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《Journal of China University of Petroleum(Edition of Natural Science)》 2009-04
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Reverse-time depth migration technology of prestack elastic wavefield and its application

LI Wen-jie,WEI Xiu-cheng,NING Jun-rui,WANG Yong-sheng(Exploration and Production Research Institute,SINOPEC,Beijing 100083,China)  
The prestack reverse-time depth migration scheme was studied based on elastic wave equation for two wavefield components recorded in 2D isotropic media.The algorithms relevant to prestack elastic wave reverse-time depth migration scheme were derived on the basis of elastic wave equation and the solution of solving relevant problems were studied.Then,the prestack reverse-time depth migration for 2D multicomponents data were complemented.Finally,model test and real data processing was carried out.The results show that the scheme isn t influenced by stratigraphic dip and is suited to processing seismic multi-components data from the areas with steep subsurface structures and big variation of horizontal velocities.
【Fund】: 国家“863”科技攻关项目(2006AA06Z203)
【CateGory Index】: P631.4
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