Flexible, armoured pipe and use of same
AssigneeNKT Flexibles I/S
InventorsKristian Glejbol, Jakob Wedel-Heinen
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AssigneeNKT Flexibles I/S
InventorsKristian Glejbol, Jakob Wedel-Heinen
Estimating the term…
An armoured flexible pipe consists of an inner liner (3), on the inside of which a carcass (1) is provided, while the outer side of the inner liner is surrounded by a layer of pressure armour and a layer of tensile armour, which in turn are surrounded by one or more layers of thermally insulating bands which are shielded from the surroundings by an outer sheath. With the object of ensuring a sufficiently low transport of heat through the walls of the pipe, on the outside of the pressure and tensile armour layers (5, 6, 7, 8) thermally insulating bands are provided, which bands are made of a polymer or a polymeric composition, such as a polymer containing at least 50% polypropylene. The armoured flexible pipe according to the invention is especially advantageous for use in the extraction, transport or refining of mineral oil or related fluids.
Armoured flexible pipe comprising an inner liner (3), on the inside of which a carcass (1) is provided, while the outer side of the inner liner is surrounded by one or more layers of pressure (5,6) and tensile (7,8) armour, which in turn is surrounded by one or more layers of thermally insulating bands (10), which are shielded from the surroundings by an outer sheath (9), characterized in that the thermally insulating bands (10) are provided between the outer sheath (9) and the tensile armour (7,8), and are made of a polymer or a polymeric mixture.
Armoured flexible pipe according to one or more of the foregoing claims, characterized in that the breadth of the insulating bands (10) lies in the interval 10-100 mm.
Use of an armoured pipe according to any of the foregoing claims for the extraction, transport or refining of mineral oil, gas or related fluids.
Dependencies are inferred from the claim text.