Compagnie Generale de Geophysique: CGG Sets Pace in Wave Equation Market DENVER, Colorado, October 11 /PRNewswire-FirstCall/ -- Compagnie Generale de Geophysique (ISIN: FR0000120164; NYSE:GGY) set a new trend at today's SEG 2004 Annual Meeting in Denver by officially announcing its decision to offer its WaveVista Advanced Wave Equation Migration for the same economic conditions and turnaround as the Kirchhoff method. WaveVista is a high-end no-compromise wave equation migration solution, delivering superior quality depth images. Applicable to all acquisition geometries, it addresses the complex wavefronts associated with high-velocity layers, such as the salt in the Gulf of Mexico, and also delivers improved quality and resolution in less complex environments. A significant feature is the ability to produce full pre-stack angle gathers to allow amplitude analysis with angle, velocity model update and post-migration processing. The benefits for imaging are improved resolution, clearer fault definition, greater signal continuity and accurate positioning, leading to reduced uncertainty in defining reservoirs. Guillaume Cambois, CGG's Executive Vice President for Data Processing & Reservoir Services, explains: "As the search for reservoirs moves into deeper and more complex environments, wave equation migration offers superior imaging results over the previous state-of-the-art Kirchhoff method, and generates a much clearer window into the realm of subsalt geology. Our harnessing of PC cluster technology has not only made it affordable on routine projects, it has paved the way for it to be the new standard. Our decision to offer our wave-equation solution for the same conditions as Kirchhoff is in direct response to the needs expressed by our clients. It further underlines our commitment to setting the pace in the seismic data processing and reservoir services market." http://www.cgg.com/ DATASOURCE: Geophysique CONTACT: Christophe Barnini: tel +33-1-64-47-38-10, , John Bastnagel: tel +1-281-646-2443, , Andrew Tuckey: tel +44-20-8231-8055, , Philippe Bertrand : tel +603-2713-0272,

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