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    • 1. 发明授权
    • High temperature packers
    • 高温包装机
    • US09518438B2
    • 2016-12-13
    • US13962045
    • 2013-08-08
    • Kai SunThomas Gary Corbett
    • Kai SunThomas Gary Corbett
    • E21B33/12E21B33/128
    • E21B33/12E21B33/128
    • Self-initialized packers for use in high temperature steam injection applications in wellbores are provided. The packers include an actuating mechanism for setting a packing element for sealing within an openhole or cased hole. The actuating mechanism includes an actuator sleeve that includes an actuating element constructed from a shape memory alloy that has a transformation temperature range greater than a geothermal temperature of the wellbore, and is actuated upon heating from steam injection. Systems and methods of using the packers are also provided.
    • 提供了用于井筒中高温蒸汽注入应用的自初始化包装机。 封隔器包括用于将密封件设置在裸露孔或套管孔内的致动机构。 致动机构包括致动器套筒,该致动器套筒包括由形状记忆合金构成的致动元件,该形状记忆合金的转变温度范围大于井筒的地热温度,并且在从蒸汽喷射加热时被致动。 还提供了使用封隔器的系统和方法。