Lisnave completes offshore contractsYard News // July 11, 2013
Lisnave's shipyard in Portugal recently carried out repairs on EMAS' self-elevating liftboat Lewek Leader. The main workscope for this project, which was due to last some 40 days, was to replace the lower part of one self-elevating leg, which has suffered cracking, which will be replaced by new leg sections.
The new leg, which measures 97.50m x 3.00m, and spudcan, were prefabricated in US and installed at Lisnave's Mitrena yard.
Lewek Leader is a self-elevating liftboat measuring 56.40 m x 44.20 m x 6.90 m classed by ABS. She is self-propelling and self-elevating, with a large deck area and high capacity cranes.
Other general repair work carried out included hull cleaning and painting, repairs to sea chests and grids, aft spud can/leg repairs, and lifeboat repairs.
Lisnave has also recently completed repairs to the seismic research vessel Ramform Sovereign, which is owned by Norway's PGS.
Ramform Sovereign was built in 2008 in Norway and recently completed her first ever drydocking operation at Lisnave. The yard performed both marine and technical repair operations, including maintenance and refurbishment.
One of the main aspects of the repair involved Rolls-Royce streamer winches, which were upgraded. Work undertaken at the yard also included shaftline and rudder repairs undertaken together with Wärtsilä, along with hull surface treatment, including a full underwater cleaning with robotic ultrajet equipment.