Cgg Services Sas

Timothée Moulinier

Hélène Tonchia

Thomas Mensch

A method for steering a marine seismic acquisition system by determining a steering point associated with towed seismic equipment is described. Coverage boundaries for a current line in a seismic survey and for an already acquired adjacent line in the seismic survey are computed. Cross-line distances between the coverage boundary for the current line and the coverage boundary for the adjacent line are computed based on a set of specifications for the seismic survey. A steering point associated with towed seismic equipment is determined based on the computed cross-line distances. A least one steering command for a steering element in the marine seismic acquisition system is generated based on the determined steering point.

Steering for coverage in seismic surveys

System and method for steering a vessel during a marine acquisition campaign. The method includes obtaining a pre-plot track of a steered point, wherein the steered point is associated with an equipment spread towed by the vessel; calculating an offset between a past position of the vessel and a current position of the steered point; and steering the vessel along a vessel track, wherein the vessel track is calculated by shifting the pre-plot track of the steered point with at least a cross-line component of the offset.

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Paris, France

Timothée Moulinier