摘要：针对低透气性煤层瓦斯抽采困难的问题,应用CO2致裂技术,利用液态CO2受热升温达到临界温度时瞬间气化产生的高压波预裂煤层,同时通过CO2与CH4分子在煤体表面的竞争吸附作用促进瓦斯解吸,实现煤层强化抽采,增透效果十分明显.
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