Estimation of Stratigraphic Quality Factors on Pre-Stack Seismic Data
详细信息
- 责任者：Wang Xiaojie (College of Geo-Resources and Information ; China University of Petroleum (East China) ; Qingdao 266555 ; China) ; Yin Xingyao
- 刊名：Oil Geophysical Prospecting
- 出版年：2011
- 卷期：46(3)
- 关键词：地震勘探 ; seismic exploration ; Q值 ; Q value
- 页码：p.423-428
- 图表：9 illus., 16 refs.
- 分类号：1600
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
In this paper, the authors put forward here a method for quality factor estimation on pre-stack seismic data using spectrum decomposition. First the authors use S-transform on pre-stack seismic data for time-frequency analysis. Then the authors obtain the slope of the ratio of frequency spectrum trace by trace. Finally the authors get the quality factors at zero-offset after offset-return-to-zero process. Model and real data examples show that this method not only considers the change of amplitude and frequency caused by stratigraphic absorption, but also avoid the average effect of the absorption coefficient, so it can improve the accuracy of Q estimation and its applicability.
© 2004-2018 中国地质图书馆版权所有 京ICP备05064691号 京公网安备11010802017129号 地址：北京市海淀区学院路29号 邮编：100083 电话：办公室：(+86 10)66554848；文献借阅、咨询服务、科技查新：66554700 |