HOUSTON –WesternGeco has expanded its multi-client, wide-azimuth survey in the Gulf of Mexico. The third phase of the E-Octopus project acquisition is under way. WesternGeco says it will add a fourth phase in Nov. 2007 and a fifth phase in 1Q 2008.
"We are currently conducting targeted magnetotelluric surveying in the most challenging imaging areas for all phases of the E-Octopus program," says Aaron Gatt Floridia, vice president, WesternGeco Electromagnetics. "Previous pilot studies using marine magnetotellurics (MT) have successfully indicated salt thickness variation. Based on these results, we are offering the addition of integrated MT measurements as part of our WAZ service. This technology step-change and the project expansion will greatly improve the critical base salt and subsalt images required by our clients."
E-Octopus began in July 2006 and has acquired more than 700 OCS blocks of wide-azimuth data. The third phase began in May 2007 and covers more than 450 blocks in Green Canyon. A second Q-vessel will join the acquisition survey in Nov. 2007.
The final deliverables will include state-of-the-art technologies such as anisotropic multi-azimuthal tomography, wavefield extrapolation demultiple, and shot domain WEM with angle gathers.