GeoStreamer starts to make waves

Equipment & Technology - November 30, 2007

GeoStreamer operations on Ramform Explorer.

PGS has announced that its next generation streamer, a revolutionary dual sensor seismic streamer, is to be named GeoStreamer.

The company says GeoStreamer "marks a significant step in the development of marine seismic recording, being the first ever towed streamer to successfully house both pressure and velocity sensors, thereby delivering enhanced resolution and deeper penetration to provide a higher quality, deghosted seismic image."

Sverre Strandenes, PGS Group President, Data Processing and Technology, outlined the plans for deployment and further development of the GeoStreamer in a recent presentation.

”We are very pleased with the technology so far and manufacturing has already started to equip a further two 2-D vessels with the GeoStreamer in Q2 2008. Data from operations during the summer were shown to great interest at the SEG annual meeting and we have since acquired further data in the North Sea.”

Rune Eng, PGS Group President, Marine, said: "After a successful campaign in the North Sea acquiring comparison datasets, the GeoStreamer is now in the process of being deployed in the Asia Pacific region to acquire multi-client and proprietary 2-D surveys. Our plans to deploy the GeoStreamer for 3-D operations are on track for the fourth quarter of 2008.”

GeoStreamer technology allows the recording of both pressure and velocity fields during marine seismic acquisition and in the quieter and operationally more efficient environment of a deeper tow than conventional.

PGS patented processing of these wavefields then allows the separation of upgoing and downgoing signals and removal of the receiver ghost. The result is broadband seismic data capable of imaging deeper and more complex structures, and significantly reducing the uncertainty in exploration and development decisions.