子长–延川矿权区三叠系煤炭资源开发潜力评价

Evaluation of Triassic coal resource development potential in Zichang-Yanchuan mining area

为促进子长–延川矿权区石油、煤炭等资源的合理勘探和综合开发利用,在分析矿区煤层分布特征及聚煤规律研究成果的基础上,分别采用地质块段法和层次分析结合权重分析法,对区内三叠系延长组五段(长1油层组)的煤炭资源量及其开发潜力进行了预测与评价。结果表明:矿区内2个煤组(3煤组和5煤组)的原地煤炭资源量为44.87×108 t,可采资源量33.89×108 t;区内煤炭资源开发潜力优度为78.32分,属于资源富集有利区,加上区内煤层赋存条件良好,构造较简单,且开采条件较好,因此本区煤炭资源开发前景好。

In order to make full use of petroleum and coal resources and carry out reasonable and efficient devel-opment, the coal resource potential of the Triassic Yanchang Formation (member Chang 1 ) in Zichang-Yanchuan mining area was evaluated by a series of methods based on analysis of coal distribution and accumulation law. The results show that the coal resources in place of the two coal seam groups(No.3 & No.5) are 44.87×108t and the recoverable resources are 33.89×108t; the area has goodness of 78.32 points in the development potential, is a favorable target with relatively simple structure and good development conditions. The study results of this paper have laid down a foundation for petro-leum and coal resources co-exploration and economic benefit improvement in the mining area.