Monday, 06 September 2010

Master Marine ASA
Head Office
Drammensveien 288
Postbox 76, NO-1325 Lysaker
Norway
Tel: +47 67 430 430
Fax: +47 92 07 37 37
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Integrated Quality Services Print E-mail

Master Marine's Jack-up Construction Vessel known as "Service Jack" has a size enabling it to perform jacket installations by tandem lift (1500 T revolving capacity) and topside installations by either skidding (7200 T capacity) or tandem lifting (1500 T capacity).
In order to reduce offshore hook-up time, the Service Jack can handle fully integrated and commissioned topside from onshore fabrication site, including load out using its own gear, transportation to field using its own propulsion, positioning at field using its own propulsion/DP system, elevating the laden hull by using the Service Jack's jacking system, offshore load transfer of whole topside in one single operation by skidding and working as tender barge during the hook up phase. This reduces or eliminates the need of using the following;

  • Transportation barge
  • Load out equipment
  • Lead tug for tow to field
  • Assisting tugs to hold the barge in position at field
  • Crane vessel
  • Anchor handling tugs for deploying mooring spread to crane vessel
  • Accommodation rig for the hook up phase
  • Tug fleet for mobilisation and later demobilisation of accommodation rig

Problems surrounding interfacing can be reduced, if not eliminated, since one has to deal with only the ship owner instead of several other parties. The method will further reduce weather down time since the Service Jack is less weather sensitive compared to any other competing offshore load transfer technology. The operation will also be safer and more environmentally friendly compared to any existing competing method since only one vessel will be involved instead of the usual 12 -15 different types of vessels.

In addition, the Jack-up Construction Vessels can also perform:
  • Platform modification and maintenance including load out of modules, transportation and installation of modules and tender rig during hook up phase;
  • Sub-sea installations work in water depth up to 300 meters; and
  • Decommissioning services.