FLEXIBLE PIPE CARCASS FOR CONTROLLING FLOW INDUCED VIBRATION IN A RISER

The invention relates to a flexible pipe carcass comprising a flexible tubular wall structure comprising a helically wound wall strip; wherein interlocking sections (57) of successive windings of said wall strip form the wall structure. The interlocking sections (57) of adjacent wall strips define a...

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Bibliographische Detailangaben
Hauptverfasser:	FARNES, KNUT-ARIL, MELVE, BJORN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKINGWITHOUT ESSENTIALLY REMOVING MATERIAL BLASTING EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING ENGINEERING ELEMENTS AND UNITS FIXED CONSTRUCTIONS FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOWOF GASES OR LIQUIDS FLUID-PRESSURE ACTUATORS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULICS OR PNEUMATICS IN GENERAL JOINTS OR FITTINGS FOR PIPES LIGHTING MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES,OTHERWISE THAN BY ROLLING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVINGMATERIAL MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS PERFORMING OPERATIONS PIPES PUNCHING METAL SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a flexible pipe carcass comprising a flexible tubular wall structure comprising a helically wound wall strip; wherein interlocking sections (57) of successive windings of said wall strip form the wall structure. The interlocking sections (57) of adjacent wall strips define a length and are movable with respect to each other between a first position and a second, extended position for changing said length, the interlocking sections (57) being formed such that in the extended position a carcass gap (53) is provided between adjacent interlocking sections (57) for accommodating relative movement there between upon flexure of the wall structure. An insert profile (50) is located in the carcass gap (53) of the tubular wall structure on an inside of the wall structure to at least partly cover the carcass gap (53). L'invention se rapporte à une carcasse de tuyau flexible comprenant une structure de paroi tubulaire flexible comprenant une lanière de paroi enroulée de façon hélicoïdale ; des sections d'emboîtement (57) d'enroulements successifs de ladite lanière de paroi forment la structure de paroi. Les sections d'emboîtement (57) de lanières de paroi adjacentes délimitent une longueur et sont mobiles les unes par rapport aux autres entre une première position et une seconde position étendue pour modifier ladite longueur, les sections d'emboîtement (57) étant formées de sorte que, dans la position étendue, un espace (53) de carcasse se trouve entre des sections d'emboîtement (57) adjacentes pour permettre un déplacement relatif entre elles lors de la flexion de la structure de paroi. Un profilé d'insertion (50) se situe dans l'espace (53) de carcasse de la structure de paroi tubulaire sur un intérieur de la structure de paroi pour recouvrir au moins partiellement l'espace (53) de carcasse.