PGS introduces new streamer at EAGE

Petroleum Geo-Services ASA today introduced its new generation streamer technology at the European Association of Geoscientists and Engineers annual conference and exhibition.

Gene Kliewer,
Technology Editor

EAGE, London --Petroleum Geo-Services ASA today introduced its new generation streamer technology at the European Association of Geoscientists and Engineers annual conference and exhibition. The streamer co-locates both pressure and velocity sensors in a single unit.

By adding particle velocity sensors to the pressure sensors in the streamer, PGS created "the only dual-sensor towed marine streamer in the world," says Sverre Strandanes, group president, Data Processing and Technology, at PGS. "Through this we are overcoming the limitations of hydrophone-only acquisition systems."

PGS cites the benefits of the new technology as canceling ghost reflections, increasing bandwidth, and adding the capability of operating in rougher sea conditions.

The streamer can be towed deeper to boost low-frequency reception for better penetration and to run in a quieter environment. The combination enhances resolution and multi-attenuation. The deeper tow also contributes to the larger weather window, PGS says.

The company plans to acquire a 2D project using the new streamers this summer. It also plans to put the technology on a 2D vessel this year and a 3D vessel in 2008.

PGS plans to continue to develop market-unique technology, says Strandanes. Future application advances are expected to come in fiber optics and electromagnetic surveying.

"We have been active in fiber optics for the last 10 years and expect to install a commercial system in the Gulf of Mexico later this year," says Strandanes. "We also see technical and operational synergies between seismic and electromagnetics. In the next one to two years we expect to use the same platform as seismic surveys for towed electromagnetic surveys."

6/12/2007

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