Pipelay vessel

A pipelay vessel (10) has a stinger (24) extending along and outboard of one side of the vessel. A diverter (28) is arranged to lead pipe onto the stinger input end through a predominantly horizontal diversion angle from pipeline source (18) having a substantially horizontal orientation. The vessel...

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Bibliographic Details
Main Author ALLIOT VINCENT
Format Patent
LanguageChinese
English
Published 12.10.2011
Subjects
BLASTING
ENGINEERING ELEMENTS AND UNITS
EQUIPMENT FOR SHIPPING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
JOINTS OR FITTINGS FOR PIPES
LIGHTING
MEANS FOR THERMAL INSULATION IN GENERAL
MECHANICAL ENGINEERING
PERFORMING OPERATIONS
PIPES
RELATED EQUIPMENT
SHIPS OR OTHER WATERBORNE VESSELS
SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING
THERMAL INSULATION IN GENERAL
TRANSPORTING
WEAPONS
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Summary:A pipelay vessel (10) has a stinger (24) extending along and outboard of one side of the vessel. A diverter (28) is arranged to lead pipe onto the stinger input end through a predominantly horizontal diversion angle from pipeline source (18) having a substantially horizontal orientation. The vessel is selectively operable in any one of three modes, namely (1 ) shallow S-lay, in which the pipe is launched over a stern-mounted stinger (20) with a launch angle which has a predominantly horizontal component; (2) steep S-lay, in which the pipe is launched over the side-mounted stinger (24) with a launch angle which has a predominantly vertical component; and (3) J-lay, in which the pipe is welded at and launched from a tower (26). The axis (261 ) of the J- lay apparatus is aligned with the departure axis of the side-mounted stinger (24).
Bibliography:Application Number: CN20098144746