Fairing system for subsea drilling rigs and method for installat

Details Fairing system for subsea drilling rigs and method for installat Fairing system for subsea drilling rigs and method for installat

1996-10-23

1998-04-14

Basinger, Sherman

Ships

Towing or pushing

Cable fairing

166367, 405211, 4147956, F15D 110

Patent

active

057380341

ABSTRACT:
The present invention relates to an improved apparatus and method for minimizing vortex induced vibrations and hydrodynamic drag of a drilling riser. Vortex induced vibrations and hydrodynamic drag are minimized by installing on a drilling riser streamlined faring sections. The fairing sections are installed on and removed from a riser through the use of one or more door panels on a rounded front portion that have a latch mechanism which can be easily opened and closed. The fairing sections are configured so they can nest one inside the other for easy storage. A tapered back or tail section of each fairing section has an attachment receptacle for engagement by a handling mechanism with a telescoping arm for grasping the fairing section. The handling mechanism is designed to move the fairing sections between a rack, where they are stored, and a position adjacent to the riser.

REFERENCES:
patent: 4398487 (1983-08-01), Ortloff et al.
patent: 4474129 (1984-10-01), Watkins et al.

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