Abstract:In view of the advantages of high resolution of prestack inversion and rapid and stable poststack inversion,the hybrid inversion combining the prestack with poststack becomes bright point that the people vie with each other in studying.The key technique is using prestack seismic waveform inversion to construct visual curves in wells,on that basis,we can do poststack inversion by taking the visual wells as controlling information.The paper used the GA global optimization in non-linear inversion to construct visual curves in wells,successfully solved the issues that highly non-linear between data and model exists in prestack seismic waveform inversion and multiple minimum values in target functions.The paper gave the steps of computation that the seismic waveform inversion is used and matters needing attention in key steps.The cases given in the paper showed the method is feasible.