FRENCH oil and gas giant Total has announced a major gas discovery on the Glendronach prospect, located offshore U.K. West of Shetland. The well was drilled to a final depth of 4,312 meters and encountered a gas column of 42 meters of net pay in a high quality Lower Cretaceous reservoir.

Preliminary tests confirm good reservoir quality, permeability and well production deliverability, with recoverable resources estimated at about one trillion cubic feet (1 tcf).

Located on Block 206/04a, in water depth of about 300 meters and in a formation below the Edradour reservoir, the discovery can be developed quickly with the existing infrastructure around the Edradour field and the Laggan-Tormore facilities of the Shetland Gas Plant.

“Glendronach is a significant discovery for Total which gives us access to additional gas resources in one of our core areas and validates our exploration strategy. Located on an emerging play of the prolific West of Shetland area, the discovery can be commercialized quickly and at low cost by leveraging the existing Laggan-Tormore infrastructure,” Arnaud Breuillac, president Exploration & Production at Total, said.

The Glendronach discovery is operated by Total E&P UK with a 60% interest alongside partners Ineos E&P UK Limited (20%) and SSE E&P UK Limited (20%).