courtesy Fred Olsen Energy

Tullow Oil believes it has a “continuous trap” of reservoir extending across two blocks offshore Ghana, in a major boost for commercial production in the burgeoning oil province.

The Hyedua-1 well in the Deepwater Tano licence discovered a significant light oil accumulation, according to wire lines and samples of reservoir fluid, the independent oil company declared Wednesday.

The Hyedua-1 well appears to meet Mahogany-1 between the West Cape Three Points and Tano blocks. Tullow operates Tano licence with a 49.95 percent stake, while also holding a 23 percent interest in the West Cape Three Points.

The “Belford Dolphin” deepwater drill ship is targeting Santonian turbidite sandstones encountered by the Mahogany-1 discovery well 5.3 kilometres to the northeast.

The well has encountered a gross reservoir interval of 202 metres with 41m of net hydrocarbon-bearing pay. The Hyedua and Mahogany finds combine into a 361 m column.

A 910-square-kilometre km 3D seismic survey and three appraisals are in the cards for late 2007.

Tullow partners in the Deepwater Tano licence are Kosmos Energy, subsidiary of Anadarko Petroleum Corporation, Sabre Oil & Gas and the Ghana National Petroleum Corp.