Core Points - China National Offshore Oil Corporation (CNOOC) has successfully delivered 24 sets of 2000-meter deep international suction anchors for the Mero Phase II project in Brazil, marking a significant achievement in deepwater engineering [2] - The suction anchors, which utilize negative pressure to secure marine facilities, are essential for deep-sea energy development and are recognized for their high efficiency, reusability, and load-bearing capacity [2] - The project represents the largest application depth for suction anchors constructed domestically, with a total structural weight of approximately 2674 tons [2] Technical Innovations - The Mero Phase II suction anchors feature a maximum construction height of 21 meters, a diameter of 8 meters, and a wall thickness of only 25 millimeters, presenting substantial construction challenges [3] - The project team pioneered several construction techniques, including horizontal extension and vertical assembly, and employed advanced technologies such as 3D scanning and finite element simulation to address technical difficulties [3] - The quality assurance rate exceeded 99.9%, with dimensional deviations maintained within 1 millimeter per meter, achieving an industry-leading standard [3] Industry Contributions - CNOOC has been enhancing its core technologies in deepwater oil and gas equipment, successfully constructing several significant platforms, including the world's first 100,000-ton semi-submersible production and storage platform [3] - The company has also delivered multiple large-scale floating production storage and offloading units (FPSOs) internationally, contributing to the global deepwater oil and gas equipment market and promoting high-level cooperation in marine energy [3]