NORWAY · WELLBORES · NPDID 2355
30/9-17
Exploration · Wildcat · Suspended · Not applicable · Norsk Hydro Produksjon AS · PL 104
30/9-17 is a wildcat exploration wellbore in the North Sea, drilled by Norsk Hydro Produksjon AS, entered Mar 3, 1995, to 1,408 m in the Hordaland Gp.
- 1,408
- m total depth · 1,408 m vertical
- 107
- m water depth
- Mar 3, 1995
- entered · completed Mar 14, 1995
- Hordaland Gp
- at total depth · Oligocene
- —
- m of core
- 58
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED MAR 14, 1997
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- TREASURE SAGA · Semisub steel
- Drilling days
- 12
- Kelly bushing elevation
- 26 m
- Maximum inclination
- 2.5°
- Drilling permit
- 806-L
- Licensing round
- 9
- Plugged and abandoned
- —
- Core samples available
- No
- Cuttings samples available
- No
- Position · ED50
- 60.29419° N, 2.82207° E
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 30/9-17 is located on the Bjørgvin Arch south of the Oseberg Sør Field and North of the 30/9-16 K Oseberg Sør Discovery. This is in the Northern North Sea. The well was drilled to clarify the Oseberg Sør development strategy. The primary objective was to establish the extent of the high-permeability Tarbert reservoir found in well 30/9-16. Secondary objectives were to test the lower Brent Group, the Cook Formation, and the Statfjord Formation.
Operations and results
Well 30/9-17 was spudded with the semi-submersible installation Treasure Saga on 3 March 1995 and drilled to 1408 m where the well was temporarily plugged back. This was due to gas and mud flow from the annulus behind 9 5/8" casing. All returns were to sea bed. The well was drilled with spud mud from top to TD.
The conventional logs run did not give conclusive information regarding the origin of the shallow gas. A CBL-log was run, and two zones (832 - 831 m, 550 - 549 m) were selected for perforation and cementing in order to kill the well. The well was killed only after cement had been squeezed into the upper perforation interval. Hence, the origin of the shallow gas was suspected to be the Utsira Formation sand or in thinner sand beds just above the Utsira Formation. No cores were cut and no wire line fluid samples were taken in the well.
The well was suspended on 13 March 1995. The well did not reach its target, and replacement well 30/9-18 was spudded the day after ca 50 m to the east-southeast.
Testing
No drill stem test was performed.
Around this wellbore
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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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