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Migration velocity modeling based on common reflection surface gather

李振春 姚云霞 马在田 王华忠

地震学报(英文版)2003,Vol.16Issue(4):430-440,11.
地震学报(英文版)2003,Vol.16Issue(4):430-440,11.

Migration velocity modeling based on common reflection surface gather

Migration velocity modeling based on common reflection surface gather

李振春 1姚云霞 1马在田 2王华忠2

作者信息

  • 1. College of Earth Resources and Information, University of Petroleum, Dongying 257061, China
  • 2. College of Marine Geology and Geophysics, Tongji University, Shanghai 200092, China
  • 折叠

摘要

Abstract

The common-reflection-surface (CRS) stacking is a new seismic imaging method, which only depends on seismic three parameters and near-surface velocity instead of macro-velocity model. According to optimized three parameters obtained by CRS stacking, we derived an analytical relationship between three parameters and migration velocity field, and put forward CRS gather migration velocity modeling method, which realize velocity estimation by optimizing three parameters in CRS gather. The test of a sag model proved that this method is more effective and adaptable for velocity modeling of a complex geological body, and the accuracy of velocity analysis depends on the precision of optimized three parameters.

关键词

CRS stacking/CRS gather/migration velocity modeling/optimized three parameters/layer stripping

Key words

CRS stacking/CRS gather/migration velocity modeling/optimized three parameters/layer stripping

分类

天文与地球科学

引用本文复制引用

李振春,姚云霞,马在田,王华忠..Migration velocity modeling based on common reflection surface gather[J].地震学报(英文版),2003,16(4):430-440,11.

基金项目

State Natural Science Foundation of China (49894190-024). (49894190-024)

地震学报(英文版)

1000-9116

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