中国石油大学学报（自然科学版）Issue(1)：33-42,10.DOI:10.3969/j.issn.1673-5005.2015.01.005
柴东石炭系页岩微观孔隙结构与页岩气等温吸附研究
Study of microscopic pore structure and adsorption isothermal of carboniferous shale, Eastern Qaidam Basin
摘要
Abstract
By analyzing pore structure of the carboniferous shale, Qaidam Basin, the isothermal adsorption features of shale gas under supercritical conditions were studied using shale gas high-pressure isothermal absorption experiments, and then the adsorption mechanisms of shale gas were discussed. The results show that mud shale is characterized by multi-scale pore structures, pore development, and larger contribution from micropore specific surface area; increasing methane ad-sorption quantity with the increase of pore specific surface area, or micropore volume has a positive correlation in between;under supercritical conditions, simple Langmuir equation can fit the experimental data of methane adsorption in general, but modified pore filling model ( Dubinin Radushkevich, D-R+K) fit the data of supercritical adsorption of methane and carbon dioxide absorption best; adsorbed gas may exist in the form of pore filling, and micropore is the main reservoir for the adsorbed gas.关键词
孔隙结构/超临界吸附/Langmuir方程/Dubinin Radushkevich方程Key words
pore structure/supercritical adsorption/Langmuir equation/Dubinin Radushkevich ( D-R) equation分类
能源科技引用本文复制引用
刘圣鑫,钟建华,马寅生,尹成明,刘成林,李宗星,刘选,李勇,刘晓光..柴东石炭系页岩微观孔隙结构与页岩气等温吸附研究[J].中国石油大学学报（自然科学版）,2015,(1):33-42,10.基金项目
国土资源大调查综合研究类项目(12120113040000-3) （12120113040000-3）
