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World's largest spar platform

World's largest spar platform
A new spar platform being built for Statoil’s Aasta Hansteen field off the coast of Norway will feature Wärtsilä’s Inert Gas and Nitrogen Generator systems.

The contract has been issued in the first quarter 2014 by Hyundai Heavy Industries (HHI) of South Korea, the yard building the platform. The Wärtsilä Inert Gas Generator will utilise titanium in its construction, the first time ever that this material has been used in such a system. Titanium was preferred due to its superior corrosion resistance in relation to sea water.

Wärtsilä’s extensive experience and technical expertise in gas handling systems were critical factors in the award of this contract. The use of unconventional materials, such as the titanium used in the construction of the Wärtsilä Inert Gas Generator, as well as noise reduction measures were also necessary.

The Wärtsilä Inert Gas Generator is designed to produce mainly CO2 so as to ensure a safe atmosphere in cargo tanks and pipelines to minimise the risk of explosion. Wärtsilä’s Nitrogen Generator package will generate, or create, pure nitrogen gas. This is used for a range of purposes, such as the flushing of pipelines and sealing gas in compressors.

“This is an important and prestigious contract award for Wärtsilä. The project is extremely complex, and it required a solution that was truly state-of-the-art, as exemplified by the use of titanium for the first time anywhere. Our strong expertise and advanced technology not only made this solution possible, but also provide the essential reliability and efficiency demanded. Furthermore, our speedy response and quick clarification of the commercial issues added significant value to the planning of the project,” says Juha Kytölä, Vice President Environmental Solutions, Wärtsilä Ship Power.

With a hull length of 198 metres, the Aasta Hansteen spar will be the largest ever built and the first to be installed on the Norwegian continental shelf. A spar is a type of floating oil platform to support drilling, production and storage operations typically used in very deep waters, and it consists of a large vertical cylinder bearing topsides with equipment. Spar production platforms have been developed as an alternative to conventional platforms.
 

 

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