NORWAY · WELLBORES · NPDID 8990
25/2-22 S
Exploration · Appraisal · P&A · Shows · Aker BP ASA · PL 442
25/2-22 S is an appraisal exploration wellbore in the North Sea, drilled by Aker BP ASA, entered Mar 23, 2021, to 1,805 m in the Hordaland Gp.
Discovery 25/2-21 (Liatårnet) · On the map →
- 1,805
- m total depth · 1,800 m vertical
- 111
- m water depth
- Mar 23, 2021
- entered · completed Aug 24, 2021
- Hordaland Gp
- at total depth · Eocene
- 71
- m of core in 6 cores
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED AUG 24, 2023
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- DEEPSEA NORDKAPP · Semisub steel
- Drilling days
- 25
- Kelly bushing elevation
- 33 m
- Maximum inclination
- 6.19999981°
- Drilling permit
- 1807-L
- Licensing round
- TFO2006
- Plugged and abandoned
- Nov 15, 2021
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 59.88093° N, 2.46681° E
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
General
Well 25/2-22 S was drilled to appraise the 25/2-21 Liat rnet discovery in the Early Miocene Skade Formation. The primary objective was to collect fluid samples and clarify the oil-water contact. A secondary objective was to collect data for NOAKA development by extending the well to 1800 m (760 m below the Skade reservoir).
Operations and results
Appraisal well 25/2-22 S was spudded with the semi-submersible installation Deepsea Nordkapp on 23 March 2021 and drilled to TD at 1805 m (1800 m TVD) m in Eocene claystone in the Hordaland Group. The well was drilled in two phases, with top hole operations carried out in DP mode in March 2021. Following setting of the 20" casing, the well was suspended on 27 March to allow the rig to conduct exploration drilling operations in the Barents Sea. Upon return of the rig, the well was re-entered on 3 August 2021 and operations concluded on 23 August 2021. Operations proceeded without problems. The well was drilled with seawater down to 180 m, with KCl/Gel/polymer mud from 180 m to 827 m, and with Innovert oil-based mud from 827 m to TD.
The Liat rnet sands were found to be 31 m vertically thick, as prognosed, but with hydrocarbons only in the uppermost 4 meters. The OWC was defined at 1042.0 m (1039.4 m TVD) based on core analysis, wireline logs and pressure gradient interpretation. This is shallower than the ODT in the 25/2-21 and 25/2-10 S wells. Visible oil staining, fluorescence and cut was described from 1039.7 to 1045 m, else no oil shows are described in the well.
The entire caprock and reservoir was wireline logged and six cores were cut in succession fro
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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