Patent ID: 8864416
Filing Date: 2014-10-21
Classification: G01V

Abstract:
1. A method for performing a seismic survey in a water column, the method comprising: providing a length of flexible cable from a cable storage device disposed on a vessel to a cable handling device adjacent the cable storage device; wherein the flexible cable comprises a plurality of discrete cable segments coupled by a connector that prevents transmission of power and data signals between adjacent cable segments and a specific gravity that is greater than a specific gravity of water in the water column; routing the flexible cable to pass adjacent a workstation disposed on the vessel; deploying a free end of the flexible cable into the water column; attaching at least one of a plurality of seismic sensor units to the cable as the cable passes the workstation; and controlling a motion of the vessel and a rotational speed of the cable handling device to allow the flexible cable to rest on the bottom of the water column.