UK: Seajacks Announces Zaratan Construction Summary

UK Seajacks Announces Zaratan Construction Summary

In February 2010 Seajacks entered into a contract with GustoMSC to provide the Basic Design Package for two purpose built wind farm installation vessels.

In June 2010 Seajacks entered into a contract with Lamprell shipyard to build these new vessels and Seajacks will take delivery of the first new-build, Seajacks Zaratan, in May 2012, and the additional new-build shortly thereafter.

These self-propelled jack-ups have been designed specifically to service the wind farm installation market in the harsh operating environment of the North Sea, as well as to provide services to the oil and gas industry. The vessels will be a modified version of the MSC NG5500 design, which incorporates a fully redundant DP2 propulsion system, accommodations for 90 persons, and an 800T leg encircling crane designed by MSC.



  •  Completed
  • Paint system completed up to main deck level, with underside remaining to be coated.

Spud cans:

  •  Completed.


  •  All 4 x starter leg sections installed on board – welding to spud cans complete
  • All leg sections are now complete and delivered to the yard
  • Welding of all remaining sections (2/3) now complete
  • Legs 1 & 3 – section 2 & 3 now installed and final welding completed
  • Leg 4 – Jetting piping completed and sections 2/3 ready for installation – due to install 7 March
  • Leg 2 – Jetting piping completed and sections 2/3 ready for installation – due to install 5 March.

 Main deck:

  •  Main crane boom block pocket now completed
  • Mooring equipment installed.


  •  Structure complete
  • Blasting and painting in progress
  • Final outfitting works ongoing throughout and the furniture is being installed
  • Helideck now installed
  • Secondary/ tertiary steel continues being fabricated and installed.

 Machinery foundations:

  •  Completed throughout.

 Cable trays:

  •  Completed throughout.

 Electric cable:

  • Installation and termination cables are ongoing – with 82 cables remaining to be installed, these consist of 42 control/ automation cables and 40 spare cables.

 Machinery installation:

  •  Installation of all machinery complete.

 Pipe work:

  •  Complete with exception of installation of helideck systems.

 Main 800T crane:

  •  Tub collar installed and fully welded
  • All main components onsite
  • Slewing platform, a frame, boom and main block installed
  • Main electrical power cables now installed and terminated.

 Jacking system:

  •  System is now complete and rig has been jacked several times.

 Electrical work:

  •  N.E.S and Kongsberg progressing
  • Kongsberg consoles installed in E.C.R and on bridge
  • Panels in bridge electrical room – now complete.

 Auxiliary cranes:

  •  Both cranes installed.


Offshore WIND staff, March 20, 2012; Image: seajacks