1. The First Geological Brigade of Hebei Geology and Mineral Resources Exploration Bureau, Handan 056000,Hebei, China
2. School of Energy and Environmental Engineering, Hebei University of Engineering, Handan 056038, Hebei, China
3. Hebei Provincial Heating, Ventilation and Air Conditioning Technology Innovation Center, Handan 056038, Hebei, China
Abstract Medium-low temperature geothermal resources are abundant in the Guanxian fault depression. An essential foundation for the effective development and use of geothermal resources is the study of the genetic model and resource assessment of the geothermal system. This study examines the geothermal geological circumstances, hydrochemical features, and geothermal fi eld characteristics based on the regional geological structure and prior research findings. The appraisal of geothermal resources is done, and a conceptual model of the geothermal system in the research area is built. The findings indicate that the Guan xian fault depression's geothermal resources are primarily Guantao Formation sandstone heat reservoirs. The geothermal water at the wellhead has a temperature between 54°C and 60 °C, and its primary chemistry is Cl·SO4-Na. Deep thermal conduction heats the geothermal water, which is then laterally supplied to the reservoir after being largely restored by air precipitation from the western Taihang Mountains. With an annual exploitable geothermal resource of 6,782×1012 J, or 23.14×104 tons of standard coal, the Guantao Formation sandstone reservoir in the Guanxian depression has a geothermal resource of about 620.10×1016 J. An area of 18 million m2 can be heated by geothermal extraction per year, demonstrating the potential for geothermal resources and their high development and use value.
About author: Wang Xu, a senior engineer, is currently working at the No.1 Geological Brigade of Hebei Bureau of Geology and Mineral Exploration and Development. He is mainly engaged in the research of geothermal development and utilization.
Cite this article:
. Genetic model and resource evaluation of the Guantao Formation thermal reservoir in the Guanxian fault depression, southern Hebei[J]. APPLIED GEOPHYSICS, 2025, 22(3): 698-710.
2025, Vol. 22 
