Helix Energy Solutions Group has contracted Huisman for the delivery of a Well Intervention System onboard Helix’s new build semi submersible Q7000. The system is based on the Multi Purpose Tower (MPT) design and will be built at Huisman's facility in China.
The fully integrated 800 mt Well Intervention System will be capable of handling the intervention stack, the high pressure riser and other components.
Multi Purpose Tower
The Huisman Multi Purpose Tower has the same functionality as a normal derrick, but offers improved accessibility to the well center, which allows for improved handling procedures that increase efficiency and safety.
The accessibility to the well center and the small footprint of the MPT are well suited for well intervention and subsea installation services. Subsea equipment can be skidded into the well center from three sides, offering enhanced flexibility.
Heave Compensation
The MPT's active heave compensation hoist system allows for safe landing of equipment at the seabed while the passive heave compensation system provides a safe and redundant means to supply top tension to the risers.
A guide trolley, travelling the entire length of the tower, guides the subsea modules during lifting operations. The system also features multiple transfer hatches that can be used to move equipment into the well center, and a skiddable work floor covering the moonpool flush with main deck.
Skiddable Work Floor
The skiddable work floor allows large subsea modules to be deployed, without the need for a raised work floor. When large objects need to pass the moonpool the work floor can be skidded aside. In closed position, the work floor is flush with the main deck, which significantly reduces HSE risks and improves equipment handling on deck.
Knuckle Boom and Pedestal Mounted Crane
In addition to the Well Intervention System Huisman will also supply a 150 mt Knuckle Boom Crane and a 160 mt Pedestal Mounted Crane.
