NORWAY · WELLBORES · NPDID 4424
34/8-12 S
Exploration · Wildcat · P&A · Oil · Norsk Hydro Produksjon AS · Gimle · PL 120
34/8-12 S is a wildcat exploration wellbore in the North Sea, drilled by Norsk Hydro Produksjon AS, entered Nov 6, 2001, to 3,347 m in the Lunde Fm.
Discovery 34/8-12 S · On the map →
- 3,347
- m total depth · 3,183.5 m vertical
- 273
- m water depth
- Nov 6, 2001
- entered · completed Dec 9, 2001
- Lunde Fm
- at total depth · Late Triassic
- —
- m of core
- 125
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED NOV 4, 2026 · RELEASED DEC 9, 2003
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- TRANSOCEAN ARCTIC · Semisub steel
- Drilling days
- 34
- Kelly bushing elevation
- 24 m
- Maximum inclination
- 46.09999847°
- Drilling permit
- 1016-L
- Licensing round
- 10-A
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 61.26803° N, 2.34221° E
- Hydrocarbons in
- Brent Gp · Middle Jurassic
- Hydrocarbons in
- Amundsen Fm · Early Jurassic
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 34/8-12 S was drilled on the "B prospect" ca one km south of the Visund Field on Tampen Spur in the North Sea. The main objective of the well was to explore the hydrocarbon potential in the Statfjord/Amundsen Formations. A secondary target was to explore the hydrocarbon potential in the underlying Lunde Formation.
Operations and results
Wildcat well 34/8-12 S was spudded with the semi-submersible installation Transocean Arctic on 6 November 2001 and drilled to TD at 3347 m (3184 m TVD) in the Late Triassic Lunde Formation. Total loss of mud occurred at 2201 m and the well was plugged back and technically sidetracked from 1910 m (34/8-12 S T2). The well was drilled with seawater and hi-vis pills down to 1547 m and with Versavert oil based mud from 1547 m to TD.
Top Viking Group was penetrated at 3048 m and consisted of a thin section of Draupne and Heather Formation shales. The Middle Jurassic Brent Group, which was believed to be absent in the well location, was encountered at 3055 m (2891.6 m TVD). It was oil/condensate-filled with a down-to contact at top Dunlin Group at 3081 m (2917 m TVD). The Amundsen Formation was oil-filled from top at 3158 m (2994.6 m TVD) to a down-to contact at 3177.3 m (3014 m TVD). Top of the Statfjord Group came in at 3184.5 m (3021.1 m TVD). The Statfjord and Lunde Formations were water bearing with a pressure gradient indicating that the down-to contact in Amundsen Formation is close to the actual OWC. No shows were described outside of the oil-bearing sections.
No cores were cut in the well. MDT fluid samples were taken in the Brent Group at 3056 m (oil and gas), 3067.5 m (oil and gas), and in the Amundsen Formation at 3159.6 m (o
Around this wellbore
This wellbore on Sodir FactPages → · Press release →
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/4424, documented in the API reference.