石油物探2011，Vol.50Issue(4)：378-385,8.DOI:10.3969/j.issn.1000-1441.2011.04.011
互易定理在平面波偏移成像中的应用
摘要
Abstract
Compared with conventional shot migration, plane wave migration can achieve the same-quality imaging with much less computation cost. However, single ended spread often affects the result of the migration. Therefore, we reviewed the influence of single ended spread on plane wave migration. According to the reciprocity principle, we developed two methods to transform single-ended spread record into artificial split spread record, and carried out numerical simulation to verify the effectiveness of the methods. Meanwhile, we applied the reciprocity principle on artificial split spread record, which indicates that reciprocity principle provides one interpolation pattern to overcome the spatial alias and improve the quality of plane wave migration. Then, the reciprocity principle was tested on the standard Marmousi model. The result shows that the application can obviously improve the quality of plane wave migration and reduce computation. Finally, the above achievements were verified by the application of actual data.关键词
互易定理/平面波偏移/双边观测/单边观测Key words
reciprocity principle/plane wave migration/split spread/single ended spread分类
天文与地球科学引用本文复制引用
韩利,韩立国,崔杰,巩向博..互易定理在平面波偏移成像中的应用[J].石油物探,2011,50(4):378-385,8.基金项目
国家重点基础研究发展计划(973)项目(2007CB209603)和国家高技术研究发展计划(863)项目(2007AA060801)联合资助. （973）
