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公开(公告)号：US20100078936A1
公开(公告)日：2010-04-01
申请号：US12571642
申请日：2009-10-01
CPC分类号： F16L15/004 , E21B17/042 , F16L15/06
摘要： A threaded joint for steel pipes constituted by a pin having male threads and a box having female threads is improved with respect to ease of insertion of the pin and galling resistance of the threaded portions. The stabbing flanks of the threads in a complete thread portion of one of the pin and a box has a two-step stabbing shape having a chamfer. The two-step stabbing shape has a stabbing flank angle α of 5-45° and a chamfer angle β of 20-60°. The ratio h/H of the chamfer height h to the thread height H of the pin is 0.25-0.50, or the ratio of the cross-sectional area of the chamfered portion to the overall cross-sectional area of the stabbing flank is made at least a value corresponding to a chamfer height ratio h/H of 0.25 and at most a value corresponding to a chamfer height ratio of 0.50.
摘要翻译： 由具有阳螺纹的销和具有内螺纹的箱构成的钢管用螺纹接头在销的插入容易性和螺纹部的耐磨损性方面得到改善。 销和盒中的一个的完整螺纹部分中的螺纹的刺入侧面具有具有倒角的两步骤刺入形状。 两步刺刺形状具有5-45°的刺刀侧角α和倒角角度＆bgr; 20-60°。 倒角高度h与销钉螺纹高度H的比值h / H为0.25-0.50，或者倒角部分的横截面积与刺刀侧面的整个横截面积的比例为 至少对应于斜面高度比h / H为0.25的值，并且最多为对应于倒角高度比为0.50的值。
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公开(公告)号：US07900975B2
公开(公告)日：2011-03-08
申请号：US12571642
申请日：2009-10-01
IPC分类号： F16L35/00
CPC分类号： F16L15/004 , E21B17/042 , F16L15/06
摘要： A threaded joint for steel pipes constituted by a pin having male threads and a box having female threads is improved with respect to ease of insertion of the pin and galling resistance of the threaded portions. The stabbing flanks of the threads in a complete thread portion of one of the pin and a box has a two-step stabbing shape having a chamfer. The two-step stabbing shape has a stabbing flank angle α of 5-45° and a chamfer angle β of 20-60°. The ratio h/H of the chamfer height h to the thread height H of the pin is 0.25-0.50, or the ratio of the cross-sectional area of the chamfered portion to the overall cross-sectional area of the stabbing flank is made at least a value corresponding to a chamfer height ratio h/H of 0.25 and at most a value corresponding to a chamfer height ratio of 0.50.
摘要翻译： 由具有阳螺纹的销和具有内螺纹的箱构成的钢管用螺纹接头在销的插入容易性和螺纹部的耐磨损性方面得到改善。 销和盒中的一个的完整螺纹部分中的螺纹的刺入侧面具有具有倒角的两步骤刺入形状。 两步刺刺形状具有5-45°的刺刀侧角α和倒角角度＆bgr; 20-60°。 倒角高度h与销钉螺纹高度H的比值h / H为0.25-0.50，或者倒角部分的横截面积与刺刀侧面的整个横截面积的比例为 至少对应于斜面高度比h / H为0.25的值，并且最多为对应于倒角高度比为0.50的值。
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公开(公告)号：US08038179B2
公开(公告)日：2011-10-18
申请号：US12748562
申请日：2010-03-29
IPC分类号： F16L15/00
CPC分类号： F16L15/00 , E21B17/042 , F16L15/004
摘要： A threaded joint for steel pipes comprising a pin 1 having a tapered male thread 11, a tapered sealing surface 13, and an end shoulder surface 14 and a box 2 having correspondingly a tapered female thread 21, a tapered sealing surface 23, and a shoulder surface 24 which is capable of easy tightening and has improved air tightness by the sealing surfaces is arranged such that the pin and the box each have a noncontacting region B where the peripheral surfaces of the pin and the box do not contact each other between the sealing surfaces 13, 23 and the shoulder surfaces 14 and 24. At least a portion of the noncontacting region of the pin adjoining the to end of the pin is a tapered surface portion 18 having substantially the same angle of slope as the tapered sealing surface 13, and the noncontacting region of the box is a substantially cylindrical surface.
摘要翻译： 一种用于钢管的螺纹接头，包括具有锥形外螺纹11的销1，锥形密封表面13和端部肩部表面14以及具有锥形阴螺纹21的锥形密封表面23和肩部 能够容易地紧固并且通过密封表面改善的气密性的表面24被布置成使得销和箱各自具有非接触区域B，其中销和箱的周面在密封件之间不彼此接触 表面13,23和肩部表面14和24.与销的端部相邻的销的非接触区域的至少一部分是锥形表面部分18，其具有与锥形密封表面13基本相同的倾斜角度， 并且盒的非接触区域是基本上圆柱形的表面。
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公开(公告)号：US20100270793A1
公开(公告)日：2010-10-28
申请号：US12748562
申请日：2010-03-29
IPC分类号： F16L25/00
CPC分类号： F16L15/00 , E21B17/042 , F16L15/004
摘要： A threaded joint for steel pipes comprising a pin 1 having a tapered male thread 11, a tapered sealing surface 13, and an end shoulder surface 14 and a box 2 having correspondingly a tapered female thread 21, a tapered sealing surface 23, and a shoulder surface 24 which is capable of easy tightening and has improved air tightness by the sealing surfaces is arranged such that the pin and the box each have a noncontacting region B where the peripheral surfaces of the pin and the box do not contact each other between the sealing surfaces 13, 23 and the shoulder surfaces 14 and 24. At least a portion of the noncontacting region of the pin adjoining the to end of the pin is a tapered surface portion 18 having substantially the same angle of slope as the tapered sealing surface 13, and the noncontacting region of the box is a substantially cylindrical surface.
摘要翻译： 一种用于钢管的螺纹接头，包括具有锥形外螺纹11的销1，锥形密封表面13和端部肩部表面14以及具有锥形阴螺纹21的锥形密封表面23和肩部 能够容易地紧固并且通过密封表面改善的气密性的表面24被布置成使得销和箱各自具有非接触区域B，其中销和箱的周面在密封件之间不彼此接触 表面13,23和肩部表面14和24.与销的端部相邻的销的非接触区域的至少一部分是锥形表面部分18，其具有与锥形密封表面13基本相同的倾斜角度， 并且盒的非接触区域是基本上圆柱形的表面。
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公开(公告)号：US20080265575A1
公开(公告)日：2008-10-30
申请号：US11997920
申请日：2006-07-21
IPC分类号： F16L15/04
CPC分类号： F16L15/004 , E21B17/042
摘要： A liquid and gas tight threaded tubular connection. A first axial abutment surface formed at the free end of an annular lip of a threaded male element and a second axial abutment surface formed at the end of a housing of a threaded female element have same axial half-sections, the inclination of which varies progressively in the radial direction. Such a configuration of the axial abutment surfaces optimizes radial thrust exerted on the end of the lip depending on its thickness, to obtain an increased radial interference between the respective sealing surfaces of both elements. Such a connection may find application to hydrocarbon wells, for example.
摘要翻译： 液体和气密螺纹管状连接。 形成在螺纹阴型元件的环形唇缘的自由端处的第一轴向邻接表面和形成在螺纹阴元件的壳体的端部处的第二轴向邻接表面具有相同的轴向半部分，其倾斜逐渐变化 在径向方向。 这种轴向邻接表面的构造优化了根据其厚度施加在唇缘端部上的径向推力，以获得两个元件的相应密封表面之间增加的径向干涉。 这样的连接例如可以应用于烃井。
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公开(公告)号：US20090200798A1
公开(公告)日：2009-08-13
申请号：US12232362
申请日：2008-09-16
申请人： Takahiro Hamamoto , Katsutoshi Sumitani , Masaaki Sugino , Michihiko Iwamoto , Miyuki Yamamoto , Jean-Francois Charvet-Quemin , Benoit Le Chevalier , Eric Verger
发明人： Takahiro Hamamoto , Katsutoshi Sumitani , Masaaki Sugino , Michihiko Iwamoto , Miyuki Yamamoto , Jean-Francois Charvet-Quemin , Benoit Le Chevalier , Eric Verger
IPC分类号： F16L15/04
CPC分类号： E21B17/042 , F16L15/004 , F16L15/06
摘要： A tubular threaded joint which has excellent resistance to compression and which permits easy tightening operation in the field in a vertical state comprises a pin having a male threaded zone and a box having a female threaded zone. The pin or the box has an end shoulder surface on its end, and the other member has a shoulder surface which abuts against the end shoulder surface. The screw threads of the male threaded zone and the female threaded zone are trapezoidal threads having a crest, a load flank, and a stabbing flank. The lip length, which is the distance in the axial direction of a member having an end shoulder surface between the end shoulder surface and the closest engaged thread to that surface, is at least 140 times the stabbing flank clearance, which is the distance in the axial direction between the stabbing flanks of the male thread and the female thread when the load flanks of the male and female threads contact each other. The stabbing flank of the male thread is preferably chamfered.
摘要翻译： 具有优异的抗压缩性并且允许在垂直状态下在现场容易的紧固操作的管状螺纹接头包括具有阳螺纹区域和具有内螺纹区域的箱体的销。 销或箱的端部具有端部肩部表面，另一个部件具有抵靠端部肩部表面的肩部表面。 阳螺纹区域和阴螺纹区域的螺纹是梯形螺纹，具有顶部，负载侧面和刺入侧面。 唇部长度，即在端肩表面和与该表面最接近的接合螺纹之间具有端部肩部表面的构件的轴向方向上的距离，至少为刺穿侧面间隙的140倍，即， 阳螺纹和阴螺纹的负荷侧面彼此接触时，外螺纹的刺入侧面和内螺纹之间的轴向方向。 外螺纹的刺伤侧面优选地被倒角。
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公开(公告)号：US08287008B2
公开(公告)日：2012-10-16
申请号：US11997920
申请日：2006-07-21
IPC分类号： F16L15/00
CPC分类号： F16L15/004 , E21B17/042
摘要： A liquid and gas tight threaded tubular connection includes a first axial abutment surface formed at the free end of an annular lip of a threaded male element and a second axial abutment surface formed at the end of a housing of a threaded female element. The first and second axial abutment surfaces have the same axial half-sections, the inclination of which varies progressively in the radial direction.
摘要翻译： 液体和气密螺纹管状连接包括形成在螺纹阳元件的环形唇缘的自由端处的第一轴向邻接表面和形成在螺纹阴元件的壳体的端部处的第二轴向邻接表面。 第一和第二轴向邻接表面具有相同的轴向半部分，其倾斜度在径向上逐渐变化。
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公开(公告)号：US07823931B2
公开(公告)日：2010-11-02
申请号：US12232362
申请日：2008-09-16
申请人： Takahiro Hamamoto , Katsutoshi Sumitani , Masaaki Sugino , Michihiko Iwamoto , Miyuki Yamamoto , Jean-Francois Charvet-Quemin , Benoit Le Chevalier , Eric Verger
发明人： Takahiro Hamamoto , Katsutoshi Sumitani , Masaaki Sugino , Michihiko Iwamoto , Miyuki Yamamoto , Jean-Francois Charvet-Quemin , Benoit Le Chevalier , Eric Verger
IPC分类号： F16L25/00
CPC分类号： E21B17/042 , F16L15/004 , F16L15/06
摘要： A tubular threaded joint which has excellent resistance to compression and which permits easy tightening operation in the field in a vertical state comprises a pin having a male threaded zone and a box having a female threaded zone. The pin or the box has an end shoulder surface on its end, and the other member has a shoulder surface which abuts against the end shoulder surface. The screw threads of the male threaded zone and the female threaded zone are trapezoidal threads having a crest, a load flank, and a stabbing flank. The lip length, which is the distance in the axial direction of a member having an end shoulder surface between the end shoulder surface and the closest engaged thread to that surface, is at least 140 times the stabbing flank clearance, which is the distance in the axial direction between the stabbing flanks of the male thread and the female thread when the load flanks of the male and female threads contact each other. The stabbing flank of the male thread is preferably chamfered.
摘要翻译： 具有优异的抗压缩性并且允许在垂直状态下在现场容易的紧固操作的管状螺纹接头包括具有阳螺纹区域和具有内螺纹区域的箱体的销。 销或箱的端部具有端部肩部表面，另一个部件具有抵靠端部肩部表面的肩部表面。 阳螺纹区域和阴螺纹区域的螺纹是梯形螺纹，具有顶部，负载侧面和刺入侧面。 唇部长度，即在端肩表面和与该表面最接近的接合螺纹之间具有端部肩部表面的构件的轴向方向上的距离，至少为刺穿侧面间隙的140倍，即， 当阳螺纹和阴螺纹的负载侧面彼此接触时，外螺纹的刺入侧面和内螺纹之间的轴向方向。 外螺纹的刺伤侧面优选地被倒角。
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