Patent ID: 6456565
Filing Date: 2002-09-24
Classification: G01V

Abstract:
A system of undersea seismic prospecting for seafloors of the type comprising at least one measurement streamer provided at its head with a diver vehicle and, at its tail, with an inert float, and comprising means for the injection of a buoyancy liquid into containers integrated into the streamer, wherein the streamer is formed by a non-stretching and non-compressible inner tube and an outer tube that is coaxial with the inner tube and radially extensible, forming said integrated containers with the inner tube, and wherein the means of injection enable the injection of said liquid into the space between these two tubes so that it is possible to adjust the buoyancy of the streamer between a negative value at which it lies on the seafloor and a positive value at which it floats above this seafloor so that it can be shifted one measurement position to another.