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AssigneeCggveritas Services SA
InventorsMichel Manin, Jean-Paul Carle, Peter Weiss, Frederic Schom
Estimating the term…
A system for seismic exploration of a submerged sub-surface comprises a plurality of bases (4) located at predetermined seabed positions, each base comprising an elongate stem penetrating the seabed, at least a seismic sensor (10, 12) within said stem, a radially extending support zone (19) connected to the upper end of the stem, said upper end projecting from the seabed, and a respective plurality of modules (6) each incorporating a data storage unit and a power source, each module being mechanically and electrically connected to the upper end of said stem, said module being capable of being connected to, and disconnected from, the base by an underwater vehicle.
A system for seismic exploration of a submerged sub-surface including:
A method of seismic exploration of a submerged sub-surface, comprising the steps of lowering near a predetermined seabed position, a base having an elongate stem and at least a seismic sensor within said stem, a radially extending support zone being connected to the upper end of the stem, anchoring the stem to the seabed while keeping its upper end projecting from the seabed, connecting a module including data storage means and a power source to the upper end of the stem by means of an underwater vehicle, repeating the steps above for each seabed position at which seismic data must be acquired, and disconnecting said modules from the respective bases after completion of the seismic acquisition by means of an underwater vehicle.
18-35. (canceled)
Dependencies are inferred from the claim text.