Comparison of Interferometric Migration and Preconditioned Regularizing Least Squares Migration Inversion Methods in Seismic Imaging
详细信息
- 责任者：Wang Yanfei (Key Laboratory of Petroleum Resources Research ; Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China)
- 刊名：Chinese Journal of Geophysics
- 出版年：2013
- 卷期：56(1)
- 关键词：地震偏移 ; seismic migration
- 页码：p.230-238
- 图表：illus., 48 refs.
- 分类号：1600
- issnNo：ISSN0001-5733
- isbnNo：CN11-2074/P
摘要
Interferometric migration and migration inversion are two active research fields in seismic imaging.The interferometric migration supplies us a new tool for seismic data imaging,while the migration inversion supplies us an improved resolution of imaging of seismic data.Both methods aim to improve the performance of the traditional migration imaging tool.In this paper,we consider comparison of the interferometric migration with the migration inversion.For migration inversion,we consider regularization techniques and propose a preconditioning regularized conjugate gradient method,numerical simulations on diffraction point models verify that the regularization method could yield higher resolution and more accurate amplitude than the traditional migration technique.To show the potential for application of these methods,we perform synthetic seismic data imaging.Numerical experiments based on layered velocity model are developed.The numerical results indicate that both methods are useful for seismic migration imaging and may be used for practice in the future.
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