DEGRADABLE CASING SEAL CONSTRUCTION FOR DOWNHOLE APPLICATIONS
    2.
    发明申请
    DEGRADABLE CASING SEAL CONSTRUCTION FOR DOWNHOLE APPLICATIONS 有权
    适用于下水道应用的可降级铸件密封结构

    公开(公告)号:US20160145964A1

    公开(公告)日:2016-05-26

    申请号:US14552003

    申请日:2014-11-24

    IPC分类号: E21B33/128 E21B23/06

    CPC分类号: E21B33/1208

    摘要: In one aspect, a degradable apparatus is disclosed, including: an inner core with a first degradation rate in a downhole environment; an outer sheath disposed around an outer extent of the inner core with a second degradation rate less than the first degradation rate in the downhole environment. In another aspect, a method of temporarily sealing a downhole zone is disclosed, including: providing an inner core with a first degradation rate in a downhole environment; providing an outer sheath disposed around an outer extent of the inner core with a second degradation rate less than the first degradation rate in the downhole environment; sealing the downhole zone with the outer sheath; exposing the outer sheath to the downhole environment; and exposing the inner core to the downhole environment.

    摘要翻译: 一方面,公开了一种可降解装置,包括:在井下环境中具有第一降解速率的内核; 外护套,其设置在内芯的外部范围内,具有小于井下环境中的第一劣化率的第二降解率。 另一方面,公开了临时密封井下区域的方法,包括:在井下环境中提供具有第一降解速率的内核; 提供围绕所述内芯的外部范围设置的外护套,其具有小于所述井下环境中的所述第一降解速率的第二降解速率; 用外护套密封井下区域; 将外护套暴露于井下环境; 并将内芯暴露于井下环境中。

    CONTROLLED ELECTROLYTIC DEGREDATION OF DOWNHOLE TOOLS
    3.
    发明申请
    CONTROLLED ELECTROLYTIC DEGREDATION OF DOWNHOLE TOOLS 有权
    卧式工具的控制电解质降解

    公开(公告)号:US20130146302A1

    公开(公告)日:2013-06-13

    申请号:US13324753

    申请日:2011-12-13

    IPC分类号: E21B43/00

    摘要: A downhole assembly with controlled degradation including a body having a cavity therein and is formed from a first material having a first electrode potential. An insert is disposed in the cavity, the insert electrically coupled to the body and formed from a second material having a second electrode potential, with the first electrode potential being more negative than the second electrode potential.

    摘要翻译: 具有受控劣化的井下组件,包括其中具有空腔的主体,并且由具有第一电极电位的第一材料形成。 插入件设置在空腔中,插入件电耦合到主体并由具有第二电极电位的第二材料形成,其中第一电极电位比第二电极电位更负。

    Degradable casing seal construction for downhole applications

    公开(公告)号:US09777550B2

    公开(公告)日:2017-10-03

    申请号:US14552003

    申请日:2014-11-24

    IPC分类号: E21B33/12

    CPC分类号: E21B33/1208

    摘要: In one aspect, a degradable apparatus is disclosed, including: an inner core with a first degradation rate in a downhole environment; an outer sheath disposed around an outer extent of the inner core with a second degradation rate less than the first degradation rate in the downhole environment. In another aspect, a method of temporarily sealing a downhole zone is disclosed, including: providing an inner core with a first degradation rate in a downhole environment; providing an outer sheath disposed around an outer extent of the inner core with a second degradation rate less than the first degradation rate in the downhole environment; sealing the downhole zone with the outer sheath; exposing the outer sheath to the downhole environment; and exposing the inner core to the downhole environment.