淮南煤田煤系泥页岩组成特征及吸附性能  

Composition and adsorptivity of shales in coal-bearing rock strata of Huainan coalfield

作　　者：卜红玲[1] 琚宜文[1] 王国昌[1] 房立志[1] 颜志丰[1] 李清光[1] 

机构地区：[1]中国科学院大学地球科学学院中国科学院计算地球动力学重点实验室,北京100049

出　　处：《中国科学院大学学报（中英文）》2015年第1期82-90,共9页Journal of University of Chinese Academy of Sciences

基　　金：国家自然科学基金(41372213;41030422;40972131);中国科学院战略性先导科技专项(XDA05030100);国家科技重大专项(2011ZX05060-005;2011ZX05039-004)资助

摘　　要：通过泥页岩有机质和矿物的定性定量分析,研究淮南煤田煤系地层泥页岩组成特征及吸附性能.结果如下.1）研究区泥页岩TOC含量为0.13%~8.58%,平均含量为1.98%;有机质类型以Ⅲ型为主,少量Ⅱb型;Ro值为0.61%~1.48%,平均值0.93%;矿物主要为粘土矿物和石英,粘土矿物以高岭石和伊/蒙混层矿物为主.2）TOC含量增加,吸附量增大;Ro值增加,单位TOC的最大吸附量增加;粘土矿物吸附性与其类型有关系.3）脆性和脆-韧性变形的泥页岩等温吸附特征不同.Based on qualitative and quantitative analyses of organic and mineral in shales, the composition geological characteristics and adsorptivity of shales in coal-bearing strata were systematically studied in Huainan mining area. Results are given below, 1 ） TOC content of shale in study area varies between 0. 13% and 8.58% with the average content of 1.98%; the organic matter type is mainly Ⅲ and a little Ⅱ b ; thermal maturity of organic matter ranges from 0.61% to 1.48% with the average of 0.93% ; and mineral composition of shale mainly consists of clay minerals and quartz and kaolinite and mixed layer illite/smectite （I/S） are the staple clay types. 2） Adsorption capacity increases with TOC content, and the maximum adsorption amount per unit TOC increases with Ro value; and the adsorptivity of clay mineral is associated with its type. 3） Brittle deformed shale and brittle-ductile deformed shale have different adsorption isotherm characteristics.

关 键 词：煤系地层 含有机质泥页岩 页岩气 吸附性 淮南煤田 

分 类 号：P588.311[天文地球—岩石学]