The key to the VersaBuoy system is the articulating connection between the supporting buoy hulls and the topside structure.  The length and geometry of the buoy hull keeps heave to a minimum while the articulating joint decouples the pitch and roll motions of the buoys from the topside keeping the topside structure stable and level. In model tests, the VersaBuoy Platform System improves topside motions in harsh marine conditions by a factor of 5-10.  This level of motion reduction allows multiple units to be rigidly linked together providing expandable offshore real estate.

One such application could be the development of a floating security fence structure that can be used to protect critical offshore assets. Protection is achieved through the use of a continuous ring-type structure located around the asset. The current rendition assumes mono-column buoys spaced at 250ft centers with a clearance of 1,500ft+ from the asset.  The buoys support open truss bridge structures which in turn support a chain curtain lowered into the water to prevent vessel passage.  The bridge arrangement also allows for continuous personnel access and monitoring around the perimeter.  Supply and support vessel access is managed through the use of swing openings at several points around the perimeter.  Buoy mooring is via a single tension leg to the seabed reducing mooring footprint and potential clashing with mooring spread and riser and umbilical infrastructure of the asset.

Fabrication of the “fence” is simple and repetitive allowing for local fabrication options.  The system can be broken down and reconfigured for different applications as required.

For cost estimates, construction timelines and to receive more information contact Steve Khachaturian at sjk@vbuoy.com