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Simple Determination of Coal Seam Permeability Coefficient
Author(s): 
Pages: 92-93,100
Year: Issue:  5
Journal: Coal

Abstract: 煤层透气性系数测定中直接测定参数的精确性起着至关重要的作用,为了更加高效、精确的测定煤层透气性系数,研究了钻孔多级流量计多个测定量程的特性,通过测定大量流量的数据,并对数据运用最小二乘法进行优化得出精确的煤层透气性系数和钻孔涌出量衰减变化规律.在鹤煤六矿进行现场试验取得了良好的效果,证明了钻孔多级流量计在精确测定煤层透气性中的重要作用,同时对矿井瓦斯防治工作提供了理论依据,生产更加安全、高效.
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