Sinopec Southwest Branch wins bid for China’s first transcritical carbon dioxide energy storage project

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On January 21, the Southwest Branch of China National Petroleum Engineering Corporation won the bid for China’s first transcritical carbon dioxide (CO₂) energy storage project – the Jilin Oilfield Compressed CO₂ Energy Storage Technology Demonstration Project. This marks the transition of CO₂ energy storage technology from theory to practical application, opening up a new technical pathway for China’s energy industry to achieve its \"dual carbon\" goals. This project is a key initiative under China National Petroleum Corporation’s plan to achieve carbon peak in its upstream operations. It serves as a model project for the Jilin Oilfield to pursue a green and low-carbon transformation as well as to integrate new energy sources with oil and gas operations. Additionally, it utilizes the pressure energy of supercritical CO₂ pipelines to achieve high integration with CCUS technologies, making it an important project within the CCUS industry chain. With the completion of this project, a complete industrial chain ecosystem for \"carbon dioxide capture, storage, oil displacement, and sequestration\" will be established, which can effectively enhance the capacity of Jilin Oil Field to utilize renewable energy as well as its overall energy efficiency. At present, the Southwest Branch is conducting research on the key technologies for 100MW-class carbon dioxide energy storage power plants, and will systematically carry out the thermodynamic design of the carbon dioxide energy storage working fluid, system integration, and selection of key equipment.