NORWAY · WELLBORES · NPDID 4593

31/5-5 R

Exploration · Appraisal · P&A · Oil/gas · Norsk Hydro Produksjon AS · Troll · PL 085

31/5-5 R is an appraisal exploration wellbore in the North Sea, drilled by Norsk Hydro Produksjon AS, entered Jul 18, 2002, to 1,936.5 m in the Krossfjord Fm.

Discovery 31/2-1 (Troll Vest) · On the map →

1,936.5
m total depth · 1,936.5 m vertical
319
m water depth
Jul 18, 2002
entered · completed Jul 27, 2002
Krossfjord Fm
at total depth · Middle Jurassic
—
m of core
60
°C bottom-hole temperature

SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED JUL 27, 2004

On file for this wellbore

What the Directorate holds from this wellbore. Each opens the section that lists it.

Drilling

Drilling facility
WEST VENTURE · Semisub steel
Drilling days
10
Kelly bushing elevation
35.5 m
Maximum inclination
1.20000005°
Drilling permit
751-L2
Licensing round
Awarded additionally to round 7
Plugged and abandoned
Jul 27, 2002
Core samples available
No
Cuttings samples available
No
Position · ED50
60.69713° N, 3.48576° E
Hydrocarbons in
Sognefjord Fm · Late Jurassic

Well history

WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE

General

The objective of re-entry 31/5-5 R was permanent plugging and abandonment.

Operations

Previously drilled appraisal well 31/5-5 R on Troll West (completed 11 February 1993), was re-entered with the semi-submersible drilling unit West Venture for permanent plugging and abandonment. Operations took place in the period July 18 - July 27 2002.

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/4593, documented in the API reference.