NORWAY · WELLBORES · NPDID 5335
31/5-4 AR2
Exploration · Appraisal · P&A · Oil/gas · Statoil ASA (old) · Troll · PL 085
31/5-4 AR2 is an appraisal exploration wellbore in the North Sea, drilled by Statoil ASA (old), entered Aug 24, 2003, to 2,610 m in the Sognefjord Fm.
Discovery 31/2-1 (Troll Vest) · On the map →
- 2,610
- m total depth · 1,586 m vertical
- 316
- m water depth
- Aug 24, 2003
- entered · completed Sep 5, 2003
- Sognefjord Fm
- at total depth · Late Jurassic
- —
- m of core
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED SEP 5, 2005
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- BIDEFORD DOLPHIN · Semisub steel
- Drilling days
- 13
- Kelly bushing elevation
- 31 m
- Maximum inclination
- 0°
- Drilling permit
- 656-L4
- Licensing round
- Awarded additionally to round 7
- Plugged and abandoned
- Sep 5, 2003
- Core samples available
- No
- Cuttings samples available
- No
- Position · ED50
- 60.72116° N, 3.56196° E
- Hydrocarbons in
- Sognefjord Fm · Late Jurassic
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 31/5-4 AR2 is a re-entry of the horizontal side track well 31/5-4 A in the Troll West oil and gas province. The objective was plugging and permanent abandonment
Operations and results
Well bore 31/5-4 A was re-entered (31/5-4 AR) with the semi-submersible installation Bideford Dolphin 24 August 2003. The well was plugged and permanently abandoned on 5 September 2003.
Testing
No drill stem test was performed
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.
Developers: this page as JSON is GET /v1/data/norway/wells/5335, documented in the API reference.