Lansdowne Oil & Gas has completed the interpretation of the 3D seismic acquisition carried out over its prospects in the North Celtic Sea offshore Ireland last year.
According to the company, the new data over the Amergin Prospect in SEL5/08, part-blocks 47/25, 48/21, and 48/22, confirms the presence of a robust rotated tilted fault block with petroleum potential.
The primary targets are for oil in the Cretaceous Basal Wealden sands (the reservoir interval currently being appraised in the Barryroe 48/24-10Z well, some 40km to the east) and the Upper Jurassic sands that are oil-bearing in the Helvick field 120km to the north-east.
Two further targets have been identified for oil in shallower Cretaceous Wealden sand sequences that are present in nearby wells.
Following the interpretation of the 3D seismic, internal pre-drill probabilistic estimates of oil in place in Amergin’s primary targets in P50 unrisked case are 472million barrels, with potential ultimate recoverable resources estimated internally as 151million.
This contrasts with the 212million and 62million barrels respectively estimated from older 2D seismic.
Additionally, the two secondary targets in the Cretaceous Wealden have been estimated to hold P50 unrisked oil in place of 267million barrels with potential recoverable resources of 80million.