USA: WesternGeco Commences Industry’s First Dual Coil Shooting Survey


WesternGeco announced today that it has begun the acquisition of the Revolution multiclient survey. Revolution marks the first time that Dual Coil Shooting* multivessel full-azimuth acquisition has been performed commercially in the industry worldwide.

Located in the East Breaks and Garden Banks areas of the Western Gulf of Mexico, the Revolution multiclient survey will provide full-azimuth (FAZ) coverage for over 130 Outer Continental Shelf (OCS) blocks.

“We are encouraged by the initial images derived from Revolution, our first Dual Coil survey. The ultra long offsets combined with full-azimuth illumination enables significant imaging uplift in the Gulf of Mexico’s complex subsalt structures,” said Thomas Scoulios, North America region manager, WesternGeco. “We are pleased with the commitments from multiple underwriters who are helping to direct this project’s success.”

Building on multi- and wide-azimuth techniques, the FAZ Dual Coil Shooting is a new, advanced method of acquiring ultra long offset marine seismic data using four vessels following a circular path. This acquisition provides better target illumination in challenging environments by enabling greater azimuthal coverage and a higher signal-to-noise ratio. Dual Coil Shooting technology is possible due to the capabilities of the Q*-Marine point-receiver seismic system.

WesternGeco will apply the latest seismic data processing techniques to this survey, including true-azimuth 3D Generalized Surface Multiple Prediction (3D GSMP*) and anisotropic reverse time migration (RTM).

About Schlumberger

Schlumberger is the world’s leading supplier of technology, integrated project management and information solutions to customers working in the oil and gas industry worldwide. Employing approximately 105,000 people representing over 140 nationalities and working in approximately 80 countries, Schlumberger provides the industry’s widest range of products and services from exploration through production.

Source:WesternGeco  , October 17, 2010;

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