Pipe element made of a hoop-wound tube with transition elements
First Claim
1. A pipe element comprising at least one hoop-wound tube, the at least one hoop-wound tube comprising a central part comprising a metal core covered by at least one hoop layer, and at least one connecting means, characterized in that the at least one hoop-wound tube also comprises at least one transition element welded, on one side, to one end of the core and, on the other side, to one end of the at least one connecting means, wherein the at least one transition element comprises a cylindrical first part, a truncated second part with a continuous section, and a cylindrical third part, and wherein an outside diameter of the cylindrical first part is substantially identical to an outside diameter of the core, a thickness of the cylindrical first part is substantially identical to a thickness of the core, an outside diameter of the cylindrical third part is substantially identical to an outside diameter of the connecting means, and a thickness of the cylindrical third part is substantially identical to a thickness of the connecting means.
1 Assignment
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Accused Products
Abstract
The invention relates to a pipe element comprising at least one hoop-wound tube (T), the hoop-wound tube (T) comprising a central part consisting of a metal core (A) covered by at least one hoop layer (F), at least one connecting part(C). Hoop-wound tube (T) also comprises at least one transition element (B) welded, on one side, to one end of the core (A) and, on the other side, to one end of connecting part (C). This pipe element can be used as an auxiliary line of a drilling riser pipe.
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Citations
11 Claims
- 1. A pipe element comprising at least one hoop-wound tube, the at least one hoop-wound tube comprising a central part comprising a metal core covered by at least one hoop layer, and at least one connecting means, characterized in that the at least one hoop-wound tube also comprises at least one transition element welded, on one side, to one end of the core and, on the other side, to one end of the at least one connecting means, wherein the at least one transition element comprises a cylindrical first part, a truncated second part with a continuous section, and a cylindrical third part, and wherein an outside diameter of the cylindrical first part is substantially identical to an outside diameter of the core, a thickness of the cylindrical first part is substantially identical to a thickness of the core, an outside diameter of the cylindrical third part is substantially identical to an outside diameter of the connecting means, and a thickness of the cylindrical third part is substantially identical to a thickness of the connecting means.
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11. A pipe element comprising:
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at least one hoop-wound tube, a central part of the at least one hoop-wound tube comprising a metal core covered by at least one hoop layer; at least one connecting part; and at least one transition element comprising a cylindrical first part welded to the core, welded to the core, a cylindrical second part welded to the at least one connecting part, and a conically tapered section between the cylindrical first part and the cylindrical second part, wherein an outside diameter of the cylindrical first part is substantially identical to an outside diameter of the core, a thickness of the cylindrical first art is substantially identical to a thickness of the core, an outside diameter of the cylindrical third part is substantially identical to an outside diameter of the at least one connecting part, and a thickness of the cylindrical third art is substantially identical to a thickness of the at least one connecting part.
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Specification