Abstract：Based on a mathematical and physical model (acoustic medium, elastic medium and so on), seismic migration imaging is a process which applies appropriate geophysical theory to back-propagate the multiple coverage data observed on the ground and eliminates the propagation effects of seismic waves in order to obtain the subsurface model image. Firstly, we do briefly comment on the seismic migration in the different categories, describe several types of pre-stack depth migration method widely used today, analyze the constraint factors of the migration imaging, such as computational efficiency, imaging accuracy, amplitude preservation, undulating surface and the complexity of media, and so on. Then we point out that specific issues, assumptions and applicability needed to be analyzed when selecting migration methods. Finally, based on recent SEG/EAGE conferences and publications about seismic migration imaging, we summarize development trends as follows: ①Pre-stack depth migration has become mainstream in studies of seismic migration; ②RTM is gradually developing from theory research into the industrial application; ③Seismic migration application shifts from two-dimensional to three-dimensional; ④Migration for undulating surface attracts more and more attention; ⑤Migration in TI, VTI and TTI media becomes a hot topic; ⑥Inversion migration has emerged as a new favorite of seismic migration fields.
李振春. 地震偏移成像技术研究现状与发展趋势[J]. 石油地球物理勘探, 2014, 49(1): 1-21.
Li Zhenchun. Research status and development trends for seismic migration technology. OGP, 2014, 49(1): 1-21.
