Core Insights - The Dongfang 13-3 area project has officially commenced production, marking a significant advancement in China's offshore oil and gas resource development, enhancing national energy security and promoting the development of new marine energy productivity [1] Project Overview - The Dongfang 13-3 area project is located in the Yinggehai sea area south of Hainan Island, characterized by high temperature, high pressure, and low permeability gas reservoirs, making economic development challenging [1] - The project team deployed six efficient development wells and utilized advanced wellbore designs such as long horizontal wells and multi-branch wells to enhance single well productivity [1] Technological Innovations - The project employed pressure-controlled drilling technology for efficient drilling operations and introduced a "land-based vertical construction + offshore hoisting" model, creating a standardized technical system to reduce construction costs [1] - A new unmanned wellhead platform integrates digital technologies such as smart lighting, intelligent inspection, and remote control, enabling fully remote production [1] Infrastructure Development - The project includes the construction of two subsea pipelines and one cable, facilitating interconnectivity of major gas fields in the Hainan sea area, which enhances the reliability of the underwater energy transportation network around Hainan Island [1]