Common reflection surface stack for rugged surface topography
复杂地表条件下共反射面元（CRS）叠加方法研究

In the condition of rugged surface topography,static correction can't be done well,which is an important factor that influences the processing quality of seismic data obtained from mountain regions.However,an extension of the CRS stack method that takes into account the effects of the surface topography can process pre-stack data without static correction.Then data redatuming can be performed with the kinematic parameters produced by CRS stack.Seismic data processing indicates that the result of the extension of the CRS stack for rugged surface topography is better than that of conventional stack in the aspect of S/N ratio and the continuity of reflection events.Different from CRS stack for horizontal surface,in the formula of CRS stack for rugged surface topography,the three kinematic parameters are combined.It is very difficult to separate them completely and optimize them in turn by simplifying CRS gather.The introduction of simulating annealing algorithm solves the difficulty in combination optimization effectively.