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双重介质中有限导流垂直裂缝井试井模型求解的新方法
引用本文:李爱芬,刘照伟,杨勇.双重介质中有限导流垂直裂缝井试井模型求解的新方法[J].水动力学研究与进展(A辑),2006,21(2):217-222.
作者姓名:李爱芬  刘照伟  杨勇
作者单位:1. 中国石油大学(华东)石油工程学院,山东东营,257061
2. 吐哈石油钻采院,新疆吐哈,838200
摘    要:在T.A.Blasingame等人提出的均质油藏中有限导流垂直裂缝试井模型(TPR)的基础上采用Laplace变换与反演技术,完成了双重孔隙介质中有限导流垂直裂缝井试井模型的求解新算法.讨论了介质间窜流、弹性储容比、裂缝导流能力及外边界条件对压力动态的影响,结果表明:用该方法计算的结果与经典的双重介质垂直裂缝井模型一致.这种算法计算速度快,精度满足要求,可用于现代试井分析的自动拟合中.

关 键 词:有限导流  垂直裂缝  双重介质  试井分析
文章编号:1000-4874(2006)02-0217-06
收稿时间:2005-07-27
修稿时间:2005-07-27

New approach to welltest interpretion model with finite conductivity vertical fracture in double porosity reservoirs
LI Ai-fen,LIU Zhao-wei,YANG Yong.New approach to welltest interpretion model with finite conductivity vertical fracture in double porosity reservoirs[J].Journal of Hydrodynamics,2006,21(2):217-222.
Authors:LI Ai-fen  LIU Zhao-wei  YANG Yong
Affiliation:1. College of Petroleum Engineering in the University of Petroleum, Dongying 257061, China; 2. Tuha Qilfield Drilling and Production Technology Institute, Xinjiang Tuha 838200 , China
Abstract:A new approach to welltest interpretation model with finite conductivity vertical fracture in double porosity reservoirs by the technique of Laplace transform and contrary transform on the basic of TPR model. The approach takes into account the effects of wellbore storage and skin factor of fracture. Effects of intcrporosity-flow factor , storativity-ratio, fracture conductivity based on fracture half-length and outer-boundary to the pressure are discussed. The results indicate that conclusions of the approach accord with classical model of finite conductivity vertical fracture in double porosity reservoirs. It is proved that the approach is valid and can be used in auto match of welltest interpretation.
Keywords:finite conductivity  vertical fracture  double porosity reservoirs  welltest interpretation
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