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US 11,270,812 B2Granted
Power umbilical with impact protection
AssigneeAker Solutions AS
InventorMehrdad Karimpour
Life of this patent
Estimating the term…
Abstract
The invention concerns a subsea umbilical comprising an electrical conductor (2) and/or a fluid pipe, and an outer sheath (7) surrounding the electrical conductor (2) and/or the fluid pipe. The umbilical (1, 20, 21, 25, 30, 40, 51, 60) further comprising a plurality of deformable rods (3a, 3b, 15, 23a, 23b, 26a, 27a, 26b) evenly distributed between the electrical conductor (2) and/or the fluid pipe, and the outer sheath (7) for radial load protection of said electrical conductor (2) or fluid pipe.
Claims14
A subsea umbilical comprising:
- a conduit comprising at least one of an electrical conductor and a fluid pipe;
- an outer sheath surrounding the conduit;
- a plurality of deformable rods evenly distributed between the conduit and the outer sheath for radial load protection of the conduit;
- wherein a space is formed in a gap between two adjacent deformable rods of the plurality of deformable rods;
- an outer layer element arranged between the sheath and at least one of the plurality of deformable rods;
- wherein the outer layer element is formed such that a respective deformable rod of the two adjacent deformable rods mates with the outer layer element to form, along with an adjacent deformable rod, the space such that the respective deformable rod is constrained within the subsea umbilical when the respective deformable rod is being deformed and to allow the two adjacent deformable rods to deform into the space when exposed to a radial impact force;
- and
- wherein the outer layer element is of a material of higher mechanical hardness than that of the plurality of deformable rods.
5 more elements
Dependencies are inferred from the claim text.