《石油勘探与开发》1986年第1期发表了“用毛管压力资料计算迂曲度的方法探讨”(以下简称“探讨”)一文,现就本人的一点浅见,同“探讨”作者商榷。“探讨”写出了关于计算迂曲度公式的推导过程,见原文第55—56页。通常,在油层物理教程中,把迂曲度定义为流体质点在岩样中渗流时实际走过的路程 l与岩样外观长度 L 的比值,并从毛管束模型出发把孔道的平均迂曲度((?))表示为(?)(1)式中ε为孔隙的流动系数,即连通孔隙度与绝对孔隙度之比;η为结构系数,它表征了真实岩石与截面积和长度相同的平行柱状毛管束的理想模型之间的差别。“探讨”在推导公式时把迂曲度定义为毛细管长度 L_c(如果认为各毛细管长度不等,应写 L_c 为 L_(ci)与岩石长度 L_r 之比,而通常的油层物理教程中由于从毛管束模型出发,总是视 In the first issue of “Petroleum Exploration and Development”, published in 1986, the article “Discussion on the Method of Calculating Tortuosity with Capillary Pressure Data” (hereinafter referred to as “Exploration”) is a bit of my own humble opinion and a discussion with the author of “Exploration”. The Study wrote a derivation of the formula for calculating tortuosity, see pp. 55-56. Usually, in the reservoir physics tutorial, the tortuosity is defined as the ratio of the distance l actually traveled by the fluid particles in seepage through the rock specimen to the length L of the rock specimen and the mean tortuosity (( (1) where ε is the flow coefficient of the pore, that is, the ratio of connected porosity to absolute porosity; η is the structural coefficient which characterizes the parallel columnar shape of the real rock with the same cross-sectional area and length The difference between the ideal models of capillary bundles. “Discussion” defines tortuosity as the capillary length, L_c, when deriving the formula (assuming that the capillary lengths are not equal, L_c should be written as the ratio of L_ (ci) to the rock length, L_r, whereas in normal reservoir physics tutorials, Model starting, always depending on