Flexible pipe having pressure armour layer
AssigneeWellstream International Limited
InventorsRichard Alastair Clements, Zhimin Tan
Life of this patent
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Abstract
A flexible pipe body and a method of manufacturing flexible pipe body and a tape used during the manufacturing are disclosed. The flexible pipe body includes at least one layer of helically wound tape, adjacent windings in the layer of tape being interlocked by a hooked region of a winding nested in a valley region of an adjacent winding wherein the tape has a cross-sectional profile comprising a first contact surface and parallel spaced apart side walls substantially perpendicular to the contact surface.
Claims26
Flexible pipe body for transporting production fluids, comprising:
- at least one layer of helically wound tape, adjacent windings in the layer of tape being interlocked by a hooked region of a winding nested in a valley region of an adjacent winding;
- wherein
- the tape has a cross-sectional profile comprising a first contact surface and parallel spaced apart side walls substantially perpendicular to the contact surface.
An elongate metallic or polymeric or composite tape for forming a layer of interlocked windings in flexible pipe body, a cross-section of the tape comprising:
- a hooked region and a valley region, a hooked region of a winding being nestable in a corresponding valley region of an adjacent winding to thereby interlock adjacent windings;
- and
- a first contact surface and parallel spaced apart side walls substantially perpendicular to the contact surface.
26-27. (canceled)
Dependencies are inferred from the claim text.