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双孔介质封闭边界双层窜流油藏渗流模型研究

发表时间:2008-02-28  浏览量:1863  下载量:697
全部作者: 张烈辉,王海涛,贾永禄,陈方方
作者单位: 西南石油大学油气藏地质及开发工程国家重点实验室
摘 要: 目前对层状油藏渗流规律的研究普遍集中在均质油藏领域,忽视了对双孔介质层状油藏的研究。本文在Bourdet对具有层间窜流的单孔介质双层油藏渗流模型和Warren-Root对单层油藏双孔介质渗流模型研究的基础上,认真分析了双孔介质封闭边界双层窜流油藏的复杂渗流机理,经过严格而详细的推导,合理地建立了该类油藏的渗流模型,并对模型进行了正确的求解,利用Stefhfest数值反演结合计算机编程,绘制了井底流压的典型曲线,最后从渗流机理和渗流过程上对曲线形态进行了分析。所获得的结果不仅有助于人们正确地认识此类复杂油藏的渗流机理,也可用于试井分析、油藏产能研究等,为人们合理地开发此类油藏提供科学的理论依据。
关 键 词: 石油天然气能;双层;窜流;双孔介质;渗流;压力动态
Title: Model study of two layered crossflow system fordual-porosity reservoir with impermeable outer boundary
Author: ZHANG Liehui, WANG Haitao, JIA Yonglu, CHEN Fangfang
Organization: State Key Laboratory of Oil-gas Reservoirs Geology andexploitation, SouthWest Petroleum University
Abstract: At present the research of layered reservoir is concentrated in single porosity media in each layer. However, they neglected the research of layered reservoir for dual porosity media. Bourdet built a model of two layered crossflow system for single porosity media reservoir, and Warren-Root built a model of single layered reservoir for dual porosity media system. On the base of their research, the author deeply analyzed the complex flow mechanism of two Layered crossflow system for dual porosity media reservoir with impermeable outer boundary. By strictly derivation he successfully built a model of this kind of reservoir. In addition, he correctly solved the model by mathematical methods, and drew log-log curves by Stehfest numerical inversion and programming. Finally, he analyzed the shape of typical curves from flow mechanism and process. The results help people to understand the flow mechanism of this kind of reservoir and also can be used of well test and productivity researching and so on. It provides theoretical basis for people to reasonably develop reservoir.
Key words: oil natural gas energy; two layered; crossflow; dual porosity media; seepage; pressure performance
发表期数: 2008年6月第4期
引用格式: 张烈辉,王海涛,贾永禄,等. 双孔介质封闭边界双层窜流油藏渗流模型研究[J]. 中国科技论文在线精品论文,2008,1(4):405-412.
 
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