煤层气抽采过程围岩稳定性数值模拟研究
Manufacture & Upgrading Today（2022）
Abstract
松软破碎低渗煤层是我国煤层气高效抽采最主要的制约因素,煤层气抽采导致煤基质及围岩变形,进而影响抽采效率.文章经过地质调研,利用数值模拟软件对煤层气抽采过程中穿层钻孔围岩稳定性进行模拟研究.研究结果表明:距离钻孔越远,煤层气抽采对煤层孔隙压力的影响越小,穿层钻抽采煤层气对围岩变形的影响较小.
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