METHOD OF INSTALLING AN UNDERWATER RISER

A METHOD OF INSTALLING AN UNDERWATER RISER INCLUDES ANCHORING AN INSTALLATION TO THE SEABED (10); COUPLING A TUBULAR PIPE (20) TO THE INSTALLATION; EQUIPPING THE INSTALLATION WITH A SUBMERSIBLE FLOAT; SUBMERGING THE FLOAT (18) AND THE PIPE (20), WHILE THE FLOAT (18) AND THE PIPE (20), ARE BEING HELD...

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Bibliographische Detailangaben
Hauptverfasser:	FARGHEON LOUIS, DE KERDANET TEGWEN, GUILBAUD THOMAS, ESPINASSE PHILIPPE
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS 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 MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	A METHOD OF INSTALLING AN UNDERWATER RISER INCLUDES ANCHORING AN INSTALLATION TO THE SEABED (10); COUPLING A TUBULAR PIPE (20) TO THE INSTALLATION; EQUIPPING THE INSTALLATION WITH A SUBMERSIBLE FLOAT; SUBMERGING THE FLOAT (18) AND THE PIPE (20), WHILE THE FLOAT (18) AND THE PIPE (20), ARE BEING HELD FROM A SURFACE VESSEL (12); A CABLE AND A RETURN DEVICE (34) ARE INSTALLED ON THE SEABED INSTALLATION (24) SO THAT THE CABLE CAN BE CONNECTED TO THE PIPE (20); ATTACHING A SUBMERGED HAULING BUOY TO THE HAULING CABLE; THEN REMOVING BALLAST FROM THE FLOAT (18) IN ORDER TO COMPENSATE FOR THE TENSILE FORCES CORRESPONDING TO THE WEIGHT OF THE FLOAT (18) AND THE PIPE (20) AND TO SOME OF THE LOAD APPLIED TO THE CABLE; AND FINALLY, ANCHORING OF THE HAULING BUOY TO THE INSTALLATION AND GRADUALLY RELEASING THE FLOAT (18).