Transformation of P-S to P-P seismic data

Wai-kin Chan, Robert R. Stewart

Conventional converted-wave processing requires special algorithms to account for the P-S asymmetric move-out in the CMP domain. Two techniques, asymmetric move out correction (ASMO) and average Vp/Vs value analysis by simulated annealing are proposed to correct for this asymmetric move-out behavior and transform the P-S data into P-P, so that normal P-wave processing algorithms can be followed. The synthetic example presented here shows some promising results.