In Zhejiang Province, the development and utilization of deep hot-water type geothermal resources is mainly based on hot springs and has strong social needs. However, due to the late start of the project, there is a lack of systematic study in exploration and thus the exploration success rate is relatively low. In addition, due to the low market awareness, there are also “second-time filling”phenomena in the development of hot springs. This paper begins with the type division of geothermal resources in Zhejiang Province and the quality classification of natural hot springs, considering the structural units of geothermal resources, thermal storage properties and resources-controlling structure types, and divides the geothermal resources of Zhejiang Province into three categories and nine subcategories. In addition, combining five indicators such as temperature, resource scale, quality of geothermal fluid, degree of reserve confirmation and deepening, the natural hot spring resources are classified and graded, and the hot spring resources of the province are divided into five grades. Finally, a classification and rating system that meets the actual situation of Zhejiang Province is constructed, and typical cases are analyzed, which provides scientific reference for the exploration and development and utilization of geothermal resources.

medium deep hot-water type  /  geothermal resources  /  natural hot springs