Core Viewpoint - The introduction of domestically produced underwater Christmas trees by Weifang Ocean Equipment Manufacturing Co., Ltd. marks a significant advancement in China's offshore oil and gas industry, reducing reliance on imports and enhancing safety and efficiency in underwater production systems [5][6]. Group 1: Product Overview - The underwater Christmas tree is a control device for oil wells, managing the flow and pressure of fluids from deep underground, and is critical for preventing blowouts and leaks [3]. - This equipment consists of over 1,300 components and weighs 25 tons, highlighting its complexity and importance in underwater production systems [3]. Group 2: Technological Advancements - Weifang has achieved over 90% localization in the design, manufacturing, integration, and testing of the underwater Christmas tree, breaking the previous import dependency [5]. - The company is now one of only four manufacturers globally capable of designing and producing underwater Christmas trees, having successfully implemented them in 11 wells in Bohai and South China Sea oil fields [5]. Group 3: Production and Impact - The first two units of the underwater Christmas tree have been operational in Bohai oil field for three years, with a single well producing 310,000 cubic meters of gas per day, sufficient for 1,500 households for a year [5]. - The technology has received high recognition from CNOOC and expert evaluations, indicating its reliability and effectiveness in the field [5]. Group 4: Future Plans - Weifang is currently developing a 1,500-meter deep-water underwater Christmas tree, which is in the integration testing phase, and is also planning for a 2,000-meter ultra-deep-water version [6]. - The company aims to achieve complete autonomy in underwater production systems and expand its market presence across China's offshore oil fields and globally [6].