Hot dry rock (HDR) geothermal resources have been listed in the national energy development plan by increasing countries owing to their incomparable advantages over conventional fossil fuels. HDR research is still at the early stage in China. Based on analyses of exploitation projects of HDR in the world, we propose several geothermal and geological indexes for HDR development. We take the HDR resource project in Zhangzhou geothermal field as an example to discuss the rules and indexes for site selection through analyses of acidic rock distribution, cap rock condition, deep geothermal anomaly, and regional stability. We also build a conceptual model of the drilling area of Zhangzhou geothermal field, estimate the deep geothermal reservoir temperature, and put forward suggestions for future development of HDR geothermal resources in Zhangzhou.

hot dry rock  /  site selection index  /  Zhangzhou, Fujian  /  genetic model