公开(公告)号：US20160245433A1

公开(公告)日：2016-08-25

申请号：US14626297

申请日：2015-02-19

Applicant: ARCELORMITTAL TUBULAR PRODUCTS

Inventor： Merle E. EVANS

IPC: F16L15/00

CPC classification number: F16L15/00 ,  E21B17/042 ,  E21B17/08 ,  F16L2201/40

Abstract: A threaded connection includes a first tube having a pin, the pin having pin threads, a circumferential concave outer pin surface, and a pin torque shoulder at a free end, the concave outer pin surface including a pin seal surface and a continuous extension from the pin seal surface to the pin torque shoulder. A second tube has a box, the box has box threads for interacting with the pin threads, a circumferential inner box surface and a box torque shoulder. The inner box surface has a radially inwardly extending box seal surface, the pin seal surface contacts the box seal surface to define a seal. The seal is spaced from the free end when the pin and box torque shoulders contact, the continuous extension continuing from the seal to the pin torque shoulder. A method for making-up a threaded connection is also provided.

Abstract translation: 螺纹连接包括具有销的第一管，所述销具有销螺纹，周向凹形外销表面和在自由端处的销扭矩肩部，所述凹形外销表面包括销密封表面和从所述销密封表面的连续延伸 销密封面到销扭矩肩。 第二个管子有一个盒子，盒子里面有一个用于与销螺纹相互作用的盒子螺纹，一个圆周的内部箱子表面和一个箱子扭矩肩部。 内盒表面具有径向向内延伸的盒密封表面，销密封表面接触盒密封表面以限定密封。 当销和箱扭矩肩接触时，密封件与自由端间隔开，连续延伸从密封件延伸到销扭矩肩部。 还提供了一种用于组装螺纹连接的方法。

公开(公告)号：US20180259098A1

公开(公告)日：2018-09-13

申请号：US15974993

申请日：2018-05-09

Applicant: ARCELORMITTAL TUBULAR PRODUCTS LUXEMBOURG S.A.

Inventor： Merle E. EVANS ,  Jeroen Stijn Juliaan VAN WITTENBERGHE

IPC: F16L15/00 ,  E21B17/08 ,  E21B17/042

Abstract: A threaded connection includes a first tube having a pin, the pin having pin threads, a circumferential concave outer pin surface, and a pin torque shoulder at a free end, the concave outer pin surface including a pin seal surface and a continuous extension from the pin seal surface to the pin torque shoulder. A second tube has a box, the box has box threads for interacting with the pin threads, a circumferential inner box surface and a box torque shoulder. The inner box surface has a radially inwardly extending box seal surface, the pin seal surface contacts the box seal surface to define a seal. The seal is spaced from the free end when the pin and box torque shoulders contact, the continuous extension continuing from the seal to the pin torque shoulder. A method for making-up a threaded connection is also provided.