An Analysis of the Amplitude Characteristics of Seismic Reflection during Fluid Replacing
详细信息
- 责任者：Wang Yong (Institute of Geophysics and Geomatics ; China University of Geosciences ; Wuhan 430074 ; China) ; Yang Hehua
- 刊名：Geophysical and Geochemical Exploration
- 出版年：2012
- 卷期：36(6)
- 关键词：时移地震法 ; time-lapse seismic methods ; 剩余油 ; remaining oil
- 页码：p.991-995
- 图表：2 illus., 6 tables, 6 refs.
- 分类号：1600
- issnNo：ISSN1000-8918
- isbnNo：CN 11-1906/P
摘要
In the oil field development stage,water or gas injection mining will change reservoir properties and the fluid inside the reservoir,which may provide a possiblity for time-lapse seismic monitoring.Based on Gassmann equation,the authors discussed the variation regularity of seismic velocity and density when the reservoir pore fluid is replaced,and established a seismic geological model for water saturation variation according to the forecast result.Through analyzing and optimizing the amplitude attributes extracted from the model,the sensitive time-lapse seismic attributes suitable for this area was finally found.
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