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Imaging Solution Records
Almost All Reflected Energy

August 8, 2017

TopSeis has been designed to image shallow reservoirs of the Barents Sea, where main reservoir rocks are located at depths of 400 to 2,200 m. TopSeis uses a split-spread, source-over-streamer configuration to improve the sampling of near offsets and record almost all the reflected energy.

A source vessel is deployed a few kilometers behind the streamer vessel with a number of source arrays at wide separation. This delivers a split-spread, zero offsets and full-azimuth near-offset coverage with exceptionally high fold in a cost-effective way. With TopSeis, wider source separations ensure more uniform shot-line spacing and more continuous crossline near-offset distribution. Trace density is increased further by using small cable separations and dense shooting.


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