HENDERSON HOOPS: A NEW SYSTEM FOR MARINE GROWTH INHIBITION ON OFFSHORE TUBULARS.

Polypropylene hoops encircling the tubulars of offshore structures are used to inhibit marine growth through their rotation which is induced by the action of current on flaps with a hinged connection to the hoop. Axial motion occurs naturally for inclined and horizontal tubulars in tidal flow and re...

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Bibliographic Details
Main Authors: Stansby, P. K., Henderson, T.
Format: Article in Journal/Newspaper
Language:English
Published: 1987
Subjects:
Online Access:https://research.manchester.ac.uk/en/publications/1f1f9962-d4a2-4932-a1d6-2ed35d81dc29
Description
Summary:Polypropylene hoops encircling the tubulars of offshore structures are used to inhibit marine growth through their rotation which is induced by the action of current on flaps with a hinged connection to the hoop. Axial motion occurs naturally for inclined and horizontal tubulars in tidal flow and requires an extra vane attachment for vertical tubulars. Controlled tests in the marine environment suggest that the concept is nearly completely effective. The final design for the device which is being mass-produced is described.