| Methods for wave equation prestack depth migration and numerical experiments |
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| 基金项目： | 国家重点基础研究发展计划(973计划)，国家重点基础研究发展计划(973计划)，国家自然科学基金 |
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| 摘 要： | In this paper the methods of wave theory based prestack depth migration and their implementation are studied. Using the splitting of wave operator, the wavefield extrapolation equations are deduced and the numerical schemes are presented. The numerical tests for SEG/EAEG model with MPI are performed on the PC-cluster. The numerical re-
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Methods for wave equation prestack depth migration and numerical experiments |
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| ZHANG Guanquan,ZHANG Wensheng. Methods for wave equation prestack depth migration and numerical experiments[J]. Science in China(Mathematics), 2004, 47(Z1). DOI: 10.1360/04za0010 |
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| Authors: | ZHANG Guanquan ZHANG Wensheng |
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| Abstract: | In this paper the methods of wave theory based prestack depth migration and their implementation are studied. Using the splitting of wave operator, the wavefield extrapolation equations are deduced and the numerical schemes are presented. The numerical tests for SEG/EAEG model with MPI are performed on the PC-cluster. The numerical results show that the methods of single-shot (common-shot) migration and synthesized-shot migration are of practical values and can be applied to field data processing of 3D prestack depth migration. |
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| Keywords: | wave operator splitting 3D prestack depth migration SEG/EAEG model synthesized-shot finite-difference method factorization method hybrid method MPI. |
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