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针对测井储层评价中的渗透率预测问题,基于相控建模理念,采用流动单元分析法,将所研究工区划分为4个特征明显的流动单元;采用最能表征储层储集性能的声波时差、补偿密度、补偿中子、自然伽马、流动层带指数进行模糊聚类分析,选取最大隶属度大于70%的最优样本进行建模,得到流动单元的判别模型;建立了复杂砂砾岩储层渗透率模型,提高了储层流体渗透性能的预测精度,为非均质储层物性认识提供了参考方法。
According to the concept of phase control modeling, the flow cell analysis method is used to divide the study area into four distinct flow units. According to the prediction of permeability in logging reservoir evaluation, Acoustic time difference, compensation density, compensated neutron, natural gamma ray and fluidized bed zone index. The optimal sample with the largest membership degree greater than 70% is selected for modeling, and the discriminant model of the flow cell is obtained. The complex grit The reservoir permeability model improves the prediction accuracy of reservoir fluid permeability and provides a reference method for understanding the physical properties of heterogeneous reservoirs.