The concept of injecting supercritical CO₂ (sCO₂) into a geothermal reservoir was computationally investigated to assess its performance in terms of the benefit of using CO₂ captured from fossil power plants for geothermal heat mining. A coupled wellbore-reservoir system was simulated considering the flow of pure sCO₂ in an injection well, the interaction of sCO₂ and water in a permeable reservoir, and the flow of the two-phase mixture of sCO₂ and water in a production well. Results of simulations indicate that this CO₂ application is capable of providing a good source of renewable energy. It was found that for a reservoir with a 0.08 km³ volume, about 8–9 MW_th could be extracted in a steady state fashion for a 30-year lifetime operation. This is approximately equivalent to 100 MW_th/km³. A sensitivity analysis provided information on the impact of certain parameters on the performance of the integrated system. The injection flowrate, the distance between the production and injection wellbores and the penetrating depth of the production wellbore into the reservoir have a first order impact on the pressure management of the reservoir. Additionally, CO₂ injection temperature has a large effect on the thermosiphon characteristics of the system.

通过使用从化石发电厂捕获的CO ₂进行地热开采的好处，对将超临界CO ₂（sCO ₂）注入地热储层的概念进行了计算研究，以评估其性能。甲耦合井筒储系统进行了仿真考虑纯合组织的流₂在注入井，SCO的相互作用₂在可渗透水库和水，和SCO的两相混合物的流₂在生产和水以及。模拟结果表明，这种CO ₂应用能够提供良好的可再生能源。发现对于一个0.08 km ³的水库体积，约8-9 MW_个可以在稳定状态下的方式被提取了30年的寿命操作。这大约等于100 MW _th / km ³。敏感性分析提供了有关某些参数对集成系统性能的影响的信息。注入流量，生产井眼与注入井眼之间的距离以及生产井眼向储层的穿透深度对储层的压力管理具有一级影响。另外，CO ₂注入温度对系统的热虹吸特性有很大的影响。