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    • 7. 发明授权
    • System and method for maintaining position of a wellbore servicing device within a wellbore
    • 用于保持井筒内的井筒维修装置的位置的系统和方法
    • US08307904B2
    • 2012-11-13
    • US12773481
    • 2010-05-04
    • Jim Basuki Surjaatmadja
    • Jim Basuki Surjaatmadja
    • E21B19/02
    • E21B4/18
    • A method of maintaining a location of a wellbore servicing device includes connecting a pressure activated hold-down tool (PAHT) to the wellbore servicing device, delivering the wellbore servicing device and the PAHT into a wellbore, selectively increasing a curvature of the PAHT in response to a change in a fluid pressure, and engaging the PAHT with a feature of a wellbore to prevent longitudinal movement of the wellbore servicing device. A PAHT has pressure actuated elements that selectively provide an unactuated state in which the PAHT lies substantially along a longitudinal axis and the pressure actuated elements selectively lie increasingly deviated from the longitudinal axis in response to a change in pressure applied to the PAHT. At least one of the pressure actuated elements has a tooth configured for selective resistive engagement with a feature of the wellbore.
    • 保持井筒维修装置的位置的方法包括将压力启动压紧工具(PAHT)连接到井筒维修装置,将井筒维修装置和PAHT输送到井筒中,选择性地增加响应中的PAHT的曲率 以改变流体压力,并且将PAHT与井眼的特征接合以防止井眼维修装置的纵向移动。 PAHT具有压力致动元件,其选择性地提供未致动状态,其中PAHT基本上位于纵向轴线上,并且压力致动元件响应于施加到PAHT的压力变化而选择性地从纵向轴线偏离。 压力致动元件中的至少一个具有构造成用于与井眼的特征选择性阻力接合的齿。