NORWAY · WELLBORES · NPDID 7504
31/10-1
Exploration · Wildcat · P&A · Dry · Tullow Oil Norge AS · PL 507
31/10-1 is a wildcat exploration wellbore in the North Sea, drilled by Tullow Oil Norge AS, entered Jul 1, 2014, to 2,388 m in the Shetland Gp.
- 2,388
- m total depth · 2,388 m vertical
- 121
- m water depth
- Jul 1, 2014
- entered · completed Jul 25, 2014
- Shetland Gp
- at total depth · Late Cretaceous
- —
- m of core
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED JUL 25, 2016
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
- 25
- Kelly bushing elevation
- 31 m
- Maximum inclination
- 0.80000001°
- Drilling permit
- 1528-L
- Licensing round
- TFO2008
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 60.08622° N, 3.00111° E
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 31/10-1 was drilled to test the Lupus prospect south of the Oseberg/Brage fields on the western flank of the Stord Basin in the North Sea. The objective was to test the hydrocarbon potential in Paleocene sands, with in the Hermod Formation as primary target and the Ty/Heimdal formations as secondary target.
Operations and results
Wildcat well 31/10-1 was spudded with the semi-submersible installation Borgland Dolphin on 1 July 2014 and drilled to TD at 2388 m in the Late Cretaceous Shetland Group. A 9 7/8" pilot hole was drilled to 1083 m to check for shallow gas. No shallow gas was seen. No significant problem was encountered in the operations. The well was drilled with seawater and sweeps down to 1083 m and with Performadril mud from 1083 m to TD.
Reservoirs with good to excellent quality were found in Paleocene Hermod Formation. The Ty Formation was not present. The well was dry without shows all through.
No cores were cut and no wireline logs were run. No fluid sample was taken.
The well was permanently abandoned on 25 July as a dry well.
Testing
No drill stem test was performed.
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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