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    Alizé sets new standard with Nautilus-Sentinel

    Projects and Operations // January 22, 2010

    CGGVeritas has announced that the successful deployment of its Nautilus acoustic positioning and streamer steering system on Alizé, one of its high-end vessels, has dramatically increased production levels on the first project of the mega 3D seismic programme currently being acquired for PEMEX in the Gulf of Mexico.

    Despite severe winter weather conditions Alizé, on its first project of the programme, has achieved a one-day production record of 117km2 and has significantly exceeded production targets.

    This has been supported by the deployment of 12 Sercel Nautilus-Sentinel steered solid streamers and the fact that, with a 12 by 8-km by 100m configuration, Alizé is towing one of the largest areal receiver arrays in the industry.

    Nautilus has dramatically reduced the infill requirements through consistent streamer separations and depth control across the entire spread.

    The first project in the PEMEX survey programme, known as Han Sur-Oeste de Tamil, covers a surface area of 12,300km2 in the Mexican deep waters of the Gulf of Mexico.

    Robert Brunck, Chairman and CEO, CGGVeritas, said: “Alizé’s deployment of a combination of advanced Sercel Sentinel solid streamers and Nautilus is setting a new benchmark for safer operations, quieter data and better crew efficiency."

    "We are confident that, with the Alizé’s clear competitive technological edge and our advanced imaging capabilities, we will deliver the lowest-noise and highest-quality data to best image the subsalt areas being targeted by this survey programme.”

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