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On October 30, the Yan’an natural gas storage and peak-shaving project, along with the associated LNG facilities, which were under the construction of the Yanchang Petroleum Refining Project Command, was completed. Once the project is put into operation, it will significantly enhance the capacity of the Yan’an revolutionary old area to ensure a stable supply of natural gas during winter peak periods. This project is a key project at the provincial and municipal levels, as well as a livelihood project through which Yanchang Petroleum fulfills its social responsibilities. Since the construction began on July 11, 2024, the project team has worked hard to meet deadlines, ensure progress, maintain safety, guarantee quality, and facilitate coordination. In the face of numerous difficulties and challenges, we must uphold the spirit of an iron army, work together to overcome obstacles, develop detailed plans with clear tasks for each stage, and innovate in our working methods to ensure that the compressors and other equipment are installed as scheduled. At the critical stage of lifting the LNG storage tanks, the project construction team innovatively introduced a digital monitoring system that transmitted data such as welding temperature and current fluctuations in real time to the command platform. During the 135-minute lifting process, monitoring with millimeter-level precision ensured that the domes of all 4 storage tanks were successfully fitted in one go. The bimetallic storage tank was constructed using the upright installation method, and the more than 60,000 meters of welds achieved a 100% qualification rate in flaw detection. Wang Yibiao, the person in charge of the Yan’an LNG project, explained that the project includes 4 peak-shaving gas storage tanks with a capacity of 50,000 cubic meters each, a gasification unit with a capacity of 40,000 cubic meters per hour, and an LNG liquefaction unit with an annual capacity of 400,000 tons. Together, these facilities will enable the processing of up to 2 million cubic meters of natural gas per day, thereby serving as a stabilizing force for regional energy security.