| 摘要 |
The present invention relates to a system for the control and monitoring of surface or subsea hydrocarbon production, comprising production equipment (1a) to which is supplied hydraulic power and electrical power and signals for the control of valves etc. and the monitoring of signals from sensors etc., respectively, said hydraulic power and electrical power and signals being supplied from a fixed or floating monitoring installation (2a), said system supplying power to the subsea electronics units via signal cables (15) which enable several signals to be transmitted simultaneously via the same conductor or pair of conductors. Further the number of selector switches is reduced by arranging the switches (17) in a matrix relative to the solenoid valves (19) to which electrical power shall be supplied. |
