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由于多重介质岩石本身的复杂性,其渗流规律及数值模拟一直就是一个世界性的难题。应用等效连续介质的思想,建立了孔洞型储层的等效连续介质模型,在此基础上结合裂缝、溶洞型储层的等效模型,形成了较完善的多重介质储层等效渗透率和孔隙度模型。以轮古某油区为例进行了应用分析,并通过孔渗参数的等效进行了数值模拟。数值模拟结果和实际生产特征的对比,验证了等效连续介质模型在多重介质油藏数值模拟中的适用性。
Due to the complexity of multiple media rocks, the seepage law and numerical simulation have always been a worldwide problem. Based on the idea of equivalent continuum, an equivalent continuum model of a hole-type reservoir is established. Based on this, an equivalent model of fractured reservoirs and cave-type reservoirs is established to form the perfect permeability of multi-media reservoir And porosity model. A case study of the Lunju ancient oilfield was carried out and the numerical simulation was carried out through the equivalent of pore permeability parameters. The results of numerical simulation and actual production comparison verify the applicability of equivalent continuum model in numerical simulation of multiple medium reservoir.