Shallow geothermal energy is a kind of low enthalpy energy with wide distribution, easy exploitation and renewable ability, which has been widely used in China.Developing and using shallow geothermal energy is of great significance for energy saving and emission reduction, improving the environment, reducing the cost of cooling and heating, and benefiting the country and the people.Water source heat pump chiller and water heater is an efficient energy-saving system which can provide heat and refrigeration by using artificial reclaimed water sources (industrial wastewater, geothermal tail water).The initial station of Hekou oil production plant in Shengli oilfield has abundant groundwater resources with higher water temperature.Based on the investigation and analysis of recoverable waste heat in oil production plants,a water source heat pump device for waste heat utilization is introduced to work with the existing gas heating furnaces, which saves 170,000 yuan annually.The application of waste heat utilization technology greatly reduces the use of mineral energy, saves energy, protects the environment and has remarkable economic benefits as well. It can be promoted and applied in all kinds of treatment devices of joint station.