Intervention & Workover Control Systems (IWOCS)

HomeManufacturingIntervention & Workover Control Systems (IWOCS)
HomeManufacturingIntervention & Workover Control Systems (IWOCS)

Our Intervention and Workover Control Systems (IWOCS) facilitate intervention and completion work on wells through existing subsea systems or control of intervention tooling. This enables you to further install and work on your subsea equipment without incurring unnecessary downtime. 

IWOCS at a glance

System Specification

•  High working pressures up to 1379barg / 20,000psig
•  Bladder and/or piston accumulators (PED, ASME VIII Non or "U" stamped, AS 1210)
•  Electrical or pneumatic control options
•  Integral autonomous MCC and PLC
•  Integral or standalone reservoirs, size to suit application
•  HVAC systems available for low and high ambient temperature environments


•  316 stainless steel or carbon steel enclosed or open framed construction
•  Wide range of tube fitting types, e.g. twin ferrule compression, MP coned & threaded and Parker Hannifin MPI™
•  Wide range of materials and exotics available, e.g. 316/316L, 6Mo, Incoloy 625, Incoloy 825, 904L, Super Duplex, Duplex
•  Electric and/or pneumatic pumps suitable for use with mineral oil or water glycol based fluids
•  Environmental loadings can include: vessel motions, wind and blast loadings
•  Customer stab plate and connector requirements integrated into unit


•  Safety Integrity Level up to SIL3
•  Safe area and hazardous environments (Zone 1/2, Class 1 Division 1/2), to ATEX, IECEx or NEC (NFPA 70)
•  Standard temperatures design in accordance with EN 13628-6, systems also available with Extended and Arctic ratings
•  Design and certification to DNV2.7-1 and DNV2.7-3
•  When required designed to the relevant NORSOK standards

All systems are designed according to your individual requirements or our standardised design philosophies - always incorporating safety, environmental and statutory requirements.



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Wellhead Control Panels:
Wellhead Control Panels

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