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《Chinese Journal of Geophysics》 2011-04
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Joint imaging of primaries and surface-related multiples based on generalized shot-profile migration

GUO Shu-Juan~1,LI Zhen-Chun~1,TONG Zhao-Qi~1,MA Fang-Zheng~2,YE Yue-Ming~3 1 College of Geo-resources and Information,China University of Petroleum(East China),Qingdao 266555,China 2 Geophysical Research Institute of SINOPEC Shengli Oilfield,Dongying 257061,China 3 Petro China Research Institute of Geology,Hangzhou 310023,China  
In this paper,a generalized traditional shot-profile migration is presented to jointly image primaries and surface-related multiples.This method replaces the impulsive source with sum of impulsive source and recorded primaries and surface-related multiples,and the extrapolated wavefield at the receivers consists of recorded primaries and surface-related multiples.To achieve crosstalk suppression,the method introduces a 2D deconvolution imaging condition.A simple five-layers model and complex Sigsbee2b synthetic data are used to test the method.Results show that the method is effective to suppress the crosstalk artifacts generated by interference of upgoing and downgoing events not associated with the same subsurface reflection points.
【Fund】: 国家重点基础研究计划(973项目)专题(2007CB209605);; 国家高技术研究发展计划(863项目)(2009AA06Z206);; 国家自然科学基金项目(40974073)资助
【CateGory Index】: P631.44
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