在150～160℃和未熟烃源岩矿物的催化下 ,使十八烷酸脱羧生烃 ,用测定反应放出的CO2 量随时间的变化关系直接研究了我国7个油田未熟烃源岩对脂肪酸催化脱羧生烃的动力学。由所得到的动力学参数与未熟烃源岩中碳酸盐含量的关联中发现 ,在低温、常压、无水条件下或低温、高压、碱性盐水条件下未熟烃源岩对脂肪酸催化脱羧生烃的动力学参数与其碳酸盐的含量有关 ,一般碳酸盐含量高反应速率常数大 ,而反应活化能低 Under the catalysis of immature source rocks and minerals at 150 ~ 160 ℃, the octadecanoic acid was decarboxylated and the carbon dioxide released by the reaction was measured over time to directly study the effects of fatty acid catalysis Kinetics of decarboxylation. The correlation between kinetic parameters and carbonate contents in immature source rocks shows that under the conditions of low temperature, normal pressure and no water or under low temperature, high pressure and alkaline brine conditions, the unsaturated source rocks can catalyze the decarboxylation of fatty acids The kinetic parameters of hydrocarbon generation are related to the content of carbonate. Generally, the carbonate has high reaction rate constant and the reaction activation energy is low