Patent ID: 6625083
Filing Date: 2003-09-23
Classification: G01V,Y02A

Abstract:
A system for seismic exploration of an underwater subsurface formation comprising:a displaceable collecting assembly which moves under water and is deployed under water to collect seismic data and includes a recording unit; at least one seismic signal acquisition unit for operation on a bottom of a water body comprising at least seismic receiver including a data acquisition module for collecting seismic signals sensed by the at least one seismic receiver which couples the at least one seismic receiver to the formation; an acoustic ranging assembly which communicates with the at least one seismic signal acquisition unit and provides a reference for obtaining a position of the at least one seismic signal acquisition unit when operating on the bottom of the water body; and a data transmission link which transmits seismic data collected by the at least one acquisition unit to the recording unit while the displaceable collecting unit is under water to collect seismic data.