Gravifloat platforms are re-deployable, modularised LNG and LPG terminals, designed for installation in shallow waters of 8 to 20 metres. The floatable modules are fully constructed at Sembcorp Marine shipyards – leveraging on the yards’ expertise in engineering design, procurement process and fabrication infrastructure. They offer high versatility for site-specific requirements, and can be flexibly configured as a single-unit terminal or connected to other units as a multi-module terminal.
Applications of the Gravifloat technology:
- LNG Export Terminal (Liquefaction)
The Gravifloat structure is fixed to the seabed of 8 to 20 metres water depth, allowing full port capabilities. It can be designed for LNG export, where raw gas from the wellhead or gas pipeline can be routed to the Gas Treatment module, followed by the Liquefaction module of the Gravifloat structure.
- LNG Receiving Terminal (Regasification)
Gravifloat topsides can also be designed for re-gasification. The re-gasification terminal will house the re-gasification skid, loading arms, metering skid and Gravifloat’s internal hull storage of standard capacity: 30,000cbm, 60,000cbm or 85,000cbm.
- Small-island Power Plant
This Gravifloat configuration can accommodate the use of dual-fuel engines or open cycle gas turbine plants, to accommodate the power needs of its area of deployment. The design is optimal for remote areas that require immediate power utilization.
- Mid-scale Power Plant
To accommodate higher power requirements, the combine cycle gas turbines (CCGT) power plant is capable of generating 100MW to 320MW of power. Its near-shore application reduces power loss in cables that connect the modules to on-shore power grid terminals.
- Bunkering and Distribution
Gravifloat LNG bunkering modules can be installed in the open sea, allowing LNG-fuelled vessels to berth directly to it for refuelling. The Gravifloat design also incorporates mooring quaysides to allow the mooring of LNG distribution vessels for further break bulking.