Core Insights - China National Offshore Oil Corporation (CNOOC) announced significant progress in the construction of the Weizhou 11-4 CEPD platform, marking a key milestone in the project [1] - The Weizhou 11-4 oil field is China's first independently developed oil field in the South China Sea, adhering to international standards [1] - The platform will enhance the oil field's capacity, establishing it as the third gathering center in the Weizhou oil field cluster [1] Company Developments - The Weizhou 11-4 CEPD platform is the heaviest and largest offshore oil and gas platform in the northern Gulf of China, standing at 49.5 meters tall and weighing over 14,000 tons [1] - The platform integrates drilling and oil and gas processing functions, featuring 134 key equipment installations and utilizing advanced separation technology [1] - The project employs two sets of domestically developed 25 MW power generation units, achieving a 95% localization rate for core components, which reduces investment costs and maintenance expenses by over 30% annually [1] Industry Challenges and Innovations - The installation of the Weizhou 11-4 CEPD platform faced significant challenges due to the variable weather and harsh sea conditions in the northern Gulf of China [2] - Innovative construction techniques were applied, including upgrading the platform's foundation to a "slant leg structure + transition section" to facilitate precise positioning during load transfer [2] - As of now, China has completed the floating installation of 52 large offshore platforms, with a maximum floating capacity of 32,000 tons and a total floating weight exceeding 700,000 tons, overcoming key technical challenges in various floating installation scenarios [2]