Anti-extrusion layer with non-interlocked gap controlled hoop strength layer
AssigneeDeepflex Inc.
InventorsMark Kalman, Liang Yu
Life of this patent
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Abstract
In one aspect, the present disclosure relates to a tubular assembly with gap control. Embodiments disclosed herein relate to one or more embodiments of and methods for controlling gaps between helically wrapped layers in a pipe structure. A tubular assembly includes a fluid barrier, a first layer, and a second layer comprising a plurality of non-interlocking helical wraps and disposed on an outer surface of the first layer, in which the first layer is disposed between the fluid barrier and the second layer and configured to at least partially displace into a space created between adjacent non-interlocking helical wraps of the second layer.
Claims27
A tubular assembly comprising:
- a fluid barrier;
- a first layer;
- and
- a second layer comprising a plurality of non-interlocking helical wraps and disposed on an outer surface of the first layer,
- wherein the first layer is disposed between the fluid barrier and the second layer and configured to at least partially displace into a space created between adjacent non-interlocking helical wraps of the second layer.
A method to control gaps between adjacent non-interlocking helical wraps disposed on a tubular member, the method comprising:
- installing a control layer between a curved outer surface of the tubular member and the non-interlocking helical wraps,
- at least partially displacing the control layer between the adjacent non-interlocking helical wraps from underneath the wraps.
A flexible pipe comprising:
- a fluid barrier layer;
- a hoop strength layer with non-interlocking helical wraps;
- a bedding layer between the fluid barrier and hoop strength layer that reduces in thickness under the hoop strength layer and increases in thickness in gaps between the non-interlocking helical wraps during manufacturing, testing or operating the flexible pipe.
Dependencies are inferred from the claim text.