Abstract: Aimed at the increasing complexity of seismic survey targets,the targets getting smaller,more types and hard to figure out,the better accuracy is acquired in seismic survey.It is well known that 3D seismic survey can provide more plump and fined underground information than 2D survey does,and it can meet the needs of accurate processing and reservoir prediction.Through the study on the reasonableness of seismic data processing flow,it is recognized that in order to ensure the quality of data processing,what should be done the first is to arrange a good processing flow of targets according to original data.The research achievement of processing flow of 3D seismic data high fidelity is applied to the pilot test of 3D seismic data modules in Chongxi,Sichuan Basin,a set of processing scheme of 3D high fidelity suitable for the studied area is presented.

Key words: 3D, high resolution, high fidelity, refraction wave correction, surface and underground consistence, Sichuan Basin