Flexible pipe for conveying hydrocarbons having a high corrosion resistance, and method for making same
US9341288B2 · kind B2 · utility
1Cited by
4References
7Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 27, 2009 |
| Grant date | May 17, 2016 |
| Priority date | — |
| Expiry date | Jul 10, 2032 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16L58/16
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A flexible tubular duct for conveying corrosive fluids and used in the filed of petroleum extraction at sea. A flexible tubular duct includes at least one inner carcass (2) and a polymer sealing sheath (3). The inner carcass has a reinforcement metal profile (7) that is helically wound. The 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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.