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1. 发明公开

EP0309078A3 Method of apparatus for expanding and sealing a sleeve into a surrounding tube 失效
标题翻译：用于将套管膨胀并密封到环绕管中的装置的方法
公开(公告)号：EP0309078A3
公开(公告)日：1990-10-24
申请号：EP88306743.1
申请日：1988-07-22
申请人： FOSTER WHEELER ENERGY CORPORATION
发明人： Rabe, George B. , Johnson, Robert Harold
IPC分类号： B21D39/06 , B21D39/20
CPC分类号： B21D39/04 , B21D39/06 , B21D39/20 , B21D39/203 , B21D39/206
摘要： A method and apparatus for locating a sleeve within a surrounding tube and pressure-tightly sealing the sleeve within the tube to repair leaks in the tube. The sealing method utilizes dual elongated pressurizable tools. The first tool device includes a housing having a reduced-diameter forward extension portion attached to a front cylinder, and containing a rear piston. The front cylinder, is attached to a collet having multiple radially expandable fingers and contains a front piston attached to a tapered mandrel which is axially movable within the fingers, and has a forward tapered nose portion to facilitate inserting the tool into a tube. The rear piston is attached to the front piston by an elongated rod. By pressurizing the tool front piston by a hydraulic fluid pressurizing unit, the mandrel is forced forward through the collet fingers to expand the fingers against the sleeve and thereby expand the sleeve tightly into the tube to form the seal joint. After withdrawing the tool from the tube, the tool rear piston is similarly pressurized to retract the front piston and attached mandrel back through the collet expandable fingers to reset the tool prior to its further use. The second tool includes a housing containing an axially movable piston and a forward reduced diameter portion and having an elastic expander unit for inserting into the sleeve and tube in a tubesheet. The expander unit consists of at least two elastic rings composed of an elastomer material and each having a chamfer provided at the outer edge of the unit forward and rear faces. By pressurizing a port at the housing front end, the piston is moved rearwardly to axially compress and expand the expander rings radially outwardly sufficiently to expand the sleeve firmly into the tube and provide a pressure-tight seal therebetween. Following such expansion of the sleeve, the piston is pressurized and moved forward to release the compression on the expander unit rings, so that the tool can be easily withdrawn from the expanded sleeve and tube and inserted into another sleeve and tube for repeated usage.

2. 发明公开

EP0516179A3 Apparatus for expanding and sealing a sleeve into a surrounding tube 失效
标题翻译：用于将套管膨胀并密封到环绕管中的装置的方法
公开(公告)号：EP0516179A3
公开(公告)日：1993-04-07
申请号：EP92111095.3
申请日：1988-07-22
申请人： FOSTER WHEELER ENERGY CORPORATION
发明人： Rabe, George B. , Johnson, Robert Harold
IPC分类号： B21D39/20 , B21D39/08 , B21D39/04 , B23P19/02
CPC分类号： B21D39/04 , B21D39/06 , B21D39/20 , B21D39/203 , B21D39/206
摘要： A pressurizable tool for locating a sleeve within a surrounding tube and pressure-tightly sealing the sleeve within the tube to repair leaks in the tube. The tool includes a housing containing an axially movable piston and a forward reduced diameter portion and having an elastic expander unit for inserting into the sleeve and tube in a tubesheet. The expander unit consists of at least two elastic rings composed of an elastomer material and each having a chamfer provided at the outer edge of the unit forward and rear faces. By pressurizing a port at the housing front end, the piston is moved rearwardly to axially compress and expand the expander rings radially outwardly sufficiently to expand the sleeve firmly into the tube and provide a pressure-tight seal therebetween. Following such expansion of the sleeve, the piston is pressurized and moved forward to release the compression on the expander unit rings, so that the tool can be easily withdrawn from the expanded sleeve and tube and inserted into another sleeve and tube for repeated usage.

3. 发明公开

EP0309078A2 Method of apparatus for expanding and sealing a sleeve into a surrounding tube 失效
标题翻译： Verfahren und Vorrichtung zum Ausdehnen und Abdichten einer Muffe in einem Rohr。
公开(公告)号：EP0309078A2
公开(公告)日：1989-03-29
申请号：EP88306743.1
申请日：1988-07-22
申请人： FOSTER WHEELER ENERGY CORPORATION
发明人： Rabe, George B. , Johnson, Robert Harold
IPC分类号： B21D39/06 , B21D39/20
CPC分类号： B21D39/04 , B21D39/06 , B21D39/20 , B21D39/203 , B21D39/206
摘要： A method and apparatus for locating a sleeve within a surrounding tube and pressure-tightly sealing the sleeve within the tube to repair leaks in the tube. The sealing method utilizes dual elongated pressurizable tools. The first tool device includes a housing having a reduced-diameter forward extension portion attached to a front cylinder, and containing a rear piston. The front cylinder, is attached to a collet having multiple radially expandable fingers and contains a front piston attached to a tapered mandrel which is axially movable within the fingers, and has a forward tapered nose portion to facilitate inserting the tool into a tube. The rear piston is attached to the front piston by an elongated rod. By pressurizing the tool front piston by a hydraulic fluid pressurizing unit, the mandrel is forced forward through the collet fingers to expand the fingers against the sleeve and thereby expand the sleeve tightly into the tube to form the seal joint. After withdrawing the tool from the tube, the tool rear piston is similarly pressurized to retract the front piston and attached mandrel back through the collet expandable fingers to reset the tool prior to its further use. The second tool includes a housing containing an axially movable piston and a forward reduced diameter portion and having an elastic expander unit for inserting into the sleeve and tube in a tubesheet. The expander unit consists of at least two elastic rings composed of an elastomer material and each having a chamfer provided at the outer edge of the unit forward and rear faces. By pressurizing a port at the housing front end, the piston is moved rearwardly to axially compress and expand the expander rings radially outwardly sufficiently to expand the sleeve firmly into the tube and provide a pressure-tight seal therebetween. Following such expansion of the sleeve, the piston is pressurized and moved forward to release the compression on the expander unit rings, so that the tool can be easily withdrawn from the expanded sleeve and tube and inserted into another sleeve and tube for repeated usage.
摘要翻译：一种用于将套管定位在周围管内的方法和装置，并且将管中的套筒压紧地密封以修复管中的泄漏。密封方法采用双伸长可加压工具。第一工具装置包括壳体，该壳体具有连接到前缸的缩径的前延伸部分并且容纳后活塞。前筒连接到具有多个可径向扩张的指状物的夹头，并且包含附接到锥形心轴的前活塞，所述锥形心轴可在指状物内轴向移动，并且具有向前锥形的鼻部以便于将工具插入管中。后活塞通过细长的杆附接到前活塞。通过用液压流体加压装置对工具前活塞进行加压，心轴向前通过夹爪，将手指伸展到套筒上，从而将套筒紧紧地放入管中以形成密封接头。在从管中取出工具之后，工具后活塞被类似地加压，以使前活塞和连接的心轴回缩通过夹头可伸缩手指，以在其进一步使用之前复位该工具。第二工具包括容纳可轴向移动的活塞和向前缩小的直径部分的壳体，并且具有弹性膨胀器单元，用于将套管和管插入管板中。膨胀机组由至少两个由弹性体材料组成的弹性环组成，并且每个弹性环均具有设置在单元前后表面的外边缘处的倒角。通过对壳体前端的端口加压，活塞向后移动以使膨胀器环径向向外膨胀并膨胀，足以将套管牢固地扩张到管中并在其间提供压力密封。在套筒的这种膨胀之后，活塞被加压并向前移动以释放膨胀器单元环上的压缩，使得该工具可以容易地从膨胀的套管和管中抽出并插入另一个套筒和管中以供重复使用。

4. 发明授权

EP0516179B1 Apparatus for expanding and sealing a sleeve into a surrounding tube 失效
标题翻译：装置，用于扩展和在套管的套筒的密封。
公开(公告)号：EP0516179B1
公开(公告)日：1995-04-19
申请号：EP92111095.3
申请日：1988-07-22
申请人： FOSTER WHEELER ENERGY CORPORATION
发明人： Rabe, George B. , Johnson, Robert Harold
IPC分类号： B21D39/20 , B21D39/08 , B21D39/04 , B23P19/02
CPC分类号： B21D39/04 , B21D39/06 , B21D39/20 , B21D39/203 , B21D39/206

5. 发明公开

EP0516179A2 Apparatus for expanding and sealing a sleeve into a surrounding tube 失效
标题翻译： Einrichtung zum Expandieren und Abdichten einerHülsein einem Ummantelungsrohr。
公开(公告)号：EP0516179A2
公开(公告)日：1992-12-02
申请号：EP92111095.3
申请日：1988-07-22
申请人： FOSTER WHEELER ENERGY CORPORATION
发明人： Rabe, George B. , Johnson, Robert Harold
IPC分类号： B21D39/20 , B21D39/08 , B21D39/04 , B23P19/02
CPC分类号： B21D39/04 , B21D39/06 , B21D39/20 , B21D39/203 , B21D39/206
摘要： A pressurizable tool for locating a sleeve within a surrounding tube and pressure-tightly sealing the sleeve within the tube to repair leaks in the tube. The tool includes a housing containing an axially movable piston and a forward reduced diameter portion and having an elastic expander unit for inserting into the sleeve and tube in a tubesheet. The expander unit consists of at least two elastic rings composed of an elastomer material and each having a chamfer provided at the outer edge of the unit forward and rear faces. By pressurizing a port at the housing front end, the piston is moved rearwardly to axially compress and expand the expander rings radially outwardly sufficiently to expand the sleeve firmly into the tube and provide a pressure-tight seal therebetween. Following such expansion of the sleeve, the piston is pressurized and moved forward to release the compression on the expander unit rings, so that the tool can be easily withdrawn from the expanded sleeve and tube and inserted into another sleeve and tube for repeated usage.
摘要翻译：一种用于将套管定位在周围管内的可加压工具，并且将管中的套筒压紧密封以修复管中的泄漏。该工具包括一个壳体，该壳体包含一个可轴向移动的活塞和一个向前缩小的直径部分，并且具有用于将套管和管插入管板中的弹性膨胀器单元。膨胀机组由至少两个由弹性体材料组成的弹性环组成，并且每个弹性环均具有设置在单元前后表面的外边缘处的倒角。通过对壳体前端的端口加压，活塞向后移动以使膨胀器环径向向外膨胀并膨胀，足以将套管牢固地扩张到管中并在其间提供压力密封。在套筒的这种膨胀之后，活塞被加压并向前移动以释放膨胀器单元环上的压缩，使得该工具可以容易地从膨胀的套管和管中抽出并插入另一个套筒和管中以供重复使用。

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