Core Insights - China National Offshore Oil Corporation (CNOOC) announced that the total length of China's subsea oil and gas pipelines has successfully surpassed 10,000 kilometers, positioning the country among the global leaders in this field, marking a significant achievement after 40 years of technological advancements and engineering practices [1] Group 1: Technological Advancements - The subsea pipeline serves as a "lifeline" for offshore oil and gas production systems, connecting various facilities within oil and gas fields and ensuring stable transportation of resources to land terminals [1] - CNOOC has 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 sea conditions and complex terrains [1] Group 2: Project Achievements - Since the beginning of the 14th Five-Year Plan, CNOOC has enhanced its pipeline laying capabilities, completing over 1,500 kilometers of subsea pipeline installations, with the maximum operational water depth reaching 1,500 meters [1] - The total length of China's subsea oil and gas pipelines is equivalent to nearly twice the straight-line distance from the southernmost to the northernmost points of the country, with specifications ranging from 2 inches to 48 inches, covering single-layer, double-layer, and composite pipelines [1] Group 3: International Expansion - In recent years, CNOOC has undertaken over 10 projects in Southeast Asia, the Middle East, and Africa, laying more than 500 kilometers of subsea pipelines, achieving records for the largest pipeline sizes globally and single-layer installations [1] Group 4: Future Plans - CNOOC plans to continue enhancing its core technological capabilities in subsea pipeline engineering, improve operational equipment series, promote the application of domestically produced equipment, and accelerate the transition to intelligent and digital operations [1]

Core 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]

Core Insights - China National Offshore Oil Corporation (CNOOC) announced that the total length of China's subsea oil and gas pipelines has successfully surpassed 10,000 kilometers, marking a significant milestone in the country's marine oil and gas pipeline engineering capabilities after 40 years of technological advancements and engineering practices [1][4] Group 1: Engineering Achievements - The subsea pipeline system is described as the "lifeline" of marine oil and gas production, connecting oil fields and ensuring stable transportation of resources to land terminals [3] - CNOOC has developed a complete technical system for subsea pipeline engineering, including design, construction, installation, emergency response, and maintenance, achieving a high level of autonomy across the entire industry chain [4] - Since the 14th Five-Year Plan, CNOOC has enhanced its pipeline laying capabilities, laying over 1,500 kilometers of subsea pipelines, with the maximum operational water depth reaching 1,542 meters, marking a historic leap from shallow to ultra-deep water [4] Group 2: Technological Innovations - The company has made significant advancements in overcoming technical challenges related to long-distance multiphase transportation of heavy oil and high-viscosity oil, as well as designing and installing pipelines in harsh marine conditions [4] - CNOOC has continuously upgraded its specialized vessels and supporting equipment for pipeline laying, including the development of intelligent monitoring systems and automated welding equipment, significantly improving welding quality and laying efficiency [6] Group 3: Global Contributions - CNOOC has actively participated in energy development projects in countries along the Belt and Road Initiative, laying over 500 kilometers of subsea pipelines in Southeast Asia, the Middle East, and Africa, setting multiple industry records [6] - The company aims to deepen its core technical capabilities in subsea pipeline engineering, enhance the application of domestically produced equipment, and accelerate the digital transformation of its operations to support the construction of a maritime power [7]