
Aker BP ASA increased the projected size of a recent North Sea discovery following results of an apprasial well. The operator and its license partners are now considering profitability and whether the discovery could be tied back to Aker BP-operated Symra field.
Well 16/1-EA-4 H was drilled by the Deep Sea Nordkapp drilling rig in 116 m of water from the subsea template on Symra field as a horizontal appraisal wellbore about 200 km west of Stavanger. It was the 11th exploration well in production licence 167, which contains the Verdandi and Lillefix discoveries.
The well was drilled to 1,864 m TVD subsea. It was terminated in the Heimdal formation from the Palaeocene. The objective was to prove reservoir rocks from the Palaeocene in the Heimdal formation, as well as to confirm the extent of the reservoir and presumed oil-water contact.
The well encountered a 14-m gas column and a 44-m oil column in sandstone layers in the Heimdal formation. The gas-oil contact was encountered at 1,776 m subsea. A total of 1,515 reservoir m were drilled horizontally through the oil zone in the Heimdal formation with moderate reservoir quality.
Data acquisition has been carried out, which included obtaining fluid samples and pressure points. The well has been permanently plugged.
Results from the appraisal well increase the projected discovery size. Prior to drilling, the companies presumed that the discovery was 0.6–1.9 million std cu m oil equivalent (4-12 million bbl). Preliminary calculations after drilling amount to 1.3–2.4 million std cu m oil equivalent (8-15 million bbl).
Aker BP is operator at PL 167 (50%) with partners Equinor Energy AS (30%) and DNO Norge AS (20%).




















