Patent ID: 8014229

Claim:
A method for seismic exploration, comprising the steps of: controlling a plurality of sources so that they emit a plurality of seismic waves in a subsurface zone to be explored, each source successively occupying a plurality of emitter positions; producing for each emission an emission signal, and recording the position of the source and the instant of the start of the emission; recording, by seismic sensors, composite signals reflected by the subsurface zone in response to said emissions; and carrying out a shot point migration from a reflected wave field reconstructed from the composite signals and the respective positions of the sensors, and an incident wave field reconstructed from the emission signals, the source positions and the instants of start of emission, to obtain a seismic image, wherein the shot point migration uses a product of a Fourier transform of the reflected wave field and a conjugate of a Fourier transform of the incident wave field to determine a reflectivity r associated with the subsurface zone.