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'Innovation'

Damen Verolme Rotterdam completes maintenance work on Heavy-lift jack-up vessel 'Innovation'

Date
September 2019
Ship name
'Innovation'
Ship type
Offshore Construction Vessel
Yard
Damen Verolme Rotterdam
Tasks performed for this project
  • Major refit
  • maintenance

Damen Verolme Rotterdam recently completed a major refit project for Innovation, one of DEME’s DP2 installation vessels. The vessel spent several months in the Damen Verolme Rotterdam shipyard undergoing renewal of its aft leg sections and an overhaul of its jacking motors.

Innovation measures 147.5 metres in length and operates on an electrical rack & pinion jacking system. The vessel supports offshore construction via the installation of foundations, operating at wind farms across Europe.

OUT ON A LIMB

Damen Verolme Rotterdam was chosen as the location of this maintenance work thanks to the shipyard’s capacity and access to its facilities. Given the height of Innovation’s leg sections, Damen Verolme Rotterdam shipyard’s mammoth drydock offered the possibility to lift the vessel’s legs with a crane installed inside the drydock while the vessel was sitting on the dock blocks, allowing maintenance work to be carried out safely and efficiently.

The most significant aspect of this refit was the modification and re-installation of Innovation’s aft legs, each measuring 89 metres in length. Reinforcement work was carried out on the legs to enable them to cope with an increased rate of jacking operations, driven by the increased efficiency of the installation works.

Once the vessel was drydocked the two aft legs were removed and two new middle sections were inserted on the quayside, the refurbished leg finally being assembled from three parts. In total 47 metres of section per leg were replaced.

A PIECE OF WORK

To overhaul the jacking motors, all 48 gearboxes of the aft legs were removed, overhauled in the shipyard’s workshop, and reinstalled on the vessel. Additional general maintenance work completed the refit, which included a box-cooler renewal, maintenance to the spudcan shoes, replacement of one aft thruster, small steel repairs and the installation of a new pile gripper.

Given the demanding scope of the vessel maintenance, project Innovation was a real challenge for the shipyard. Thanks to good cooperation with the client, and the support and dedication of the staff on-site, the project was completed on schedule and to Damen’s trademark high standards.

DAMEN VEROLME ROTTERDAM

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Damen Verolme Rotterdam can accommodate any seagoing vessel or floating offshore unit. The yard is well known for its drydocking, repair and maintenance capabilities and has a long track record of modification and conversion of ‘upstream’ offshore units.

  • Damen Verolme Rotterdam recently completed a major refit project for Innovation, one of DEME’s DP2 installation vessels.
  • The vessel supports offshore construction via the installation of foundations, operating at wind farms across Europe.
  • The most significant aspect of this refit was the modification and re-installation of Innovation’s aft legs, each measuring 89 metres in length.
  • To overhaul the jacking motors, all 48 gearboxes of the aft legs were removed, overhauled in the shipyard’s workshop, and reinstalled on the vessel.
  • Given the height of Innovation’s leg sections, Damen Verolme Rotterdam shipyard’s mammoth drydock offered the possibility to lift the vessel’s legs with a crane installed inside the drydock
  • Damen Verolme Rotterdam recently completed a major refit project for Innovation, one of DEME’s DP2 installation vessels.
  • The vessel supports offshore construction via the installation of foundations, operating at wind farms across Europe.
  • The most significant aspect of this refit was the modification and re-installation of Innovation’s aft legs, each measuring 89 metres in length.
  • To overhaul the jacking motors, all 48 gearboxes of the aft legs were removed, overhauled in the shipyard’s workshop, and reinstalled on the vessel.
  • Given the height of Innovation’s leg sections, Damen Verolme Rotterdam shipyard’s mammoth drydock offered the possibility to lift the vessel’s legs with a crane installed inside the drydock

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