Composite Wrapped Steel Tubes for Use in Umbilicals

摘要

Umbilicals may contain one or more steel tubes as well as low and medium voltage electricals and/or fillers, where one or more of the steel tubes comprise both steel and a carbon fiber composite. In an embodiment, the umbilical cable comprises an outer umbilical sheath and one or more signal conduits disposed within the outer umbilical sheath. In an embodiment, the signal conduit comprises a metallic inner wall and a carbon fiber composite outer wall disposed substantially continuously about an outer surface of the metallic inner wall. One or more conductors are typically disposed within the signal conduit. One or more fillers may be disposed about the signal conduit within the outer umbilical sheath.

主权项

1. An umbilical cable, comprising:
a. an outer umbilical sheath; b. a conduit disposed within the outer umbilical sheath, the conduit comprising:
i. a metallic inner wall; andii. a carbon fiber composite outer wall disposed substantially continuously about an outer surface of the metallic inner wall; c. a conductor disposed within the signal conduit; and d. a filler disposed proximate the conduit within the outer umbilical sheath.