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《Progress in Exploration Geophysics》 2003-04
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Some problems and strategies in converted-wave seismic exploration

Liu Yang, Wei Xiucheng (CNPC Key Lab of Geophysical Exploration, University of Petroleum, Beijing 102200, China)  
This paper analyzes some problems in converted-wave seismic data acquisition and processing, corresponding strategies are given. Research shows that work area should be selected purposefully. Conventional P-wave geometry can not be directly used in converted-wave exploration. The quantity for shear-wave statics can be derived solely from the shear-wave information in X-component. Velocity analysis by nonhyperbolic equation and interactive method, converted point calculation by exact formula, normal moveout correction by nonhyperbolic equation are adopted to enhance processing accuracy. Stacking bin size of converted-wave is varied to ensure even coverage fold. Some examples are given.
【Fund】： 国家“十五”科技攻关计划 (2 0 0 1BA60 5A -12 ) ;; CNPC“十五”科技攻关计划“三分量地震勘探技术”
【CateGory Index】： P631.4
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