Workflow
首个深水油田二次开发项目迎周岁
Zhong Guo Hua Gong Bao·2025-09-23 02:25

Core Insights - The successful production of the Liuhua 11-1/4-1 oil field secondary development project marks a significant achievement for China National Offshore Oil Corporation (CNOOC) in overcoming the challenges associated with developing reef limestone oil fields, which are known for their high difficulty level [2] Group 1: Project Overview - The Liuhua 11-1/4-1 oil field secondary development project has produced over 700,000 tons of crude oil in its first year, exceeding expectations [2] - This oil field is China's first deepwater oil field and has the largest proven geological reserves of reef limestone oil in the country [2] Group 2: Technical Achievements - CNOOC has developed a series of water control and oil stabilization technologies specifically for offshore reef limestone oil fields, which have significantly improved the recoverable reserves and recovery rates [2] - The Liuhua 11-1 oil field has produced over 20 million tons of crude oil since its commissioning in 1996, but the extraction rate remains low at only 12.84%, indicating that approximately 140 million tons of crude oil reserves are still untapped beneath the seabed [2]