GEORGE DREHER

Sucker Rod Pumpjack sales and service, Oil Well Pumping Unit sales and service, We Refurbish and Sell used Pumping Units and Oilfield Equipment at "Pumpjacks, etc."... A moving counterweight that reduces lifting and lowering torque of an unbalanced load. In one embodiment, a beam pump, an articulated reciprocating counterweight extending above the effort of a class 1 lever on extended pitman arms structurally and continuously changes position to reduce lifting and lowering torque, by mechanical geometric re-positioning of the counterbalance effect to and fro, when the rotation is crank arms falling toward the well load, thus mechanically, continuously, and favorably re-positioning the counterweight either away from the load and fulcrum thereby increasing the counterbalance effect, or nearer to the load and fulcrum thereby decreasing the counterbalance effect, as is desirable to compensate the unbalanced downhole load, where the load in the lift direction exceeds the load in the return..

Primary location: Midland United States