US 9,851,027 B2Granted

Submarine flexible pipe

AssigneePrysmian S.p.A.

InventorsPietro Anelli, Rodolfo Sica, Gabriele Perego, Carlos Alberto Ferreira Godinho

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Abstract

Submarine flexible pipe includes a metal flexible carcass, an inner polymeric liner arranged in a radially outer position with respect to the metal flexible carcass, a protective polymeric outer sheath and a mechanical armor structure arranged in a radially inner position with respect to the protective polymeric outer sheath, the mechanical armor structure being potentially exposed to water contact. The mechanical armor structure includes a pressure resistant armor and a tensile armor arranged in a radially outer position with respect to the inner polymeric liner. The mechanical armor structure includes a plurality of carbon steel elongated elements, each of the carbon steel elongated elements being coated by an aluminum cladding.

Claims15

Dependent claims

A submarine flexible pipe, comprising:

a metal flexible carcass;
an inner polymeric liner arranged in a radially outer position with respect to said metal flexible carcass;
a protective polymeric outer sheath;
and
a mechanical armor structure arranged in a radially inner position with respect to said protective polymeric outer sheath, said mechanical armor structure being potentially exposed to water contact, said mechanical armor structure comprising a pressure resistant armor and a tensile armor arranged in a radially outer position with respect to said inner polymeric liner, wherein said mechanical armor structure comprises a plurality of carbon steel elongated elements, each of said carbon steel elongated elements being coated by an aluminum cladding exposed to a potential contact with water.

2 more elements

Dependencies are inferred from the claim text.