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    • 91. 发明申请
    • Wellbore Plug Isolation System and Method
    • 井筒插塞隔离系统及方法
    • US20160047198A1
    • 2016-02-18
    • US14721874
    • 2015-05-26
    • GEODynamics, Inc.
    • John T. HardestyMichael D. WroblickyPhilip M. Snider
    • E21B33/12E21B43/26
    • E21B33/1208E21B43/14E21B43/26E21B2033/005
    • A wellbore plug isolation system and method for positioning plugs to isolate fracture zones in a horizontal, vertical, or deviated wellbore is disclosed. The system/method includes a wellbore casing laterally drilled into a hydrocarbon formation, a wellbore setting tool (WST) that sets a large inner diameter (ID) restriction sleeve member (RSM), and a restriction plug element (RPE). The RPE includes a first composition and a second composition that changes phase or strength under wellbore conditions. After a stage is perforated, RPEs are deployed to isolate toe ward pressure communication. The second composition changes phase to create flow channels in the RPE during production. In an alternate system/method, the second composition changes phase or strength thereby deforming the RPE to reduce size and pass through the RSM's. The RPEs are removed or left behind prior to initiating well production without the need for a milling procedure.
    • 公开了一种用于定位插塞以隔离水平,垂直或偏离井筒中的断裂带的井筒塞隔离系统和方法。 系统/方法包括横向钻入烃地层的井眼套管,设置大内径(ID)限制套管构件(RSM)的井眼设定工具(WST)和限制塞块元件(RPE))。 RPE包括在井眼条件下改变相或强度的第一组合物和第二组合物。 穿孔阶段后,部署RPE以隔离病房压力沟通。 第二个组合物在生产期间改变阶段以在RPE中创建流动通道。 在替代系统/方法中,第二组合物改变相位或强度,从而使RPE变形以减小尺寸并通过RSM。 在开始生产良好之前RPE被移除或留下,而不需要铣削程序。