Title:
VORTEX INDUCED VIBRATION SUPPRESSION
Document Type and Number:
WIPO Patent Application WO/1995/027101
Kind Code:
A1
Abstract:
A method is provided to suppress vortex induced vibrations of a portion of a subsea tubular that is subject to vortex induced vibrations, the method comprising the steps of: providing a plurality of shrouds wherein each shroud is capable of reducing forces caused by shedding of vortexes over a segment of the tubular, wherein each shroud can slide along the tubular and wherein each shroud can be individually secured around the tubular; hingeably connecting the shrouds from end to end; individually securing the shrouds around the subsea tubular at a location on the tubular above the portion of the subsea tubular that is subject to vortex induced vibrations; and allowing the shrouds to slide down the tubular until the shrouds surround the portion of the tubular subject to vortex induced vibrations.
Inventors:
ALLEN DONALD WAYNE
MCMILLAN DAVID WAYNE
MCMILLAN DAVID WAYNE
Application Number:
PCT/EP1995/001255
Publication Date:
October 12, 1995
Filing Date:
April 03, 1995
Export Citation:
Assignee:
SHELL INT RESEARCH (NL)
International Classes:
E02B17/00; E21B17/01; F15D1/10; F16L1/12; (IPC1-7): E02B17/00
Foreign References:
| FR2367148A1 | 1978-05-05 | |||
| US4193234A | 1980-03-18 |
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