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    • 44. 发明授权
    • Electrically driven coiled tubing injector assembly
    • 电动连续油管喷油器总成
    • US08763709B2
    • 2014-07-01
    • US12900050
    • 2010-10-07
    • Rod Shampine
    • Rod Shampine
    • E21B19/08E21B19/22
    • E21B19/22E21B7/023
    • An assembly and techniques for employing multiple motors to drive an oilfield injector. The injector is configured to drive a well access line such as coiled tubing and the motors may be electric in nature. Additionally, the motors are configured to operate at substantially sufficient cooling speeds for electric motors. Nevertheless, the motors are coupled through a common differential mechanism such that a range of differential speeds may be derived via comparison of the operating speeds of the motors. Thus, a wide array of injection speeds may be employed without requiring the motors to operate at dangerously low speeds in terms of electric motor cooling.
    • 一种采用多台电机驱动油田喷油器的装配和技术。 喷射器被配置为驱动诸如连续油管的井口接入管线,并且电动机本质上可以是电气的。 此外,电动机被配置为以足够的冷却速度对电动机进行操作。 然而,电动机通过公共差速机构联接,使得可以通过比较电动机的运行速度来导出差速器的范围。 因此,可以采用各种各样的注射速度,而不需要马达在电动机冷却方面以危险的低速运行。