Two-Phase Flow for a Horizontal Well Penetrating a Naturally Fractured Reservoir with Edge Water Injection
摘要: 本文在流线不变的假定下研究边部注水时裂缝性油藏中水平井两相渗流问题,建立了双重孔隙介质中水平井两相流体垂直二维渗流的数学模型,并用特征线方法进行了精确求解,给出了裂缝系统和岩块系统中的饱和度分布以及水平井见水时间公式,从而为边部注水开发裂缝性油藏提供了必要的理论基础和工程计算方法。Abstract: This paper examines the two-phase flow for a horizontal well penetrating anaturally fractured reservoir with edge water injection by means of a.fixed streamlinemodel. The mathematical model of the vertical two-dimensional flow or oil-water for ahorizontal well in a medium with double-porosity is established, and whose accuratesolutions are obtained by using the characteristic method. The saturation distributionsin the fractured system and the matrix system as well as the formula of the time ofwater free production are presented. All these results provide a theoretical basis and acomputing method for oil displacement by edge water from naturally fractured reservoirs.
- horizontal well /
- two-phase flow /
- medium with double-porosity /
- edge water injection /
- characteristic method /
 Buckley and M,C.Leverett,Mechaism of fluid displacement in sands,AIME,(146)(1942),107-116.  刘慈群,双重孔隙介质中二相驱替理论,力学学报,(2)(1980),109-119.  刘慈群,水平井两相渗流,力学与实践,(2)(1993),23-24.
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