Method and system of analysis of the sea floor under -

摘要

A process to analyze the sub-seabed in which: at least one source vessel emits seismic pulses, the reflected seismic pulses are detected, by underwater seismic streamers and towed beside one another, the underwater seismic streamers are geographically located by a geographical location device, the underwater seismic streamers are located with respect to one another by a relative positioning device including acoustic beacons, process wherein towing vessels tow underwater seismic streamers, during their turns, at a depth that differs from one towing vessel to the other so as to enable the underwater seismic streamers to cross over one another.