NORWAY · WELLBORES · NPDID 384
30/7-1
Exploration · Wildcat · Junked · Not applicable · Norsk Hydro Produksjon AS · PL 040
30/7-1 is a wildcat exploration wellbore in the North Sea, drilled by Norsk Hydro Produksjon AS, entered Jul 5, 1975, to 1,007 m in the Utsira Fm.
- 1,007
- m total depth
- 109
- m water depth
- Jul 5, 1975
- entered · completed Aug 5, 1975
- Utsira Fm
- at total depth · Miocene
- —
- m of core
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED AUG 5, 1977
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- POLYGLOMAR DRILLER · Semisub steel
- Drilling days
- 32
- Kelly bushing elevation
- 22.9 m
- Maximum inclination
- 0.75°
- Drilling permit
- 131-L
- Licensing round
- 3
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 60.49100° N, 2.02625° E
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 30/7-1 was drilled in the eastern part of the East Shetland Basin in the North Sea. The well location is due west of the Oseberg Field and ca 3.5 km from the UK Border. The primary objective was to investigate structural closure at Eocene and Paleocene with possible sand development.
Operations and results
Wildcat well 30/7-1 was drilled with the semi-submersible installation Polyglomar Driller. Polyglomar Driller was accepted in Verdal on June 28, and left for its first location on June 30, 1975 at 1500 hrs. The rig was on location ready to spud on July 4, after a period of 4 days for movement to location and for anchoring. During the drilling of the 36" hole the drilling template tilted and the entire assembly had to be picked up. The rig was moved 50 ft due east and a new spudding attempt was made on July 5, 1975. Drilling then proceeded without significant problems to 1007 m, which became TD of the well. While pulling out of the hole to set the 13 3/8" casing the pipe stuck in the hole with the bit at 420 m. Numerous attempts to free the pipe were unsuccessful and it was decided to abandon the well. The well was drilled with seawater/sweeps and gel from surface to TD.
The penetrated sediments are interpreted as recent to Miocene in age.
No logs were run in the well. No cores were cut and no wire line fluid samples were taken.
During abandonment the drilling template was found to be stuck and the attempts to recover it were unsuccessful. Divers were jumped to inspect the drilling template and they reported the template had sunk 10 ft below the sea bed. Permission was obtained to fill the cavity above the ba
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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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