Application: pumping unit, screw pump

At present, oil and gas Wells are mainly dominated by high-inclination directional Wells, horizontal Wells and other well types. This well type has different degrees of "dogleg" phenomenon (full Angle variation rate) below the deviation point. When the sucker rod rotates or reciprocates up and down in the oil pipe, the "dogleg" is more serious in the parts where the bending degree is serious, the friction and additional bending moment are larger, and the deviation wear is more serious at the deviation point. The lateral displacement had far exceeded the gap between the rod and the tubing and penetrated the tubing. Therefore, to eliminate or reduce the effect of the "dogleg degree", a rod drive guide was installed in the area of the well inclination and full Angle change rate.

It can effectively solve the comprehensive problems such as bending moment, tension, wear and torque of the rod string in the well type with large variation of dog-leg degree. The overall outside diameter of the device is small, and the transmission is flexible, which can effectively alleviate the partial wear problem of the tool in the tubing.