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1. 发明授权

US11614185B2 Threaded joint for oilfield pipes 有权
公开(公告)号：US11614185B2
公开(公告)日：2023-03-28
申请号：US16764259
申请日：2018-11-07
申请人： JOINT STOCK COMPANY “PERVOURALSK PIPE PLANT” (JSC “PNTZ”)
发明人： Nikita Evgenyevich Glukhih , Sergey Nikolaevich Barabanov , Artem Vladimirovich Zaboyarkin , Sergei Vladimirovich Alexandrov , Vladislav Vladimirovich Golovin , Vasily Alexandrovich Morgunov , Catalin Teodoriu , Javier Holzmann, Berdasco , Robert Van Helvoirt
IPC分类号： F16L15/06 , E21B17/042 , F16L15/00
摘要： A threaded joint for casing pipes and production pipes has a threaded portion, and a metal-metal type sealing assembly structure in the form of a combination of sealing elements which provide 100% effective functioning of the joint under compression and tension, inter alia under the effect of internal and external fluid pressure, by observing the size ratio criteria of a ball-and-cone type seal, in which a radial sealing surface has two consecutively arranged toroidal surfaces which, in the event of axial contact between flanges, form, together with a mating sealing surface of a female member, two seals which remain tight under any combination of loads. The technical result of the group of inventions is an increase in the reliability of the threaded joint under the effect of static and variable operating loads, including external pressure, compression, twisting, and combined loads during the bending and turning of a pipe string, wherein the pipes can be used in the construction of wells having a degree of deviation of up to 13°/10 m.

2. 发明申请

US20230071084A1 Sealing device between two conduits, in particular for transporting a fluid comprising a corrosive and/or abrasive component 有权
公开(公告)号：US20230071084A1
公开(公告)日：2023-03-09
申请号：US17760471
申请日：2020-02-14
申请人： TECHLAM
发明人： Olivier MOOG , Michel GUY , Antoine PIASI , Mathieu GUILLOTIN
IPC分类号： F16L58/18 , F16L15/00 , F16L15/04
摘要： The invention relates to a scaling device (100) between two pipes (10, 20), each pipe comprising an internal coating (RI10, RI20) which is made from a material resistant to corrosion and/or abrasion, characterised in that the device (100) comprises at least one sealing line (L2, L2′) formed by a circumferential groove (12), which is made in the internal coating (RI10, RI20) of one of the two pipes (10, 20), receiving a circumferential protuberance (22) which is made in the internal coating (RI10, RI20) of the other of the two pipes (10, 20), the protuberance (22) being configured to mechanically interfere radially with the groove (12) over at least one circumferential zone (Z2, Z′2).

3. 发明申请

US20230044251A1 THREADED JOINT FOR PIPES 有权
公开(公告)号：US20230044251A1
公开(公告)日：2023-02-09
申请号：US17757722
申请日：2020-09-11
申请人： JFE STEEL CORPORATION
发明人： Jun TAKANO , Takamasa KAWAI , Takuya NAGAHAMA , Seigo GOTO , Masaki YOSHIKAWA , Tsuyoshi YONEYAMA
IPC分类号： E21B17/042 , F16L15/00 , F16L15/06
摘要： To prevent fracture of a box under a tensile load without increasing the outer diameter of the box. The presently disclosed threaded joint for pipes includes a pin provided with a male thread portion at one end of a first pipe, and a box provided with a female thread portion at one end of a second pipe, where each of a plurality of thread grooves of the female thread portion has a corner portion on a load flank side and a corner portion on a stabbing flank side on a thread bottom side, a corner portion on a load flank side of a first thread groove includes a first arc portion that has a first curvature radius, and a second arc portion that has a second curvature radius, and a ratio of the second curvature radius to the first curvature radius is 3 or more.

4. 发明申请

US20230037968A1 METAL SEAL WELD-ON CONNECTOR FOR CONDUCTOR CASING 有权
公开(公告)号：US20230037968A1
公开(公告)日：2023-02-09
申请号：US17794014
申请日：2021-01-20
申请人： UNITED DRILLING TOOLS LTD.
发明人： PRAMOD KUMAR GUPTA
IPC分类号： F16L15/00
摘要： The present invention relates to an improved weld-on connector to achieve 5 high tensile strength, burst pressure and collapse pressure. The present invention relates to the metal seal weld-on connector for conductor casing with different types of sealings and several other designed features to provide an improved strength for the threaded connection.

5. 发明授权

US11560763B2 Methods and apparatus for pre-torque detection in a threaded connection 有权
公开(公告)号：US11560763B2
公开(公告)日：2023-01-24
申请号：US16668256
申请日：2019-10-30
申请人： FORUM US, INC.
发明人： Mithun Singla
IPC分类号： E21B19/16 , B25B23/14 , F16L15/00
摘要： A wrench assembly comprises an upper clamp assembly adapted to grip a first tubular, a lower clamp assembly coupled to the upper clamp assembly, the lower clamp assembly adapted to grip a second tubular, wherein the upper clamp assembly includes a plurality of torqueing cylinders coupled thereto, and a torque detection circuit in fluid communication with the torqueing cylinders, wherein the torque detection circuit is configured to apply a rotational force to the upper clamp assembly for a predetermined period of time prior to applying a target torque value to complete a threaded connection.

6. 发明授权

US11560760B2 Threaded tubular connection 有权
公开(公告)号：US11560760B2
公开(公告)日：2023-01-24
申请号：US15749400
申请日：2016-08-05
申请人： Hydril Company
发明人： David Mutis Rueda
IPC分类号： F16L15/06 , E21B17/042 , F16L15/04 , F16L15/00
摘要： A tubular connection comprising a longitudinal axis, a pin member comprising a distal pin end, a tapered pin thread having a constant pin taper angle α1 with respect to the longitudinal axis, and a pin sealing surface located between the pin thread and the distal pin end, and a box member comprising a distal box end, a box sealing surface, and a tapered box thread having a constant box taper angle β1 with respect to the longitudinal axis and located between the box sealing surface and the distal box end, and wherein the pin thread is configured to cooperate by make up with the box thread along a cooperating area, while having a radial thread interference between the pin thread and the box thread along at least part of the cooperating area, the pin sealing surface and the box sealing surface are configured to contact each other upon make-up in a sealing manner while forming a metal to metal seal, and the pin taper angle α1 is larger than the box taper angle β1.

7. 发明申请

US20230010421A1 SELF-REPAIRING EXPANDABLE TUBULAR APPARATUS 有权
公开(公告)号：US20230010421A1
公开(公告)日：2023-01-12
申请号：US17371349
申请日：2021-07-09
申请人： SAUDI ARABIAN OIL COMPANY
发明人： Ala-Edeen Herzallah
IPC分类号： F16L15/00
摘要： A system includes a box end disposed on a first tubular. The box end includes a first shoulder, a sealing surface, a first distal portion, and first threads disposed between the sealing surface and the first distal portion. The system further includes a pin end on a second tubular. The pin end includes a second shoulder, a second distal portion comprising an extended lip, and second threads disposed between the second shoulder and the extended lip. A first swellable element is disposed around the extended lip and the pin end is inserted into the box end to form the expandable connection. Upon expansion of the expandable connection, the first swellable element seals against the sealing surface. Upon separation of the expandable connection, the extended lip of the pin end acts as a floating seal assembly with the box end acting as a receptacle for the floating seal assembly.

8. 发明授权

US11549621B2 Fluid connector 有权
公开(公告)号：US11549621B2
公开(公告)日：2023-01-10
申请号：US15734308
申请日：2019-06-05
申请人： Parker-Hannifin Corporation
发明人： Phillip A. Landis , Diane M. Artman
IPC分类号： F16L15/00 , F16L15/04 , F16L43/02 , F16L41/03
摘要： An example fitting includes: a fitting body having counterbore, where the counterbore defines an annular shoulder within tire fitting body: a spring having a first end interfacing with the annular shoulder of the counterbore; and a seal carrier having: (i) a first end face interfacing with a second end of the spring, (ii) a second end face configured to interface with an internal surface of a port, such that the spring is configured to apply a biasing force on the seal carrier toward the internal surface of the port, (iii) a first annular groove on an exterior peripheral surface of the seal carrier, where the first annular groove is configured to have a radial seal disposed therein, and (iv) a second annular groove in the second end face, where the second annular groove is configured to have a face seal disposed therein.

9. 发明授权

US11549620B2 Screw joint for oil well pipe 有权
公开(公告)号：US11549620B2
公开(公告)日：2023-01-10
申请号：US16977835
申请日：2019-02-14
申请人： JFE STEEL CORPORATION
发明人： Takamasa Kawai , Masaki Yoshikawa , Jun Takano , Takuya Nagahama , Haruhiko Seki
IPC分类号： F16L15/00 , E21B17/042 , F16L15/04 , F16L15/06
摘要： A screw joint in which an efficient screw length of a joint portion is achieved. This screw joint is for an oil well pipe of an integral type and includes: (i) a pin that is provided with a male screw portion which is a male taper screw, at one end of a steel pipe; and (ii) a box that is provided with a female screw portion which is a female taper screw fitted to the male screw portion, at one end of the steel pipe, in which a structure, in which the pin and the box are in metal contact with each other to seal a fluid, is provided at least at one place of a seal portion on an outer peripheral surface side of a pipe end side of the pin and a seal portion on an inner peripheral surface side of a pipe end side of the box.

10. 发明授权

US11512538B2 Wedge thread connection for tubular goods 有权
公开(公告)号：US11512538B2
公开(公告)日：2022-11-29
申请号：US16394448
申请日：2019-04-25
申请人： Hydril Company
发明人： Jonathan Robert Breen , David Mutis Rueda , Andrew Henry Tate
IPC分类号： F16L15/00 , E21B17/042 , E21B17/08
摘要： A tubular connection includes a first joint of casing having an integral box end with an internal female wedge threaded zone having wedge threads disposed on a portion of the integral box end, and a second joint of casing having an integral pin end with an external male wedge threaded zone having wedge threads disposed on a portion of the integral pin end. The external male wedge threads engage with the internal female wedge threads. The second joint of casing has an internal diameter D1, and also includes an internal annular recess with an internal diameter D2. D2 is greater than D1, and the annular recess is disposed longitudinally along an inner surface of the second joint of casing. The annular recess is positioned radially adjacent to a portion of the external male threads disposed on a lower portion of the pin end.

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