页岩干燥温度对甲烷吸附的影响  

The Influence of Drying Temperature on Methane Adsorption Capacity of Shales

作　　者：曹涛涛[1,2] 王思波[1] 宋叙[1] 宋之光[1] 

机构地区：[1]中国科学院广州地球化学研究所有机地球化学国家重点实验室,广州510640 [2]中国科学院大学研究生院,北京100039

出　　处：《新疆石油地质》2014年第3期315-318,共4页Xinjiang Petroleum Geology

基　　金：国家973项目(2012CB214704);国家科技重大专项(2011ZX05008-002-20)

摘　　要：同一样品在不同干燥温度处理后的对比实验显示,在110℃干燥条件下页岩的失水率高于60℃的失水率;而110℃干燥的页岩样品甲烷吸附量也显著高于60℃干燥条件下的甲烷吸附量。可见,干燥温度显然是影响页岩甲烷吸附的一个重要因素。尽管页岩的甲烷吸附量受干燥温度的影响,但同一个样品的甲烷吸附曲线形态基本相似,显示干燥温度主要影响到页岩吸附量,但并不影响页岩吸附机理,这表明,较高干燥温度下由于水分的驱除增加了页岩吸附的孔隙。The contrast experiment for the same shale sample after different drying temperature processing shows that the water loss rate of shale sample at 110 drying temperature is higher than that at 60 , and the methane adsorption capacity at 110 is also much higher than that at 60 . As a result, the drying temperature is obviously a very important factor influencing the shale methane adsorption capacity. Even so, the study indicates that the drying temperature mainly affects the shale adsorption capacity, but does not influence the mechanism of shale adsorption for the same shale sample, which suggests that higher drying temperature can remove the moisture in shale away and increase the porosity adsorpted in shale.

关 键 词：页岩气 干燥温度 甲烷吸附容量 失水率 

分 类 号：TE122.2[石油与天然气工程—油气勘探] TE125