Gibdock continues offshore support ship dockings

01 Dec 2013
‘Viking Vanquish’ at Gibdock

‘Viking Vanquish’ at Gibdock

Gibraltar shipyard Gibdock reports that it has continued to attract technically advanced offshore support vessel repair and maintenance projects.

One such job, for a returning customer, CGG of France, was a 21-day programme on high-capacity 3D seismic ship Viking Vanquish. The scope of work included a tailshaft withdrawal and the full overhaul of the shaft, couplings, liners and related equipment. This complex process required cutting away a section of the stern tube to gain access. Gibdock also carried out a series of load tests on the Viking Vanquish’s winches and eye-plates, as well as a range of other machinery and pipe works. The yard renewed propeller blade seals and blasted and painted the vessel’s exterior.

The 93.3m long, 8,621grt Viking Vanquish wasbuilt in 1998, and converted for seismic operations in 2007. She is owned by Norwegian company Eidesvik and is operated by CGG which, after acquiring Fugro’s geosciences division, now runs 23 seismic ships, claimed to be the world’s largest. Towing 12 8km streamers as standard, the vessel is capable of acquiring high quality data in all conditions.

John Taylor, Gibdock operations director, says: “We are really building up momentum in this demanding sector of the shiprepair business. Our ability to attract contracts from the top players in the industry reflects confidence in our workforce, and our safety procedures. We are now the yard of choice for demanding offshore vessel projects in the Mediterranean.”

“This was certainly not a straightforward or standard job,” he said. “Usually the couplings can be found in the engine room, without access complications. This was not the case on this project, but we nonetheless managed to finish on schedule.” Gibdock also machined liners for the tail shaft, which were not supplied pre-machined.

Commenting on a period of sustained workload in the offshore sector at the yard, Gibdock MD Richard Beards said: “This project adds another reference to our growing body of work in this specialised market for 2013, following a series of contracts for seismic survey, dive support, pipelayer and other offshore vessel types secured in the past year.”

The project employed a cleaning product from Ultraclean, believed not to have been used before in shiprepair. The combination of gel and chemicals was applied to remove corrosion on the gun-deck and cranes then washed away with water, to prepare surfaces for coating. CGG, Eidesvik and Gibdock were pleased with the results, and this method of cleaning may provide an environmentally-friendly alternative to conventional blasting.

Links to related companies and recent articles ...