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根据裂缝性低渗油藏的储层特征,建立适合裂缝性砂岩油藏渗流的等效连续介质模型。将渗流力学与弹塑性力学相结合,建立裂缝性低渗透油藏的流-固耦合渗流数学模型,并给出其数值解.通过数值模拟对一实际井网开发过程中孔隙度、渗透率的变化以及开发指标进行计算,并和刚性模型以及双重介质模型的计算结果进行了分析比较.
According to reservoir characteristics of fractured low permeability reservoirs, an equivalent continuous medium model suitable for seepage of fractured sandstone reservoirs is established. The seepage mechanics and elasto-plastic mechanics are combined to establish the mathematical model of fluid-solid coupling percolation in fractured low-permeability reservoirs, and its numerical solution is given. By numerical simulation, the porosity and permeability Changes and development indicators were calculated and compared with the rigid model and the calculated results of the dual medium model.