Batany, Yves-Marie, Multiple removal

Batany, Yves-Marie*

Multiple removal with parsimony methods

D. Donno, H. Chauris (MINES), L.T. Duante, J. Romano (Campinas)

The suppression of multiple events is a crucial task when processing seismic data because they can  obscure, or sometimes be mistaken for primary reflections during the seismic imaging process, thus changing the interpretation of the subsurface properties. While for the prediction of multiples, researchers agree on using the SRME (surface-related multiple elimination) method, the multiple  adaptive subtraction is a very active and interdisciplinary research area, and further developments are expected to improve the overall multiple removal result.The goal of this PhD thesis to investigate innovative techniques for the removal of the multiples from 2D and 3D marine seismic data acquisitions. In particular, differently than the methods present in the literature, we would like to address solutions based on Blind Source Separation (BSS) techniques that exploit the sparsity of the signals.

*Yves-Marie was a former GPX Master student 2012-2015.