Core Insights - The "Deep Sea No. 1" Phase II project has been fully operational since June 25, marking China's largest offshore gas field and a significant step towards large-scale deep-sea oil and gas development [1][2]. Industry Overview - Over 70% of global oil and gas resources are located in oceans, with 40% from deep water. China's South China Sea alone has approximately 2.48 billion tons of oil and 42 trillion cubic meters of natural gas, with about half found in deep water [2]. - The exploration and development of deep-sea oil and gas resources, particularly in the South China Sea, is a long-term and significant growth direction for China [2]. Project Details - The "Deep Sea No. 1" gas field is located 150 kilometers from Sanya, Hainan Province, and has geological reserves exceeding 100 billion cubic meters [2]. - The project has overcome numerous technical challenges associated with deep-water operations, establishing China as a player in the global deep-water oil and gas development arena [3][4]. Technological Innovations - The "Deep Sea No. 1" energy station is the world's first 100,000-ton deep-water semi-submersible production and storage platform, featuring three world-class innovations and 13 domestically developed technologies [4]. - The project has developed a unique operational model combining underwater production systems, shallow water platforms, and deep-water semi-submersible platforms, creating a large-scale oil and gas production facility cluster [6][7]. Production Capacity - The "Deep Sea No. 1" project has a maximum daily production capacity of 15 million cubic meters, with an expected annual output exceeding 4.5 billion cubic meters [7]. - The cumulative production has surpassed 12 billion cubic meters, making it the largest offshore gas field in China and a key supplier for the Guangdong-Hong Kong-Macao Greater Bay Area [7]. Future Prospects - The technological and equipment systems established by the "Deep Sea No. 1" project are expected to facilitate the development of other complex deep-water oil and gas fields in the future [8]. - There are vast areas in the South China Sea awaiting exploration, and the advancements made through this project lay a solid foundation for future deep-sea endeavors [8].