针对非均质性强、不同区块或不同层位相同孔隙度条件下渗透率级差明显的情况,综合考虑各种复杂储层渗透率的影响因素后,利用传统渗透率模型对基于流动单元指数的储层渗透率分类进行改进,建立了符合莺歌海盆地的渗透率分类模型。并提出了选取经Gassmann流体替换校正后的纵波时差、孔隙度以及泥质含量3条测井曲线,运用Fisher判别分析法建立储层渗透率类型判别标准的新方法。应用该判别方法于莺歌海盆地A1、A2气田中,结果表明:该方法判别的渗透率类型准确度极高。 Considering the obvious difference in permeability between the two reservoirs with different heterogeneities and different porosities, considering the influence factors of various reservoir permeability, using the traditional permeability model, Reservoir permeability classification improved to establish Yinggehai permeability classification model. A new method of establishing discriminant criteria for reservoir permeability using Fisher discriminant analysis is proposed by selecting three well logs of P-wave velocity, porosity and shale content corrected by Gassmann fluid replacement. The results show that the accuracy of the permeability type discriminated by this method is very high when applied to the A1 and A2 gas fields in Yinggehai Basin.