Prestack Seismic Data Enhancement with Common-Offset Common-Reflection-Surface Stack
详细信息
- 责任者：Li Dong (College of Geosciences ; China University of Petroleum ; Qingdao 266580 ; China) ; Li Zhenchun
- 刊名：Journal of China University of Petroleum
- 出版年：2012
- 卷期：36(2)
- 关键词：地震勘探 ; seismic exploration ; 共深度点叠加 ; common depth point stack
- 页码：p.76-80
- 图表：2 illus., 16 refs.
- 分类号：1600
- issnNo：ISSN1673-5005
- isbnNo：CN37-1441/TE
摘要
A partial common-offset common-reflection-surface (CO CRS) stacking method was developed to enhance the quality of sparse low fold prestack seismic data.A multi-parameter CO CRS traveltime formula was applied to compute partial stacked CRS supergathers,and the data were regularized by filling the gaps in cases of missing traces compared with original CMP gathers. The results show that compared with the image section obtained from the original seismic data,the image section by the application of migration with the prestack data obtained through partial CO CRS stack improves not only the signal-to-noise ratio but also the continuity of reflection event.