潘集矿区深部现今地温场特征及其构造控制

发布时间：2018-06-02 08:40

  本文选题：现今地温场 + 地温梯度　； 参考：《高校地质学报》2017年01期

【摘要】：潘集矿区深部勘查区是淮南煤田未来主要的接替资源地,但煤炭深部开采必然会面临严峻的地热地质问题,而前人对该区的研究多局限于浅层地温资料的预测评价,制约了对深部地热条件的认识。为此,此次依据潘集矿区深部最新的地面钻孔井温测井数据,结合浅层地温和井下巷道岩温测试等相关地质资料,研究该区现今地温场特征,并从多方面分析地质构造对该区地温场的控制作用。研究成果表明,在垂向上地温与深度呈较好的正相关关系,地温梯度整体上随深度的增加而递减;平面上地温梯度介于20.9~36.2℃/km之间,平均值为26.7℃/km,总体上呈由潘集背斜核部向两翼和外围逐渐降低的趋势。该区现今地温场主要受潘集背斜的构造控制,导水断层也是该区局部地温异常的主要原因之一,岩浆岩的放射性生热作用也在一定程度上影响煤系岩层的生热结构。
[Abstract]:The deep exploration area in Panji mining area is the main replacement resource for Huainan coalfield in the future. However, deep coal mining is bound to face severe geothermal geological problems, and most of the previous studies in this area are limited to the prediction and evaluation of shallow geothermal data. It restricts the understanding of deep geothermal conditions. Therefore, based on the latest temperature logging data of deep surface borehole in Panji mining area, combined with relevant geological data, such as shallow ground temperature test and underground roadway temperature test, the characteristics of present geothermal field in this area are studied. The controlling effect of geological structure on the geothermal field in this area is analyzed from many aspects. The results show that there is a good positive correlation between the vertical temperature and the depth, and the geothermal gradient decreases with the increase of the depth, and the geothermal gradient on the plane is between 20.9 鈩，

本文编号：1968134