【作者】 杨兆中； 刘紫微； 李小刚； 朱静怡； 秦杨； 靳文博；

【机构】 油气藏地质与开发国家重点实验室西南石油大学； 化学化工学院西南石油大学；

【摘要】 微波加热技术在开采煤层气和瓦斯抽采方面具有一定的理论效果和实际应用价值。本文阐述了微波加热煤岩的机理,分析了微波热效应和非热效应对煤岩产生不同的影响,概括了其介电性能影响因素。微波可高效热解煤岩,改善孔隙结构,增加储渗通道。同时,促进煤层气在储层中的解吸,增大煤层气的扩散能力,达到增产的目的。分析表明,微波开采煤层气和解决煤层瓦斯突出问题具有一定可行性,微波入井装置的研发可推动微波加热技术的发展。更多还原

【Abstract】 Microwave heating technology has a certain theoretical effect and practical application value in mining coalbed methane and gas drainage. This paper expounds the mechanism of microwave heating coal and rock, analyzes the different effects of microwave thermal effect and non thermal effect on coal and rock, and summarizes the influencing factors of its dielectric properties. Microwave can efficiently pyrolyze coal and rock, improve pore structure and increase storage and permeability channels.At the same time, promote the desorption of coalbed methane in the reservoir,increase the diffusion ability of coalbed methane, and achieve the purpose of increasing production. The analysis shows that it is feasible to exploit coalbed methane by microwave and solve the problem of coal seam gas outburst. The development of microwave heating device can promote the development of microwave heating technology.更多还原