Ezra Holdings Limited's subsea construction division, EMAS AMC, has been awarded a contract by ABB, pursuant to an arrangement of strategic cooperation for subsea installation, for the installation of subsea power cables. This is part of ABB's second contract with Statoil, to supply subsea HVDC Light transmission systems to the Troll A platform in the North Sea.
The Troll A concrete deepwater structure is the world's largest natural gas production platform at 1,552 feet (473 meters) tall and weighing 1.2 million tons. It is also the tallest structure ever to be moved by mankind. The platform can produce as much as 120 million cubic meters of natural gas per day and contains approximately 40 percent of the natural gas reserves on the Norwegian Continental Shelf.
"We are pleased to have been awarded the subsea power cable installation job at Troll. This demonstrates EMAS AMC's ability to deliver high-end installation services catering to the offshore energy industry by utilizing our advanced installation assets and strong engineering capabilities," said Svein Haug, Regional Head for EMAS AMC Europe and Africa.
The scope of work for EMAS AMC is to install one HVAC subsea cable and two circuits of HVDC subsea cables from Troll A to the land station, Kollsnes. The platform has received power from shore since 2005. The increase in power provided by the new cables will provide power to run two compressor drive systems, which will improve production capacity and extend the lifespan of the platform.
Cable installation operations will be performed during 2Q 2014, using EMAS AMC's Lewek Connector (formerly named AMC Connector), currently the world's largest cable installation vessel in terms of size and payload capacity. EMAS AMC currently has a long-term agreement with ABB for the Lewek Connector in connection with the installation of power cables and related services.
The Lewek Connector is a newly-built, ultra-deepwater, multipurpose, flex-lay subsea construction and umbilical installation vessel. The vessel has a unique pay load capacity of 9,000 tons. The Lewek Connector also has bundle-lay capability, which allows for the laying of several cables simultaneously.
"The large pay load capacity increases the efficiency of cable-laying operations by avoiding the time-consuming splicing of cables and reducing the need to reload products. Fitted with bundle-lay capability, the Lewek Connector is one of the most efficient and complete installation vessels in the market," said Haug.
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