摘要：针对贵州省安顺地区某煤矿生产过程中煤层瓦斯涌出量大,瓦斯抽采难等问题,特提出应用CO_2致裂增透技术提高煤层透气性,实现煤矿安全高效生产。通过透气性系数、流量衰减系数、抽采浓度、抽采纯量及瓦斯含量的对比分析,最终实现抽采钻孔优化方案。
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