Patent ID: 8653361

Claim:
An umbilical for transmission of fluids and electric current/signals from the sea surface to equipment arranged on the sea bed, said umbilical being adapted for use at depths where umbilicals having metal load carrying elements and fluid pipes and ropes can create yield stresses that cause the metal load carrying elements to be torn off, said umbilical comprising: a plurality of said fluid pipes, said plurality of fluid pipes being configured for transmission of fluid from the sea surface to equipment arranged on the sea bed; electric conductors/wires collected in a bundle; a filler material arranged at least partly around and between the plurality of fluid pipes and the electric conductors/wires; a protective sheath enclosing the plurality of fluid pipes, electric conductors/wires and filler material, material; and separate load carrying elements, said separate load carrying elements being light weighted rods of composite material having embedded strength fibers, wherein the filler material, the light weighted rods of composite material having embedded strength fibers, the plurality of fluid pipes and the electric conductors/wires are laid in a helix configuration about a longitudinal axis of the umbilical, and wherein there are no fluid pipes configured for transmission of fluid from the sea bed to the sea surface included in the umbilical, wherein the light weighted rods comprise light weighted rods located at a perimeter of the umbilical and in contact with the protective sheath, the perimeter light weighted rods being formed from composite material having embedded strength fibers.