砂岩储层渗透率表征方法探讨

THE METHOD OF CALCULATING PERMEABILITY OF SANDSTONE RESERVOIR

渗透率是反映储层渗流能力的重要参数,目前对于单一储层的渗透率表征方法,通常是在岩心分析渗透率或测井解释渗透率的基础上进行厚度加权算术平均。这种方法对于均质的储层来说是适用的,但对于非均质严重的储层,不能准确反映该储层的实际渗流能力。本文提出一种应用可动流体体积权衡表征渗透率的方法,经实际资料验证,能较好地反映储层的实际渗透能力。

Permeability is an important parameter which can reflect the ability of reservoir infiltration.The method to calculate permeability of sandstone reservoir is usually to get the thickness balance based on core analysis or log explainable permeability.This is appliable to homogeneous reservoir,but it isn't the same thing for heterogeneous reservoir,because the result can't show the factual ability of reservoir infiltration.A new method of calculating permeability,which is based on active fluid balance is brought forward in this paper.The result can show the factual ability of reservoir infiltration better according to verified data.