LONDON -- EnCore Oil has proved gas with East Breagh well 42/13-4. The well tested two zones at combined controlled rates of up to 10.2 MMcf/d. The final rate was held for a period of twelve hours prior to shutting in for pressure build up. The stabilized test was completed on a 32/64-in. (1.2-cm) choke setting at a flowing wellhead pressure of circa 1,630 psi, the company says.
A lower sand was perforated from 7,635 ft (2,327 m) measured depth (MD) to 7,746 ft (2,361 m) MD and tested separately at rates up to 1.6 MMcf/d. This is the first time such a lower unit has been tested individually and in addition to proving gas, it provides additional upside and potential for stimulation in future wells, the company says.
"The next Breagh well will help us better define how the reservoir will perform from a horizontal well, giving us a better understanding of development options, production profiles, and recoverability," says Alan Booth, EnCore's CEO. Incorporation of the well results into EnCore's current mapping suggests that this accumulation has the potential to become one of the larger discoveries of recent years in the southern North Sea."