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US 12,768,476 B2Granted
Composite pipe
AssigneeSaudi Arabian Oil Company
InventorsMahmoud A. Dweib, Omar A. Aljallal, Haytham A. Otaibi
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Abstract
A composite pipe includes a hollow, cylindrical liner, a flange end attachment comprising a flange and a cylindrical main body with a bore extending therethrough within which an end portion of the liner is disposed, and a thermoset outer layer comprising resin-impregnated filaments. The filaments of the thermoset outer layer are in contact with and wound about at least a portion of an external surface of the liner and at least a portion of an external surface of the cylindrical main body of the flange end attachment.
Claims18
A composite pipe comprising:
- a hollow, cylindrical liner comprising 3-5% of nano-scale basalt powder;
- a flange end attachment comprising a flange and a cylindrical main body with a bore extending therethrough within which an end portion of the liner is disposed;
- and
- a thermoset outer layer comprising resin-impregnated filaments, wherein filaments of the thermoset outer layer are in contact with and wound about:
- at least a portion of an external surface of the liner;
- and
- at least a portion of an external surface of the cylindrical main body of the flange end attachment.
4 more elements
A method comprising:
- introducing a hollow, cylindrical liner comprising 3-5% of nano-scale basalt powder;
- disposing an end portion of the liner into a bore of a cylindrical main body of a flange end attachment;
- and
- winding resin-impregnated filaments about at least a portion of the liner and of the flange end attachment such that the filaments of the thermoset outer layer are in contact with and wound about:
- at least a portion of an external surface of the liner;
- and
- at least a portion of an external surface of the cylindrical main body of the flange end attachment.
4 more elements
Dependencies are inferred from the claim text.