Axial compression enhanced tubular expansion
    1.
    发明申请
    Axial compression enhanced tubular expansion 审中-公开
    轴向压缩增强管状膨胀

    公开(公告)号:US20070000664A1

    公开(公告)日:2007-01-04

    申请号:US11171061

    申请日:2005-06-30

    IPC分类号: E21B23/00

    摘要: Methods and apparatus for expanding a tubular with the aid of a compressive force are disclosed. A tubular is run into a wellbore. While the tubular is in a compressive state, the tubular is expanded into its desired form. The expanded tubular can be used for multiple downhole functions such as completing multilateral junctions in a wellbore, patching apertures in a wellbore and lining a wellbore.

    摘要翻译: 公开了借助于压缩力来膨胀管的方法和装置。 管子进入井眼。 当管状物处于压缩状态时,管状物扩展成其所需的形状。 膨胀管可以用于多个井下功能,例如在井眼中完成多边接头,在井筒中修补孔眼并衬里井筒。

    Tubing expansion
    2.
    发明申请
    Tubing expansion 有权
    管道膨胀

    公开(公告)号:US20060052936A1

    公开(公告)日:2006-03-09

    申请号:US10869502

    申请日:2004-06-16

    IPC分类号: G01V1/40 G01V3/18

    CPC分类号: E21B43/105 E21B43/103

    摘要: There are disclosed methods and apparatus for expanding tubing downhole. In one embodiment, there is disclosed a method of expanding downhole tubing such as a liner (10), the method comprising the steps of locating the liner (10) in a borehole (12), expanding a part (16) of the liner (10) in the borehole (12), locating an expansion device such as an expandable cone (18) in said expanded part (16) of the liner (10), and translating the cone (18) relative to the liner (10) to expand a further part (20) of the liner (10).

    摘要翻译: 公开了用于扩展井下管道的方法和装置。

    Tubing expansion
    3.
    发明申请
    Tubing expansion 有权
    管道膨胀

    公开(公告)号:US20050161226A1

    公开(公告)日:2005-07-28

    申请号:US10869458

    申请日:2004-06-16

    IPC分类号: E21B43/10 E21B23/02

    CPC分类号: E21B43/105 E21B43/103

    摘要: In one embodiment, there is disclosed a method of expanding tubing comprising providing an assembly 40 comprising a section of expandable tubing (42) and an expansion device in the form of an expansion mandrel (44) located at least partially externally of the tubing (42), running the assembly (40) into a bore, translating the expansion mandrel (44) relative to the tubing (42) to expand an end section of the tubing (42), and further translating the expansion mandrel (44) relative to the tubing (42) to expand a further section of the tubing (42).

    摘要翻译: 在一个实施例中,公开了一种膨胀管道的方法,包括提供组件40,该组件40包括膨胀管(42)的一部分和膨胀心轴(44)形式的膨胀装置,所述膨胀心轴至少部分位于管(42)的外部 ),将所述组件(40)运行到孔中,相对于所述管(42)平移所述膨胀心轴(44)以扩展所述管(42)的端部部分,并且还使所述膨胀心轴(44)相对于所述管 管道(42)以扩展管道(42)的另一部分。

    Methods for expanding tubular strings and isolating subterranean zones
    8.
    发明授权
    Methods for expanding tubular strings and isolating subterranean zones 有权
    膨胀管柱和隔离地下区域的方法

    公开(公告)号:US07275602B2

    公开(公告)日:2007-10-02

    申请号:US10954866

    申请日:2004-09-30

    IPC分类号: E21B29/10

    摘要: Methods and apparatus for expanding tubulars are disclosed. The tubulars may be part of a tubular string for isolating one or more zones within a wellbore. In one embodiment, the tubular string includes a first expandable zone isolation unit disposed on a first side of a zone to be isolated, a second expandable zone isolation unit disposed on a second side of the zone to be isolated, and a perforated tubular disposed in fluid communication with a producing zone. The tubular string may be expanded using an expansion assembly having a first expander for expanding the first and second expandable zone isolation units and a second expander for expanding the at least one perforated tubular. Tags or markers along the tubular string may indicate locations where expansion is desired such that connections or connectors between joints are not expanded.

    摘要翻译: 公开了用于膨胀管的方法和装置。 管状物可以是用于隔离井筒内的一个或多个区域的管状管柱的一部分。 在一个实施例中,管状柱包括设置在待隔离区域的第一侧上的第一可膨胀区域隔离单元,设置在待隔离区域的第二侧上的第二可膨胀区域隔离单元和设置在 与生产区的流体连通。 可以使用具有用于膨胀第一和第二可膨胀区隔离单元的第一膨胀器的膨胀组件和用于膨胀至少一个穿孔管的第二膨胀器来膨胀管状管柱。 沿着管状串的标签或标记可以指示需要膨胀的位置,使得接头之间的连接或连接件不膨胀。

    Reverse sliding seal for expandable tubular connections
    9.
    发明申请
    Reverse sliding seal for expandable tubular connections 有权
    用于可扩展管状连接的反向滑动密封

    公开(公告)号:US20070035130A1

    公开(公告)日:2007-02-15

    申请号:US11201499

    申请日:2005-08-11

    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。

    Methods and apparatus for expanding tubular strings and isolating subterranean zones
    10.
    发明申请
    Methods and apparatus for expanding tubular strings and isolating subterranean zones 有权
    用于扩展管状管柱和隔离地下区域的方法和装置

    公开(公告)号:US20060065408A1

    公开(公告)日:2006-03-30

    申请号:US10954866

    申请日:2004-09-30

    IPC分类号: E21B23/02

    摘要: Methods and apparatus for expanding tubulars are disclosed. The tubulars may be part of a tubular string for isolating one or more zones within a wellbore. In one embodiment, the tubular string includes a first expandable zone isolation unit disposed on a first side of a zone to be isolated, a second expandable zone isolation unit disposed on a second side of the zone to be isolated, and a perforated tubular disposed in fluid communication with a producing zone. The tubular string may be expanded using an expansion assembly having a first expander for expanding the first and second expandable zone isolation units and a second expander for expanding the at least one perforated tubular. Tags or markers along the tubular string may indicate locations where expansion is desired such that connections or connectors between joints are not expanded.

    摘要翻译: 公开了用于膨胀管的方法和装置。 管状物可以是用于隔离井筒内的一个或多个区域的管状管柱的一部分。 在一个实施例中,管状柱包括设置在待隔离区域的第一侧上的第一可膨胀区域隔离单元,设置在待隔离区域的第二侧上的第二可膨胀区域隔离单元和设置在 与生产区的流体连通。 可以使用具有用于膨胀第一和第二可膨胀区隔离单元的第一膨胀器的膨胀组件和用于膨胀至少一个穿孔管的第二膨胀器来膨胀管状管柱。 沿着管状串的标签或标记可以指示需要膨胀的位置,使得接头之间的连接或连接件不膨胀。