贵州省织金县文家坝一矿煤层气资源及主要控气因素分析

摘要

基于大量的煤田地质勘查资料，采用体积法估算文家坝一矿煤层气资源量，并对井田内控气地质因素进行分析。结果表明：井田内煤层气资源丰富，预测资源量800m以浅为27.88亿m3，具有较好的开采价值；阿弓向斜对煤层气的富集有明显的控制作用，煤层气总体上呈现“轴部高、两翼低，中部低、北南两端高”的特点，表现出向斜及断裂控气的特征。%Based on a mass of coal exploration data, using volumetric method estimated CBM resources in the Wenjiaba coalmine No. 1, and carried out analysis of CBM controlling geological factors. The result has shown that CBM resources are abundant in the minefield, predicted resources above level 800m have 2.788 billion m3 with better exploitation value. The Agong syncline is obviously controlled CBM enrichment. CBM content presents syncline and fault controlled characteristics of“high in axial part, low in two limbs;low in mid⁃dle part, high in both north and south ends”.