NORWAY · WELLBORES · NPDID 841

33/12-3

Exploration · Appraisal · Junked · Not applicable · Mobil Exploration Norway INC · Statfjord · PL 037

2 documents: reports, logs, and plots →

33/12-3 is an appraisal exploration wellbore in the North Sea, drilled by Mobil Exploration Norway INC, entered Apr 23, 1975, to 1,725 m in the Balder Fm.

Discovery 33/12-1 Statfjord · On the map →

1,725
m total depth · 1,725 m vertical
146
m water depth
Apr 23, 1975
entered · completed May 16, 1975
Balder Fm
at total depth · Paleocene
—
m of core
—
°C bottom-hole temperature

SODIR FACTPAGES · RECORD UPDATED NOV 4, 2026 · RELEASED MAY 16, 1977

On file for this wellbore

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

Drilling

Drilling facility
NORSKALD · Semisub steel
Drilling days
24
Kelly bushing elevation
25 m
Maximum inclination
0°
Drilling permit
125-L
Licensing round
Awarded additionally to round 2-A
Plugged and abandoned
—
Core samples available
Yes
Cuttings samples available
No
Position · ED50
61.23879° N, 1.89050° E

Well history

WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE

General

Well 33/12-3 was drilled on the Statfjord structure in the Tampen Spur area. It was designed to test the erosional escarpment on the east flank of the structure for possible trapping of hydrocarbons in an area downfaulted to the Statfjord Field pay section to the west. Primary objectives of the well were the Early Jurassic Statfjord Group sands and possible Middle Jurassic Brent Formation sands.

Operations and results

Appraisal well 33/12-3 was spudded with the semi-submersible installation Nordskald on 23 April 1975 and drilled to 1725 m in the Paleocene Balder Formation. At this depth irreparable damage to the wellhead led to the decision to abandon the well.

No cores were cut and no wire line fluid samples were taken.

The well was permanently abandoned on 16 May 1975 as junk well. The rig was moved 30 m and replacement well 33/12-4 was initiated.

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.

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