"一方面，超临界二氧化碳更容易进入微小裂缝及低渗岩块中，把躲藏在孔隙中的原油驱赶出来，提高 原油产量；另一方面还能将二氧化碳永久封存地下，实现增油与降碳一举两得。"华北油田采油三厂工 程技术研究所CCUS项目技术员侯东星说。 经过细致的地质研究证明，项目团队发现潜山油藏具备使用CCUS技术的先天优势：上部盖层密封性 好、埋藏深，地层压力较高，地面井筒状况好，能产生强大的驱油动力，为高效驱油创造了绝佳条件， 最终采收率能提高27%。 项目团队将重点锁定在潜山顶部、井间以及稀井网区域，打破传统"采高避低"的开采定式，首创"顶部 注气、中低部采油"新模式，并通过缩小井距、加密井网，配合二氧化碳混相驱油技术，有效驱动原来 难以采出的原油。"这就像在瓶子的顶部注入气体，把中底部的液体从下面的吸管压出来。"侯东星形象 地解释。 （来源：河北日报） 转自：河北日报 京津冀最大碳驱油碳埋存项目累计注碳30万吨 增油与降碳一举两得 本报讯（贾楠、王瑶）京津冀地区规模最大的碳驱油碳埋存项目——华北油田八里西潜山油藏CCUS （二氧化碳捕集、利用与封存）先导试验项目，正将二氧化碳源源不断注入地层用于驱油作业。自2022 年底启动注 ...

Core Viewpoint - The company has paused its million-ton CCUS (Carbon Capture, Utilization, and Storage) project due to significant changes in the CCUS industry, rendering the project economically unviable [1] Group 1: Company Status - The CCUS project is currently on hold, primarily because of changes in the CCUS sector that affect its economic feasibility [1] - The company's CCUS business is currently focused on the application of carbon dioxide in oil fields [1] Group 2: Future Plans - The company plans to resume the CCUS project once carbon capture becomes feasible [1]

Core Viewpoint - China Huaneng announced the successful operation of the world's largest coal-fired carbon capture demonstration project, which captures 1.5 million tons of CO2 annually, marking a significant advancement in carbon capture, utilization, and storage technology in China [1] Group 1: Project Overview - The carbon capture project at Huaneng Gansu Zhengning Power Plant completed a 72-hour trial run and is now officially operational [1] - The project achieves a CO2 capture rate exceeding 90% with a purity level above 99% [1] - Captured CO2 will be used for geological storage, enhanced oil recovery, green fuel synthesis, and mineralized building materials [1] Group 2: Technological Achievements - The project has overcome key technical challenges in low-energy absorption solvents, large-scale separation towers, energy-efficient supercritical CO2 compressors, and large-scale geological safe storage [1] - It has created multiple "global firsts" and "domestic innovations," achieving 100% domestic production of technology and equipment [1] Group 3: Operational Capabilities - The carbon capture demonstration project features an auxiliary peak-shaving operational mode, allowing dynamic adjustment of the carbon capture system load [1] - This capability ensures that coal-fired units can achieve large-scale carbon capture while maintaining flexible adjustment capabilities, contributing to the safe and stable supply of electricity [1] - The project provides a feasible path for the coordinated development of "low-carbon transformation of coal power + energy security assurance" [1]

Core Insights - China's first offshore CCUS project has been officially put into operation at the Enping 15-1 platform in the Pearl River Mouth Basin, marking a significant advancement in carbon capture, utilization, and storage technology in the country [1][2] - The project aims to inject carbon dioxide at an initial rate of 8 tons per hour into underground reservoirs, which will not only enhance oil production but also achieve carbon dioxide storage [1] - Over the next decade, the project is expected to scale up to inject over 1 million tons of carbon dioxide and drive an increase in oil production by 200,000 tons [1] Company Developments - China National Offshore Oil Corporation (CNOOC) has initiated the Enping 15-1 oil field CCUS project at the end of 2023, with the first offshore CCUS well officially starting drilling in March 2023 [2] - CNOOC has established itself as a leader in offshore CCS and CCUS demonstration projects in China, having developed over 10 pioneering technologies in the field [2] - As of June 2023, the Enping 15-1 oil field CCUS demonstration project has cumulatively injected nearly 200,000 tons of carbon dioxide [2] Industry Context - CCUS technology is becoming an essential method for low-carbon and efficient development of fossil energy, with a growing global focus on this area [2] - Currently, there are 65 commercial CCUS projects worldwide, predominantly onshore, indicating a significant opportunity for offshore projects [2] - The geological conditions in China's offshore sedimentary basins are favorable for carbon dioxide storage, with a potential storage capacity estimated at 25.8 billion tons according to the Ministry of Natural Resources [2]