Application of 3 D-FKK filtering technology in pre-stack denoising

In three-dimensional (3D)land seismic data acquisition,there are three common problems including non-uniform spatial acquisition,low space sampling rate and amplitude nonuniformity,which can not meet precondition of FKK filtering technology.Through analyzing the existing FKK filter technology,a spatial aliasing threshold analysis method was suggested on the basis of shortcomings of the technology.Finally,the 3D seismic data normalization and the energy consistent processing for the FKK filter technology were proposed.The practical application shows that the new method is effective.