马兰矿煤层瓦斯赋存规律分析及预测

Coal Seam Gas Hosting Pattern Analysis and Prediction in Malan Coalmine

为了进一步揭示马兰矿的瓦斯赋存规律,在充分收集和整理矿井瓦斯地质资料的基础上,首先分析了矿区煤层瓦斯赋存影响因素并确定了主控因素,其次进行了煤层地质构造单元的划分,在此基础上,采用线性回归分析方法建立了马兰矿煤层瓦斯赋存规律模型,并依据数学模型对各主采煤层的瓦斯分布特征进行了预测。结果表明:02#、2#和8#煤层分别属同一地质构造单元,煤层埋深对马兰矿的瓦斯赋存规律起控制作用,瓦斯含量和瓦斯压力与埋深呈拟合度较高的线性关系,且随埋藏深度自西向东逐渐增大。研究结果为马兰矿采取有效性和针对性的瓦斯防治措施提供了依据。

To further reveal gas hosting pattern in the Malan coalmine, on the basis of fully acquisition and sorting coalmine geological information, firstly analyzed mine area coal seam gas hosting impact factors and determined main controlling factor, then carried out coal seam geological structure unit partitioning. On this ground, using linear regression analysis established Malan coalmine coal gas hosting pattern model, according to mathematical model carried out prediction of main mineable coal seam gas distribution features. The result has shown that the coal seams No.02, 2 and 8 belong to a same geological structure unit. Coal seam buried depth has control action on gas hosting pattern, gas content and gas pressure present high fitting degree linear relationship with buried depth, and gradually increasing from west to east along with depth deepening. Study result has provided basis for Malan coalmine to take effective and pertinence gas control measures.