A numerical controlled drive tower pumping unit includes a main tower frame, a power system, a drive system, a control system, a wire rope wheel, a balance weight box, and a suction rod. The power system, drive system, and control system work to alternately raise and lower the suction rod. The pumping unit includes a safety braking system configured to permit free rotation of the drive system in a normal operating state and prevent rotation of the drive system in an abnormal operation state. The pumping unit includes a tower moving mechanism configured to roll the main tower frame along a foundation frame from a normal operation position with the main tower frame proximate to a wellhead borehole to a workover position with the main tower frame distant from the wellhead borehole. The moving mechanism includes retractable roller assemblies to facilitate movement of the main tower frame.


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    Title :

    Tower drive pumping unit


    Contributors:
    MAO HONGWEI (author) / CHEN DAH KONG (author)

    Publication date :

    2018-10-09


    Type of media :

    Patent


    Type of material :

    Electronic Resource


    Language :

    English


    Classification :

    IPC:    B66F HOISTING, LIFTING, HAULING, OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD , Hub-, Verhol- oder Schubvorrichtungen, soweit nicht anderweitig vorgesehen, z.B. Vorrichtungen mit unmittelbarer Krafteinwirkung auf die Last / E21B EARTH OR ROCK DRILLING , Erd- oder Gesteinsbohren / F04B Verdrängerkraft- und Verdrängerarbeitsmaschinen für Flüssigkeiten , POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS



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