Core Insights - China National Offshore Oil Corporation (CNOOC) announced that the total length of China's subsea oil and gas pipelines has surpassed 10,000 kilometers, positioning the country among the leaders globally in this field, marking a significant technological advancement after 40 years of development [1][3] Group 1: Technological Advancements - CNOOC has successfully overcome technical challenges related to long-distance multiphase transportation of heavy and high-viscosity oil, as well as the design and installation of subsea pipelines in harsh marine conditions and complex terrains [3] - The company has established a complete technical system for subsea pipeline engineering, encompassing design, construction, installation, emergency response, and maintenance, fostering a highly autonomous industrial chain [3] - Since the 14th Five-Year Plan, CNOOC has enhanced its pipe-laying capabilities, laying over 1,500 kilometers of subsea pipelines, with the maximum operational water depth reaching 1,542 meters, marking a historic transition from shallow to ultra-deep water [3] Group 2: Global Engagement - CNOOC has undertaken over 10 projects in Southeast Asia, the Middle East, and Africa, laying more than 500 kilometers of subsea pipelines, setting multiple industry records for the largest pipe sizes and heaviest single pipes [4] - The company aims to deepen its core technical capabilities in subsea pipeline engineering, improve operational equipment, promote domestic equipment applications, and accelerate the transition to intelligent and digital operations [5]

Core Points - China's offshore oil and gas pipeline total length has successfully surpassed 10,000 kilometers, positioning the country among the world's leaders in this field, marking a significant milestone in the development of marine energy resources and enhancing national energy security [1][4] Group 1 - The achievement is the result of nearly 40 years of technological research and engineering practice, indicating a comprehensive leap in China's offshore oil and gas pipeline engineering technology and equipment capabilities [1][4] - The country has developed the ability to independently construct offshore pipeline projects across all marine areas in China, overcoming technical challenges such as long-distance multiphase transportation of heavy oil and high-viscosity oil, as well as design and installation under harsh sea conditions and complex topography [4] - A complete offshore pipeline engineering equipment technology system has been established, encompassing design, construction, installation, emergency response, and maintenance, fostering a highly autonomous industrial chain [4]