煤层气排采过程三相态含气量动态变化研究  

Variation Research of Gas Content of Three States during Coalbed Methane Drainage Process

作　　者：邵长奎[1] 薛园园[2] 韦重韬[3] 

机构地区：[1]中国冶金地质总局地球物理勘查院,河北保定071000 [2]中国地质大学长城学院,河北保定071000 [3]中国矿业大学,江苏徐州221116

出　　处：《煤炭技术》2017年第8期28-31,共4页Coal Technology

基　　金：国家科技重大专项(2011ZX05034-005)

摘　　要：以沁水盆地的气压型、水压型以及混合型3种类型煤储层为例,基于所建模型,结合朗格缪尔方程,波义耳-马略特定律及煤层气在地层水中的矿化度模板,分别研究了排采过程中3种类型煤储层的游离气、吸附气、水溶气三相态含气量的动态变化。Case in three types of coal reservoirs of Qinshui basin, based on the models that were established, combined with the Langmuir formula, Boyle-Mariotte′ s law and the salinity template of coalbed gas dissolved in formation water, the dynamic change of gas content of adsorbed-gas, free-gas and water-soluble gas in three types of coal reservoir during the process of water drainage and gas production are studied.

关 键 词：吸附气 游离气 水溶气 含气量 动态变化 

分 类 号：P612[天文地球—矿床学]