Remote Control and Management of Offshore Water Injection Well

More elaborate and intelligent digital oilfield based on advanced communications network will be the future trend.For the digital oil field development, the sensor technology, automation technology and information technology have been introduced to develop the remote control and management system for offshore water injection well.The developed system consists of the underground components, offshore platform components and land base components.DC power line carrier communication was used to achieve centralized, efficient and fine management of multiple wells and layers.The system’s abnormality alarm protection allows for formation and wellhead overpressure alarm, and enables automatic shutdown of nozzle to ensure water injection safety.Field application results showed that the ground control device and downhole intelligent testing and adjustment working string have good communication.Water injection volume could be monitored and regulated on the ground.The water injection pressure had met the requirement of injection allocation.The developed system had laid the foundation for the development of the digital oilfield.