基于迭代虚同相轴方法的叠后层间多次波衰减

作者：陈猛,刘嘉辉,崔永福,胡天跃,陈飞旭,匡伟康,张振

摘要：The attenuation of prestack internal multiples based on virtual seismic events is computationally costly and hinders seismic data processing.We propose a multiples attenuation method for poststack seismic data by approximating conventional virtual events.The proposed method is iterative.The proposed method is tested using 2D synthetic and the fi eld poststack seismic datasets.Compared with the conventional virtual events method,the proposed method does not require data regularization and offers higher computation effi ciency.The method requires to know the travel time of the primary refl ection waves.The results of the application to 2D fi eld datasets suggest that the proposed method attenuates the internal multiples while highlighting the deep primaries.

发文机构：Tarim Oilfi eld Company School of Earth and Space Sciences

关键词：VIRTUALEVENTSpoststackinternalmultiplelandSEISMICdata

分类号： O[理学]