Advances and Prospects of China's Premium Deepwater Drilling and Production Equipment

China is now witnessing vigorous offshore exploration and development， corresponding to an increasing demand for localized offshore equipment. To achieve the goal of high-quality development of premium offshore drilling and production equipment in China， this paper systematically analyzes the advances of China's localized premium deepwater drilling and production equipment in recent years. The performance parameters and structural characteristics of offshore drilling and production equipment independently designed and manufactured by China are introduced， including the deepwater floating drilling platforms/vessels， the “Dream” ocean drilling ship， the “Deep Sea No.1” energy station， and the “Haikui No.1” cylindrical platform， and the landmark achievements in equipment localization are summarized. It is presented that China needs to import supporting key drilling and production equipment， although it has maintained the capability of overall design and manufacturing of deepwater floating platforms/vessels. Moreover， the localization achievements in offshore drilling systems for geological survey， seabed drilling rigs， marine risers， floating compensation systems， subsea production systems， premium offshore tools， and subsea blowout preventer systems are elaborated. It is indicated that China has developed serialized marine drilling riser products， China’s drill string floating compensation systems have facilitated upgrading of domestic aging platforms， and key technologies for subsea Christmas trees have been verified by sea trials. A preliminary technical system and independent capability for localization of premium offshore drilling and production equipment have been formed in China， providing the technical foundation for promoting the industrialization and large-scale development of premium offshore drilling and production equipment. Finally， the gaps of China's premium offshore equipment in automation， intelligentization， self-availability， original innovation， and reliability as compared with other countries are analyzed， and future prospects of the equipment are proposed.