Composite centralizer with expandable elements
    1.
    发明授权
    Composite centralizer with expandable elements 有权
    具有可扩展元件的复合式扶正器

    公开(公告)号:US09038738B2

    公开(公告)日:2015-05-26

    申请号:US13416746

    申请日:2012-03-09

    IPC分类号: E21B17/10

    CPC分类号: E21B17/1028 E21B17/1078

    摘要: A centralizer comprises a first body portion, a second body portion, a plurality of bow springs connecting the first body portion to the second body portion, and one or more expandable elements coupled to the first body portion and the second body portion. A method of centralizing a wellbore tubular comprises compressing a bow spring radially inward from a starting position to a compressed position, wherein the bow spring is coupled to a first body portion and a second body portion, applying a tensile force between the first body portion and the second body portion while the bow spring is in the compressed position, and restoring the bow spring from the compressed position to the starting position.

    摘要翻译: 一种扶正器包括第一主体部分,第二主体部分,将第一主体部分连接到第二主体部分的多个弓形弹簧以及联接到第一主体部分和第二主体部分的一个或多个可扩张元件。 集中井筒的方法包括将弓形弹簧从起始位置向压缩位置径向向内压缩,其中弓形弹簧联接到第一主体部分和第二主体部分,在第一主体部分和第二主体部分之间施加张力 第二主体部分,同时弓形弹簧处于压缩位置,并且将弓弹簧从压缩位置恢复到起始位置。

    Composite Centralizer with Expandable Elements
    2.
    发明申请
    Composite Centralizer with Expandable Elements 有权
    具有可扩展元素的复合式扶正器

    公开(公告)号:US20130233568A1

    公开(公告)日:2013-09-12

    申请号:US13416746

    申请日:2012-03-09

    IPC分类号: E21B23/00 E21B17/10

    CPC分类号: E21B17/1028 E21B17/1078

    摘要: A centralizer comprises a first body portion, a second body portion, a plurality of bow springs connecting the first body portion to the second body portion, and one or more expandable elements coupled to the first body portion and the second body portion. A method of centralizing a wellbore tubular comprises compressing a bow spring radially inward from a starting position to a compressed position, wherein the bow spring is coupled to a first body portion and a second body portion, applying a tensile force between the first body portion and the second body portion while the bow spring is in the compressed position, and restoring the bow spring from the compressed position to the starting position.

    摘要翻译: 一种扶正器包括第一主体部分,第二主体部分,将第一主体部分连接到第二主体部分的多个弓形弹簧以及联接到第一主体部分和第二主体部分的一个或多个可扩张元件。 集中井筒的方法包括将弓形弹簧从起始位置向压缩位置径向向内压缩,其中弓形弹簧联接到第一主体部分和第二主体部分,在第一主体部分和第二主体部分之间施加张力 第二主体部分,同时弓形弹簧处于压缩位置,并且将弓弹簧从压缩位置恢复到起始位置。