Geothermal energy production utilizing a U-shaped well in combination with supercritical CO2 circulation

A new method for utilizing geothermal energy via supercritical CO2 circulation through a U-shaped well is proposed. By recycling the heat transmission fluid in a closed loop, the method can avoid continuous fluid loss and long-term formation damage to the geothermal reservoirs. Furthermore, a comprehensive model that incorporates the complicated heat transfer in the integrated wellbore and formation systems is developed to investigate the flow...