摘要
为了建立地层水有机酸热演化动态、定量预测模型,在深入分析乙酸钠水溶液热解实验结果、实验条件、反应机理之间关系的基础上,采用优化计算方法,建立了动态、定量预测地层水有机酸热演化的化学动力学模型。研究表明:单分子脱羧反应是地质条件下地层水有机酸热解的主要反应途径;乙酸根单分子脱羧反应活化能为182.46 kJ/mol^(-1),指前因子为3.10×10~9s^(-1);经对大庆长垣西地区泉四段实际验证,所建模型适于地质条件下地层水。
In order to establish the dynamic and quantitative predicting model of the organic-acid thermal evolution for the formation water, on the bases of deep analyzing the relations among the experimental results, conditions and mechanism of NaAc aqueous solution pyrolysis reaction, the chemical kinetic model which can predict dynamically and quantitatively the thermal evolution of the organic acids in formation water was established through optimizing the calculating method. The researches show that unimolecular decarboxylation reaction is the main reacting pathway of the organic acid pyrolysis in the formation water condition ; the activation energy and pre-exponential factor of the unimolecular decarboxylation of the acetate is 182.46 kJ/mol^-1 and 3.10×10^9s^-1. The actual results have been con- firmed by Formation Quan-4 of Western Daqing Placanticline, and the established model can be used under the actual geological conditions.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
2015年第6期1-7,共7页
Petroleum Geology & Oilfield Development in Daqing
基金
国家自然基金项目"油源断裂转换带优势疏导油气条件研究"(41372153)
关键词
有机酸热演化
动力学模型
预测
地层水
大庆长垣
organic-acid thermal evolution
kinetic model
prediction
formation water
Daqing Placanticline
