Study On Depth Migration With Arbitrarily Wide-Angle Wave Equation
Based on the research of Arbitrarily Wide-Angle Wave Equation (AWWEs), we present a new migration method implemented using finite difference scheme in frequency-space domain. The result of depth migration imaging test illustrates the advantages of the new method. In contrast with conventional wide-angle wave equations, the second order AWWEs can be adapted to steep dips up to 85o by optimization of the parameters. Wave field extrapolation method is realized on finite difference method, so the proposed method can adapt to vary in velocity. Compared with the realization in the time-space domain, it has advantage in computational efficiency and easy imaging.
depth migration finite difference AWWEs frequency-space domain
Qifeng Sun Qizhen Du
College of Computer and Communication Engineering China University of Petroleum Dongying, China College of Geo-Resources and Information China University of Petroleum Dongying, China
国际会议
西安
英文
230-233
2011-05-13（万方平台首次上网日期，不代表论文的发表时间）