Calculation and evaluation of geothermal resources in northern Jinan geothermal field

In order to rationally develop and utilize geothermal resources in northern Jinan City, the authors studied the Neogene Guantao Formation and Paleogene Dongying Formation, and established the conceptual model of their geothermal reservoirs based on the geophysical, hydrogeological surveys and borehole data. The exploitation of geothermal resources were evaluated according to the calculation of both geothermal resources and recoverable resources of geothermal fluid in the Guantao and Dongying Formations. The study shows that this area is rich in geothermal resource with pore and fissure geothermal reservoir, which indicates 2.25×10¹⁹ J of geothermal resources, and 2.05×10⁵ m³/d of recoverable resources of geothermal fluid. The evaluation results would be conducive to the further development and management of geothermal resources in the area.