METHOD FOR PROCESSING DATA ON A WAVE FIELD BASED, INCLUDING THE USE OF MULTIPLE REFLECTED WAVES TO DETERMINE THE CHARACTERISTICS OF THE UNDERGROUND AREA UNDER

摘要

Methods known in the art can generate spurious waves from multiple-reflection waves and are therefore limited in the use of data without multiple-reflection waves from a free surface, despite the possibility of the propagation of a complete seismic signal offered by reverse migration or inversion in the time domain. By eliminating or significantly reducing the false propagation of multiple-reflection waves, improved backward migration or time-domain inversion in the present invention can correctly use data containing multiple-reflection waves from the free surface and internal multiple-reflection waves, as well as improve image quality or field estimation.