注CO_2驱替煤层气过程中煤基质膨胀应变的测量方法  

Development of Measurements for the Coal Swelling Strain of Coal Matrix in CO_2-ECBM

作　　者：蒋春跃[1] 袁计[1] 谭训强[1] 向润清[1] 

机构地区：[1]浙江工业大学化学工程与材料科学学院,浙江杭州310014

出　　处：《化工时刊》2010年第10期46-51,共6页Chemical Industry Times

摘　　要：对注CO2驱替煤层气过程中煤基质膨胀应变的测量方法的现状与进展进行了综述。煤基质膨胀应变的测量方法主要有应力法与光学法,但要根据煤样是否处于约束条件下来做最佳选择。其中光学法是新近发展起来的一种非接触式测量方法。最后认为光学法应成为今后煤在超临界CO2中的膨胀应变的主要测量方法。The present state and the new research advances on measurement on the coal matrix swelling strain were reviewed in CO2-enhanced coalbed methane recovery（CO2-ECBM）.Master measuring methods are respectively stress and optical methods,and the latter is the untouchable method which has been newly developed in recent years.Considering whether the coal samples are un-or constrained,optimum choice should be made.Finally,conclusions are made that optical methods should be the main technique to get the coal swelling strain in supercritical CO2 in the near future.

关 键 词：注CO2驱替煤层气 煤基质 膨胀应变 应力法 光学法 超临界CO2 

分 类 号：P618.11[天文地球—矿床学]