Submerged calm buoy

A catenary anchor leg mooring (CALM) buoy comprising a body with buoyancy means for connecting the buoyant body to catenary anchor chains to anchor the body to the seabed, a turntable being rotatablewith respect to the body with buoyancy, said turntable having mooring means for a floating unit such...

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Bibliographic Details
Main Authors PAUL ANTHONY BROWN, JEAN BRAUD, GEOFFERY ONION
Format Patent
LanguageEnglish
Published 05.11.1997
Edition6
Subjects
EQUIPMENT FOR SHIPPING
PERFORMING OPERATIONS
RELATED EQUIPMENT
SHIPS OR OTHER WATERBORNE VESSELS
TRANSPORTING
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Summary:A catenary anchor leg mooring (CALM) buoy comprising a body with buoyancy means for connecting the buoyant body to catenary anchor chains to anchor the body to the seabed, a turntable being rotatablewith respect to the body with buoyancy, said turntable having mooring means for a floating unit such as a vessel, a swivel and means for connecting at least one hose between at least one swivel and asubmerged pipe structure extending over or into the seabed to any subsea well or the like as well as means for connecting at least one hose between at least one swivel and at least one vessel, wherein the CALM buoy is provided with catenary anchor chains which have a weight such that the CALM buoy as a whole is kept underwater at least during normal practice.
Bibliography:Application Number: CN1994195179