25/2-18 C

Exploration · Appraisal · P&A · Oil · Aker BP ASA · Hugin Satellitter · PL 442

25/2-18 C is an appraisal exploration wellbore in the North Sea, drilled by Aker BP ASA, entered Oct 31, 2016, to 4,369 m in the Drake Fm.

Discovery 25/2-18 S (Langfjellet) · On the map →

4,369: m total depth · 4,029 m vertical
121: m water depth
Oct 31, 2016: entered · completed Nov 17, 2016
Drake Fm: at total depth · Early Jurassic
—: m of core
133: °C bottom-hole temperature

SODIR FACTPAGES · RECORD UPDATED NOV 4, 2026 · RELEASED NOV 17, 2018

On file for this wellbore

What the Directorate holds from this wellbore. Each opens the section that lists it.

Drilling

Drilling facility: MAERSK INTERCEPTOR · Jack-up 3 legs
Drilling days: 18
Kelly bushing elevation: 55 m
Maximum inclination: 36.79999924°
Drilling permit: 1642-L
Licensing round: TFO2006
Plugged and abandoned: —
Core samples available: Yes
Cuttings samples available: Yes
Position · ED50: 59.82503° N, 2.63169° E
Hydrocarbons in: Hugin Fm · Middle Jurassic
Hydrocarbons in: Sleipner Fm · Early Jurassic

Well history

WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE

Wellbore history

Well 25/2-18 C is the third geological sidetrack to well 25/2-10 S, located on the Bjørgvin Arch, four kilometers south of the 25/2-10 S (Frigg Gamma Delta) oil/gas discovery and eight kilometers north of the Frøy field in the North Sea. The 25/2-18 S well and the first sidetrack proved oil in the Middle Jurassic Hugin Formation, the Langfjellet prospect. The second sidetrack, 25/2-18 B was dry. The sidetrack 25/2-18 C was drilled to the west of the main wellbore, located in a separate segment of the Langfjellet structure. Objective for sidetrack 25/2-18 C was to test the hydrocarbon potential in Hugin and Sleipner Formations.

Operations and results

Appraisal well 25/2-18 C was kicked off at 1575 m in the main well bore on 31 October 2016. It was drilled with the jack-up installation Mærsk Interceptor to TD at 4369 m (4029 m TVD) m in the Early Jurassic Drake Formation. No significant problem was encountered in the operations. The well was drilled with Versatec oil based mud from kick-off to TD.

Top Hugin Formation was encountered at 3887 m (3563.4 m TVD) and top Sleipner Formation at 4029 m (3700.4 m TVD). A 137 m TVD gross oil column within in the Hugin Formation was proven in the well with an oil-down-to contact at 4028 m (3699 m TVD). In addition, a condensate column was encountered within the Sleipner Formation with a condensate-water contact 4184.6 m (3850.8 m TVD). This gives gross column of 16 m within the Sleipner Formation. There were no reliable oil show above the OBM in the well.

No conventional cores were cut. MDT fluid samples were taken at 3891.54 m (oil), 3891.55 m (oi

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/8061, documented in the API reference.