【摘要】 该文提供了一种缝洞型油藏分区域变重介质等效的数值模拟方法。针对不同类型储集体分类建模的结果,对各类型储集体地质模型进行孔渗属性的融合,融合时分区域地选择介质等效的重数。该文研究的方法既利用了地质建模的结果,又完成了分区域变重介质等效,可实现油藏尺度的准确模拟;根据区域的实际情况选择适当的介质等效重数,很好地解决了非均质模拟区域利用统一介质重数所带来的渗透率级差大而导致的无法收敛的问题。更多还原

【Abstract】 A numerical simulation method of variable multiple medium for fractured vuggy reservoirs is proposed. The geological model of the different types of reservoir built separately, the pore and permeability properties are combined according to these model. Meanwhile the equivalent multiplicity of the medium is selected appropriately. The method studied by present paper not only makes use of the results of geological modeling, but also completes the regional equivalent of variable multiple medium, which can realize the more accurate simulation of reservoir scale. According to the actual situation of the region, the appropriate equivalent multiplicity of the medium is selected, which can solve the problem of non-convergence caused by the large permeability difference due to using the uniform multiplicity of the medium in the heterogeneous simulation region.更多还原