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    • 10. 发明申请
    • OPEN-HOLE PACKER FOR ALTERNATE PATH GRAVEL PACKING, AND METHOD FOR COMPLETING AN OPEN-HOLE WELLBORE
    • 用于替代路径包装的开孔包装,以及用于完成开孔孔的方法
    • WO2011062669A3
    • 2012-04-12
    • PCT/US2010046329
    • 2010-08-23
    • EXXONMOBIL UPSTREAM RES COHAEBERLE DAVID CBARRY MICHAEL DHECKER MICHAEL T
    • HAEBERLE DAVID CBARRY MICHAEL DHECKER MICHAEL T
    • E21B33/12
    • E21B33/10E21B33/1208E21B33/124E21B43/04
    • Zonal isolation apparatus includes at least one packer assembly and can be used in completing an open-hole portion of a wellbore, which open-hole portion extends through at least two subsurface intervals. The zonal isolation apparatus includes base pipe and filter medium, which together form a sand screen. Each packer assembly comprises at least two mechanically set packer elements. Intermediate the at least two mechanically set packer elements is at least one swellable packer element. The swellable packer element is actuated over time in the presence of a fluid such as water, oil, or a chemical. Swelling may occur should one of the mechanically set packer elements fail. The zonal isolation apparatus also includes alternate flow channel(s) that serve to divert gravel pack slurry from an upper interval to lower intervals during gravel packing operations. A method for completing a wellbore using the zonal isolation apparatus is also provided herein.
    • 区域隔离装置包括至少一个封隔器组件,并且可以用于完成井孔的露天部分,该开孔部分延伸穿过至少两个地下间隔。 区域隔离装置包括基管和过滤介质,它们一起形成砂筛。 每个封隔器组件包括至少两个机械设置的封隔器元件。 中间至少两个机械设置的封隔器元件是至少一个可膨胀的封隔器元件。 在存在诸如水,油或化学物质的流体的情况下,可膨胀的封隔器元件随时间被致动。 如果机械设置的封隔器元件之一发生故障,则可能会发生膨胀。 区域隔离装置还包括用于在砾石包装操作期间将砾石充填浆料从上部间隔转移到较低间隔的交替流动通道。 本文还提供了使用区域隔离装置完成井筒的方法。