未熟烃源岩中矿物低温催化脂肪酸脱羧生烃动力学模拟实验研究  

Kinetics simulation experiment on hydrocarbon generation from fatty acid decarboxylation low temperature

作　　者：张在龙[1] 王广利[1] 劳永新[1] 李哲[2] 

机构地区：[1]石油大学化学化工学院,山东东营257062 [2]中国科学院地质研究所,北京100029

出　　处：《地球化学》2000年第4期322-326,共5页Geochimica

基　　金：石油与天然气总公司"九五"攻关项目资助!(960006 09 01)

摘　　要：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 。By means of detecting change in CO2 content with time, it was researched directly that kinetics of hydrocarbon generation from fatty acid decarboxylation catalyzed by minerals in the immature source rocks at 150～160 ℃. The kinetics parameters and carbonate contents of seven immature source rocks in China were obtained. The results show relationship between kinetics parameters and carbonate content in the immature source rocks, at low temperature, normal pressure, and anhydrous condition, or at low temperature, high pressure and alkaline saltwater condition. In general, reaction rate constant increases and reaction active energy decreases with increasing of carbonate content.

关 键 词：未熟烃源岩 脂肪酸 动力学模拟 矿物 脱羟生烃 

分 类 号：P618.130.1[天文地球—矿床学]