Pyrolysis of coal measure source rocks at highly to over mature stage and its geological implications

作     者：GAO Jinliang NI Yunyan LI Wei YUAN Yilin GAO Jinliang;NI Yunyan;LI Wei;YUAN Yilin

作者机构：Research Institute of Petroleum Exploration&DevelopmentPetroChinaBeijing 100083China 

出 版 物：《Petroleum Exploration and Development》 (石油勘探与开发（英文版）)

年 卷 期：2020年第47卷第4期

页      面：773-780页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

基　　金：Supported by the National Natural Science Foundation of China(41472120) 

主　　题：coal measure source rocks high-over maturation coal-derived gas thermal simulation experiment 

摘      要：The influence of water on gas generation from humic type organic matter at highly to over mature stage was investigated with thermal simulation experiments at high temperature and *** result of the experiments indicates that the effect of water on gas generation was controlled by the thermal maturity of organic *** could enhance gas generation and increase hydrocarbon gas yields significantly at over mature stage of humic type organic *** isotopic compositions of coal-derived gases generated at highly to over mature stage were mainly controlled by thermal maturity of source rocks,but also affected by formation *** and over mature coal measure source rocks are widely distributed in *** hydrocarbon gas generation capacity of coal measure source rocks and resource potential of coal-derived gases in deep formations would be significantly enhanced assuming that formation water could be involved in the thermal cracking of highly to over mature organic matter in real geological settings.