Inversion AVA after Pre-Stack Depth Migration

E-06 INVERSION AVA AFTER PRE-STACK DEPTH MIGRATION Abstract 1 In the frame of the Amplitude Versus Angle (AVA) analysis after pre-stack depth migration we present here the necessary post-processing of the migrated images needed for a robust AVA inversion. The stability of the AVA inversion is then tested with respect to the signal to noise ratio to the flatness of the events within the Common image Gathers (CIGs) and the knowledge of the angle range boundaries also called the corridor mute. Robustness of the inversion scheme remains a very important point with poor signal to noise ratio even if the