摘要
CCUS-EOR是国际公认的减碳途径,CO_(2)驱油技术作为低渗透油藏提高采收率的主要技术,在世界范围内得到广泛应用。国外CCUS-EOR产业链已较为成熟,项目以混相驱为主,配备长距离的输送管道等基础设施且有相关激励政策。我国CCUS-EOR产业规模化发展相对较晚,目前处于矿场试验向产业化发展的关键期。室内实验方面,我国已深化认识了陆相油藏CO_(2)驱油与埋存机理,发展了一系列实验技术;矿场试验方面,形成了驱油防腐、注采、地面等相关工艺,取得了较好的矿场增油效果;产业发展方面,国家出台了“1+N”等相关政策,促进了CCUS/CCS产业快速发展。我国下一步亟须构建CCUS-EOR全产业链理论技术标准体系,加快研发和推广大规模低成本低浓度CO_(2)捕集技术、超临界CO_(2)长距离管输技术、大规模大幅度CO_(2)提高采收率技术和CO_(2)埋存地质体长期规模完整性技术等。
CCUS-EOR is an internationally-accepted way for reduction of carbon emission.CO_(2) oil-flooding technology is the main EOR technique for low-permeability oil reservoirs and widely used worldwide.The CCUR-EOR industrial chain is relatively mature abroad.The projects mainly adopted the miscible flooding process with the infrastructure of long-distance transmission pipelines and the help of the relative incentive policies.China is comparatively late for its CCUR-EOR industrial development and currently under the critical stage from on-the-field experiment to industrialization.As for indoor experiment,China has made an in-depth study of the CCUS/CCS mechanisms for continental reservoirs and developed a series of experimental technology.As for on-the-field experiment,the relative processes were developed in connection to oil flooding and anti-corrosion,injection and production as well as surface engineering.As for industrial development,the state has formulated the“1+N”to promote the CCUS/CCS industrial development.China should establish the theoretical and technological indexes system of the full CCUS/CCS industrial chain and accelerate research and development of the cost-effective capture technology of low-concentration CO_(2), the supercritical long-distance CO_(2) piped transmission technology, the technology able to improve CO_(2) EOR significantly and on a large scale, and the technology to keep the integrity of CO_(2) buried geological bodies on a long-term and large-scale basis.
作者
高明
孙盈盈
尹恒飞
刘皖露
Gao Ming;Sun Yingying;Yin Hengfei;Liu Wanlu(PetroChina Research Institute of Petroleum Exploration&Development,Beijing 100083,China;State Key Laboratory of Enhanced Oil Recovery,Beijing 100083,China)
出处
《石油科技论坛》
2024年第4期58-65,共8页
PETROLEUM SCIENCE AND TECHNOLOGY FORUM
基金
国家重点研发计划“国家质量基础设施体系”重点专项“利用大型油气藏埋存二氧化碳关键技术标准研究与应用”(编号:2023YFF0614100)
中国石油天然气集团有限公司重大科技专项“二氧化碳规模化捕集、驱油与埋存全产业链关键技术研究及示范”(编号:2021ZZ01)。
