安徽合肥三河地区地热地质特征及找热方向分析

Geological features of geotherm in the Sanhe area, Hefei,Anhui and analysis of the exploration target

本文结合区域地质、物探及前期地热勘查成果,对合肥市三河地区地热地质条件进行了系统分析,指出合肥市应在三河地区北部张桥组砂岩内部寻找层状兼有带状特征热储(合肥滨湖式),南部寻找受断裂控制的带状热储(庐江汤池式),尤其应重视北部层状兼有带状特征热储的寻找。

Based on regional geology, geophysical survey and previous geothermal exploration results, this paper systematically analyzes the geological conditions of geotherm in the Sanhe area of Hefei City, and points out that the layered and banded heat reservoirs(the Binhu type of Hefei) should be explored in the sandstone of the Zhangqiao Formation in the north of the Sanhe area, and the fault-controlled banded heat reservoirs(the Tangchi type of Lujiang) should be explored in the south.Special attention should be paid to the search for layered and banded heat reservoirs in the north.