NORWAY · WELLBORES · NPDID 318
15/6-3
Exploration · Wildcat · P&A · Gas/condensate · Esso Exploration and Production Norway A/S · Sleipner Vest · PL 029
15/6-3 is a wildcat exploration wellbore in the North Sea, drilled by Esso Exploration and Production Norway A/S, entered Sep 5, 1974, to 3,795 m in the Skagerrak Fm.
Discovery 15/6-3 Sleipner Vest · On the map →
- 3,795
- m total depth
- 113
- m water depth
- Sep 5, 1974
- entered · completed Dec 19, 1974
- Skagerrak Fm
- at total depth · Late Triassic
- 125.6
- ft of core in 10 cores
- 106
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED NOV 4, 2026 · RELEASED DEC 19, 1976
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- DRILLMASTER · Semisub steel
- Drilling days
- 106
- Kelly bushing elevation
- 24 m
- Maximum inclination
- 0°
- Drilling permit
- 114-L
- Licensing round
- 2-A
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 58.50440° N, 1.71097° E
- Hydrocarbons in
- Vestland Gp · Middle Jurassic
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 15/6-3 was drilled in the Ve Sub-basin in the south Viking Graben in the North Sea. The primary objective was to test the Dogger Sands (Middle Jurassic), which were gas bearing in 15/6-2 R, at a structurally higher position on a large north south trending anticline.
Operations and results
Wildcat well 15/6-3 was spudded with the semi-submersible installation Drillmaster on 5 September 1974 and drilled to TD at 3795 m in Late Triassic sediments of the Skagerrak Formation. A lignosulphonate seawater mud was used to drill the well.
The Dogger sand from top at 3488 m to 3579 m was hydrocarbon bearing. The resistivity log indicate gas down to a massive coal layer at ca 3562 m. The true gas/water contact was not established. There was 63 m of net gas bearing sand with average porosity 21% and average water saturation 21.%. The Triassic was not a viable reservoir. The only major shows in the well were in the Dogger reservoir sands.
A total of 125.8 m core was recovered (90.7 % overall recovery) in ten cores in the interval 3512.2 to 3650.9 m. FIT fluid samples were taken at 3505 m (gas, water, mud and trace oil), 3553 m (gas, water, mud and trace oil), 3557 m (gas, mud filtrate and mud), and 3575 m (mud filtrate and mud).
The well was permanently abandoned on 19 December 1974 m as a gas/condensate discovery.
Testing
Two production tests were run.
The first was between 3601.2 and 3604.3 m, this failed to flow.
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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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