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本文概述了模拟实验方法，研究了不同酸类、浓度和温度对储层物性的影响，以及岩石矿物组分变化特征。实验结果表明，酸溶蚀能力是：乙酸＞草酸＞碳酸＞丙酸；高浓度大于低浓度；高温条件大于低温条件。薄片分析结果说明，地层水中有机酸主要是与长石作用，同时也造成矿物中ＳｉＯ２和Ａｌ３＋迁移，因此可根据地层水中有机酸和各矿物成分分析结果判断储层次生孔隙发育程度
This paper presents an overview of simulation experiments, the effects of different acids, concentrations and temperatures on reservoir properties and the variation of rock mineral composition. The experimental results show that the acid dissolution capacity is: acetic acid> oxalic acid> carbonic acid> propionic acid; the high concentration is greater than the low concentration; the high temperature is greater than the low temperature. The results of thin slice analysis indicate that the organic acids in formation water mainly interact with feldspar and also cause the migration of SiO2 and Al3 + in the minerals. Therefore, the degree of secondary pore development can be judged according to the analysis results of organic acids and minerals in formation water