基于单程波方程的角度域保幅偏移

• Published in: 应用地球物理（英文版） 2009, Vol.6 (1), p.50-58
• Main Authors: 叶月明, 李振春, 徐秀刚, 朱绪峰, 仝兆岐
• Format: Article
• Language: Chinese
• ISSN: 1672-7975
• DOI: 10.1007/s11770-009-0004-3

P5; Traditional pre-stack depth migration can only provide subsurface structural information. However, simple structure information is insufficient for petroleum 'exploration which also needs amplitude information proportional to reflection coeffi.cients. In recent years, pre-stack depth migration algorithms which preserve amplitudes and based on the one-way wave equation have been developed. Using the method in the shot domain requires a de.convolution imaging condition which produces some instability in areas with complicated structure and dramatic lateral variation in velocity. Depth migration with preserved amplitude based on the angle domain can overcome the instability of the one-way wave migration imaging condition with preserved amplitude. It can also offer provide velocity analysis in the angle domain of common imaging point gathers. In this paper, based on the foundation of the one-way wave continuation operator with preserved amplitude, we realized the preserved amplitude prestack depth migration i