Ocean Rig

Customer: Ocean Rig
GS-Hydro solution: Hydraulic piping solutions for Eirik Raude ultra-deepwater semi-submersible rig
Year: 2012
Segment: Offshore

One of the world’s largest and most capable ultra-deepwater semi-submersible rigs, Eirik Raude, saw ten years of continuous operation in harsh environments. In 2012 GS-Hydro delivered the renewal of piping systems together with a complete refurbishment of the fifth-generation drilling unit. Supporting National Oilwell Varco, Inc., GS-Hydro also replaced most of the hoses for the drilling equipment onboard.

Ultra-deepwater semi-submersible rig

Eirik Raude remains one of the world’s largest and most capable ultra-deepwater semisubmersible rigs afloat. Together with the mandated 10-year class survey, GS-Hydro did a complete refurbishment of the fifth-generation drilling unit. As one of the suppliers of the original hydraulic piping, GS-Hydro was contracted by the rig’s owner, Ocean Rig UDW Inc., for the renewal of the piping systems. In addition to the piping project, GS-Hydro also supported National Oilwell Varco, Inc. in replacing most of the hoses for the drilling equipment onboard.

Piping renewal and hose production

The GS-Hydro offering proved to be flexible – including sourcing unplanned material rapidly, directly from manufacturers when needed. All-in-all, the GS-Hydro team changed-out nearly 3 kilometers of piping, including installation of piping in the moonpool area. The hydraulic hose production was put into motion already in African waters together with GS-Hydro and National Oilwell Varco, Inc. (NOV) personnel. Several containers, including a mobile hydraulic hose production unit were shipped from Stavanger to Africa and production was already in full swing while the rig sailed to port in Las Palmas for further maintenance.