Huan Qiu Wang·2025-09-28 08:33Core Points - China National Offshore Oil Corporation (CNOOC) announced that the total length of China's underwater oil and gas pipelines has successfully surpassed 10,000 kilometers, positioning the country among the world's leaders in this field, marking a significant milestone in enhancing national energy security and resource development [1][3] Group 1 - The underwater pipeline technology and equipment capabilities in China have achieved a comprehensive leap after 40 years of technological research and engineering practice [1][3] - The successful development of long-distance multiphase transportation of heavy oil and high-viscosity oil, as well as the design and installation of underwater pipelines in harsh sea conditions and complex terrains, demonstrates China's ability to independently construct underwater pipeline projects across all marine areas [3] - A complete technical system for underwater pipeline engineering has been established, encompassing design, construction, installation, emergency response, and maintenance, fostering a highly autonomous industrial chain [3]