Commencement of Yanjiang Petroleum’s million-ton full-process integrated CCUS project

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In 2026, the 25th National \"Safety Production Month\" will focus on the importance of safety for everyone and the need for everyone to know how to respond to emergencies, as well as on identifying and addressing potential risks. Wang Xiangzeng, an academician of the Chinese Academy of Engineering, chief scientist, and chief geologist at Yanchang Petroleum Group, explained that the total investment in this project is 1.64 billion yuan. This money will be used to capture and purify the high-concentration carbon dioxide present in the exhaust gases from the low-temperature methanol washing units at Yanchang Yuenenghua Company, located in the Jingbian Industrial Park. The purified carbon dioxide will then be transported via pipelines in a supercritical state to three oilfield areas: Tiancibay, Yangmijian in Jingbian, and Ansa Huaziping in Yan’an, where it will be used for oil displacement and storage. Upon completion, it will become the first million-ton-scale, full-process integrated CCUS project in the Ordos Basin to be built independently by a single energy company, providing a replicable and scalable \"Yan’an model\" for the low-carbon utilization of fossil fuels. 　　For the carbon capture phase of this project, Yueneng Chemical will build a new carbon dioxide purification and compression station with an annual capacity of 900,000 tons. This station will use compression and dehydration processes, resulting in low energy consumption and high efficiency for carbon capture; the cost of capturing one ton of carbon dioxide is expected to be around 100 yuan ； 146 kilometers of new carbon dioxide transmission pipelines will be built for the carbon transportation network, of which 111 kilometers are part of the main pipeline. Additionally, one primary station (hub station), one distribution station, and one terminal station will be constructed. The transmission capacity for carbon dioxide is 2.8 million tons per year (including capacity reserved for future projects) ； In the carbon utilization phase, carbon dioxide will be sent to the Huaziping oil field area of Xingzichuan Oil Production Plant, as well as the Tiancibay and Yangmijian oil field areas of Jingbian Oil Production Plant, where it will be injected into low-permeability tight oil reservoirs to improve oil field recovery rates. The capture phase of this project is expected to be completed by the end of 2026, while the pipeline transportation and injection phases are scheduled to be finished by the end of June 2027. The project plans to sequester tens of millions of tons of CO2 injected over 20 years, with an expected increase in oil production of 1.1728 million tons and a reduction in water usage for oil extraction by 1.2 million tons. This is of great significance for environmental protection and high-quality economic development in the semi-arid and water-scarce areas of northern Shaanxi. 　　The million-ton full-process integrated CCUS project is being constructed by the Pipeline Transportation Company of Yanchang Petroleum Group. Lei Xiaocheng, the Party secretary and executive director of the company, said that they will focus on safety throughout the entire process, improve quality in all aspects, make every effort to accelerate progress, and control costs at every detail. Strictly implement the safety responsibility system for project construction, and leverage technology to enhance project safety management ； Adopt reliable new processes and technologies to create high-quality and excellent projects ； Scientifically optimize the construction plan and methods to ensure the project is completed on schedule and put into operation smoothly. 　　The reporter learned that Yanchang Petroleum has 4 coal chemical parks and 12 low-permeability tight oil fields in northern Shaanxi, where oil, gas, and coal resources coexist; this provides unique advantages for carrying out research and practical applications of CCUS technology. Since 2007, Yanchang Petroleum has made continuous efforts by leveraging its advantages such as a complete industrial chain, high degree of source-matching, low capture costs, favorable sequestration conditions, and great sequestration potential. It has taken part in 14 major CCUS-related scientific and technological research projects as well as international cooperation projects, and has developed an integrated technical system covering the entire process of carbon dioxide capture, oil displacement, fracturing, sequestration, and safety monitoring. Two theoretical insights and four core technical achievements have been created, which have received wide recognition from the international community, laying a solid foundation for the large-scale application of CCUS technology.