Evaluation of Geothermal Resources In Yaoqiang Town, Jinan

Yaoqiang Town is located to the east of the Yellow River fault, and its structure is relatively complex, dominated by near-SN-trending faults,.The Wenzu fault is the eastern boundary of the geothermal field, the Xinji-Jiaobin fault is the western boundary of the geothermal field, the Qiguang fault is the northern boundary, and the northern boundary of the "Jinan rock mass" is the southern boundary. The lithology of the thermal reservoir is dominated by thick limestone with mudstone and dolomitic limestone in between. The top surface of the Ordovician system fluctuates greatly, and the Ordovician system is generally buried gradually from south to north. Controlled by the fault, there is a big difference in the burial depth in the east-west direction: with the Xinji-Jiaobin fault as the boundary, the burial depth to the west of the fault is greater than 2000m, and the east of the fault is generally less than 2000m. According to the location of Yaoqiang Town, it is estimated that the Ordovician roof is buried at a depth of 700-900m. According to the Ordovician limestone geothermal well data in Jinan City, the water output of a single well is 530-4900m3/d, and the water temperature is 33-55℃.