Systems and Methods for Secondary Sealing of a Perforation within a Wellbore Casing
    8.
    发明申请
    Systems and Methods for Secondary Sealing of a Perforation within a Wellbore Casing 审中-公开
    井筒套管内二次密封的系统和方法

    公开(公告)号:US20150090453A1

    公开(公告)日:2015-04-02

    申请号:US14391157

    申请日:2013-04-15

    摘要: Systems and methods for secondary sealing of a perforation present within a wellbore casing associated with a primary sealing agent. The wellbore casing defines a casing conduit present within a wellbore that extends between a surface region and a subterranean formation. The systems and methods include a sealing apparatus that retains a charge of sealing material with a secondary sealing agent and is conveyed within the casing conduit to within a threshold distance of the perforation. The systems and methods further include selectively releasing the charge of sealing material from the sealing apparatus, such as by a release mechanism, to deliver the charge of sealing material to the perforation, to supplement the primary sealing agent (and/or a seal formed thereby), and/or to decrease a flow rate of a fluid from the casing conduit through the perforation.

    摘要翻译: 存在于与主密封剂相关联的井眼套管内的穿孔的二次密封的系统和方法。 井眼套管限定了在井眼内存在的壳体管道,其在表面区域和地下地层之间延伸。 该系统和方法包括密封装置,该密封装置保持具有二次密封剂的密封材料的电荷并且在壳体导管内传送到穿孔的阈值距离内。 所述系统和方法还包括例如通过释放机构从密封装置中选择性地释放密封材料的装料,以将密封材料的装料输送到穿孔,以补充主密封剂(和/或由此形成的密封件 )和/或降低来自壳体导管的流体通过穿孔的流速。