摘要
结合我国现阶段煤层气开采效率低、产量少等问题,提出了利用远红外辐射作用开采煤层气新方法。通过进行红外热效作用对煤体孔隙结构影响试验研究,结果表明:红外辐射对煤体微观状态下的致裂、促进孔隙发育等效果能够影响煤岩比表面积变化,进而影响宏观的吸附性能;煤体在红外辐射作用下有利于裂隙的扩展发育,能够增加煤层气解吸运移通道,提高煤层气的解吸运移效率。
In combination with the current problems of low efficiency and low output of coalbed methane in China,a new method for mining coalbed methane using far-infrared radiation was proposed.The experimental study on the influence of infrared thermal effect on the pore structure of coal body is carried out.The results show that the effect of infrared radiation on the cracking of the coal body under microscopic state and the promotion of pore development can affect the change of specific surface area of coal and rock,and then affect the macroscopic adsorption performance.The coal body is beneficial to the expansion and development of the fissure under the action of infrared radiation,which can increase the desorption and transport channel of the coalbed methane and improve the desorption and transport efficiency of the coalbed methane.
作者
马钱钱
马凯
MA Qian-qian;MA Kai(Chongqing Research Institute,China Coal Technology and Engineering Group,Chongqing 400037,China;National Key Laboratory of Gas Disaster Detecting,Preventing and Emergency Controlling,Chongqing 400037,China)
出处
《煤炭技术》
CAS
2020年第6期113-116,共4页
Coal Technology
基金
国家科技重大专项(2016ZX05043-005-003)。
关键词
热效应
红外
比表面积
孔隙结构
thermal effect
infrared
specific surface area
pore structure
