RAVVA FIELD LAYOUT
THE SYSTEM MAKES USE OF
’S VERY HIGH RELIABILITY COMMUNICATIONS LINKS TO CONTROL THE PLATFORM WITH A SPURIOUS SIGNAL REJECTION RATE OF AT LEAST 10 16 DATA EXCHANGES.
THIS ENSURES THAT THE RELIABILITY OF CONTROL FOR PLATFORM SHUTDOWN IN CASE OF EMERGENCY IS EXTREMELY HIGH.
SUPPLIED THE ELECTRONIC CONTROL SYSTEM ON THE PLATFORM, TOGETHER WITH THE HYDRAULIC SYSTEM TO OPERATE THE VALVE ACTIVATORS. DATA IS SENT FROM THE PLATFORMS VIA AN INTRINSICALLY SAFE RADIO LINK.
THE CONTROL STATION USES
’S SCADAPLUS SOFTWARE AS THE SUPERVISORS INTERFACE. THE SYSTEM PROVIDES SEQUENCED PROCESS AND EMERGENCY SHUTDOWN LOGIC TO CONTROL THE SUBSEA, MASTER AND WING VALVES OF THE WELL HEAD. AN ENHANCEMENT ALLOWS THE CHOKE VALVES TO BE VARIED TO ADJUST THE FLOW OF CRUDE PRODUCT.