Abstract

Seismic inversion is now a standard tool to extract quantitative information from the amplitude. This technique initially used to derive acoustic impedance from a single stack seismic data has evolved to be able to handle simultaneously several seismic volumes that can be pre stack, azimuthal, PP/PS or time lapse for example. Classically only one time axis was considered and preconditioning of the seismic data in the case of PP/PS or time lapse was required to align the different seismic volumes to a same reference prior to inversion