NORWAY · WELLBORES · NPDID 7486
33/12-10 S
Exploration · Wildcat · P&A · Dry · Lundin Norway AS · PL 631
33/12-10 S is a wildcat exploration wellbore in the North Sea, drilled by Lundin Norway AS, entered Aug 30, 2014, to 3,097 m in the Heather Fm.
- 3,097
- m total depth · 3,089.2 m vertical
- 140
- m water depth
- Aug 30, 2014
- entered · completed Oct 23, 2014
- Heather Fm
- at total depth · Middle Jurassic
- 32.2
- m of core in 3 cores
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED JUL 5, 2016
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- BREDFORD DOLPHIN · Semisub steel
- Drilling days
- 55
- Kelly bushing elevation
- 25 m
- Maximum inclination
- 7.80000019°
- Drilling permit
- 1525-L
- Licensing round
- TFO2011
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 61.11884° N, 1.94130° E
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 33/12-10 S was drilled to test the Vollgrav prospect, between the Gullfaks Sør Field and the UK border in the Tampen Spur area of the North Sea. The primary objective of the well was to prove the reservoir potential and hydrocarbons in an untested Late Jurassic depositional wedge of Draupne Formation sandstone, Munin and Magnus members, seen in the Borg Field to the north of the prospect. The secondary objective of the well was to test the reservoir and hydrocarbon potential of the overlaying injectite embedded in sediments of early Eocene age. The TD criterion was to drill to approximately 3075 m, into the Late Jurassic Heather Formation.
Operations and results
Wildcat well 33/12-10 S was spudded with the semi-submersible installation Bredford Dolphin on 30 August 2014 and drilled to TD at 3097 m (3089 m TVD) m in the Late Callovian sediments belonging to the Heather Formation. No significant problem was encountered in the operations. The well was drilled with seawater and hi-vis sweeps down to 454.5 m and with Aquadril mud from 454.5 m to TD.
The Draupne Formation interval was encountered at 2944 m (2936 m TVD), 40 m deep to prognosis. The prognosed Intra Draupne Formation sandstones were not present in the well. Sandstone was found in the secondary Eocene target at 1686.5 m (1686.3 m TVD) but these did not show any signs of hydrocarbons. Fluorescence was described in limestones in a thin Cromer Knoll Group overlying the Viking Group, and throughout the shales of the Viking Group. No real oil show in permeable lithology was recorded in the well.
A total of 32.2 m core was cut in the interval 2938 m to 2970.5 m with 99.1% total recovery. No logs were run on wireline due
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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