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    • 4. 发明公开
    • TUBULAR THREADED JOINT
    • ROHRFÖRMIGEGEWINDEVERBINDUNG
    • EP2002165A1
    • 2008-12-17
    • EP07740952.2
    • 2007-03-28
    • SUMITOMO METAL INDUSTRIES, LTD.VALLOUREC MANNESMANN OIL & GAS FRANCE
    • HAMAMOTO, TakahiroSUMITANI, KatsutoshiSUGINO, MasaakiIWAMOTO, MichihikoYAMAMOTO, MiyukiCHARVET-QUEMIN, Jean-FrançoisLE CHEVALIER, BenoîtVERGER, Eric
    • F16L15/04E21B17/042
    • E21B17/042F16L15/004F16L15/06
    • 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.
    • 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。
    • 5. 发明公开
    • JOINT FILETE TUBULAIRE AVEC BUTEE RENFORCEE
    • 联合FILTER TUBULAIRE AVEC BUTEE RENFORCEE
    • EP1295007A1
    • 2003-03-26
    • EP01947514.4
    • 2001-06-18
    • VALLOUREC MANNESMANN OIL & GAS FRANCESUMITOMO METAL INDUSTRIES, LTD.
    • SCHES, CélineSUGINO, MasaakiVARENNE, EmmanuelYAMAMOTO, Miyuki
    • E21B17/042F16L15/00
    • F16L15/004E21B17/042
    • 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.
    • 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。
    • 7. 发明授权
    • SCREW JOINT FOR OIL WELL PIPE
    • 油井管螺杆接头
    • EP0916883B1
    • 2006-06-28
    • EP97924279.9
    • 1997-05-30
    • SUMITOMO METAL INDUSTRIES, LTD.VALLOUREC MANNESMANN OIL & GAS FRANCE
    • SUGINO, MasaakiYAMAMOTO, Miyuki
    • F16L15/04
    • E21B17/042F16L15/004
    • 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.
    • 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。
    • 8. 发明公开
    • SCREW JOINT FOR OIL WELL PIPES AND METHOD OF MANUFACTURING SAME
    • 维多利亚·德·谢尔
    • EP0949441A1
    • 1999-10-13
    • EP97943176.4
    • 1997-10-08
    • SUMITOMO METAL INDUSTRIES, LTD.
    • YAMAMOTO, MiyukiSUGINO, Masaaki
    • F16L15/04
    • E21B17/042F16L15/00F16L15/004
    • A screw joint for oil well pipes, for preventing degradation in gastightness caused at the time of tension after axial compression, and a method of manufacturing the same. A screw joint for oil well pipes, formed with a seal portion and a torque shoulder portion, is such that a length (15) of a tip end of a thick-walled pin portion having an inner diameter determined by the formula (1) is not less than a length (16) extending to a position of the pin portion corresponding to the seal portion but not more than a half of a length (17) of the pin portion, an inner diameter of the remaining pin portion near a pipe body is equal to that of the pipe body, an inner diameter increases gradually from the thick-walled pin portion to the remaining pin portion, and an inner diameter of a box portion on the torque shoulder portion is equal to that of the tip end of the thick-walled pin portion in a state where the joint is fastened. Formula (1) is: do > dx ≥ d0 - , where dx (mm) designates a inner diameter of the thick-walled pin portion, and d0 (mm) designates an inner diameter of the pipe body.
    • 用于油井管的螺纹接头,用于防止在轴向压缩之后的张力时引起的气密性降低,及其制造方法。 用于形成有密封部分和扭矩肩部的油井管的螺纹接头使得具有由公式(1)确定的内径的厚壁销部分的顶端的长度(15)为 不小于延伸到对应于所述密封部分的所述销部分的位置但不大于所述销部分的长度(17)的一半的长度(16),所述剩余销部分在管体附近的内径 与管体相同,内径从厚壁销部分到剩余的销部分逐渐增加,扭矩台肩部分的箱部分的内径等于 在紧固接头的状态下的厚壁销部分。 公式(1)是:do>dx≥d0-,其中dx(mm)表示厚壁销部分的内径,d0(mm)表示管体的内径。