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公开(公告)号：EP1271037A1
公开(公告)日：2003-01-02
申请号：EP01917578.5
申请日：2001-03-29
IPC分类号： F16L15/06
CPC分类号： E21B17/042 , F16L15/06
摘要： 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.摘要翻译： 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）。
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公开(公告)号：EP2128506A1
公开(公告)日：2009-12-02
申请号：EP08720987.0
申请日：2008-02-28
发明人： KIMOTO, Masanari , GOTO, Kunio , TAKAHASHI, Masaru , FUKUI, Kunihiro , NAGASAKU, Shigeo , IMAI, Ryuichi , ONISHI, Shigeo , IKEGAMI, Hiroaki
IPC分类号： F16L15/04 , C10M101/02 , C10M103/02 , C10M159/06 , C10M159/24 , C23C26/00 , C25D3/58 , C25D5/12 , C25D7/00 , C25D7/04 , C10N10/04 , C10N30/06 , C10N40/00 , C10N50/08
CPC分类号： C23C28/00 , C10M111/04 , C10M169/042 , C10M2201/0413 , C10M2201/0423 , C10M2203/1006 , C10M2205/143 , C10M2205/163 , C10M2209/1003 , C10M2219/046 , C10N2240/22 , C10N2250/14 , C10N2250/18 , C23C28/021 , C23C28/023 , C23C30/00 , C25D5/10 , C25D5/12 , C25D5/36 , C25D7/10 , E21B17/042 , F16L15/001 , F16L15/08 , F16L58/182 , C10N2210/02
摘要： A pin-box type threaded joint for steel tubes having a contact surface (30) including a threaded portion and a nonthreaded metal-to-metal contact portion has improved leak resistance, galling resistance, and corrosion resistance particularly to crevice corrosion. The contact surface of at least one of the pin and the box is coated with a first plating layer (34) made of a Cu-Zn alloy or a Cu-Zn-M1 alloy (wherein M1 is at least one element selected from Sn, Bi, and In). Optionally, an undercoat (32) of one or both of a Ni plating layer (32a) and a Cu plating layer (32b) and an overcoat of a Sn-M2 alloy plating layer (36) (wherein M2 is one or more elements selected from Bi, In, Ni, Zn, and Cu) may be formed below and above the first layer, respectively. A solid lubricating coating (38a) and a viscous liquid or semisolid lubricating coating (38b) may also be formed atop the plating layer as a lubricating coating (38).
摘要翻译： 具有包括螺纹部分和非螺纹金属 - 金属接触部分的接触表面（30）的针管式螺纹接头具有改善的耐泄漏性，耐磨损性和耐腐蚀性，特别是缝隙腐蚀。 销和盒中至少一个的接触表面涂覆有由Cu-Zn合金或Cu-Zn-M1合金制成的第一镀层（34）（其中M1是选自Sn， Bi和In）。 可选地，Ni镀层（32a）和Cu镀层（32b）中的一个或两个的底涂层（32）和Sn-M2合金镀层（36）的外涂层（其中M2是选择的一种或多种元素 从Bi，In，Ni，Zn和Cu）可分别形成在第一层的下方和上方。 固体润滑涂层（38a）和粘性液体或半固体润滑涂层（38b）也可以形成在镀层的顶上作为润滑涂层（38）。
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公开(公告)号：EP1296088A1
公开(公告)日：2003-03-26
申请号：EP01938549.1
申请日：2001-06-07
IPC分类号： F16L15/06
CPC分类号： E21B17/042 , F16L15/001 , F16L15/06
摘要： 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.摘要翻译： 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。
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公开(公告)号：EP2064540A1
公开(公告)日：2009-06-03
申请号：EP07828371.0
申请日：2007-09-14
发明人： HOSHINO, Ikuji , YAMANO, Masaki , NAGASAKU, Shigeo
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.
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公开(公告)号：EP1310719B1
公开(公告)日：2005-05-11
申请号：EP01938561.6
申请日：2001-06-08
IPC分类号： F16L15/06
CPC分类号： F16L15/001 , F16L15/006
摘要： A pipe joint, comprising a shape having a stub side clearance (C) of 0.5-1.0 mm, a stub side thread angle ( theta ) of 15-60, the top and bottom faces of a thread positioned parallel with an axis, and a radius (R) at a male thread stub side corner of 1.0-1.25 mm, wherein a pin part having a tapered male screw formed in the end part outer peripheral surface of a tube is threaded with a box part having a tapered female screw threaded with the tapered male screw formed in the end part inner peripheral surface of the tube or a short tube, the taper of the incomplete thread part of the pin part being desirable to be 0.96-0.90 times the reference taper of the complete thread part.
摘要翻译： 1.一种管接头，其特征在于，具有短轴侧间隙（C）为0.5〜1.0mm，短轴侧线角θ为15°〜60°的形状，与轴平行的线的上下表面， 其特征在于，在管的端部外周面形成有具有锥形外螺纹的销部，在外螺纹的短轴方向上的外径半径（R）为1.0〜1.25mm， 锥形外螺纹形成在管的端部内周表面或短管中，销部分的不完全螺纹部分的锥度希望是整个螺纹部分的基准锥度的0.96-0.90倍。
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公开(公告)号：EP2196714A1
公开(公告)日：2010-06-16
申请号：EP08835808.0
申请日：2008-10-03
IPC分类号： F16L15/04
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 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，其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具有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，其中销和箱的外围表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具有与锥形密封表面13基本相同的倾斜角度的锥形表面部分18，以及 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：EP1920180A1
公开(公告)日：2008-05-14
申请号：EP06797658.9
申请日：2006-09-01
IPC分类号： F16L15/04 , C10M103/06 , C10M169/02 , C25D5/26 , C25D7/00 , C10N10/12 , C10N40/00 , C10N50/08 , C10N50/10
CPC分类号： C10M111/00 , C10M111/04 , C10M2201/0403 , C10M2201/0423 , C10M2201/0613 , C10M2201/0623 , C10M2201/0653 , C10M2201/0663 , C10M2201/1053 , C10M2203/1006 , C10M2207/0235 , C10M2207/2606 , C10M2207/2623 , C10M2207/2815 , C10M2209/1003 , C10M2213/0623 , C10M2217/0403 , C10M2217/0443 , C10M2219/0463 , C10M2229/003 , C10M2229/025 , C10N2210/02 , C10N2250/10 , C10N2250/18 , C10N2280/00 , C25D3/60 , C25D5/10 , C25D5/12 , C25D5/48 , C25D7/003 , F16L15/001 , Y10T428/12708 , C10N2210/03 , C10N2210/06
摘要： A threaded joint for steel pipes comprised of a pin 1 and a box 2 each having a threaded portion (1a, 2a) and an unthreaded metal contact portion (1b, 2b) exhibits adequate leakage resistance and galling resistance when used for makeup of oil country tubular goods with application of a green dope or even without any dope. The threaded joint has a first plating layer of Sn-Bi alloy plating or Sn-Bi-Cu alloy plating formed on the contact surface of at least one of the pin 1 and the box 2. The first plating layer may have a second plating layer selected from Sn plating, Cu plating, and Ni plating on its lower side and at least one layer of a lubricating coating, and particularly a solid lubricating coating, on its upper side.
摘要翻译： 由具有螺纹部分（1a，2a）和无螺纹金属接触部分（1b，2b）的销1和盒2构成的用于钢管的螺纹接头在用于油田化妆时表现出足够的耐泄漏性和抗磨损性 应用绿色涂料的管状物品，甚至不含任何涂料。 螺纹接头具有形成在销1和箱2中的至少一个的接触表面上的Sn-Bi合金镀层或Sn-Bi-Cu合金镀层的第一镀层。第一镀层可以具有第二镀层 在其下侧选自Sn镀层，Cu镀层和Ni镀层，并且在其上侧具有至少一层润滑涂层，特别是固体润滑涂层。
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公开(公告)号：EP1310719A1
公开(公告)日：2003-05-14
申请号：EP01938561.6
申请日：2001-06-08
IPC分类号： F16L15/06
CPC分类号： F16L15/001 , F16L15/006
摘要： A pipe joint formed by screwing a pin portion having a tapered male thread formed on the outer peripheral surface of the end of a pipe into a box portion having a tapered female thread formed on the inner peripheral surface of the end of a pipe or a short pipe so as to threadingly engage with the tapered male thread, the pipe joint having the following shape:
clearance C between thread stab flanks: 0.5 - 1.0 mm
thread stab flank angle θ: 15 - 60 degrees
thread crest surfaces and thread root surfaces: parallel to the pipe axis
radius R of stab flank corner portions of male thread: 1.0 - 1.25 mm
In addition, the taper of the incomplete thread portion of the pin portion is preferably 0.96 - 0.90 times the nominal taper of the complete thread portion.摘要翻译： 将在管端部的外周面上形成的具有锥形外螺纹的销部拧入形成在管端部的内周面上的具有锥形阴螺纹的箱部或短管 以便与锥形外螺纹螺纹啮合，该管接头具有以下形状：螺纹牙侧之间的间隙C：0.5-1.0mm螺纹牙侧角θ：15-60度螺纹牙顶表面和螺纹牙根表面：平行 与外螺纹的刺头牙侧角部的管轴半径R之比为1.0-1.25mm。此外，销部分的不完整螺纹部分的锥度优选为完整螺纹部分的标称锥度的0.96-0.90倍。
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公开(公告)号：EP2059704A1
公开(公告)日：2009-05-20
申请号：EP07807804.5
申请日：2007-09-13
CPC分类号： C10M169/041 , C10M2201/0653 , C10M2201/0663 , C10M2201/1033 , C10M2205/183 , C10M2209/006 , C10M2215/006 , C10N2230/06 , C10N2230/12 , C10N2240/408 , C10N2250/141 , C23C28/00 , C23C28/021 , C23C28/023 , E21B17/042 , F16L15/001 , F16L58/182
摘要： A threaded joint for steel pipes having excellent galling resistance, rust preventing properties, and airtightness without using a compound grease comprises a pin and a box each having a threaded portion and an unthreaded metal-to-metal contact portion serving as contact surfaces. The contact surfaces of at least one of the pin and the box are coated with a multi-layered structure comprising, from the bottom, a first layer formed from a first metal or alloy, a second layer formed from a second metal or alloy which is softer than the first metal or alloy, and an uppermost layer of a solid lubricating coating comprising a lubricating powder in an organic or inorganic binder.
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公开(公告)号：EP2059704B1
公开(公告)日：2013-07-10
申请号：EP07807804.5
申请日：2007-09-13
CPC分类号： C10M169/041 , C10M2201/0653 , C10M2201/0663 , C10M2201/1033 , C10M2205/183 , C10M2209/006 , C10M2215/006 , C10N2230/06 , C10N2230/12 , C10N2240/408 , C10N2250/141 , C23C28/00 , C23C28/021 , C23C28/023 , E21B17/042 , F16L15/001 , F16L58/182
摘要： A threaded joint for steel pipes having excellent galling resistance, rust preventing properties, and airtightness without using a compound grease comprises a pin and a box each having a threaded portion and an unthreaded metal-to-metal contact portion serving as contact surfaces. The contact surfaces of at least one of the pin and the box are coated with a multi-layered structure comprising, from the bottom, a first layer formed from a first metal or alloy, a second layer formed from a second metal or alloy which is softer than the first metal or alloy, and an uppermost layer of a solid lubricating coating comprising a lubricating powder in an organic or inorganic binder.
摘要翻译： 不使用复合润滑脂的耐磨损性，防锈性和气密性优异的钢管用螺纹接头，包括：销和盒，其具有螺纹部和无螺纹的金属对金属接触部，作为接触面。 销和箱中的至少一个的接触表面被涂覆有多层结构，其包括从底部开始由第一金属或合金形成的第一层，第二层由第二金属或合金形成，第二层由第二金属或合金 比第一金属或合金柔软，以及包含有机或无机粘合剂中的润滑粉末的固体润滑涂层的最上层。
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