Method for seismic acquisition on the seabed, guiding equipment, seismic acquisition equipment and seismic acquisition system for the implementation of this method
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United States of America Patent
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Nov 5, 2013
Grant Date -
Nov 17, 2011
app pub date -
May 16, 2011
filing date -
Apr 7, 2005
priority date (Note) -
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status (Latency Note)
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Abstract
The invention relates to a method for acquiring seismic data at a plurality of positions spread out over a zone on the seabed which includes transmitting acoustic waves in the water layer above the zone by a plurality of sources, for each of the acquisition positions, dropping from the surface a seismic acquisition equipment, the equipment comprising a seismic acquisition unit and autonomous guiding equipment adapted to receive while descending acoustic signals from the sources and to control its trajectory according to the received acoustic signals so as to direct said equipment towards said position, performing the seismic acquisition, causing the acquisition equipments to move up to the surface, and retrieving the acquisition equipments on the surface.
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