由于我国煤层气藏的特殊性,使用当前技术对其开发时受到较大限制。注气增产法是一种具有发展前途的新措施,但注入气体后,煤中存在多元气体的相互作用。论述了国内外煤层气开发现状及我国煤层气开发存在的问题,并初步探讨了煤中多元气体相互作用与替代机理,指出了今后的研究方向与发展趋势。

Because of the particularity of coalbed methane reservoir in China, exploiting coalbed methane is restricted when using present technique.The technique of exploiting coalbed methane by injecting gas is a new measure. But multi-element gas will interact when injecting gas. This paper demonstrates the present situation and existing problems of exploiting coalbed methane in interior and overseas,and analyses the interaction between multi-element gas in coal and the substitute mechanism,and points out the diretely.