Angle-Domain Kirchhoff Prestack Time Migration Approach in VTI Media
详细信息
- 责任者：Liu Libin (Institute of Geology and Geophysics ; Chinese Academy of Sciences ; Beijing 100029 ; China)
- 刊名：Journal of China University of Petroleum
- 出版年：2012
- 卷期：36(5)
- 关键词：射线追踪 ; ray tracing ; 叠前时间偏移 ; prestack time migration
- 页码：p.51-55
- 图表：2 illus., 16 refs.
- 分类号：1600
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
An angle-domain Kirchhoff prestack time migration approach in VTI media based on ray-tracing was presented to provide more powerful supports for AVO/AVA technique. As the result of a prestack time migration by using the impulse response superposition method,the structural image and the angle domain common image gathers can be obtained. The angle-domain common image gathers of this method have straight in-phase axis and a wide range of the effective incidence angle,which is beneficial to the subsequent AVO/AVA and inversion processing.The synthetic and real data tests demonstrate the validity of this approach.