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    WesternGeco to acquire first multiclient wide-azimuth survey in Gulf of Mexico

    Projects and Operations // July 12, 2006

    WesternGeco announced has announced that Shell Exploration will underwrite a major portion of the first exploration multiclient wide-azimuth (WAZ) towed-streamer survey in the Gulf of Mexico. 

    The project covers a minimum of 200 Outer Continental Shelf blocks in the central Gulf of Mexico, about 125 miles off the coast of Louisiana in water depths of 4,400ft.

    To enhance the subsalt image, WesternGeco will employ Q-Marine technology, with proprietary processing workflows and wave extrapolation migration (WEM).

    Seismic data acquisition will begin in mid-July 2006 and conclude as early as December 2006 utilizing a unique design co-developed by WesternGeco and Shell. 

    A final WEM product will be available for interpretation in advance of the March 2008 lease sale.

    “This project provides WesternGeco with the opportunity to set the standard for wide-azimuth design, acquisition and processing using Q-Marine technology and breakthroughs in WAZ seismic processing,” said Maurice Nessim, vice president, North America, WesternGeco. “The multiclient product will provide value by allowing a greatly improved image of key blocks on offer in the March 2008 and subsequent lease sales, and reducing subsalt drilling risk.”

    Shell Exploration and WesternGeco recently collaborated on a proprietary survey in the Gulf of Mexico applying a unique WAZ survey design to illuminate the geology beneath complex salt.  The success of that project has led to this new WAZ multiclient survey, an acquisition step-change required for subsalt illumination in parts of the Gulf of Mexico and other salt provinces around the world.

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