In order to meet the need for making large porous media and the need for macroscopic reservoir simulation,this paper studies a permeability testing method which is suitable for special-shaped and big-sized core based on Darcy′s law and stable flow technique.This paper is concentrated on 5×5（centimeter） cubic man-made core sample,and designs a kind of core holding unit for it.Also,through substantial trial and experiments,the accuracy and stability of the core holding unit is proved good.Furthermore,we have optimized part of the operation within the experimenting process,making the test faster,more efficient and accurate.%为适应大孔道多孔渗流介质制作方法以及油藏宏观模拟的需要,在常规渗透率测试装置的基础上,研究设计适应特殊形状大尺度岩心的渗透率测试方法。以人造5cm×5cm正方体状砂岩岩心为主要研究对象,设计相应的岩心夹持器,并在大量的实验基础上证实了所设计的岩心夹持器在测试精度和稳定性上均满足要求。另外,对实验操作进行了部分优化,使岩心测试工作更加快速、高效、准确。
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