NORWAY · WELLBORES · NPDID 516
15/9-12 R
Exploration · Appraisal · P&A · Gas/condensate · Den norske stats oljeselskap a.s · Sleipner Vest · PL 046
15/9-12 R is an appraisal exploration wellbore in the North Sea, drilled by Den norske stats oljeselskap a.s, entered Mar 29, 1982, to 3,740 m in the Sleipner Fm.
Discovery 15/6-3 Sleipner Vest · On the map →
- 3,740
- m total depth · 3,739 m vertical
- 110
- m water depth
- Mar 29, 1982
- entered · completed Apr 27, 1982
- Sleipner Fm
- at total depth · Middle Jurassic
- —
- m of core
- 124
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED NOV 4, 2026 · RELEASED APR 27, 1984
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- DEEPSEA SAGA · Semisub steel
- Drilling days
- 33
- Kelly bushing elevation
- 25 m
- Maximum inclination
- 4.19999981°
- Drilling permit
- 309-L2
- Licensing round
- 3
- Plugged and abandoned
- Apr 27, 1982
- Core samples available
- No
- Cuttings samples available
- No
- Position · ED50
- 58.45644° N, 1.71778° E
- Hydrocarbons in
- Hugin Fm · Middle Jurassic
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 15/9-12 R is a re-entry of well 15/9-12, which was drilled as an appraisal well on the saddle area between the Alpha and Beta structures on the Sleipner Vest field in the North Sea. Due to technical problems with the rig the final testing was not done in the primary well. The purpose of the re-entry was testing and plugging.
Operations and results
Well 15/9-12 was re-entered on 29 March 1982 with the semi-submersible installation Deepsea Saga.
After testing the well was permanently abandoned on 27 April 1982 as a gas-condensate appraisal well.
Testing
Three Drill Stem Tests were conducted. DST 1A tested the interval 3585 m 3595 m. This test was aborted due to bad weather after flowing the well for 150 minutes. The interval was retested a few days later in DST 1B.
DST 1B flowed 252 Sm3 condensate and 771600 Sm3 gas /day through a 64/64" choke. The condensate/gas ratio (CGR) was 3056 Sm3/Sm3, the condensate density was 0.793 g/cm3, and the gas gravity was 0.772 (air = 1) with ca 8% CO2. The DST temperature was 121 deg C at gauge depth 3561.8 m.
DST 2 tested the interval 3512 m to 3522 m. It flowed 231 Sm3 condensate and 808500 Sm3 gas /day through a 64/64" choke. The CGR was 3495 Sm3/Sm3, the condensate density was 0.793 g/cm3, and the gas gravity was 0.765 (air = 1) with ca 7% CO2. The DST temperature was 119 deg C at gauge depth 3499 m.
Eight gas samples and six condensate samples were taken at the separator during DST 1. 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.
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