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公开(公告)号：EP2210030A1
公开(公告)日：2010-07-28
申请号：EP08846414.4
申请日：2008-10-17
发明人： YAMAGUCHI, Suguru , NAKAMURA, Keiichi , SUGINO, Masaaki , IWAMOTO, Michihiko , BRIQUET, Gabriel , PATUREAU, Claire , DALY, Daly , MAILLON, Bertrand , BEIGNEUX, Sylvain
IPC分类号： F16L15/00
CPC分类号： F16L15/004 , E21B17/042 , E21B17/08 , F16L15/06
摘要： A threaded joint for steel pipes comprising a pin (1) and a box (2). The pin has a male thread (11) and a lip (12) which comprises (i) a sealing surface (13) and (ii) a nose portion (16) provided with a shoulder surface. The box has a female thread (21), a sealing surface (23) and a shoulder surface. The shoulder surface of the pin comprises two distinct adjacent surfaces, main shoulder (14) in the inner side and sub shoulder (15) in the outer side. Correspondingly, the shoulder surface of the box comprises two distinct adjacent surfaces, main shoulder (24) in the inner side and sub shoulder (25) in the outer side. The main shoulder surfaces of the pin and box are disposed such as to prevent a radially inward deformation of the lip end, and the sub shoulder surfaces of pin and box are disposed such as to limit a radially outward deformation of the lip end. The main shoulder of the pin has a greater radial dimension than said sub shoulder of the pin, and at least the main shoulder surface of the pin is in axial abutment with at least the corresponding main shoulder surface of the box.
摘要翻译： 一种用于钢管的螺纹接头，包括销（1）和箱体（2）。 销具有外螺纹（11）和唇缘（12），该唇缘包括（i）密封表面（13）和（ii）设有肩部表面的鼻部（16）。 盒具有阴螺纹（21），密封表面（23）和肩部表面。 销的肩部表面包括两个不同的相邻表面，内侧的主肩部（14）和外侧的副肩部（15）。 相应地，盒子的肩部表面包括两个不同的相邻表面，内侧的主肩部（24）和外侧的副肩部（25）。 销和盒的主肩面被设置成防止唇端的径向向内变形，并且销和盒的副肩面被设置成限制唇端的径向向外变形。 销的主肩部具有比销的所述副肩部更大的径向尺寸，并且销的至少主肩部表面与箱体的至少对应的主肩部表面轴向邻接。
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公开(公告)号：EP2002165A1
公开(公告)日：2008-12-17
申请号：EP07740952.2
申请日：2007-03-28
发明人： HAMAMOTO, Takahiro , SUMITANI, Katsutoshi , SUGINO, Masaaki , IWAMOTO, Michihiko , YAMAMOTO, Miyuki , CHARVET-QUEMIN, Jean-François , LE CHEVALIER, Benoît , VERGER, Eric
IPC分类号： F16L15/04 , E21B17/042
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： 具有优异的耐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阴螺纹区域的箱体的销。 销或盒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。 阳螺纹区域和内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。 唇缘长度是在端部肩部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部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是倒角的。
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公开(公告)号：EP1295007A1
公开(公告)日：2003-03-26
申请号：EP01947514.4
申请日：2001-06-18
IPC分类号： E21B17/042 , F16L15/00
CPC分类号： F16L15/004 , E21B17/042
摘要： The invention concerns a male threaded joint (1) tipped with a male lip (18)having a male seating face (13) and a male stop (14) transverse surface (16) proximate to the male seating face; and a female threaded element (21) comprising, for co-operation with the corresponding means of the male threaded element a female seating face (23) and a female stop transverse surface provided on a female shoulder and proximate to the female seating face. The annular female shoulder zone (24) which is subjected to axial compression forces resulting from the pressure of the male (16) and female (26) stop surfaces have an inner peripheral surface (27) whereof the diameter (IDB) is at least locally proximate to said female stop surface (26) smaller than the diameter (IDP) of the inner peripheral surface (17) of the male lip (18), the ratio R of said two diameters (IDB/IDP) being less than 1 but not less than 0.9.
摘要翻译： 本发明涉及一种具有凸形唇缘（18）的阳螺纹接头（1），所述凸形唇缘（18）具有靠近所述阳形座面的阳性座面（13）和阳性挡块（14）的横向表面（16） 和内螺纹元件（21），为了与阳螺纹元件的相应装置协作，阴螺纹元件（21）包括设置在女性肩部上并靠近女性座位面的阴性座面（23）和阴性止动横向表面。 承受由凸形（16）和凹形（26）止动表面的压力产生的轴向压缩力的环形凹肩区（24）具有内径表面（27），其内径（IDB）至少局部地 所述两个直径（IDB / IDP）的比R小于所述母止动表面（26）的直径（IDP）小于1， 小于0.9。
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公开(公告)号：EP2129952A1
公开(公告)日：2009-12-09
申请号：EP08740067.7
申请日：2008-04-02
IPC分类号： F16L15/04
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 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： 由销的插入容易性和螺纹部的耐擦伤性提高了由具有阳螺纹的销和具有阴螺纹的箱构成的钢管用螺纹接头。 在销和盒之一的完整螺纹部分中的螺纹的插入侧面具有具有倒角的两步插入形状。 两级插入形状的插入侧面角α为5 - 45°，倒角角β为20 - 60°。 倒角高度h与销的螺纹高度H之比h / H为0.25-0.50，或者倒角部分的横截面面积与插入侧面的总横截面面积之比为 至少对应于倒角高度比h / H的值为0.25，并且至多对应于倒角高度比为0.50的值。
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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：EP1913297B1
公开(公告)日：2009-05-06
申请号：EP06776354.0
申请日：2006-07-21
IPC分类号： F16L15/04
CPC分类号： F16L15/004 , E21B17/042
摘要： A first axial abutment surface (6) formed at the free end of an annular lip (5) of a threaded male element (1) and a second axial abutment surface (9) formed at the end of a housing (7) of a threaded female element (2) have a same axial half-sections (S) the inclination of which varies progressively in the radial direction. Such a configuration of the axial abutment surfaces optimizes the radial thrust exerted on the end of the lip depending on its thickness, in order to obtain an increased radial interference between the respective sealing surfaces (10, 12) of both elements. Application to hydrocarbon wells.
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公开(公告)号：EP1913297A1
公开(公告)日：2008-04-23
申请号：EP06776354.0
申请日：2006-07-21
IPC分类号： F16L15/04
CPC分类号： F16L15/004 , E21B17/042
摘要： A first axial abutment surface (6) formed at the free end of an annular lip (5) of a threaded male element (1) and a second axial abutment surface (9) formed at the end of a housing (7) of a threaded female element (2) have a same axial half-sections (S) the inclination of which varies progressively in the radial direction. Such a configuration of the axial abutment surfaces optimizes the radial thrust exerted on the end of the lip depending on its thickness, in order to obtain an increased radial interference between the respective sealing surfaces (10, 12) of both elements. Application to hydrocarbon wells.
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公开(公告)号：EP1295007B1
公开(公告)日：2007-05-30
申请号：EP01947514.4
申请日：2001-06-18
IPC分类号： E21B17/042 , F16L15/00
CPC分类号： F16L15/004 , E21B17/042
摘要： The invention concerns a male threaded joint (1) tipped with a male lip (18)having a male seating face (13) and a male stop (14) transverse surface (16) proximate to the male seating face; and a female threaded element (21) comprising, for co-operation with the corresponding means of the male threaded element a female seating face (23) and a female stop transverse surface provided on a female shoulder and proximate to the female seating face. The annular female shoulder zone (24) which is subjected to axial compression forces resulting from the pressure of the male (16) and female (26) stop surfaces have an inner peripheral surface (27) whereof the diameter (IDB) is at least locally proximate to said female stop surface (26) smaller than the diameter (IDP) of the inner peripheral surface (17) of the male lip (18), the ratio R of said two diameters (IDB/IDP) being less than 1 but not less than 0.9.
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公开(公告)号：EP0916883B1
公开(公告)日：2006-06-28
申请号：EP97924279.9
申请日：1997-05-30
发明人： SUGINO, Masaaki , YAMAMOTO, Miyuki
IPC分类号： F16L15/04
CPC分类号： E21B17/042 , F16L15/004
摘要： A screw joint for an oil well pipe is equipped with either one, or both, of an inner surface shoulder portion and an outer surface shoulder portion comprising a seal portion and a torque shoulder portion, and satisfies further the following conditions 1 and 2: 1) effective diameter of seal formation surface before fastening is greater on the pin side than on the box side; and 2) inclination of torque shoulder formation surface is smaller on the pin side than on the box side, and difference DELTA theta of the inclinations is at least 0.5 DEG and not greater than 4.0 DEG . The screw joint for the oil well pipe of this invention is excellent in gas sealability and clearance corrosion resistance. The production cost is equal to that of conventional screw joints, and handling is easy, too. This screw joint is extremely suitable for probing and mining of burried matters at a depth and at a higher pressure and burried matters containing high corrosive impurities such as gases and crude oils.
摘要翻译： 一种用于油井管的螺旋接头配备有包括密封部分和扭矩肩部的内表面肩部部分和外表面肩部部分中的一个或两个，并且进一步满足以下条件1和2：1 ）紧固前密封形成表面的有效直径在销侧大于在盒侧; 2）销侧的扭矩台肩形成面的倾斜度比箱侧的倾斜度小，倾斜的差Δθ为0.5°以上且4.0°以下。 本发明的油井管用螺纹接头具有优异的气密性和耐间隙腐蚀性。 生产成本与传统螺纹接头相同，操作也很容易。 这种螺旋接头非常适用于在深度和高压下探测和开采被埋藏物质，以及含有高度腐蚀性杂质如气体和原油的埋藏物质。
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公开(公告)号：EP2337982A1
公开(公告)日：2011-06-29
申请号：EP09822102.1
申请日：2009-10-20
IPC分类号： F16L15/04
CPC分类号： F16L15/004 , E21B17/042
摘要： In a threaded joint for steel pipes comprising a pin (1) and a box (2), each having a threaded portion (11 or 21), a sealing surface (13 or 23), and a shoulder surface (14, 15 or 24, 25), the sealing surface (13) of the pin (1) is formed by a tapered surface, and the sealing surface (23) of the box (2) is formed by a first curved surface portion with a large radius of curvature in the range of 15-120 mm, a tapered surface portion, and a second curved surface portion with a large radius of curvature again in the range of 15-120 mm.
摘要翻译： 在包括销（1）和盒子（2）的用于钢管的螺纹接头中，每个螺纹接头具有螺纹部分（11或21），密封表面（13或23）以及肩表面（14,15或24） ，25）中，销（1）的密封表面（13）由锥形表面形成，并且盒（2）的密封表面（23）由具有大曲率半径的第一曲面部分 在15-120mm的范围内，锥形表面部分和具有大的曲率半径的第二曲面部分再次在15-120mm的范围内。
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