LONDON -- Dominion Tanzania says its 3D seismic survey over Tanzania’s deepwater block 7 has been completed. The data, acquired by Fugro Geoteam using the seismic vessel GeoBarents, covered a total area of 1,236 sq km (477 sq mi), including the Alpha, Beta, and three other exploration prospects.
Energy Resource Consultants has assessed mean prospective resources in Alpha at 1.1 Bbbl as the oil case and 7 tcf in the event of a gas find.
CGGVeritas will process the new 3D data, with work due to be completed by 2 Q2011. The long offset, 7-km (4.3-mi) streamer data will support amplitude variations with offset studies, the latter (on existing 2D data) have helped de-risk Alpha and Beta.
The results should assist re-assessment of in-place volumes, and improve chances of success not just for Alpha prospect, but for other prospects mapped within and adjacent to the survey area.
“The recent [Pweza-1] discovery in Tanzania is very significant and justifies the increased levels of interest shown by major industry players in deepwater East Africa,” says Andrew Cochran, CEO of Dominion. “We are extremely excited by what we already know about block 7 and early results from the 3D support the drilling of block 7, perhaps next year depending on rig availability.”