Connecting riser parts using a winch platform

A method of connecting a flexible upper riser part 15 to a lower riser part 3, where the upper riser may be a catenary riser. An upper riser assembly 2 supports a lower riser termination 4. A cable linkage or tow line 18 is attached to a riser connector 16 at the end of the flexible upper riser part...

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Bibliographische Detailangaben
Hauptverfasser:	MARK LAWRENCE VARLEY, WILFRED JOHNSON EMMANUEL COX
Format:	Patent
Sprache:	eng
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	A method of connecting a flexible upper riser part 15 to a lower riser part 3, where the upper riser may be a catenary riser. An upper riser assembly 2 supports a lower riser termination 4. A cable linkage or tow line 18 is attached to a riser connector 16 at the end of the flexible upper riser part 15. A winching or hauling means 9a on the upper riser assembly 2 is used to wind in the cable linkage 18 and draw the riser connector 16 into a docking position on the upper riser assembly 2 and the riser connector 16 is coupled to the lower riser termination 4. A corresponding method of disconnecting the flexible riser part 15 is also described, as well as a method of mounting the winching mechanism on a submerged landing platform 5.