2/1-17 S is a wildcat exploration wellbore in the North Sea, drilled by Aker BP ASA, entered Aug 30, 2019, to 4,390 m in the Tyne Gp.
Discovery 2/1-17 S (Kark) · On the map →
- 4,390
- m total depth · 4,379 m vertical
- 65.5
- m water depth
- Aug 30, 2019
- entered · completed Nov 8, 2019
- Tyne Gp
- at total depth · Late Jurassic
- —
- m of core
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED NOV 3, 2020
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- MAERSK INTERCEPTOR · Jack-up 3 legs
- Drilling days
- 71
- Kelly bushing elevation
- 56.4 m
- Maximum inclination
- 0°
- Drilling permit
- 1780-L
- Licensing round
- 1-A
- Plugged and abandoned
- Nov 8, 2019
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 56.81837° N, 3.13876° E
- Hydrocarbons in
- Eldfisk Fm · Jurassic
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 2/1-17 S was drilled to test the Kark prospect on the southern part of the Cod Terrace in the North Sea. The primary objective was to test the hydrocarbon potential of the informal Gyda Mbr of the Ula Formation. The potential of a deeper Ula Formation sand and the Eldfisk, Bryne and Skagerrak formations were secondary objectives.
Operations and results
A 9 7/8" pilot hole was drilled from seafloor to 591 m. No shallow gas was detected, and pore pressure was regarded as being hydrostatic at 1.03 sge.
Wildcat well 2/1-17 S was spudded with the jack-up installation Maersk Interceptor on 30 August 2019. Slow penetration rates in the 8 1/2" HPHT interval resulted in the decision to establish final TD at 4390 m (4379 m TVD) m, 222 m below the base of the Eldfisk Formation, within Late Jurassic mudstones of the Farsund Formation. The 8 1/2" bit drilled only 424 m in 41 days rig time. Hence, the secondary targets Bryne and Skagerrak formations were not reached.
The well was drilled with seawater and hi-vis pills down to 591 m, with Rheguard Prime oil-based mud from 591 m to 3966 m and with WARP SB oil-based mud from 3966 m to TD.
No Ula Formation sands were encountered in the well. A thicker than expected upper Jurassic Farsund mudstone package was encountered over the interval where the Ula sands had been expected. The Eldfisk Formation was encountered close to the prognosed depth and was hydrocarbon bearing with reasonable reservoir properties. However, the unit was only 5 m thick and is regarded as sub-commercial. High gas and resistivity values were recorded over
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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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