THERMAL RESERVOIR DISTRIBUTION CHARACTERISTICS AND RESOURCE POTENTIAL EVALUATION OF LIMESTONE IN JIYANG DEPRESSION

We used the tectonic evolution background, geothermal reservoir characteristics and geothermal resources formation conditions, and made comprehensive analysis of the geothermal resources of Jiyang depression. We consider its geothermal resources are conducted by rock strata and controlled by regional tectonic background. The thermal reservoir is Cambrian and Ordovician limestone of bedrock uplift area covered by Neogene System. Ground water is mainly sedimentary burial nonrenewable water and has a strong scaling and corrosion. The geothermal resource quantity is 10.75×10⁹ GJ, and the geothermal recoverable resource quantity is 1.61×10⁹ GJ.