Flexible pipe for conveying hydrocarbons having a high corrosion resistance, and method for making same

The invention relates to a flexible tubular duct (1) for conveying corrosive fluids and used in the field of petroleum extraction at sea. The invention provides a flexible tubular duct that comprises at least one inner carcass (2) and a polymer sealing sheath (3), said inner carcass having a reinfor...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	MARCHAND, DIDIER
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING ENGINEERING ELEMENTS AND UNITS 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 PIPES SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL WEAPONS
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Beschreibung
Zusammenfassung:	The invention relates to a flexible tubular duct (1) for conveying corrosive fluids and used in the field of petroleum extraction at sea. The invention provides a flexible tubular duct that comprises at least one inner carcass (2) and a polymer sealing sheath (3), said inner carcass having a reinforcement metal profile (7) that is helically wound. The duct is further characterised in that said reinforcement metal profile (7) is made of an alloy having the following weight composition: 30 to 32% of Ni; 26 to 28% of Cr; 6 to 7% of Mo; 0.10 to 0.3% of N; 0.015% of C; 2% at most of Mn; 0.5 to 1.5% of Cu; 0.5% at most of impurities, the remainder consisting of Fe.