Core Insights - The successful installation of the Weizhou 11-4 CEPD platform marks a record for the largest and heaviest offshore oil and gas platform in the Beibu Gulf region, with a height of 49.5 meters and a weight exceeding 14,000 tons [1][2] - The platform integrates drilling and oil and gas processing functions, featuring 134 key equipment sets and a 95% localization rate for core components, significantly reducing engineering investment and annual maintenance costs by over 30% [1][2] Group 1 - The Weizhou 11-4 CEPD platform is a multifunctional drilling and production platform, designed and constructed by China National Offshore Oil Corporation (CNOOC), and utilizes floating installation technology due to its size exceeding domestic floating crane capabilities [1][2] - The project employs innovative design and construction techniques, including a slanted leg structure and transition section for the platform's foundation, enhancing load transfer and precise positioning during installation [2] - The platform will serve as a critical facility for the Weizhou 11-4 oil field, which is China's first independently developed oil field in the South China Sea according to international standards, contributing to the establishment of a third gathering center in the Weizhou oil field cluster [2]