WesternGeco starts first-ever Dual Coil seismic shoot

The first commercial multi-vessel, full-azimuth seismic acquisition program is under way in the Gulf of Mexico by WesternGeco.

Offshore staff

HOUSTON – The first commercial multi-vessel, full-azimuth seismic acquisition program is under way in the Gulf of Mexico by WesternGeco. The Dual Coil Shooting Revolution survey is in the East Breaks and Garden Banks area over 130 outer continental shelf blocks.

Built on multi- and wide-azimuth methods, this full-azimuth (FAZ) technique is a method of acquiring ultra long offset marine seismic data using four vessels on a circular path. WesternGeco says this better illuminates the target in a challenging environment for greater azimuthal coverage and higher sing-to-noise ratio.

Upon survey completion, WesternGeco says it will apply true-azimuth 3D Generalized Surface Multiple Prediction (3D GSMP) and anisotropic reverse time migration (RTM) to interpret the data.

“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.

10/14/2010

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