The WOCS are used to operate and test the subsea X-mas tree during installation and could also be used during well interventions. Conventional solutions deliver hydraulic fluid from surface to the controlling element(valves) on the seabed which often causes large hydraulic umbilical’s, reels and containers that occupy precious deck space.

The new subsea and remote workover control system overcomes these challenges by moving to a fully electric downline and locating the control system on the seabed. The location of the pumps, electronics modules and with the option for subsea battery storage and wireless communication will improve operational flexibility, runtime and valve response time. Other benefits are related to removing the need for umbilical clamped to the landing string, smaller reel for electric cable only and smaller footprint surface control unit.

Further integrating the control system to support multi-field and multi-mode, we can use less equipment with fewer people on board operating the system. The system lend itself to easier using other remote support functions even from shore that can reduce the staff offshore further while maintaining the competence involved in the operation.

People attending this paper will learn how new generation of WOCS will simplify offshore operations for SPS installations and interventions while reducing cost, risk and environmental footprint.