为实现可再生能源利用与CO₂减排技术结合，通过CO₂羽流地热系统进行高温气田地热资源开采。CO₂羽流地热系统结合了CO₂封存和深部地热资源开发两种优势，在采热时实现CO₂的同步封存。以高温气田为目标热储，利用COMSOL软件，构建盖岩-热储-基岩的三维热-流耦合模型，分析热储上、下两侧岩体热补偿作用和生产井数与系统采热性能的关系。结果表明：在考虑热补偿时，羽流地热系统运行后期，流体温降速率降低，系统获得更高采热速率并取得较大热开采资源，热储开采程度更低，延长了系统运行寿命；在考虑生产井数时，发现增加生产井数，生产流体温度降幅越低。可见在CO₂羽流地热系统运行中，盖岩和基岩对热储的热补偿作用和生产井数增加都能够延长系统寿命，为未来CO₂羽流地热系统优化与实际应用提供理论参考。

To achieve the integration of renewable energy utilization and CO₂ emission reduction technology, high-temperature gas field geothermal resource extraction was conducted via the CO₂ plume geothermal system, which merges the benefits of CO₂ sequestration with deep geothermal resource development, facilitating the concurrent sequestration of CO₂ during thermal extraction. Taking a high-temperature gas field as the target thermal storage, a three-dimensional thermal flow coupling model of cap rock thermal storage bedrock was constructed using COMSOL software to analyze the thermal compensation effect of the rock mass on both sides of the thermal storage and the relationship between the number of production wells and the system's thermal recovery performance. The findings indicate that during the advanced phases of the plume geothermal system's operation, when thermal compensation is considered, the fluid's temperature decline rate diminishes, resulting in an enhanced heat extraction rate and a greater heat extraction resource, while the thermal storage extraction degree is reduced, thereby extending the system's operational lifespan. It was discovered that increasing the number of production wells resulted in a smaller production fluid temperature decline. The operation of a CO₂ plume geothermal system demonstrates that the thermal compensation effect of cap rock and bedrock on thermal storage, along with an increase in the number of production wells, can extend the system's lifespan, offering theoretical insights for the optimisation and practical implementation of CO₂ plume geothermal systems in the future.