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TWO-PHASE FLOW THROUGH ANISOTROPIC DOUBLEPOROSITY MEDIA FOR VERTICALLY FRACTURED WELL
Author(s): 
Pages: 698-706
Year: Issue:  6
Journal: Acta Mechanica Sinica

Keyword:  各向异性 双重介质 垂直裂缝井 两相渗流;
Abstract: 建立了各向异性双重介质中垂直裂缝并两相渗流数学模型,用有限差分法求得了其解, 进行了算例分析.得到了含水饱和度沿径向、最大及最小渗透率方向的分布和水驱油前缘等饱 和度面随时间的变化,分别讨论了各向异性、吸渗作用对这种介质中两相流作渗流的影响.结 果表明:渗透率较大的方向,前缘推进速度较快,油井见水较早;吸渗使前缘推进速度减慢, 使油井见水晚.注水开发这种油藏时,见水前注入率不能太大以充分发挥吸渗作用,存在最佳 注入率.这对于水力压裂垂直裂缝井注水开发碳酸盐岩裂缝性油藏有指导意义.
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