摘要
通过加水热模拟实验对一褐煤样的生烃特征进行了研究，并利用压汞法研究了在热演化过程中煤源岩孔隙结构变化特征。结果表明煤源岩热解产物的形成和煤成油气初次运移与煤源岩孔隙结构之间有着密切的关系。在低温阶段，煤源岩中出现了较多的大孔隙和裂隙，此时主要是液态产物形成和排驱运移；在高温阶段，煤源岩大孔隙和裂隙消失而微小孔隙大量形成，此时主要是热解气大量形成和排驱运移。
Hydrous Pyrolysis experiment was carried out using Carboniferous bright brown coal to evaluate the hydrocarbon potential of the coal as source rocks.The pore textrue of the coal was characterized with the porosity strdied by the mercury porosimetry at elevated temperature.The results show that the generation and the initial migration of the oil and gas from coal are controled by the porous texture of the coal.
出处
《中国煤田地质》
1998年第1期1-4,共4页
Coal Geology of China
基金
国家自然科学基金
关键词
煤成油气
孔隙结构
油气运移
煤源岩
孔隙演化
Oil and gas from the coal,porous textrue,hydrous pyrolysis.initial migration.
