NORWAY · WELLBORES · NPDID 9277
25/8-20 B
Exploration · Wildcat · P&A · Oil/gas · Vår Energi AS · Balder · PL 027
25/8-20 B is a wildcat exploration wellbore in the North Sea, drilled by Vår Energi AS, entered May 11, 2021, to 2,698 m in the Skagerrak Fm.
Discovery 25/8-20 B · On the map →
- 2,698
- m total depth · 2,387 m vertical
- 129
- m water depth
- May 11, 2021
- entered · completed May 28, 2021
- Skagerrak Fm
- at total depth · Late Triassic
- 34.5
- m of core in 1 core
- 93
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED NOV 4, 2026 · RELEASED MAY 28, 2023
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- SCARABEO 8 · Semisub steel
- Drilling days
- 18
- Kelly bushing elevation
- 34 m
- Maximum inclination
- 42.29999924°
- Drilling permit
- 1852-L
- Licensing round
- 2-A
- Plugged and abandoned
- May 28, 2021
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 59.29093° N, 2.37421° E
- Hydrocarbons in
- Balder Fm · Eocene
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 25/8-20 S Prince with side-track 25/8-20 B King is a dual branch exploration well that tested several independent targets. The dual well is situated north of the Balder Field on the Utsira High in the North Sea. The primary objective of the side-track 25/8-20 B King was to test the minimum economic hydrocarbon volumes in Eocene/Paleogene injectites. The Skagerrak Formation was secondary objective.
Operations and results
Wildcat well 25/8-20 S was kicked off from a milled window in the 13 3/8" casing from 1030 to 1038 m in primary well bore 25/8-20 S on 11 May 2021. The well was drilled with the semi-submersible installation Scarabeo 8 to TD at 2698 m (2386.5 m TVD) in the Late Triassic Skagerrak Formation. The well path above kick-off is vertical. From kick off the well path deviation is between ca 30 and 42 . Drilling proceeded without significant problems. The well was drilled with Rheguard Prime oil-based mud from kick-off to TD.
One-meter-thick gas bearing injectite sands were penetrated at 1833 m and 1849 m, while an oil-filled injectite sand was penetrated from 1866 to 1875 m. The gas-oil contact in the injectite complex was estimated at ca 1868 m (1761 m TVD) m, while the Free Water Level was estimated at ca 1934 m (1815 m TVD). The sands had excellent petrophysical properties. The Skagerrak Formation in 25/8-20 B well was mainly water bearing with some hydrocarbon indications at 2608.8 m / 2320.3.3 m TVD. Good quality reservoir units in the 25/8-20 B well were encountered below the OWC of Skagerrak Discovery in Prince 25/8-20 S well.
Strong oil shows were described on the cored injectite sand in the Balder Formation, otherwise no shows are described from 25/8
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/9277, documented in the API reference.