NORWAY · WELLBORES · NPDID 1727
1/9-4 R
Exploration · Wildcat · P&A · Gas/condensate · Den norske stats oljeselskap a.s · Tommeliten Gamma · PL 044
1/9-4 R is a wildcat exploration wellbore in the North Sea, drilled by Den norske stats oljeselskap a.s, entered Apr 21, 1991, to 3,710 m in the Zechstein Gp.
Discovery 1/9-4 Tommeliten Gamma · On the map →
- 3,710
- m total depth
- 75
- m water depth
- Apr 21, 1991
- entered · completed Apr 26, 1991
- Zechstein Gp
- at total depth · Late Permian
- —
- m of core
- 150
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED APR 26, 1993
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- ROSS RIG (2) · Semisub steel
- Drilling days
- 6
- Kelly bushing elevation
- 25 m
- Maximum inclination
- 7.5°
- Drilling permit
- 182-L2
- Licensing round
- 3
- Plugged and abandoned
- Apr 26, 1991
- Core samples available
- No
- Cuttings samples available
- No
- Position · ED50
- 56.48438° N, 2.93341° E
- Hydrocarbons in
- Ekofisk Fm · Paleocene
- Hydrocarbons in
- Tor Fm · Late Cretaceous
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 1/9-4 R is a re-entry of well 1/9-4 in the Central Graben of the North Sea. The purpose of the re-entry was permanent abandonment.
Operations and results
Well was entered with the semi-submersible installation Ross Rig on 21 April 1991.
The well head was removed from the sea floor.
The well was permanently abandoned on 26 April.
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/1727, documented in the API reference.