Development of subsea production system and its control system

Subsea production system is a key technique in the development of oceanic oil/gas resources, which has experienced a long-time evolution. Control system is the core technique of subsea production system, which is indispensable in subsea production. We introduce eight typical control architectures of different structures, including direct hydraulic control system, piloted hydraulic control system, sequenced hydraulic control system, direct electro-hydraulic control system, multiplexed electro-hydraulic control system, all-electric control system, powered autonomous remote control system and integrated control buoy. We make a comparison of the above eight control techniques in terms of emerging background, constituents, application ranges, characteristics, advantages and disadvantages. Finally, the development trends of the subsea production system are presented.