COOEC(SH:600583) Zhong Guo Hua Gong Bao·2025-08-13 05:47Group 1 - The successful installation of the Huizhou 25-8DPPB platform's jacket marks a significant advancement in China's deepwater jacket installation technology, enhancing the country's offshore oil and gas equipment manufacturing capabilities and ensuring energy security [1][2] - The Huizhou 25-8 oil field is located approximately 120 kilometers southeast of Shenzhen, with a water depth of about 102 meters. The new platform integrates oil, gas, water treatment, and power generation functions, optimizing resource utilization [1] - The jacket structure consists of 8 legs and 12 skirt piles, standing at a total height of 116 meters, equivalent to a 40-story building, with a base area of 4,800 square meters, comparable to 12 standard basketball courts, and weighing around 12,000 tons, equivalent to 10,000 family cars [1] Group 2 - The jacket platform is the most widely used offshore natural gas production facility globally, consisting of a lower jacket and upper production facilities, serving as the foundation for supporting the massive structure of offshore oil and gas platforms [2] - The installation process faced challenges due to frequent typhoons and strong waves in the sea area, increasing the complexity and risk of the operation [2] - The installation utilized sliding launch technology, leveraging the jacket's own weight and hydraulic jacks to smoothly slide the jacket from the "Ocean Oil 229" vessel into the sea, with real-time adjustments made for precise positioning [2] Group 3 - In recent years, China's large jacket installation capabilities have significantly improved, forming a comprehensive technical system covering design calculations, simulation, transportation, sliding launch, and precise positioning, ranking among the top globally in terms of construction scale, individual weight, and total tonnage [3] - Successful implementations of large jacket installations, such as Liwan 3-1 and the "Haiji" series, have provided solid support for the development of China's deepwater oil and gas resources [3]