Abstract

This paper presents a comprehensive description of the high-deck floatover technology with a T-shaped barge scheme. The floatover hardware systems are addressed in depth to elucidate the functionality and design considerations of flip sheaves, deck guide sheaves, fairleads, box rollers, mooring equipment foundations devised for the mooring winches system, jacket entry guides, sway fenders, and surge stoppers contrived for three different functions, as well as cross lines, surge lines, and line catchers excogitated for the softline winches system. In addition, various engineering tools, including numerical simulations, model tests, virtual simulations, field monitoring measurement, etc., have been applied to ensure the success of this very challenging floatover installation performed on May 23, 2013 in the deep water and harsh environment of the northern South China Sea. Lessons learned from the floatover operations are also addressed.

Keywords:
mooring system, cone, upstream oil & gas, modeling & simulation, barge, barge hysy229, operation, subsea system, topsides, mating position
Subjects:
Offshore Facilities and Subsea Systems, Information Management and Systems, Mooring systems
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2014. International Society of Offshore and Polar Engineers
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