HMC installs Shell’s Perdido topsidesProjects and Operations // March 20, 2009
Thialf is one of only two vessels capable of lifting the Perdido topsides.
Heerema Marine Contractors (HMC) has completed installation of the 9,500 tonne topsides and living quarters atop the floating Spar of the Shell Perdido project.
The installation took place in a water depth of almost 2,500m in the Gulf of Mexico.
HMC’s Thialf is one of only two vessels in the world capable of lifting the 9,500 tonne topsides.
The Perdido project, which Shell operates on behalf of partners BP and Chevron, set several records such as the installation of the deepest Spar mooring system and the deepest Pipe Line End Termination yet at 2,950m.
HMC Project Director Eric Romijn said: “Earlier in the project, another HMC vessel, Balder, carried out the Spar and the subsea installation, consisting of nine suction piles and polyester mooring lines, five flowlines, one water injection line and three Steel Catenary Risers necessary for the project."
"The nine polyester mooring lines averaging more than two miles in length now hold the 50,000-ton floating structure in place, which will be nearly as tall as the Eiffel Tower when fully operational.”
René de Koeijer, Perdido project manager for HMC, said: “The kick-off of the engineering phase for Perdido was in June 2006 and the offshore installation part started in June 2008. Working in ultra deep water meant we had to upgrade several parts of our equipment.”
The Perdido Spar facility is located in the Gulf of Mexico, some 240km from Corpus Christi and 290km from Galveston. The nearest platform is 130km away.