Downhole seal
    1.
    发明授权
    Downhole seal 有权
    井下密封

    公开(公告)号:US08727027B2

    公开(公告)日:2014-05-20

    申请号:US12865981

    申请日:2009-02-05

    IPC分类号: E21B33/128

    CPC分类号: E21B33/1208

    摘要: An expandable downhole seal includes a sealing portion and a deflecting portion adapted to move axially relative to each other to effect radial displacement of the sealing portion, wherein at least one of the sealing portion and the deflecting portion includes a swelling material. In use, radial expansion of the downhole seal may be achieved by the radial displacement of the sealing portion in combination with swelling of the swellable material. A support member is provided to support the sealing portion and deflecting portion.

    摘要翻译: 可膨胀井下密封件包括密封部分和适于相对于彼此轴向移动以实现密封部分的径向位移的偏转部分,其中密封部分和偏转部分中的至少一个包括膨胀材料。 在使用中,井下密封件的径向膨胀可以通过密封部分与膨胀材料的膨胀的径向位移来实现。 提供支撑构件以支撑密封部分和偏转部分。

    Expanding a tubular element to different inner diameters
    3.
    发明申请
    Expanding a tubular element to different inner diameters 有权
    将管状元件扩大到不同的内径

    公开(公告)号:US20060162938A1

    公开(公告)日:2006-07-27

    申请号:US10563505

    申请日:2004-07-06

    IPC分类号: E21B23/00

    摘要: A method of expanding a tubular element is provided, the tubular element having a first portion to be expanded to a first inner diameter and a second portion to be expanded to a second inner diameter larger than the first inner diameter. The method comprising: a) arranging an expandable sleeve of selected wall thickness in said second tubular element portion; b) positioning an expander in the tubular element; c) operating the expander so as to expand said first tubular element portion to the first inner diameter, and operating the expander so as to expand the sleeve to an inner diameter substantially equal to the second inner diameter minus double the wall thickness of the sleeve; and d) retrieving the sleeve from the tubular element.

    摘要翻译: 提供了一种使管状元件膨胀的方法,该管状元件具有第一部分,该第一部分被扩张至第一内径,第二部分被扩张至比第一内径大的第二内径。 该方法包括:a)在所述第二管状元件部分中布置所选壁厚的可膨胀套筒; b)将膨胀机定位在管状元件中; c)操作所述膨胀机,以使所述第一管状元件部分膨胀至所述第一内径,并操作所述膨胀器以使所述套筒膨胀至基本上等于所述第二内径的内径减去所述套筒的壁厚的两倍; 以及d)从所述管状元件取回所述套筒。

    DOWNHOLE SEAL
    4.
    发明申请
    DOWNHOLE SEAL 有权
    卧室密封

    公开(公告)号:US20110193291A1

    公开(公告)日:2011-08-11

    申请号:US12865981

    申请日:2009-02-05

    IPC分类号: E21B33/128

    CPC分类号: E21B33/1208

    摘要: An expandable downhole seal includes a sealing portion and a deflecting portion adapted to move axially relative to each other to effect radial displacement of the sealing portion, wherein at least one of the sealing portion and the deflecting portion includes a swelling material. In use, radial expansion of the downhole seal may be achieved by the radial displacement of the sealing portion in combination with swelling of the swellable material. A support member is provided to support the sealing portion and deflecting portion.

    摘要翻译: 可膨胀井下密封件包括密封部分和适于相对于彼此轴向移动以实现密封部分的径向位移的偏转部分,其中密封部分和偏转部分中的至少一个包括膨胀材料。 在使用中,井下密封件的径向膨胀可以通过密封部分与膨胀材料的膨胀的径向位移来实现。 提供支撑构件以支撑密封部分和偏转部分。

    Method of creating a borehole in an earth formation
    6.
    发明申请
    Method of creating a borehole in an earth formation 有权
    在地层中形成钻孔的方法

    公开(公告)号:US20070034408A1

    公开(公告)日:2007-02-15

    申请号:US10554066

    申请日:2004-04-16

    IPC分类号: E21B7/20

    摘要: A method of creating a borehole in an earth formation is provided. The method involves the steps of drilling a section of the borehole and lowering an expandable tubular element into the borehole whereby a lower portion of the tubular element extends into the drilled borehole section, radially expanding the lower portion of the tubular element so as to form a casing in the drilled borehole section, and separating an upper portion of the tubular element from the lower portion so as to allow the separated upper portion to be moved relative to the lower portion.

    摘要翻译: 提供了一种在地层中产生钻孔的方法。 该方法包括以下步骤:钻出钻孔的一部分并将可膨胀的管状元件降低到钻孔中,由此管状元件的下部延伸到钻孔中,径向地扩张管状元件的下部,从而形成 并且将管状元件的上部与下部分离开,以便允许分离的上部相对于下部移动。