AN ANALYSIS OF THE AMPLITUDE CHARACTERISTICS OF SEISMIC REFLECTION DURING FLUID REPLACING
WANG Yong1,2, YANG He-hua2, GUI Zhi-xian2
1. Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan 430074, China;
2. Oil and Gas Resources and Exploration of Ministry of Education Key Laboratory, Yangtze University, Jingzhou 434023, China
Abstract：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.Mainly based on Gassmann equation,the authors discussed in detail 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.The result provides a basis for predicting the distribution of remaining oil.
汪勇, 阳和华, 桂志先. 流体替代的地震反射振幅特征分析[J]. 物探与化探, 2012, 36(6): 991-995.
WANG Yong, YANG He-hua, GUI Zhi-xian. AN ANALYSIS OF THE AMPLITUDE CHARACTERISTICS OF SEISMIC REFLECTION DURING FLUID REPLACING. Geophysical and Geochemical Exploration, 2012, 36(6): 991-995.
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