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为满足数值模拟对油气储层有效渗透率准确解释的要求;通过岩心分析化验资料和测井解释资料建立岩心规模孔隙渗透率模型,准确求取岩心规模孔隙渗透率;再引入DST测试分析资料,建立DST测试渗透率和岩心规模孔隙渗透率的关系模型,即多重介质渗透率模型,从而得出能够反映储层真实渗流特征的多重介质渗透率。油藏数值模拟计算和实际生产动态证实多重介质渗透率较孔隙渗透率可以更为真实地反映储层流体的渗流特征。在类似储层的渗透性评价中该评价方法值得推广和应用。
In order to meet the requirement of accurate interpretation of the effective permeability of oil and gas reservoirs by numerical simulation, a core-scale porosity permeability model was established by core analysis and logging interpretation data, and the core-scale porosity permeability was accurately obtained. Then the DST test and analysis data were introduced, The relationship model between DST test permeability and core-scale porosity permeability is established, that is, the multi-media permeability model, so as to obtain the multi-media permeability that can reflect the true seepage characteristics of the reservoir. Reservoir numerical simulation and actual production proves that the multi-medium permeability is more realistic than the pore permeability to reflect the seepage characteristics of reservoir fluids. This evaluation method is worth popularizing and applying in the permeability evaluation of similar reservoirs.