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Haven Jack-up upgrade

The Master Marine accommodation unit HAVEN required an upgrade for operations at the Johan Sverdrup Field.

The upgrade included the extension of the existing legs from approx. 130 m to 160 m and the replacement of the existing spudcan & add-on tanks by new suction caissons. The main contractor of the project was Lamprell, who fabricated all the new leg sections and suction caissons at their yard in Hamriyah, UAE. After which all materials were transported to Ågotnes, Norway. Boskalis was awarded the Heavy Lift scope with the Asian Hercules III consisting of 20 lifts up to 2,500 t and lifting heights up to 120 m down to 65 m below sea level.

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.