Huan Qiu Wang·2025-12-14 00:52Core Viewpoint - The successful full production of the second development project of the Liuhua Oilfield marks a significant advancement in China's deepwater complex reservoir development, achieving a record daily crude oil output of 3,900 tons and expected to exceed one million tons next year [1][3]. Group 1: Project Overview - The Liuhua Oilfield second development project consists of two oilfields, Liuhua 11-1 and 4-1, located at an average water depth of 305 meters, featuring a deepwater jacket platform and a cylindrical offshore oil and gas processing facility [1][5]. - Since the first production wells were put into operation in September last year, the project has produced over 900,000 tons of crude oil [1]. Group 2: Technological Innovations - The project employs innovative development models using deepwater jacket platforms and cylindrical floating production storage and offloading units, creating a stable oil-water control technology system [7][14]. - The "Haiji No. 2" platform, as the core equipment of the project, integrates multiple leading global technologies and is a symbol of China's autonomous and intelligent marine engineering equipment [7][9]. Group 3: Production Efficiency - The project has designed 32 production wells with a total drilling depth exceeding 75,000 meters, achieving a significant increase in crude oil production by over 190,000 tons through advanced drilling technologies [11]. - The implementation of new extraction processes and construction methods has effectively improved the oil recovery rate and extraction efficiency, extending the oilfield's lifespan by 30 years [14]. Group 4: Industry Impact - China's deepwater oil and gas exploration and development capabilities have made historic leaps, becoming one of the few countries capable of independently conducting deepwater oil and gas exploration [15][17]. - The deepwater oil and gas production capacity has surpassed 12 million tons of oil equivalent, significantly contributing to national energy security [17].