中文摘要：

借鉴火烧油层,提出采用火烧煤层的方式开采煤层气,对其进行理论上的分析。随后对采收率始终较低的区块,提出采用火烧煤层的方式进行开采,运用数值模拟的方法,对井下抽采与火烧煤层开采煤层气2种开采方式中煤层气日产量、井底压力、累积产量进行对比分析,得到煤层气最终采收率高于常规作业,从而证明火烧煤层是一种行之有效的煤层气开采新方法。

英文摘要：

Proposes that the coalbed methane can be extracted by burning coal seam through theoretical analyze.Because of the low recovery ratio of the blocks, the method of combustion of the coal seam is proposed, and the numerical simulation method is used to analyze the effect of coalseam combustion, contrast parameters are daily production, bottom hole pressure, coalbed methane production. The results show the ultimate recovery is higher than conventional coal seam is a effective coalbed methane extraction. drainage, which proves that the combustion of