Patent ID: 6146052
Filing Date: 2000-11-14
Classification: E21B,F16L,H01B

Abstract:
A dynamic umbilical intended to hang in catenary form between a connection point on the seabed and a connection point located at a sea surface which can be attached to a floating structure, which umbilical is of the type that is low in weight per running meter and comprises:a core member extending from one to the other end of the umbilical along a longitudinal axis of said umbilical;a spacer means arranged radially outwardly of the core member and including channels which twist around the core member along the length of said core member, andarranged inside said channels and movable relative to said channels, a first fluid flowline means for at least one fluid,wherein, along at least one first portion of the umbilical, the core member serves as both a load-bearing member and a fluid flow member for a second fluid andwherein, along at least one second portion of the umbilical, the core member serves only as a load-bearing member and a second fluid flowline means for said second fluid is arranged radially outside the core member.