公开(公告)号：US11339902B2

公开(公告)日：2022-05-24

申请号：US16960614

申请日：2019-01-10

Applicant: NATIONAL OILWELL VARCO DENMARK I/S

Inventor： Jesper Ries ,  Martin Halsteen ,  Lars Rohbock ,  Bo Bøgelund

IPC: F16L17/067 ,  F16L33/01

Abstract: An end-fitting and an unbonded flexible pipe, where the unbonded flexible pipe includes from the inside and out an internal pressure sheath, at least one armor layer and an outer sheath, the end-fitting further includes a sealing element. The sealing element includes a seal casing concentrically arranged around the internal pressure sheath, the seal casing includes a recess in which a first sealing element is concentrically arranged around the internal pressure sheath such that the surface of the first sealing element at least forms a line contact with the internal pressure sheath, and a second sealing element is concentrically arranged around the internal pressure sheath in the recess such that the surface of the second sealing element at least form a line contact with the surface of the seal casing and form a line contact with the surface of the first sealing element.

公开(公告)号：US20150292663A1

公开(公告)日：2015-10-15

申请号：US14443414

申请日：2013-11-18

Applicant: NATIONAL OILWELL VARCO DENMARK I/S

Inventor： Kristian Glejbol ,  Jesper Ries

IPC: F16L39/02 ,  F16L19/07 ,  F16L35/00 ,  F16L21/00

CPC classification number: F16L39/02 ,  E21B17/20 ,  F16L11/083 ,  F16L19/07 ,  F16L21/007 ,  F16L33/01 ,  F16L35/00

Abstract: An assembly of a flexible pipe and an end-fitting, wherein the flexible pipe of the unbonded type comprises a plurality of layers including an outermost armor layer. At least the outermost armor layer is terminated and secured by securing material in a housing cavity of the end-fitting. The end-fitting comprises an annular end-fitting body structure and an annular outer casing, wherein an upper wall section of the housing cavity is provided by the outer casing. The outer casing comprises a strain-bearing fiber armored polymer layer arranged such that a tensile load subjected to the secured outermost armor layer results in strain in the strain-bearing fiber armored polymer layer.

Abstract translation: 柔性管和端部配件的组件，其中所述未连接型柔性管包括多个包括最外层装甲层的层。 至少最外层的装甲层通过将材料固定在端部件的壳体腔中来终止和固定。 端部配件包括环形端部装配体结构和环形外壳，其中壳体腔的上壁部分由外壳提供。 外壳包括应变轴承纤维铠装聚合物层，其布置成使经受固定的最外层装甲层的拉伸载荷导致应变轴承纤维铠装聚合物层中的应变。