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Research progress in surface-related multiple attenuation

WANG Wei-hong1,2,3,CUI Bao-wen1,LIU Hong2(1.Exploration and Development Research Institute of Daqing Oilfield Corp.Ltd.,Daqing 163712,China;2.Institute of Geology and Geophysics,Chinese Academy of Sciences,Beijing 100029,China;3.Daqing Oilfield Postdoctorate Working Station,Daqing 163458,China)  
Surface-related multiple(SRM) is a coherent noise with strong energy especially in marine seismic data.The research progress in SRM attenuation is presented in this paper,and also the SRM future research direction.Methods that attenuate SRM can be classified into two categories: filter approach and wave equation-based method.An example of parabolic Radon transform(PRT) is demonstrated in this paper for filter approach,the energy leakage is a problem in traditional PRT. At the same time the advantages and shortcomings is analyzed for wave equation method,the SRM attenuation in this category has no assumptions about the subsurface,but the demands are strictly for data acquision.The SRM attenuation result of wave equation based method is decided by a series of preprocessing error.Combining filter and wave equation approach is the main future research topic,how to combine those two methods effectively is a problem should be paid more attenuation.
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