 m in Pliocene sediments in the Nordland Group. Apart from WOW no significant down-time or technical problem was encountered in the operations. The well was drilled with water based mud.
Top Pliocene was encountered at 291 m. The well penetrated sand in the interval 344 m to 348 m. The upper 0.5 m was gas bearing.
Three short cores were cut with junk catcher in the interval 344 m to 347 m. A total of ca one meter clay with variable silt/sand/pebbles was retrieved. No wire line fluid samples were taken. Cuttings samples were taken every 5 m from 275 m to TD.
The well was permanently abandoned on 26 January 1986.
Testing
The well was perforated and tested in the interval 344 m to 346 m, with nitrogen cushion. In the first flow period the well produced gas at a rate of ca 25000 Sm3/day. A perforation wash was performed, and then acid treatment in order to increase the flow. No further flow was achieved and the well was killed.
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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