NORWAY · WELLBORES · NPDID 7524
34/7-36 S
Exploration · Wildcat · P&A · Dry · Det norske oljeselskap ASA · PL 553
34/7-36 S is a wildcat exploration wellbore in the North Sea, drilled by Det norske oljeselskap ASA, entered Jul 28, 2014, to 3,690 m in the Ness Fm.
- 3,690
- m total depth · 3,670 m vertical
- 303.5
- m water depth
- Jul 28, 2014
- entered · completed Sep 17, 2014
- Ness Fm
- at total depth · Middle Jurassic
- —
- m of core
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED AUG 17, 2015
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- BORGLAND DOLPHIN · Semisub steel
- Drilling days
- 52
- Kelly bushing elevation
- 31 m
- Maximum inclination
- 10.60000038°
- Drilling permit
- 1530-L
- Licensing round
- TFO2009
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 61.36278° N, 2.30579° E
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 34/7-36 S was drilled on the Kvitvole prospect on the Tampen Spur between the Visund and Snorre fields in the North Sea. The Kvitvole primary objective was to test the hydrocarbon potential in Intra-Draupne Formation sandstone. The secondary objective was to test the Blåvola prospect, with possibly hydrocarbon filled sandstones within the Brent Group.
Operations and results
Wildcat well 34/7-36 S was spudded with the semi-submersible installation Borgland Dolphin on 28 July 2014 and drilled to a depth of 1232 m. When running the 20" casing, the casing was stuck at 1119 m. The well was subsequently sidetracked (34/7-36 S T2) at 829 m, and drilled to TD at 3690 m in the Middle Jurassic Ness Formation. The well was drilled with seawater and hi-vis sweeps down to TD at 1235 m in the original hole. The 34/7-36 S sidetrack was drilled with Inovert oil based mud from kick-off to TD. After drilling to TD in the 17 1/2" section a 5-m3 spill of OBM to sea occurred.
The Draupne Formation was encountered at 3396 m. However, the main target of the well, intra Draupne sandstone, was not present. The Brent Group was encountered at 3590 m. Reservoir sandstones were encountered, but the reservoir quality was poorer than expected. No hydrocarbons were observed. Evaluation of oil shows were made difficult due to the use of oil based mud. The only definite oil show described was in a limestone stringer at 3272 m.
No cores were cut in the well. No wire line logs were run in the 8 1/2" section and thus no fluid sampling was attempted the target reservoirs. Due to elevated resistivity in an unexpected Heimdal Formation sandstone two wire line runs were performed in this section
Around this wellbore
This wellbore on Sodir FactPages → · Press release →
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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