石油地球物理勘探2011，Vol.46Issue(6)：890-896,7.
任意广角波动方程频率-空间域叠前深度偏移成像
摘要
Abstract
Prestack depth migration methods based onwave equation are effective tools for imaging in media of strong laterally varying velocity. On the basis of the arbitrarily wide-angle wave equations (AWWEs ), we propose a new migration method implemented with finite difference high-split scheme in frequency-space domain. The test of impulse response clears that the low order AWWEs can be adapted to steep dips by optimization of the parameters. The results of prestack migration of Marmousi dataset show that the method can handle strong lateral variation and steep dip. Compared with the AWWEs scheme in the time-space domain, the proposed scheme has some advantages in computational efficiency.关键词
任意广角波动方程/频率-空间域/深度偏移/有限差分Key words
AWWEs/frequency-space domain/ depth migration/finite difference分类
天文与地球科学引用本文复制引用
孙歧峰,杜启振..任意广角波动方程频率-空间域叠前深度偏移成像[J].石油地球物理勘探,2011,46(6):890-896,7.基金项目
本文研究受教育部新世纪优秀人才支持计划(NCET-07-0845),山东省自然科学基金(JQ201011、ZR2009EZ002)和山东省科技攻关计划(2010GHY10502)联合资助. （NCET-07-0845）
