Ulstein derrick lay vessel design for Petrofac

Sharjah-based Petrofac has ordered the Petrofac JSD 6000 deepwater derrick lay vessel, a customised Ulstein SOC 5000 developed by Dutch design company Ulstein Sea of Solutions.

The 215.9m-long vessel will be constructed at the ZPMC yard in China and be available for construction and installation activities in early 2017.

Edwin van Leeuwen, managing director at Ulstein Sea of Solutions, said: “We are very pleased that Petrofac selected us for designing their first offshore construction vessel. We feel it is a recognition of our design capabilities for this high end market. It is the third customised version of our successful Ulstein SOC 5000 design after the Seven Borealis and Aegir, which are both already in operation.”

The dynamically-positioned Petrofac JSD 6000 is a unique, innovative design featuring J-Lay, S-Lay and heavy lift capabilities, enabling it to serve deepwater and SURF markets, as well as shallow water EPCI projects.

The design features an NOV revolving main crane with 5,000mt lifting capacity. The vessel has a combination of a 600mt Remacut S-lay system, via a centre firing line below main deck, and a 2,000mt IHC EB J-lay system via a moon pool. The double deck configuration, a feature in Ulstein Sea of Solutions designs, allows for a large, unobstructed deck area and below deck pipe fabrication.

“The success of the project comes for account of the close co-operation between Petrofac’s team and our project team, managed by Sjaak Jan Jiskoot,” added van Leeuwen.