LONDON, UK --Sterling Resources has started an appraisal well on the Breagh gas discovery in the UK southern North Sea, using the jackup Ensco 85.
The original discovery well in 1997 encountered net pay of around 68 ft (21 m) within the Lower Carboniferous Scremerston sandstone formation. But it tested at sub-commercial flow-rates, assumed at the time to be due to formation damage during drilling and completion operations.
The current well has been designed to achieve a test flow rate representative of the undamaged formation to help the partners determine the field's commerciality. If successful, the partners may return next year to drill further upside potential east of Breagh.