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1. 发明公开

EP2951479A1 AN UNBONDED FLEXIBLE ARMORED RISER PIPE 审中-公开
标题翻译：粘合柔性增强提升管
公开(公告)号：EP2951479A1
公开(公告)日：2015-12-09
申请号：EP14746702.1
申请日：2014-01-30
申请人： National Oilwell Varco Denmark I/S
发明人： CAPPELN, Christian Ditlev , SKAANING, Christian Emil
IPC分类号： F16L11/08
CPC分类号： E21B17/01 , B29C47/0023 , B29C47/021 , B29C47/04 , B29K2027/16 , B29K2027/18 , B32B1/08 , B32B3/266 , B32B3/30 , B32B15/08 , B32B15/18 , B32B27/304 , B32B27/32 , B32B27/34 , B32B2597/00 , F16L11/082
摘要： An unbonded flexible armored pipe for transportation of fluids. The pipe has a center axis and a length and comprises a carcass (6, 16) and an innermost sealing sheath (5) with an inner surface surrounding the carcass. The carcass comprises at least one elongate armor element wound to surround the center axis with a winding angle to the center axis defining a winding direction and a supporting surface facing towards the inner surface of the innermost sealing sheath and with a supporting surface radius Sr. The supporting surface (36) comprises a primary surface area (21 'a, 36a, 46a, 56a, 66a), and a plurality of restraining regions (21 "a, 2 ΓΤ), 21 "c, 36b, 46b, 56b, 66b), in the form of orifices in and/or protuberances and/or indentations from the primary surface area, wherein the restraining regions each have a length determined along the winding direction of the elongate armor element which is up to about Sr times Pi. An unbonded flexible armored pipe for transportation of fluids. The pipe has a center axis and a length and comprises a carcass (6, 16) and an innermost sealing sheath (5) with an inner surface surrounding the carcass. The carcass comprises at least one elongate armor element wound to surround the center axis with a winding angle to the center axis defining a winding direction and a supporting surface facing towards the inner surface of the innermost sealing sheath and with a supporting surface radius Sr. The supporting surface (36) comprises a primary surface area (21 'a, 36a, 46a, 56a, 66a), and a plurality of restraining regions (21 "a, 2 ΓΤ), 21 "c, 36b, 46b, 56b, 66b), in the form of orifices in and/or protuberances and/or indentations from the primary surface area, wherein the restraining regions each have a length determined along the winding direction of the elongate armor element which is up to about Sr times Pi.

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