1. CO2 羽流地热系统热提取率影响因素数值模拟.
- Author
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魏菊艳, 付美龙, 李国俊, and 黄奕斌
- Abstract
In order to obtain the relationship between the heat recovery characteristics of the CO2 plume geothermal system and different influencing factors, a three-dimensional geometric model was established and the COMSOL Multiphysics software was used to conduct numerical simulations to further explore the effects of wellbore diameter, injection-production well spacing, reservoir permeability, initial porosity, and natural fracture length on the heat recovery characteristics of the CO2 plume geothermal system. The simulation results show that under the control variable method, the heat extraction rate of the plume geothermal system increases first and then decreases with the increase of the wellbore diameter, the heat extraction rate increases with the increase of heat storage permeability and injection-production well spacing, the initial porosity increases, the heat storage permeability becomes better, and the heat extraction rate increases. It can be seen that the results of this study provide a basis for optimizing the heat recovery performance of CO2 plume geothermal system, and guide the extraction of deep geothermal energy. [ABSTRACT FROM AUTHOR]
- Published
- 2024
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