DUBLIN, Ireland --Island Oil & Gas is considering a three-field development offshore southern Ireland, following a successful appraisal well on its Schull gas discovery.
The well, drilled by thePetrolia, tested 21 MMcf/d of dry gas through a 72/64-in. restricted choke, with absolute open flow potential of 40 MMcf/d. Gas flowed from Upper Wealden reservoirs between a measured depth of 2,332 ft and 2,599 ft (710 m and 792 m) below the rotary table.
Island adds that the gross gas column of 292 ft (89 m) was much greater than the prognosis pre-drilling, and that further reservoirs discovered by the well offer potential in offset structures on the Schull license.
The results suggest Schull could warrant a standalone field development. However, Island is commissioning a commercial and engineering study to investigate an optimum scenario tying in Schull with the nearby Old Head and West Seven Heads gas fields. This could involve using one of them as a gas storage facility to allow for increased gas production during winter, when gas prices are normally higher.