NORWAY · WELLBORES · NPDID 125
33/9-3
Exploration · Appraisal · P&A · Oil · Mobil Exploration Norway INC · Statfjord · PL 037
33/9-3 is an appraisal exploration wellbore in the North Sea, drilled by Mobil Exploration Norway INC, entered Sep 15, 1974, to 2,992 m in the Statfjord Gp.
Discovery 33/12-1 Statfjord · On the map →
- 2,992
- m total depth
- 146
- m water depth
- Sep 15, 1974
- entered · completed Nov 14, 1974
- Statfjord Gp
- at total depth · Late Triassic
- 154
- ft of core in 13 cores
- 86
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED NOV 4, 2026 · RELEASED NOV 14, 1976
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
- 61
- Kelly bushing elevation
- 25 m
- Maximum inclination
- 0°
- Drilling permit
- 117-L
- Licensing round
- Awarded additionally to round 2-A
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 61.29865° N, 1.89443° E
- Hydrocarbons in
- Brent Gp · Middle Jurassic
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 33/9-3 was drilled on the Statfjord structure on Tampen Spur in the northern North Sea, as a replacement well for the junk well 33/9-2. The primary objective was to provide seismic velocity control for detailed field mapping and to provide additional reservoir data for the Statfjord Field development.
Operations and results
Wildcat well 33/9-3 was spudded with the semi-submersible installation Norskald on 15 September 1974 and drilled to TD at 2992 m in Late Triassic sediments of the Statfjord Group.
The target reservoir Brent Group was encountered at 2411 m. It contained oil all through down to top Dunlin Group at 2599 m. The base of the reservoir was encountered above the oil water contact. The reservoir quality was excellent with average measured core porosity of 29% and measured permeabilities up to 7.7 Darcy.
A total of 152 m core was recovered in 13 cores from the interval 2422.9 m to 2622.2 m in the reservoir section. Total core recovery was 76.1%. Six FIT fluid samples were taken at 2419 m (35.4 °API oil and mud filtrate), 2455 m (38.4 °API oil and mud filtrate), 2422 m (36.4 °API oil, gas and mud), 2423 m (36.6 °API oil and gas), 2534 m (35.6 °API oil and mud filtrate), and 2595 m (water, mud filtrate and trace oil).
The well was permanently abandoned on 14 November as an oil appraisal well.
Testing
A DST over the interval 2479 to 2481 m did not produce fluids due to tool failure.
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/125, documented in the API reference.