西南石油大学学报(自然科学版) ›› 2009, Vol. 31 ›› Issue (5): 178-182.DOI: 10.3863/j.issn.1674-5086.2009.05.040

• 博导论评 • 上一篇    下一篇

层间窜流的双孔介质双层油藏渗流模型

张烈辉1 王海涛1 贾永禄1 刘洋2   

  1. 1.“油气藏地质及开发工程”国家重点实验室?西南石油大学,四川成都610500;2.中国石油大港油田公司油气评价事业部,天津大港300280
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2009-10-20 发布日期:2009-10-20

MODEL OF TWO-LAYERED RESERVOIR WITH CROSSFLOW AND DUAL POROSITY MEDIA

ZHANG Lie-hui1 WANG Hai-tao1 JIA Yong-lu1 LIU Yang2   

  1. 1.State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,Southwest Petroleum University,Chengdu Sichuan 610500,China;2.Oil and Gas Reservoir Evaluation Department,Dagang Oilfield Company,CNPC,Dagang Tianjin 300280,China
  • Received:1900-01-01 Revised:1900-01-01 Online:2009-10-20 Published:2009-10-20

摘要: 针对目前对层状油藏渗流规律的研究普遍集中在均质油藏方面,忽视对双孔介质层状油藏研究的现状,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,认真分析了具有层间窜流的双重孔隙介质双层油藏的复杂渗流机理,经过认真、严格、详细的推导,首次合理地建立了该类油藏的渗流模型,并对模型进行了正确求解,利用Stehfest数值反演和计算机编程,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分析了地层参数对曲线形态的影响。所获得的结果有助于正确地认识此类复杂油藏的渗流机理,可用于试井分析、油藏产能研究等,为合理开发此类油藏提供科学的理论依据。

关键词: 层状, 窜流, 双孔介质, 压力动态, 数值反演

Abstract: On the basis of Bourdet′s research on the reservoir model with single porosity and two layers and Warrant-Root′s research on the reservoir model with single layer and dual-porosity,aiming at the present study focusing on homogeneous reservoirs and the research on layered reservoirs with dual- porosity media being neglected,the authors of the paper analyze the complex flow mechanism of two- layered reservoirs with dual- porosity media and interface crossflow,through strict and detailed derivation,the flow model of this types of reservoirs is firstly built up,and the model is solved.By means of Stehfest numerical inversion and computer programming,the typical curves of bottom hole flow pressure are plotted.Finally,the influence of formation parameters on curve shape is analyzed according to flow mechanism and process.The achieved conclusion will be helpful to correctly recognize the flow mechanism of the reservoirs,and can be used to analyze well testing and reservoir deliverability.

Key words: layered reservoir, crossflow, dual porosity media, pressure performance, numerical inversion

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