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    • 1. 发明申请
    • ULTRASONIC TESTING METHOD OF THREADED JOINT OF PIPES OR TUBES
    • 管道或管道螺纹连接的超声波测试方法
    • WO2008035794A1
    • 2008-03-27
    • PCT/JP2007/068592
    • 2007-09-14
    • Sumitomo Metal Industries, Ltd.,VALLOUREC MANNESMANN OIL & GAS FRANCEHOSHINO, IkujiYAMANO, MasakiNAGASAKU, Shigeo
    • HOSHINO, IkujiYAMANO, MasakiNAGASAKU, Shigeo
    • G01N29/04F16L15/04
    • F16L15/04F16L15/004G01N29/07G01N29/11G01N29/262G01N29/265G01N2291/044G01N2291/2675
    • There is provided a method for detecting an abnormal portion (defect, non-adhering portion, and seized portion) lying at a contact region between each part of a pin and each part of a box forming a threaded joint to be used as a joint of pipe or tubes such as OCTG. This invention provides an ultrasonic testing method of a threaded joint of pipes or tubes including a pin having an external thread part, a metal seal part, and a shoulder part on an outer peripheral surface, and a box having an internal thread part, a metal seal part, and a shoulder part corresponding to each part of the pin on an inner peripheral surface and being fastened with the pin by way of a lubricant. The method according to the present invention comprising the steps of: transmitting and receiving ultrasonic waves to and from a plurality of locations along an axial direction of the threaded joint in at least one of the internal thread part, the metal seal part, and the shoulder part of the box; detecting echo intensities and reception times of echoes for the plurality of locations; and detecting an abnormal portion in the threaded joint based on axial directional distribution of the echo intensities and axial directional distribution of reception times of the echoes.
    • 提供了一种用于检测位于销的每个部分与形成螺纹接头的盒的每个部分之间的接触区域处的异常部分(缺陷,非粘附部分和被抓住部分)的方法,该方法用作接头的接头 管或管如OCTG。 本发明提供了一种管道或管的螺纹接头的超声波检测方法,其包括在外周面上具有外螺纹部,金属密封部和肩部的销,以及具有内螺纹部,金属 密封部分,以及与内周面上的销的每个部分对应的肩部,并通过润滑剂与销紧固。 根据本发明的方法包括以下步骤:在内螺纹部分,金属密封部分和肩部中的至少一个中沿着螺纹接头的轴向方向从多个位置向多个位置发送和接收超声波 箱子的一部分; 检测所述多个位置的回波的回波强度和接收次数; 并且基于回波强度的轴向分布和回波的接收时间的轴向分布来检测螺纹接头中的异常部分。
    • 7. 发明公开
    • SLIM TYPE OIL WELL PIPE FITTING
    • VERBINDUNGFÜRDURCHMESSERREDUZIERTEÖLFELDROHRE
    • EP1271037A1
    • 2003-01-02
    • EP01917578.5
    • 2001-03-29
    • SUMITOMO METAL INDUSTRIES, LTD.VALLOUREC MANNESMANN OIL & GAS FRANCE
    • SUMITANI, KatsutoshiMAEDA, JunNAGASAKU, Shigeo
    • F16L15/06
    • E21B17/042F16L15/06
    • A threaded joint for oil well pipes is provided which can guarantee a joint efficiency sufficient for practical use in deep wells, which has a decreased joint outer diameter, and which has an improved bending resistance, compression resistance, and over-torque resistance which are sufficient for use by the side track technique.
      It is an integral threaded joint for oil well pipes in which it has a joint efficiency of at least 70%, the outer diameter of the joint is larger than and at most 1.08 times the outer diameter of the oil well pipe bodies, and the threaded portions have a cross section of a trapezoidal shape with a load flank angle (α) of the threads in the range of 0 to -20 degrees and a stabbing flank angle (θ) thereof in the range of 35 to 50 degrees.
    • 提供了一种油井管用螺纹接头,能够保证连接效率足以实现在深井中的实用,其具有减小的接头外径,并且具有提高的抗弯曲性,抗压缩性和过扭矩阻力,足够 供侧轨技术使用。 它是油井管的一体式螺纹接头,其接头效率至少为70%,接头的外径大于油井管体的外径的至多1.08倍,螺纹 部分具有梯形的横截面,其具有在0至-20度范围内的螺纹的负载侧面角(α),并且在35至50度的范围内具有刺入侧角(θ)。
    • 9. 发明公开
    • TAPER THREADED JOINT
    • 锥形螺纹接头
    • EP1296088A1
    • 2003-03-26
    • EP01938549.1
    • 2001-06-07
    • SUMITOMO METAL INDUSTRIES, LTD.VALLOUREC MANNESMANN OIL & GAS FRANCE
    • MAEDA, JunNAGASAKU, ShigeoSUMITANI, Katsutoshi
    • F16L15/06
    • E21B17/042F16L15/001F16L15/06
    • The gap L (mm) which is the smaller of the gap L 1 (mm) between the crest 1a of a tapered male thread 1 and the root 2b of a tapered female thread 2, and the gap L 2 (mm) between the root 1c of the tapered male thread 1 and the crest 2c of the tapered female thread 2, the load flank angle α(°) and the stab flank angle β(°), and the axial gap δ(mm) which forms in the widthwise direction and is the difference between the thread ridge width of the tapered male thread 1 and the thread valley width of the tapered female thread 2 threadingly engaged therewith have the following relationship δ ≤ L·(tanα + tanβ)
      When interference of the threaded portions is necessary, the initial set thread interference H is H > 2L.
      As a result, a thread having sufficient resistance to tensile force and compressive force can be easily manufactured within manufacturing tolerances. In particular, it has good sealing properties and increased reliability as a threaded joint for an oil well pipe having a metal seal portion.
    • 作为锥形阳螺纹1的冠部1a与锥形阴螺纹2的根部2b之间的间隙L1(mm)与根部1c之间的间隙L2(mm)之间的间隙L(mm) 锥形内螺纹2的锥形外螺纹1和顶部2c,在宽度方向上形成的负载侧面角度α(°)和刺入侧面角度β(°)以及轴向间隙δ(mm) 锥形外螺纹1的螺纹牙宽度与螺纹啮合的锥形内螺纹2的螺纹牙宽度之间的差值具有以下关系δ≤L·(tanα+tanβ)当螺纹部分的干涉是必需的时,初始 设螺纹干涉H为H> 2L。 结果,可以在制造公差内容易地制造具有足够的抗张力和压缩力的螺纹。 特别是作为具有金属密封部的油井管的螺纹接头,具有良好的密封性和可靠性。