LONDON --GCCVeritas plans to acquire two 2D seismic surveys offshore Gabon in time for the 10th Gabonese License Round scheduled between June and December of 2010.
The two surveys are to be in the north and south of Gabon's underexplored deepwater blocks. In the north (Zone Nord) CGGVeritas says will acquire a 2,200 km (1,367 mi) grid designed to highlight Tertiary and Cretaceous plays. In the south (Zone Sud) a 7,400 km (4,598 mi) very long offset survey will image beneath the Aptian salt to help identify potential traps.
"The complexity of the salt bodies in the South Gabon Basin would warrant 3D seismic coverage," says Steve Toothill, chief geologist, CGGVeritas EAME region. "However, to shoot a 3D survey over the whole area of more than 50,000 sq km (19,305 sq mi) would take too long and be prohibitively expensive. A well planned 2D survey, specifically designed to target below the salt, will be sufficient to delineate structures. This will allow oil companies to evaluate the area, make their bids and then follow up with high-specification 3D surveys, such as wide-azimuth, to provide better illumination below the salt."