本文论述了干酪根有机酸在成岩演化和储层次生孔隙研究中的价值。认为与干酪根有机酸有成因关系的次生孔隙，是干酪根累积已产酸与矿物作用的结果；同时提出用地层干酪根有机酸的残酸相对总产量（用单位重量干酪根残酸产量，地层有机酸含量，地层厚度３要素之积表示）及其Σ双元酸／Σ单元酸比值（简称Σ双／Σ单）预测储层次生孔隙发育层段的新思路。 This article discusses the value of kerogen organic acids in diagenetic evolution and reservoir secondary porosity. It is concluded that secondary porosity, which has a genetic relationship with kerogen, is the result of the accumulation of acid and minerals in kerogen. At the same time, the relative total yield of residual acid in kerogen , The organic acid content in the stratum, the product of the thickness of the stratum 3, and the ratio of its Σ diacid / Σ monobasic acid (referred to as Σ double / Σ single) to predict the secondary pore development in the reservoir.