French seismic player CGG has launched a large seismic data re-imaging programme covering 300 blocks in the Walker Ridge area of the US Gulf of Mexico following a string of discoveries in the region.

The programme includes "two priority areas of significant industry interest" in the Wilcox formation, CGG said. The formation is "deformed by thrusts and folds beneath multiple thick salt sheets and shales that have historically been difficult to image," the company said in a release.