NORWAY · WELLBORES · NPDID 388
30/7-5
Exploration · Wildcat · Junked · Not applicable · Norsk Hydro Produksjon AS · PL 040
30/7-5 is a wildcat exploration wellbore in the North Sea, drilled by Norsk Hydro Produksjon AS, entered Feb 5, 1977, to 805 m in the Nordland Gp.
- 805
- m total depth
- 117
- m water depth
- Feb 5, 1977
- entered · completed Feb 13, 1977
- Nordland Gp
- at total depth · Miocene
- —
- m of core
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED FEB 13, 1979
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
- 9
- Kelly bushing elevation
- 24 m
- Maximum inclination
- 1.20000005°
- Drilling permit
- 172-L
- Licensing round
- 3
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 60.49172° N, 2.05761° E
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 30/7-5 was a replacement of the well 30/7-4 which was lost due to "twist off" of the drill pipe. The well is located 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 2.5 km from the UK Border. The main objective of the well was to test Middle and Early Jurassic sandstones (Brent Group and Statfjord Formation) Secondary objectives were possible lower Cretaceous carbonate development, and possible Late Jurassic sandstones.
Operations and results
The semi-submersible installation Polyglomar Drilling was skidded over from the junked 30/7-4 well to the position for 30/7-5 by regulating the length of the anchor chains. Well 30/7-5 was spudded with on 5 February 1977 and drilled the 26" section to TD at 805 m in Miocene sediments. When running the 20" casing, the string parted and 18 joints of casing were left in the hole. Attempts to catch the fish failed and the well was given up. The well was drilled with seawater and gel.
No cores were cut, no logs were run, and no wire line fluid samples were taken.
The well was permanently abandoned on 13 February 1977 as a junk well, and the rig was prepared for spudding replacement well 30/7-6.
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.
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