Final results are expected in early 2018, ahead of a period when substantial block turnover in the area is anticipated.
The new Fusion M-WAZ reimaging program comprises data covering more than 1,000 outer continental shelf blocks (around 23,000 sq km or 8,880 sq mi) from 3D WAZ programs previously acquired by TGS and Schlumberger with the WesternGeco Q-Marine point-receiver marine seismic system between 2008 and 2012.
This reimaging program will process data from the Mississippi Canyon, Atwater Valley, and Ewing Bank blocks.
TGS CEO Kristian Johansen said: “This highly prospective region is a core area for TGS and Schlumberger, where we have a close relationship with customers who continue to demand the best data to support their exploration and drilling activities.
“We have a strong track record of adding value to existing data sets through reprocessing with the latest technology. Fusion is the largest wide-azimuth reprocessing project ever performed by TGS in our collaboration with Schlumberger.”
The custom-processing workflow for this project will include a number of newly developed imaging technologies including 3D WAZ de-ghosting; 3D surface related multiple elimination; common offset RTM gather and image-guided tomography; and orthorhombic anisotropy velocity modeling. During the reprocessing, geoscientists will update the salt interpretation and add input from the latest well data released for the area.
The reimaging program is supported by industry funding. Fasttrack data will be available in 2017 for lease round bid evaluation.