公开(公告)号：US20220034456A1

公开(公告)日：2022-02-03

申请号：US17470701

申请日：2021-09-09

申请人： Guangzhou Marine Geological Survey

发明人： Tingting WU ,  Jiangong WEI

IPC分类号： F17D5/00 ,  F16L53/34 ,  F16L55/28

摘要： The present application discloses a device and method for detecting and ablating hydrates in a natural gas pipeline. The device includes a transmission mechanism, a detection mechanism and an ablation mechanism. The detection mechanism and the ablation mechanism are both connected to the transmission mechanism through an elastic connector, such that the device can smoothly pass through bends in the natural gas pipeline. The transmission mechanism includes a universal wheel component, which forms static friction with an outer wall of an inner natural gas pipeline, such that the device can move along the inner natural gas pipeline. The detection mechanism detects the temperature of the natural gas pipeline and determines whether hydrates are generated in the natural gas pipeline to block the pipeline, and then the blockage is heated by the ablation mechanism to ablate the hydrates.

公开(公告)号：US10989331B2

公开(公告)日：2021-04-27

申请号：US16337541

申请日：2017-09-28

申请人： SAIPEM S.A.

发明人： Vincent Cocault-Duverger ,  Antoine Jardin ,  Vincent Chojnacki

IPC分类号： F16L1/15 ,  F16L1/20 ,  F16L53/34 ,  F16L9/19

摘要： A method of installing at sea a double-walled preheated undersea pipe for transporting fluids, wherein for each new pipe section to be assembled to a pipe that is already installed at sea: the method involves preheating the inner wall unit element inside the outer wall unit element of the new pipe section; assembling the inner wall unit elements of the new pipe section to the inner wall of the pipe that is already installed at sea; assembling the outer wall unit element of the new pipe section to the outer wall of the pipe that is already installed at sea; lowering the new pipe section into the sea; and repeating the above for other new pipe sections to be assembled so as to prestress the pipe while it is being installed at sea.

公开(公告)号：US10816123B2

公开(公告)日：2020-10-27

申请号：US15523235

申请日：2015-10-29

申请人： SAIPEM S.A.

发明人： Narimane Settouti ,  Jacques Ruer ,  Philippe Muguerra ,  Damien Spudic

IPC分类号： H05B6/10 ,  F16L53/34 ,  H05B6/44 ,  H05B6/36

摘要： The invention provides a heater station (2) for heating fluids flowing in an undersea pipe network, the station comprising at least one heater duct (6) made of conductive material designed to be connected to an undersea pipe (4) for transporting fluids, and at least one solenoid (8) wound around a portion of the heater duct and electrically powered to heat the heater duct portion by electromagnetic induction.

公开(公告)号：US10711935B2

公开(公告)日：2020-07-14

申请号：US15523215

申请日：2015-10-29

申请人： SAIPEM S.A.

发明人： Narimane Settouti ,  Philippe Muguerra ,  Damien Spudic

IPC分类号： H05B6/10 ,  F16L53/34 ,  E21B43/017 ,  E21B36/00 ,  E21B41/02

摘要： A method of managing the heating of fluids flowing in an undersea pipe network (2-1) providing a connection between a surface installation (6) and at least one undersea production well (4). The method releasably connecting at least one fluid heater station (14a, 14b) to an undersea pipe and controlling the heater station as a function of the mode of operation of the pipe network.

公开(公告)号：US20200006870A1

公开(公告)日：2020-01-02

申请号：US16434784

申请日：2019-06-07

申请人： NEXANS

发明人： Gunnar SKARNES ,  Bent Thomas DENIS

IPC分类号： H01R4/48 ,  H01R4/60 ,  F16L53/34

摘要： A clamping device (40) for providing an electrical connection between a subsea pipeline (1) and an electrical conductor (31). The device has a clamp element (41) comprising a first leg (41a) having a first leg end (41c) and a second leg (41b) having a second leg end (41d). The legs (41a, 41b) are configured to be provided on respective sides of the pipeline (1). The clamping device has a releasable tensioning device (48) connected to one of the legs (41a, 41b). The clamping device (40) has a first state, in which the ends (41c, 41d) of the first and second legs (41a, 41b) are provided at a first distance (d1) away from each other. The clamping device (40) has a second state, in which the tensioning device (48) is tensioned, causing the ends (41c, 41d) of the first and second legs (41a, 41b) to be at a second distance (d2) away from each other, the second distance (d2) being larger than the first distance (d1). The clamping device (40) has a template hole (42) provided in one of the legs (41a, 41b). The clamping device (40) comprises a connector member (44) provided in the template hole (42). The connector member (44) is mechanically connected to the clamp element (41). The clamping device (40) has a third state, in which the tensioning device (48) is released, causing the connector member (44) to be pressed towards the pipeline (1).

公开(公告)号：US10206249B2

公开(公告)日：2019-02-12

申请号：US14858998

申请日：2015-09-18

申请人： TOKUDEN CO., LTD.

发明人： Toru Tonomura ,  Yasuhiro Fujimoto ,  Sachio Tamaki

IPC分类号： H05B6/10 ,  H05B6/02 ,  F24H1/22 ,  H05B6/44 ,  F22B1/28 ,  F24H1/16 ,  F24H1/10 ,  F16L53/34

摘要： This invention provides a fluid heating device that is free from breakage even though a conductor tube is transformed due to being heated. Concretely, this invention is provided with an electrical connecting member that constitutes a short circuit by electrically connecting each of required portions of the conductor tube, and uses the electrical connecting member that is transformable in accordance with a transformation resulting from a temperature change of the conductor tube.

公开(公告)号：US20180372258A1

公开(公告)日：2018-12-27

申请号：US16014985

申请日：2018-06-21

申请人： nVent Services GmbH

发明人： Wesley Dong ,  David G. Parman ,  Paul Becker

IPC分类号： F16L53/34 ,  F16L59/14 ,  F17D1/18

摘要： A skin effect heat tracing system including a heat tube and a heater cable with a core conductor and an electrical insulation layer surrounding the core conductor. The heater cable is sized to lie within the heat tube so that a gas-filled space is defined between an outer surface of the electrical insulation layer and an inner surface of the heat tube. During operation of the skin effect heat tracing system, the gas-filled space may be pressurized, by a gas source, above an external pressure outside the heat tube.

公开(公告)号：US10113675B2

公开(公告)日：2018-10-30

申请号：US14428309

申请日：2013-09-12

申请人： EUGEN FORSCHNER GMBH

发明人： Ludwig Puskas ,  Thomas Chaloupka

IPC分类号： F16L53/38 ,  F16L21/00 ,  F16L13/02 ,  F16L13/10 ,  F16L13/14 ,  F16L57/00 ,  F16L53/34

摘要： The invention relates to a device (1) for connecting two fluid-channeling lines (10, 20), wherein the device has a through-bore (2) for advancing the fluid and two opposite line mounts (11, 21), which terminate at a predetermined distance (4) from one another within the device. Each of these line mounts (11, 21) is designed such that it is provided with a first part (12, 22), through which the through-bore (2) leads, and a second part (13, 23), which enclosed the first part (12, 22), an annular space (14, 24) therefore being formed between the first part (12, 22) and the second part (13, 23). Each of the two fluid-channeling lines, (10, 20) is arranged in one of the line mounts (11, 21) such that it has an inner cross section (16, 26) arranged, and fixed, with sealing action against the first part (12, 22) of the device and has an outer cross section (17, 27) arranged, and fixed, in the annular space (14, 24).

公开(公告)号：US20180231163A1

公开(公告)日：2018-08-16

申请号：US15751288

申请日：2016-08-05

申请人： National Oilwell Varco Denmark I/S

发明人： Thorsten Holst ,  Anders Straarup ,  Tom Larsen

IPC分类号： F16L33/01 ,  F16L53/34 ,  F16L11/127 ,  F16L11/08

CPC分类号： F16L33/01 ,  F16L11/081 ,  F16L11/127 ,  F16L25/01 ,  F16L53/34

摘要： The present invention relates to an assembly comprising an end-fitting and an unbonded flexible pipe having a length and a longitudinal axis, said flexible pipe comprising, from the inside and out, an internal armour layer, an internal pressure sheath, at least one external armour layer and an outer sheath, the first end of the unbonded flexible pipe being terminated in the end-fitting, and the end-fitting comprising means for connecting the internal armour layer to an external electrical power source. The means comprise connection points to the internal armour layer in the unbonded flexible pipe and connection points to the electrical power source wherein the connection points for the electrical power source are mounted in a housing adapted to an outer surface-part of the end-fitting.

公开(公告)号：US20240003473A1

公开(公告)日：2024-01-04

申请号：US18169145

申请日：2023-02-14

申请人： Southwest Petroleum University

发明人： Yang TANG ,  Yulin ZHANG ,  Guorong WANG ,  Yufa HE ,  Jianfei WEI ,  Jinhai ZHAO ,  Zeliang LI ,  Jinzhong WANG ,  Wang LI ,  Wujun TONG ,  Jie WANG

IPC分类号： F16L29/00 ,  F16L53/34 ,  F16L37/00 ,  F16L37/30

CPC分类号： F16L29/007 ,  F16L53/34 ,  F16L37/004 ,  F16L37/30

摘要： A pure electric modular subsea test tree is provided, which includes a connect-disconnect device, wherein the first channel is formed in the connect-disconnect device; the connect-disconnect device is provided with a locking assembly and a connection drive mechanism for driving the locking assembly, and the first electrical connection plug is embedded in the connect-disconnect device, and the connection drive mechanism is electrically connected with the first electrical connection plug; a shear-seal assembly, wherein a second channel communicated with the first channel is formed in the shear-seal assembly; the shear-seal assembly includes at least one shear-seal device capable of plugging the second channel; a connection part is formed on the shear-seal assembly; a heating device is arranged at one end of the shear-seal device far from the connection part. The disclosure relates to a pure electric modular subsea test tree, which has fast response speed and high operation safety.