METHOD AND DEVICE FOR STEERING A SEISMIC VESSEL, ON THE BASIS OF BOUNDARIES OF BINNING COVERAGE ZONES

摘要

It is proposed a method for steering a seismic vessel associated with a sail line and a current preplot line. The seismic vessel tows at least one acoustic linear antenna including receivers, the receivers receiving signals generated by at least one source and reflected by subsurface's layers at a plurality of reflexion points. The method includes: a) computing distances d_i, iε{1 . . . n}, from n reflexion points, included in the plurality of reflexion points, to a boundary of an already obtained binning coverage zone associated with an already used previous preplot line; b) computing a distance D, from the n reflexion points to n target reflexion points, as a function of the distances d_i; and c) providing steering information comprising or based on the distance D to a navigation system or to an operator of a navigation system, to alter the course of the seismic vessel.