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Seabed preparatory works,
Dana Medway

Dana Petroleum Netherlands B.V. is the operator of the Pllb De Ruyter field and oil-producing platform located in the Dutch section of the North Sea.

Several small oil and gas prospects lie within Pllb and adjacent blocks. Dana Petroleum planned initially to develop two confirmed small oil and gas fields as part of the Dutch gas development strategy, with other fields being developed over time to increase gas production. The two initial wells Van Nes and Van Ghent, combined referred to as the Medway Development, are developed as tie-back to the existing De Ruyter platform. Subsea 7 was awarded the Subsea EPIC Contract for the Medway Development, consisting of trenching, installing, backfilling and commissioning of the tie-back flowlines to the De Ruyter GBS platform. Subsea 7 subcontracted Boskalis Offshore to execute the following seabed preparatory works:

  • Pre-sweeping of a 30 meter wide corridor to modify existing seabed features with the aim of reducing freespans;
  • Peak shaving to reduce the steepness of slopes in order to aid pipeline trenching;
  • Complete route survey work at specified stages to confirm the seabed profile.

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Seabed preparatory works,
Dana Medway

Dana Petroleum Netherlands B.V. is the operator of the Pllb De Ruyter field and oil-producing platform located in the Dutch section of the North Sea.

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Rock installation, PDET

In 2008 Boskalis was approached by Petrobras to carry out a rock installation project at the oceanic terminal, one of Petrobras’ offshore oil production locations. The terminal, situated at Campos Basin offshore Rio de Janeiro, Brazil, is a maritime complex consisting of one Independent Re-pump Platform (PRA-1), two monobuoys and a FSO vessel which links to a 20 inch gas pipeline system.

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Construction wind farm, Belwind

SMIT sheerlegs Taklift 4 installed the final element for one of Belgium’s first offshore wind farms, Belwind, the wind farm’s high voltage transformer substation. SMIT also provided the transport of the element and other marine support services to assist the construction of the wind farm.

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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.

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Pipeline crossing, Strait of Magellan

The project involved the construction of a new, strategically important, 24" natural gas pipeline across the Strait of Magellan, linking Cabo Espíritu Santo in Tierra del Fuego province with Cabo Vírgenes in Santa Cruz province. The new pipeline was built as an expansion of the existing San Martín pipeline in an effort by the government to increase gas supplies from Tierra del Fuego to the Argentinian mainland.

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Offshore wind farm, Sprogø

On behalf of marine contractor Aarsleff, SMIT was involved in the construction of the new Sprogø Offshore Windfarm, west of Copenhagen.