Construction of Yanjiang Petroleum’s million-ton carbon capture project begins

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On December 25, 2025, the million-ton carbon capture project of Yanchang Petroleum began construction in the Yueneng Chemical Industry Park in Jingbian, Yulin, Shaanxi. Carbon dioxide captured from coal chemical plants will be used for oil field flooding, thereby enabling the sequestration and utilization of carbon dioxide. This is also the first dedicated pipeline project of Yanchang Petroleum Group for transporting high-purity carbon dioxide. As a key construction project of Yanchang Petroleum Group, the carbon dioxide capture project is a vital component for improving the recovery rate of Yanchang Petroleum’s oil fields with production capacities of tens of millions of tons, as well as for supporting related projects. It is planned to build a carbon dioxide capture facility with an annual processing capacity of around 900,000 tons; this facility will use carbon dioxide generated as a by-product of the low-temperature methanol washing unit in Yueneng Chemical’s methanol production system as raw material, and after capture and treatment, it will produce high-purity carbon dioxide gas. The total investment in the project is 340 million yuan, and completion is expected by October 2026. In addition to carbon dioxide capture, projects for the transport and utilization of carbon dioxide will also be established in the future. These include 145 kilometers of dedicated carbon dioxide pipelines (of which 111.6 kilometers are main pipelines with a diameter of DN400, 27.4 kilometers are branch pipelines with a diameter of DN300, and 6 kilometers are branch pipelines with a diameter of DN200). There will also be one main station, one distribution station, and one terminal station, with a designed gas transmission capacity of 2.8 million tons per year. Once fully built, the carbon dioxide product gas is transported via dedicated pipelines to three injection areas in the Yanchang Oilfield, namely Yangmijian, Tianciwan, and Ansa Huaziping, where it is injected underground to drive oil extraction; a total of 293 gas injection wells are involved in this process. Achieving carbon dioxide sequestration and utilization while improving oil recovery rates will effectively reduce regional carbon emission intensity, providing important support for the efficient and sustainable development of oil fields.