Leading UK offshore engineering company, Osbit Ltd has successfully completed and loaded out £3m worth of well intervention equipment to Helix Energy Solutions, for installation in Schiedam on Helix’s chartered Siem Helix 1 vessel.

The multi-million pound deliveries are a major milestone in a series of projects awarded to Osbit last year, to supply around £11m worth of equipment for the Siem Helix 1, Siem Helix 2 and Q7000 vessels.

The equipment, weighing over 300t in total, consists of a BOP Maintenance and Storage Tower, Intervention Tension Frame and Moveable deck. The three systems were installed on to Siem Helix 1 in early August, ahead of the vessel being deployed in Brazil on a long-term well intervention services charter for Petrobras. A second suite of identical systems will follow later in the year for the Siem Helix 2 vessel.

The Maintenance Tower offers a safe environment to assemble and maintain subsea equipment, incorporating a 125-tonne capacity lifting system to enable progressive assembly of stack modules.

The Intervention Tension Frames (ITF) represents a significant advance in safety and operability of coiled tubing and wireline operations on the vessels.

Continuous safe access to the ITF is possible via telescopic gangway, also designed and built by Osbit. The gangway links the ITF to the Maintenance Tower and removes the need for engineers to use rope access methods to operate the well intervention systems mounted within the ITF.