NORWAY · WELLBORES · NPDID 8491
25/10-16 A
Exploration · Appraisal · P&A · Gas · Aker BP ASA · Hanz · PL 028 B
25/10-16 A is an appraisal exploration wellbore in the North Sea, drilled by Aker BP ASA, entered Jul 31, 2018, to 3,704 m in the Skagerrak Fm.
Discovery 25/10-8 Hanz · On the map →
- 3,704
- m total depth · 2,592 m vertical
- 116.5
- m water depth
- Jul 31, 2018
- entered · completed Aug 9, 2018
- Skagerrak Fm
- at total depth · Late Triassic
- —
- m of core
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED AUG 9, 2020
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- MAERSK INTREPID · Jack-up 3 legs
- Drilling days
- 10
- Kelly bushing elevation
- 55 m
- Maximum inclination
- 60.29999924°
- Drilling permit
- 1707-L
- Licensing round
- 2-A
- Plugged and abandoned
- Aug 9, 2018
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 59.03698° N, 2.22816° E
- Hydrocarbons in
- Hugin Fm · Middle Jurassic
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 25/10-16 A is a geological side-track to 25/10-16 S. It was drilled on the 25/10-8 Hanz discovery on the Gudrun Terrace in the North Sea. The primary objective was to test the hydrocarbon potential in Intra-Draupne Formation sandstones in the southern segment of the Hanz structure.
Operations and results
Appraisal well 25/10-16 A was kicked off at 565 m in mainwell 25/10-16 S on 31 July 2018. It was drilled with the jack-up installation Mærsk Intrepid to TD at 3704 m (2592 m TVD) m in the Late Triassic Skagerrak Formation. Operations proceeded without significant problems. The well was drilled with RheGuard oil-based mud from kick-off to TD.
very little sandstone was found in the Draupne Formation. Where sand was present, it showed poor reservoir quality and a substantial degree of cementation. Top Hugin Formation was penetrated at 3613 m. The reservoir properties in Hugin was excellent, and it held a 13 m gas column. Pressure points in the Hugin Formation confirmed a gas-water contact at 3626 m (2520 m TVD) and ca 8 bar pressure depletion compared to the 25/10-8 well.
No cores were cut. No fluid sample was taken.
The well was permanently abandoned on 9 August 2018 as a gas appraisal well.
Testing
No drill stem test was performed.
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.
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