PRESSURE ARMOR WITH INTEGRAL ANTI-COLLAPSE LAYER

1 . A tubular assembly, comprising:

a fluid barrier layer; and

a pressure armor layer, the pressure armor layer comprising:

a first layer comprising at least one metallic layer, the first layer disposed external to the fluid barrier layer; and

a second layer comprising a plurality of composite helical wraps disposed external to the first layer.

2 . The tubular assembly of claim 1 , wherein the first layer comprises an anti-extrusion layer that resists extrusion of the fluid barrier layer.

3 . The tubular assembly of claim 1 , wherein the at least one metallic layer comprises one or more metallic strips.

4 .- 6 . (canceled)

7 . The tubular assembly of claim 1 , wherein the at least one metallic layer comprises one or more shaped wires.

8 . (canceled)

9 . (canceled)

10 . The tubular assembly of claim 1 , wherein the at least one metallic layer of the first layer comprises a polymer tape having metallic fibers.

11 .- 13 . (canceled)

14 . The tubular assembly of claim 1 , wherein the first layer comprises at least one protrusion disposed into a space between adjacent non-interlocked helical wraps of the second layer.

15 . The tubular assembly of claim 1 , wherein the at least one metallic layer of the first layer is an interlocked metallic layer.

16 . (canceled)

17 . (canceled)

18 . A flexible pipe, comprising:

a fluid barrier layer;

a hoop strength layer comprising non-interlocked helical wraps; and

an anti-extrusion layer comprising at least one metallic layer, the anti-extrusion layer disposed between the fluid barrier layer and hoop strength layer that resists extrusion of the fluid barrier layer into gaps formed between the non-interlocked helical wraps of the hoop strength layer.

19 . The flexible pipe of claim 18 , wherein the at least one metallic layer comprises one or more metallic strips.

20 . The flexible pipe of claim 18 , wherein one or more gaps are formed between the one or more metallic strips of the at least one metallic layer.

21 .- 23 . (canceled)

24 . The flexible pipe of claim 18 , wherein at least one of the metallic strips is step-shaped having a lower portion and an upper portion.

25 . (canceled)

26 . The flexible pipe of claim 18 , wherein the at least one metallic layer of the first layer comprises a polymer tape having metallic fibers.

27 . The flexible pipe of claim 19 , wherein the at least one metallic strip comprises at least one protrusion disposed in one or more of the gaps formed between the non-interlocked helical wraps of the hoop strength layer.

28 . (canceled)

29 . (canceled)

30 . The flexible pipe of claim 18 , wherein the anti-extrusion layer comprises at least one protrusion disposed into a space between adjacent non-interlocked helical wraps of the hoop strength.

31 . The flexible pipe of claim 18 , wherein the at least one metallic layer of the anti-extrusion layer is an interlocked metallic layer.

32 .- 39 . (canceled)

40 . A flexible pipe, comprising:

a fluid barrier layer;

a first pressure armor layer; and

a second pressure armor layer; and

an anti-collapse sheath layer disposed between the first pressure armor layer and second pressure armor layer.

41 . The flexible pipe of claim 40 , wherein the first pressure armor layer comprises a metallic interlocked layer.

42 . The flexible pipe of claim 18 , further comprising an anti-collapse sheath layer disposed between the hoop strength layer and the anti-extrusion layer.

43 . The flexible pipe of claim 40 , wherein the second pressure armor layer comprises a hoop strength layer having non-interlocked helical wraps.

44 . The flexible pipe of claim 43 , wherein the second pressure armor layer comprises composite helical wraps.