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Offshore wind farm, Walney

Windfarm construction projects regularly feature in the work programmes of SMIT’s sheerlegs fleet. For example, the Taklift 7 was involved in the Walney Offshore Windfarm development in the Irish Sea. Walney Offshore is a wind farm project developed by DONG in the Irish Sea, some 20 miles from the coast at Barrow.

The first half of the development, Walney 1, became fully operational in 2011. SMIT’s scope of work involved the installation of a series of 51 large monopiles for Walney 1. The 1,200 tonnes lift capacity sheerlegs Taklift 7 was mobilized for the project, together with the multipurpose vessel Smit Buffalo, which provided support services. The main task was to upend the monopiles and hand over the structures to a jack-up installation platform. The monopiles were transported to Barrow by a coastal vessel, having been loaded in Poland. A shore crane discharged the monopiles as they arrived, they were then plugged and towed out to the windfarm installation site. Taklift 7 would then connect and bring each pile into the vertical position, ready for installation by the jack-up Goliath. Each pile had a length of 58 metres and a weight of around 600 tonnes during upending. This project involved around five months of work and was successfully completed in September 2010.

Related projects

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Transport and installation depletion compression platform,
Malampaya phase 3

The Malampaya Deep Water Gas-to-Power Project is a joint venture involving the Philippine National Oil Company, Chevron and Shell Philippines Exploration. The project is part of the optimization of the Malampaya gas field which will lead to an eight-year lifetime extension.

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Platform reinforcement, DABRAT

Boskalis Offshore was awarded a contract by Maersk for the DABRAT project, involving both the preparation and construction work to the Dan A and Dan B offshore oil production facilities. The extensive scope not only included the subsea installation and removal work, but also fabrication of structural items, procurement, setting up and testing of lift equipment and structural examinations. The works covered the years 2013 and 2014.

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Tow-out and towage,
FPSO Petrojarl Knarr

Teekay awarded Fairmount Marine, a 100% subsidiary of Boskalis, a contract for the tow-out and towage of the FPSO from Geoje, South Korea to the port of Haugesund in Norway.

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Wintershall L8-P4

Wintershall Noordzee B.V. installed a new remote platform at L6-B as a gas production tie-back to L8-P4. L6-B is a remote and unmanned gas well unit. Utilising a dry-tree design, all control, power and metered injection for the two wells will be via the 19.5-km control umbilical between the new satellite platform L6-B and the operational gas platform L8-P4. 

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Wind farm foundation installation, West of Duddon Sands

With 108 wind turbines producing almost 400 megawatts, West of Duddon Sands is one of the larger European wind farms. It is being built by a joint venture of Dong Energy and Scottish Power Renewables. Boskalis Offshore and Volker Stevin Offshore - in an Offshore WindForce joint venture - were responsible for the transport and installation of the 108 foundations for the wind farm.

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Submarine cables, Java-Bali

The island of Bali has been suffering a constant shortage of power. PLN contracted a Consortium of PT. Boskalis International Indonesia, Sumitomo Corporation and J-Power Systems Corporation to procure and install two 150 kV submarine and underground interconnecting power cables to replace existing cables and to reinforce the link between the electricity grids on the Indonesian islands of Java and Bali.