LONDON – Pulse Structural Monitoring, an Acteon company, has won a contract with National Oilwell Varco (NOV) Arendal in Norway to provide an acoustic mooring line subsea monitoring system to measure mooring line inclination and tension.
The contract is for 12 mooring line subsea monitoring sensors and ancillary topsides equipment, which have been enhanced to meet specific client requirements. The equipment will be installed in the North Sea.
The Pulse system consists of 12 ROV deployable INTEGRIpod acoustic data loggers on the mooring line’s upper section to measure actual inclinations. The MoorASSURE software then regenerates the angles to corresponding tension and horizontal displacement, as well as presence detection of the line. The mooring line sensor array is acoustically linked to an innovative acoustic receiver’s arrangement in the hull of the ship. Calculated data is communicated back to the NOV control system and ship control room.