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LIFTING IN SUPPORT OF OFFSHORE PLATFORM DECOMMISSIONING

Lifting is a key support service in piece small & piece large platform decommissioning, however, when nearing the end of platform useful life platform cranes may be de-rated or out of order before decommissioning commences, and in many cases platforms do not have cranes or simply lack sufficient lifting capacity.

Where suitable, ‘piece small’ & ‘piece large’ decommissioning of platforms can be achieved in an economical and safe manner by conducting key lifting operations with modular rental cranes. Thunder Cranes can provide the necessary lifting support for clean up/mop up works, the reverse installation of platform equipment & modules, conductor removal, well plug and abandonment, and making ’lighter’ the overall platform in preparation for heavy lift vessels.

All this can be done with logistical support from a fleet of smaller vessels and more cost efficient barges, in order to reduce the size of the heavy lift vessel required and the "on hire" time required.

REVERSE INSTALLATION OF PLATFORM MODULES

  • Living quarters
  • HVAC
  • Platform Crane Takedown
  • Helideck and helideck structure
  • Sewage Treatment
  • Generators and Turbine Gen Skids
  • Lifeboats
  • Communications equipment
  • Vessels
  • Production Modules
  • Wellhead Equipment and Accessories
  • Production Modules
  • MOL pumps and process equipment
  • Staircases, walkways, bridges,
  • Non-bearing structures such as Flare Booms and Flare Tips

MITIGATE DOWNTIME

Static lifts from the platform are efficient and precise compared with lifting from vessel cranes which may experience downtime due to sea conditions. With Thunder Cranes decommissioning activities can continue with lifting support to stage materials on deck while waiting on the weather.

MITIGATE SHALLOW WATER ISSUES

Shallow water depth around platforms may be a hinderance for larger heavy lift vessels. Thunder Cranes can mobilize on shallow draft vessels because of our small load out footprint. Shallow water platform may require piece small / piece large approach to decommissioning.

MITIGATE SUPPORT VESSEL COSTS

Via "self-lifting" we have the ability to rig our cranes up on remote offshore structures with minimal assistance from 3rd parties, and in some cases without the use of a third party crane, platform crane, or lift vessel, thus reducing cost of support vessel required to deploy our cranes.

ENABLE GREATER RECYCLING

The precision of static lifting from Thunders Cranes position on deck lets you take greater control over the removal of high value assets in individual lifts and enables economies of re-use & re-sale.


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