NORWAY · WELLBORES · NPDID 3350

31/2-M-42

Development · Observation · P&A · Not applicable · Norsk Hydro Produksjon AS · Troll · PL 054

31/2-M-42 is an observation development wellbore in the North Sea, drilled by Norsk Hydro Produksjon AS, entered Mar 15, 1998, to 1,855 m.

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

1,855
m total depth · 1,853.7 m vertical
350
m water depth
Mar 15, 1998
entered · completed Apr 9, 1998
—
at total depth
132.6
m of core in 10 cores
—
°C bottom-hole temperature

SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED APR 9, 2000

On file for this wellbore

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

Drilling

Drilling facility
WEST VANGUARD · Semisub steel
Drilling days
26
Kelly bushing elevation
22 m
Maximum inclination
—°
Drilling permit
1428-P
Licensing round
4
Plugged and abandoned
Apr 10, 1998
Core samples available
Yes
Cuttings samples available
Yes
Position · ED50
60.95427° N, 3.62848° E

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/3350, documented in the API reference.