中国石油大学学报（自然科学版）2012，Vol.36Issue(2)：91-96,6.DOI:10.3969/j.issn.1673-5005.2012.02.015
基于算子优化的Fourier有限差分法保幅叠前深度偏移
True-amplitude prestack depth migration based on operator optimized Fourier finite difference method
摘要
Abstract
Beginning the one way splitting of the acoustical wave equation, continuation operator and boundary condition based on traditional wave equation in the prestack depth migration were derived. Then the true-amplitude boundary condition and three new migration operators with the optimized operator were gotten. Through the new operators and boundary condition, the imaging effect in fault and inclined layers and the quality of the prestack depth migration were impoved. The model calculation and real data process results show that using the optimized boundary condition and migration operators can enhance the imaging precision even if the lateral velocity is variable.关键词
地震资料处理/Fourier有限差分/叠前深度偏移/保幅边界条件/波场延拓算子Key words
seismic data processing/ Fourier finite difference/ prestack depth migration/ true-amplitude boundary condition/ wave field continuation operator分类
天文与地球科学引用本文复制引用
郭恺,仝兆岐,李振春,吕晓东..基于算子优化的Fourier有限差分法保幅叠前深度偏移[J].中国石油大学学报（自然科学版）,2012,36(2):91-96,6.基金项目
国家“863”计划项目(2009AA06Z206) （2009AA06Z206）
国家科技重大专项课题(2011ZX05014-001-008HZ) （2011ZX05014-001-008HZ）
