Diverter plugs for use in well bores and associated methods of use
    1.
    发明授权
    Diverter plugs for use in well bores and associated methods of use 有权
    用于井筒和相关使用方法的转向插头

    公开(公告)号:US07350578B2

    公开(公告)日:2008-04-01

    申请号:US11263730

    申请日:2005-11-01

    IPC分类号: E21B33/12 E21B43/26

    摘要: Zonal isolation of well bores is often desirable for performing downhole operations such as stimulation operations. In certain embodiments, diverter plugs for achieving zonal isolation in a casing string in a well bore may comprise a mandrel having a first end and a second end; a compressible body attached to and surrounding a longitudinal portion of the mandrel; and a sealing nose attached to the first end of the mandrel. In certain embodiments, systems for achieving zonal isolation of a casing string in a well bore may comprise a diverter plug comprising a mandrel having a first end and a second end, a compressible body attached to and surrounding a longitudinal portion of the mandrel, and a sealing nose attached to the first end of the mandrel; and a landing collar sized to mate with a portion of the sealing nose of the diverter plug. Associated methods are also provided.

    摘要翻译: 进行井下作业,如刺激作业,井眼的区域隔离通常是需要的。 在某些实施例中,用于实现井筒中套管柱中的区域隔离的分流器塞可以包括具有第一端和第二端的心轴; 附接到并围绕心轴的纵向部分的可压缩主体; 以及连接到心轴的第一端的密封鼻。 在某些实施例中,用于实现套管柱在井眼中的区域分离的系统可以包括分流塞,其包括具有第一端和第二端的心轴,连接到并围绕心轴的纵向部分的可压缩体,以及 密封鼻连接到心轴的第一端; 以及尺寸适合与分流塞的密封鼻部的一部分配合的着陆衣领。 还提供了相关的方法。