中国海油"深海一号"二期天然气开发项目经理刘康说，"深海一号"二期项目在业内首创"水下生产 系统+浅水导管架平台+深水半潜式平台远程操控系统"的开发模式，分南、北、东3个井区部署12 口水下气井，新建1座导管架平台、1套水下生产系统、5条海底管道、5条深水脐带缆，构建起了 地理距离跨度超过170公里、作业水深跨度超过1500米的超大规模油气生产设施集群。 目前，"深海一号"大气田已经达到最高产能设计状态，年产气量有望超过45亿立方米。气田所产的 深水天然气通过香港、海南三亚、广东珠海等多地的陆岸终端流向粤港澳大湾区和海南，并接入全 国天然气管网。 刘康说，"深海一号"大气田两期项目建设搭建起的生产设施集群和深水气田开发建设技术体系，未 来有望带动海南海域宝岛21-1等深水复杂油气藏开发，将进一步提高海洋油气对国内能源供给的 支持力度。 （戴小河 黄昊宇） （来源：新华社） 中国海油25日宣布，公司在南海水域的"深海一号"大气田二期项目全面投产，标志着我国最大海上 气田建成。 "深海一号"大气田分一期和二期开发建设（一期于2021年6月投产），探明天然气地质储量超 1500亿立方米，最大作业水深超1500米，最 ...

Core Viewpoint - China National Offshore Oil Corporation (CNOOC) announced the full production of the "Deep Sea No. 1" Phase II project, marking the completion of China's largest offshore gas field [1][3]. Group 1: Project Overview - The "Deep Sea No. 1" gas field has a total proven geological reserve of over 150 billion cubic meters, with the maximum operational water depth exceeding 1,500 meters and well depths over 5,000 meters [1][3]. - The Phase II project faced extreme geological conditions, with the highest formation temperature reaching 138 degrees Celsius and maximum pressure exceeding 69 MPa, which is equivalent to 1,000 times the working pressure of a household pressure cooker [3]. Group 2: Technological Innovations - The project introduced an innovative development model combining underwater production systems, shallow water jacket platforms, and deep-water semi-submersible platform remote control systems [3]. - A total of 12 underwater gas wells were deployed across three well areas (south, north, east), along with the construction of one jacket platform, one underwater production system, five subsea pipelines, and five deep-water umbilicals, creating a large-scale oil and gas production facility cluster spanning over 170 kilometers [3]. Group 3: Production Capacity and Impact - The "Deep Sea No. 1" gas field has reached its maximum design capacity, with an expected annual gas production of over 4.5 billion cubic meters [3]. - The produced deep-water natural gas will flow to the Guangdong-Hong Kong-Macao Greater Bay Area and Hainan through various land terminals, integrating into the national natural gas pipeline network [3][4].