East Breagh may be one of the largest discoveries in Southern North Sea
EnCore Oil plc (LSE: EO.) is pleased to announce that well testing operations on the East Breagh well 42/13-4 (‘the well’) have been completed.
The well tested two zones at combined controlled rates of up to 10.2 million standard cubic feet per day (‘mmscfd’). The final rate was held for a period of twelve hours prior to shutting in for pressure build up. The stabilised test was completed on a 32/64 inch choke setting at a flowing wellhead pressure of circa 1,630 psi.
A lower sand was perforated from 7,635 feet measured depth (‘md’) to 7,746 feet md and tested separately at rates up to 1.6 mmscfd. 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 upper sands were then perforated from 7,490 feet md to 7,560 feet md and the combined well test reported above was carried out.
EnCore has a 15 per cent. interest in the licence and Sterling Resources Limited is the operator.
Alan Booth, EnCore's Chief Executive Officer, commented:
“The results of this well suggest that the Breagh field is likely to be a single significant gas accumulation. Both wells 42/13-3 and 42/13-4 have demonstrated reservoir deliverability from vertical well bores and the latter well has also demonstrated productivity from a lower reservoir.
“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. 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.”
Peter Williams B.Sc. (Hons.) in Physics and EnCore’s Group Technical Manager, who has over 35 years' engineering experience in the oil exploration and production industry, has reviewed and approved the technical information contained in this announcement.
