Heavy Lift company Jumbo Offshore announced it has completed the hooking-up of the Hilli Episeyo, Golar LNG’s first dedicated floating liquefied natural gas (FLNG) unit, to the subsea anchor system, umbilical and gas riser, off Cameroon.
The company also executed the previous phase of the Hilli Episeyo project, involving the transportation and installation of a soft yoke anchor system.
After the mooring system installation, the Jumbo team’s attention was shifted towards the second part of the project with a focus on project management & engineering, subcontractor management, charter of diving support vessel, and Diving Support Vessel.
Golar was set to subcontract the towing spread of the Hilli Episeyo as well as the station keeping spread. The base requirements for the Hook-up phase was to charter a Dive Support Vessel (DSV) capable of accommodating all project crew, able to work in DP2 mode and stay in position on a 4-point-mooring system. The latter was required to allow divers to step off further from the DSV.
The hook-up of the Soft Yoke was carried out with the help of lift bags. Large bags were connected to the center tank and inflated by divers. This reduced the weight of the yoke. With the small winches on the Hilli Episeyo, Jumbo crew were able to connect the chains to the dedicated slots on the bow of the Hilli.