近日，我国首个深水油田二次开发项目——流花11-1/4-1油田全面投产，标志着我国在深水油气田高效开发和老油田挖潜增效方面取得重大突破。该项目位于南海东部海域，水深约300米，通过采用‘新老设施协同、滚动开发’的创新模式，将原有停产平台与新建水下生产系统有机结合，实现资源最大化利用。项目投产后，预计高峰年产油量可达80万吨，显著提升区域油气供应能力。同时，该工程攻克了深水水下井口安装、智能注水、远程控制等多项关键技术，为我国后续深水老油田二次开发提供了可复制、可推广的技术路径和工程经验。这一成果不仅增强了国家能源安全保障能力，也彰显了我国海洋石油工业向深水、绿色、智能化方向迈进的坚定步伐。
Recently, China’s first deepwater oilfield redevelopment project—the Liuhua 11-1/4-1 field—has achieved full production, marking a significant breakthrough in efficient deepwater hydrocarbon development and revitalization of mature fields. Located in the eastern South China Sea at a water depth of approximately 300 meters, the project employs an innovative ‘integrated old-and-new infrastructure with phased development’ approach, seamlessly combining existing decommissioned platforms with newly installed subsea production systems to maximize resource utilization. Upon full operation, the project is expected to reach a peak annual output of 800,000 metric tons of crude oil, substantially enhancing regional energy supply capacity. The project has also overcome key technical challenges, including deepwater subsea wellhead installation, intelligent water injection, and remote control systems, establishing a replicable and scalable technical and engineering model for future redevelopment of aging deepwater fields in China. This milestone not only strengthens national energy security but also underscores China’s commitment to advancing its offshore oil industry toward deeper waters, greater sustainability, and smarter operations.
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