采用COMSOL公司开发的多物理场直接耦合的高级仿真模拟软件系统研究了极薄煤层钻采对近距离煤层群卸压前后煤层渗透率变化规律的影响。现场应用实测结果表明了极薄煤层钻采卸压的可行性与适用性,同时也证明了数值模拟的正确性。 This paper uses the advanced simulation software system developed by COMSOL to simulate the permeability change of coal seam before and after pressure relief in the near coal seams. Field application of measured results show the feasibility and applicability of pressure relief during the drilling of extremely thin coal seams, and also proves the correctness of the numerical simulation.