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...

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Bibliographic Details
Main Author MARCHAND, DIDIER
Format Patent
LanguageEnglish
Published 10.09.2015
Subjects
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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Summary: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.
Bibliography:Application Number: AU20090275782