This paper introduces the working principle of some new technologies of shallow geothermal and mid-deep geothermal utilization innovative technologies such as aquifer thermal energy storage (ATES), river water source heat pump, ice source heat pump, shallow infiltration seawater source heat pump, comprehensive energy of ground source heat pump and geothermal gradient utilization. By investigating the application cases of these technologies in the Yangtze River Delta region, this paper focuses on the analysis of their advanced technologies, excellent economy and the main problems to be solved. According to their respective characteristics, the prospects for the promotion and application of these innovative geothermal utilization technologies in regions rich in geothermal resources in China, including the Yangtze River Delta, are forecasted. For aquifer energy storage, well completion technology should be optimized to avoid damage to the underground environment. The difficulties in the promotion of river water source heat pump lie in operation management. Ice source heat pump puts forward higher requirements for the preparation and transportation system of ice slurry. The implementation of shallow infiltration seawater source heat pump project must have suitable hydrogeological conditions. The ground-source heat pump integrated energy technology emphasizes the diversification and complementarity of the energy supply system, while the geothermal integrated cascade utilization technology highlights the energy gradient of the energy consumption system. The key to the promotion of these two technologies is economy.

geothermal utilization  /  aquifer thermal energy storage  /  water source heat pump  /  supercooled water  /  infiltration  /  comprehensive energy  /  cascade utilization