SEISMIC SURVEYING WITH STEERABLE PROPULSION DEVICES SECURED TO SEISMIC CABLE

摘要

A method of seismic surveying comprises deploying at least one seismic cable from a seismic survey vessel onto the seabed. To accurately position the cable at a desired location on the seabed, the cable is provided with steerable propulsion devices, which are attached to it at 300 metre intervals along its length, and which are powered and controlled via the cable.