Flexible fairings to reduce vortex-induced vibrations

Wells – Submerged well

Patent

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Details

166367, 405211, E21B 1701, E21B 4301

Patent

active

054214130

ABSTRACT:
A method to reduce vortex-induced vibrations in subsea risers is provided wherein a flexible fairing is provided surrounding the riser. The flexible fairing will reduce displacements caused by vortex induced vibrations regardless of the direction of the current and will be tolerant of marine life growth.

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M. J. Every et al., "Vortex-Excited Vibrations of Cylinders and Cables and Their Suppression," Ocean Engng., 9, No. 2, (1982) 135-157.
A. R. Packwood, "Performance of Segmented Swept and Unswept Cable Fairings at Low Reynolds Numbers," Ocean Engng. 17, No. 4, (1990).

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