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1. 发明申请

WO2008035794A1 ULTRASONIC TESTING METHOD OF THREADED JOINT OF PIPES OR TUBES 审中-公开
标题翻译：管道或管道螺纹连接的超声波测试方法
公开(公告)号：WO2008035794A1
公开(公告)日：2008-03-27
申请号：PCT/JP2007/068592
申请日：2007-09-14
申请人： Sumitomo Metal Industries, Ltd., , VALLOUREC MANNESMANN OIL & GAS FRANCE , HOSHINO, Ikuji , YAMANO, Masaki , NAGASAKU, Shigeo
发明人： HOSHINO, Ikuji , YAMANO, Masaki , NAGASAKU, Shigeo
IPC分类号： G01N29/04 , F16L15/04
CPC分类号： F16L15/04 , F16L15/004 , G01N29/07 , G01N29/11 , G01N29/262 , G01N29/265 , G01N2291/044 , G01N2291/2675
摘要： 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.
摘要翻译：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。

2. 发明申请

WO2008029957A1 METHOD FOR EVALUATING FASTENING STATE OF THREADED JOINT OF PIPES OR TUBES AND METHOD FOR FASTENING THREADED JOINT OF PIPES OR TUBES USING THE METHOD 审中-公开
标题翻译：用于评估管道或管道的螺纹连接状态的方法和使用该方法来密封管道或管道的螺纹连接的方法
公开(公告)号：WO2008029957A1
公开(公告)日：2008-03-13
申请号：PCT/JP2007/067892
申请日：2007-09-06
申请人： Sumitomo Metal Industries, Ltd. , VALLOUREC MANNESMANN OIL & GAS FRANCE , HOSHINO, Ikuji , YAMANO, Masaki , NAGASAKU, Shigeo
发明人： HOSHINO, Ikuji , YAMANO, Masaki , NAGASAKU, Shigeo
IPC分类号： G01N29/04 , F16L15/04
CPC分类号： F16L15/004 , G01N29/11 , G01N29/265 , G01N29/4409 , G01N2291/015 , G01N2291/02827 , G01N2291/044 , G01N2291/101 , G01N2291/2691
摘要： There is provided a method capable of evaluating a fastening state of a threaded joint that is used as a joint of pipes or tubes such as OCTG with a high degree of accuracy even after being fastened and a method for fastening a threaded joint of pipes or tubes using the evaluating method. The present invention provides a method for evaluating a fastening state 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. The evaluating method according to the present invention is characterized by transmitting and receiving an ultrasonic wave 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 for the plurality of locations; and comparing the echo intensities detected for the plurality of locations to determine whether the fastening state of the threaded joint is good or bad.
摘要翻译：提供了一种即使在紧固之后也能够高精度地评价用作OCTG等管子或管的接头的螺纹接头的紧固状态的方法，以及用于紧固管道或管的螺纹接头的方法使用评估方法。本发明提供一种评价包括具有在外周面上具有外螺纹部分，金属密封部分和肩部的销的管或管的紧固状态的方法，以及具有内螺纹部分，金属密封部分和与销的每个部分对应的胎肩部分，并且与销钉紧固。根据本发明的评估方法的特征在于，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强度; 以及比较检测到的多个位置的回波强度，以确定螺纹接头的紧固状态是好是坏。

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