Key Techniques for Non-Repeated Time-Lapse Seismic Data Processing Technology
详细信息
- 责任者：Guo Nianmin (School of Geosciences ; China University of Petroleum ; Qingdao 266555 ; China) ; Shang Xinmin
- 刊名：Oil Geophysical Prospecting
- 出版年：2011
- 卷期：46(4)
- 关键词：seismic exploration ; 数据处理 ; data processing
- 页码：p.581-592
- 图表：14 illus., 1 table, 21 refs.
- 分类号：1600
- issnNo：ISSN1000-7210
- isbnNo：CN13-1095/TE
摘要
In this paper, the authors analyze the factors of non-repeatability and their influence, match bin size, position of CMP, fold number, azimuth and SNR of the two datasets, and obtain initial seismic data with enhanced consistency. Then the authors use pre-stack processing method to improve the overall consistency of the two seismic datasets. Next the authors apply post-stack cross-equalization processing to further improve the consistency of data. Finally, using the above processing technologies to real non-repeated time-lapse seismic processing with conventional seismic data and high precision seismic data from an oilfield in eastern China, the authors obtain the actual time-lapse seismic responses caused by the changes of reservoir feature, which facilite the subsequent interpretation and analysis.