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1. 发明申请

US20100320754A1 REVERSE SLIDING SEAL FOR EXPANDABLE TUBULAR CONNECTIONS 审中-公开
标题翻译：反向滑动密封可扩展的管状连接
公开(公告)号：US20100320754A1
公开(公告)日：2010-12-23
申请号：US12855422
申请日：2010-08-12
申请人： Ghazi J. Hashem , Simon J. Harrall , Lev M. Ring , Merle E. Evans
发明人： Ghazi J. Hashem , Simon J. Harrall , Lev M. Ring , Merle E. Evans
IPC分类号： F16L25/00
CPC分类号： F16L15/003 , E21B43/106
摘要： An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. The invention utilizes a “groove” in a surface of the box member and a corresponding “rib” on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from the back of the box member. As the pin nose retracts, the rib on the pin nose moves backward until a portion of the rib contacts a portion of the groove in the box member. The point of contact between the rib and the groove creates a metal-to-metal seal between the pin and box members. Because the point of contact between the rib and the groove is a relatively small area, the force acting on the point of contact generates a high bearing pressure that is equal to or greater than the internal pressure within the expandable tubulars and, thus, generates a high pressure seal.
摘要翻译：公开了一种可扩展管状部分之间的可扩展螺纹连接，其在沿着销和箱构件的特定区域处提供高的轴承压力密封。本发明在箱体的表面中使用了一个“槽”，并在针鼻上使用了相应的“肋”。管的径向膨胀导致销的长度变短，从而使销头从箱构件的后部缩回。当销尖缩回时，销尖上的肋向后移动直到肋的一部分接触箱体中凹槽的一部分。肋和槽之间的接触点在销和箱构件之间产生金属对金属的密封。因为肋和槽之间的接触点是相对小的面积，所以作用在接触点上的力产生等于或大于可膨胀管内的内部压力的高承载压力，因此产生高压密封。

2. 发明授权

US07798536B2 Reverse sliding seal for expandable tubular connections 有权
标题翻译：用于可扩展管状连接的反向滑动密封
公开(公告)号：US07798536B2
公开(公告)日：2010-09-21
申请号：US11201499
申请日：2005-08-11
申请人： Ghazi J. Hashem , Simon J. Harrall , Lev M. Ring , Merle E. Evans
发明人： Ghazi J. Hashem , Simon J. Harrall , Lev M. Ring , Merle E. Evans
IPC分类号： F16L13/14
CPC分类号： F16L15/003 , E21B43/106
摘要： An expandable threaded connection between segments of expandable tubulars that provides a high bearing pressure seal at a specific area along the pin and box members is disclosed. The invention utilizes a “groove” in a surface of the box member and a corresponding “rib” on the pin nose. The radial expansion of the tubulars causes the pin to become shorter in length, thereby causing the pin nose to retract from the back of the box member. As the pin nose retracts, the rib on the pin nose moves backward until a portion of the rib contacts a portion of the groove in the box member. The point of contact between the rib and the groove creates a metal-to-metal seal between the pin and box members. Because the point of contact between the rib and the groove is a relatively small area, the force acting on the point of contact generates a high bearing pressure that is equal to or greater than the internal pressure within the expandable tubulars and, thus, generates a high pressure seal.
摘要翻译：公开了一种可扩展管状部分之间的可扩展螺纹连接，其在沿着销和箱构件的特定区域处提供高的轴承压力密封。本发明在箱体的表面中使用了一个“槽”，并在针鼻上使用了相应的“肋”。管的径向膨胀导致销的长度变短，从而使销头从箱构件的后部缩回。当销尖缩回时，销尖上的肋向后移动直到肋的一部分接触箱体中凹槽的一部分。肋和槽之间的接触点在销和箱构件之间产生金属对金属的密封。因为肋和槽之间的接触点是相对小的面积，所以作用在接触点上的力产生等于或大于可膨胀管内的内部压力的高承载压力，因此产生高压密封。

3. 发明授权

US07452007B2 Hybrid threaded connection for expandable tubulars 有权
标题翻译：用于可膨胀管的混合螺纹连接
公开(公告)号：US07452007B2
公开(公告)日：2008-11-18
申请号：US10885824
申请日：2004-07-07
申请人： Ghazi J. Hashem , Lev M. Ring , John R. Setterberg, Jr.
发明人： Ghazi J. Hashem , Lev M. Ring , John R. Setterberg, Jr.
IPC分类号： F16L25/00 , F16L35/00 , E21B17/00 , E21B23/00
CPC分类号： E21B43/106 , E21B43/103 , F16L15/003
摘要： An expandable threaded connection between segments of expandable tubulars. The present invention utilizes two complementary thread segments. The first segment of the threaded connection utilizes standard box and pin threads. In the second segment of the threaded connection, material is removed from the stab flank of the pin threads to reduce the standard width of the pin threads, while the box threads of the second segment are standard thread width. The use of the reduced thread width in the pin threads of the second segment allows for a loose fit between the pin threads of the second segment and the box threads of the second segment. The loose fit between the pin and box threads of the second segment allows radial and axial movement between those threads without causing disengagement of the threaded connection during the expansion process.
摘要翻译：可膨胀管段的可膨胀螺纹连接。本发明利用两个互补螺纹段。螺纹连接的第一段使用标准的盒和线螺纹。在螺纹连接的第二段中，材料从销螺纹的刀头侧面移除，以减小销螺纹的标准宽度，而第二段的箱形螺纹是标准螺纹宽度。在第二段的销螺纹中使用减小的螺纹宽度允许在第二段的销螺纹和第二段的箱螺纹之间松动地配合。第二段的销和箱螺纹之间的松配合允许在这些螺纹之间的径向和轴向运动，而不会在膨胀过程中导致螺纹连接脱离。

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