Elastic tethering techniques for surface and near-surface buoy systems

The application of elastic tethering technology to the design of surface and near-surface buoy systems has resulted in improved data collection and high resolution navigation in the relatively shallow waters covering the continental shelves. These elastic, taut buoy systems possess the ability to withstand the mechanical shock experienced as a result of tide and wave forces. Continuous tension supplied by the compliant mooring array typically limits the horizontal excursion of the buoy to 5 to 10 percent of the water depth. This paper touches on the history of this technique from its development in the mid-1960´s as data collection platforms to its present role as offshore benchmarks for hydrocarbon exploration. The results of selected programs in which this technique was used are discussed. Also discussed is the computer program, TAUT-MOOR, developed to predict mooring geometry and assist in effective system design. Suggestions for future application of these systems are also introduced.