利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

12 条记录 (耗时 0.014 秒)

    Threaded joint for oil well tubing
    1.
    发明授权
    Threaded joint for oil well tubing 有权

    公开(公告)号：US10900595B2

    公开(公告)日：2021-01-26

    申请号：US16077912

    申请日：2016-12-16

    申请人： JFE Steel Corporation

    发明人： Takamasa Kawai ,  Taro Kanayama ,  Masaki Yoshikawa ,  Haruhiko Seki ,  Masateru Ueta ,  Jun Takano ,  Tsuyoshi Yoneyama

    IPC分类号： F16L15/04 ,  E21B17/042

    摘要： Provided is a threaded joint for an oil well tubing which possesses sufficient sealability when the external pressure is applied to the threaded joint by suppressing the plastic deformation of a nose portion and sufficient galling resistance. The sufficient galling resistance is provided by preventing the occurrence of galling at the time of making up the threaded joint during verification test performed in accordance with ISO13679:2002 even when the threaded joint for an oil well tubing has a small thickness. Parameters including sizes of the threaded joint at positions of a seal point and shoulder portions satisfy formula 1 ((Ds12−Ds02)/(D12−D02)≥0.30), formula 2 (tan θ>(ΔD+δ)/{2(Lt−Ls)}), and Ls/Ln is set to 0.2 to 0.6.

    Threaded joint for pipes
    3.
    发明授权
    Threaded joint for pipes 有权

    公开(公告)号：US11905765B2

    公开(公告)日：2024-02-20

    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： F16L15/06 ,  E21B17/042 ,  F16L15/00

    CPC分类号： E21B17/042 ,  F16L15/001 ,  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.

    THREADED JOINT FOR OIL WELL TUBING
    4.
    发明申请
    THREADED JOINT FOR OIL WELL TUBING 审中-公开

    公开(公告)号：US20190056049A1

    公开(公告)日：2019-02-21

    申请号：US16077912

    申请日：2016-12-16

    申请人： JFE Steel Corporation

    发明人： Takamasa Kawai ,  Taro Kanayama ,  Masaki Yoshikawa ,  Haruhiko Seki ,  Masateru Ueta ,  Jun Takano ,  Tsuyoshi Yoneyama

    IPC分类号： F16L15/04

    摘要： Provided is a threaded joint for an oil well tubing which possesses sufficient sealability when the external pressure is applied to the threaded joint by suppressing the plastic deformation of a nose portion and sufficient galling resistance. The sufficient galling resistance is provided by preventing the occurrence of galling at the time of making up the threaded joint during verification test performed in accordance with ISO13679:2002 even when the threaded joint for an oil well tubing has a small thickness. Parameters including sizes of the threaded joint at positions of a seal point and shoulder portions satisfy formula 1 ((Ds12−Ds02)/(D12−D02)≥0.30), formula 2 (tan θ>(ΔD+δ)/{2(Lt−Ls)}), and Ls/Ln is set to 0.2 to 0.6.

    THREADED JOINT FOR HEAVY-WALLED OIL COUNTRY TUBULAR GOODS
    5.
    发明申请
    THREADED JOINT FOR HEAVY-WALLED OIL COUNTRY TUBULAR GOODS 有权
    用于重型油田国家管件的螺纹接头

    公开(公告)号：US20160319966A1

    公开(公告)日：2016-11-03

    申请号：US15108856

    申请日：2014-10-30

    申请人： JFE STEEL CORPORATION

    发明人： Takamasa Kawai ,  Kazunari Takahashi ,  Hiroshi Chikatsune ,  Masaki Yoshikawa ,  Jun Takano ,  Takuya Nagahama ,  Masateru Ueta ,  Tsuyoshi Yoneyama ,  Hideo Sato ,  Haruhiko Seki

    IPC分类号： F16L15/04 ,  F16L15/06 ,  E21B17/042 ,  F16L15/00

    CPC分类号： F16L15/04 ,  E21B17/042 ,  F16L15/004 ,  F16L15/06

    摘要： A threaded joint for heavy-walled oil country tubular goods can both ensure sealability and prevent galling in a state where a high external pressure is also applied to the threaded joint in addition to a high compressive force. A surface of a pin side forming a seal portion and a surface of a box side forming a seal portion are formed into a convex curved surface and a tapered surface, respectively. A seal thickness ts of the pin is 15 mm or less, a shape parameter ts/D (D: outer diameter of a pin raw pipe portion) is 0.045 or more, and a complete thread length ratio L/t (L: complete thread length of the pin, t: wall thickness of the pin raw pipe portion) is 4.0 or less.

    摘要翻译： 用于重型油井筒的螺纹接头除了具有高的压缩力之外，还可以在螺纹接头上施加高的外部压力的状态下确保密封性并防止磨损。 形成密封部的销侧的表面和形成密封部的盒侧的表面分别形成为凸曲面和锥面。 销的密封厚度ts为15mm以下，形状参数ts / D（D：销原料管部的外径）为0.045以上，完全螺纹长度比L / t（L：完全螺纹 销的长度，t：销原料管部的壁厚）为4.0以下。

    Threaded pipe joint
    6.
    发明授权
    Threaded pipe joint 有权

    公开(公告)号：US10711533B2

    公开(公告)日：2020-07-14

    申请号：US15561778

    申请日：2016-03-28

    申请人： JFE Steel Corporation

    发明人： Masaki Yoshikawa ,  Kazunari Takahashi ,  Taro Kanayama ,  Jun Takano ,  Takamasa Kawai ,  Tsuyoshi Yoneyama

    IPC分类号： E21B17/042 ,  E21B17/08 ,  F16L15/04

    摘要： A threaded pipe joint, when acted upon by a tensile load, does not break on the female thread-side of a first thread section of a second thread series that extends from an intermediate shoulder. The threaded pipe joint reliably undergoes tensile rupture on the female thread-side of a first thread section of a first thread series, which is the original critical cross-section site. The threaded pipe joint is configured so that when the male and female threads of the intermediate shoulder are screwed together, the load flank-side thread gaps L1G and L2G of a first thread series, which is the radially inward thread series, and a second thread series, which is the radially outward thread series, on the two sides of the intermediate shoulder always satisfy the relationship L1G

    THREADED JOINT FOR OIL COUNTRY TUBULAR GOODS (AS AMENDED)
    10.
    发明申请
    THREADED JOINT FOR OIL COUNTRY TUBULAR GOODS (AS AMENDED) 审中-公开
    用于油类国家管件的螺纹接头（如修订）

    公开(公告)号：US20160130884A1

    公开(公告)日：2016-05-12

    申请号：US14897802

    申请日：2014-06-09

    申请人： JFE STEEL CORPORATION

    发明人： Takamasa Kawai ,  Kazunari Takahashi ,  Hiroshi Chikatsune ,  Masaki Yoshikawa ,  Jun Takano ,  Takuya Nagahama ,  Masateru Ueta ,  Hideo Sato ,  Haruhiko Seki ,  Tsuyoshi Yoneyama

    IPC分类号： E21B17/042 ,  F16L15/06

    CPC分类号： E21B17/042 ,  F16L15/004 ,  F16L15/06

    摘要： In a joint for oil country tubular goods, a pitch change is made such that an internally-thread pitch has the same value as an externally-thread pitch from a thread end portion on a box end side to a pitch change position taken on a box center side with respect to a position away from the thread end portion by ½ of an entire length of the threaded portion, and the internally-thread pitch is changed to a value less than the externally-thread pitch at the pitch change position so that a thread gap is gradually decreased from the pitch change position to a position of the thread end portion on the box center side, and the thread gap is eventually set to a value which is 0.2 to 0.8 times as large as the thread gap before the pitch change is made.

    摘要翻译： 在用于油井管状物品的接头中，进行间距改变，使得内螺纹节距具有与从箱端侧的螺纹端​​部到盒子上的间距变化位置的外螺纹间距相同的值 中心侧相对于远离螺纹端部的位置的螺纹部分的整个长度的1/2，并且内螺纹节距改变为小于在间距变化位置处的外螺纹间距的值，使得 螺纹间隙从间距变化位置逐渐减小到箱体中心侧的螺纹端​​部的位置，螺纹间隙最终设定为间距变化前的螺纹间隙的0.2〜0.8倍的值 是做的