NORWAY · WELLBORES · NPDID 6560
24/9-10 A
Exploration · Appraisal · P&A · Oil · Marathon Petroleum Norge AS · PL 340 BS
24/9-10 A is an appraisal exploration wellbore in the North Sea, drilled by Marathon Petroleum Norge AS, entered Feb 3, 2011, to 2,900 m in the Lista Fm.
Discovery 24/9-10 S (Caterpillar) · On the map →
- 2,900
- m total depth · 2,138 m vertical
- 118
- m water depth
- Feb 3, 2011
- entered · completed Feb 20, 2011
- Lista Fm
- at total depth · Late Paleocene
- —
- m of core
- —
- °C bottom-hole temperature
SODIR FACTPAGES · RECORD UPDATED FEB 20, 2026 · RELEASED FEB 20, 2013
On file for this wellbore
What the Directorate holds from this wellbore. Each opens the section that lists it.
Drilling
- Drilling facility
- TRANSOCEAN WINNER · Semisub steel
- Drilling days
- 18
- Kelly bushing elevation
- 26 m
- Maximum inclination
- 73.90000153°
- Drilling permit
- 1345-L
- Licensing round
- TFO2009
- Plugged and abandoned
- —
- Core samples available
- Yes
- Cuttings samples available
- Yes
- Position · ED50
- 59.27631° N, 1.92670° E
- Hydrocarbons in
- Hermod Fm · Late Paleocene
Well history
WRITTEN BY THE NORWEGIAN OFFSHORE DIRECTORATE
Wellbore history
General
Well 24/9-10 A is a geologic sidetrack to well 24/9-10 S on the Caterpillar prospect ca 7.5 km south-southeast of the Bøyla field in the South Viking Graben. The primary well bore 24/9-10 S found oil in the Late Paleocene Hermod Formation. The sidetrack 24/9-10 A was drilled to further delineate and evaluate the economic resource potential in this discovery.
Operations and results
Well 24/9-10 A was kicked off from the 24/9-10 S wellbore at 1408 m in undifferentiated Hordaland Group on 3 February 2011. The well was drilled with the semi-submersible installation Transocean Winner to TD at 2900 m (2138 m TVD). No significant problems were encountered in the operations. The well was drilled with Versatec OBM from kick-off to TD.
The Sele Formation had no reservoir quality intervals; it was predominantly claystone, calcareous in parts. The Hermod Formation came in at 2799 (2064 m TVD) and had 36.5 m (MD) of reservoir quality sands, with predominantly fine occasionally medium quartz aggregate, some calcite cemented stringers and non net shale beds. Average porosity in the reservoir of 24.9% was determined from the density log. An OWC was interpreted at 2850 m (2114 m TVD). A total of 31.9 m (15.3 m TVD) of movable hydrocarbons with an average net water saturation of 33.2% was interpreted within the Hermod Formation. The oil based mud masked any true oil shows on cuttings from the well.
No cores were cut and no wire line fluid samples were taken.
The well was permanently abandoned on 20 February 2011 as an oil appraisal
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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