煤层底板涌水上行穿层孔瓦斯抽采效果评价

Evaluation of gas extraction effect of upward layer-through boreholes when gushing water in coal seam floor

针对煤层或其邻近层涌水对瓦斯抽采效果影响的研究甚少。分析了煤层底板涌水上行穿层孔瓦斯抽采效果,根据实际地质条件及涌水概况,建立了煤层底板滤水的瓦斯抽采评价模型,利用COMSOL数值模拟软件,对煤层底板涌水—瓦斯抽采模型进行计算和分析。研究可为邻近矿井的瓦斯治理工作提供一定参考。

Little research has been done on the effect of water inrush from coal seams or adjacent seams on gas extraction.This article analyzed the effect of gas extraction from coal seam floor water flowing upward through the hole.Based on the actual geological conditions and water gushing profile,the gas extraction evaluation model for coal seam floor water filtration was analyzed.COMSOL numerical simulation software was used for coal seam floor water-gas extraction.The water gushing and gas extraction model of coal seam floor was calculated and analyzed.The research can provide a certain reference for the gas control work in the adjacent mines.