[Haichuan Overseas Engineering] Two sets of compression units for SAARC’s pressure boosting station project installed in just two days

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From December 12th to 13th, good news came from the construction site of the SABIC compression station project carried out by CNPC First Construction. Thanks to efficient collaborative efforts, the project team completed 4 precise lifting operations within two days, successfully installing the 2 sets of compression units in one go. As a result, all 5 sets of compression units for the project were installed safely and accurately, completing the lifting tasks 2 days ahead of schedule and earning praise from both SABIC as the client and the general contractor. As the core \"heart\" of the entire system, the installation accuracy of the compressor directly determines the operational stability of the system. Each compressor unit consists of a compressor main unit and a gas turbine skid, with a total lifting weight of 109 tons. SABIC sets extremely high requirements for compressor installation: the allowable deviation for anchor bolts is ±3 millimeters, and the allowable deviation for the height of the base plate installation is ±1 millimeter; a installation method that combines the use of no shims with pre-installed anchor bolts is employed. The project team proactively coordinated with Aramco, the PID and PMT teams, as well as the technical teams of the equipment manufacturers. They conducted repeated inspections of the temporary storage area for compressors, the transportation routes, the lifting locations, and the plate installation sites, and optimized the lifting plans on multiple occasions. They carried out all the preliminary tasks to a high standard, including the inspection of the compressor units, foundation acceptance, epoxy grouting for the base plate installation, site cleanup, protection of the finished products, and preparation of various related tools and equipment. This ensured that the bolt holes prepared in the base plates of the compressor units aligned perfectly with the anchor bolts embedded in the top of the foundation, thus achieving the required installation precision.