Rotary drive assembly for downhole rotary pump

Details Rotary drive assembly for downhole rotary pump Rotary drive assembly for downhole rotary pump

1981-10-06

1983-02-08

Novosad, Stephen J.

Wells

With below and above ground modification

Eduction pump or plunger in well

166 78, 166 88, E21B 4300

Patent

active

043723799

ABSTRACT:
The drive assembly is used in connection with a well assembly. The well assembly comprises a tubing string having a rod string positioned therein. In accordance with the invention, a box frame is connected to the upper end of the tubing. A rotatable spindle or rotor is mounted on the frame above the upper end of the tubing. The rotor defines an axial bore. The polish rod of the rod string extends through the rotor bore. A polish rod clamp seats in a key seat in the rotor and grips the polish rod. The clamp functions to drivably interconnect the rotor and rod string and to suspend the rod string from the rotor and thus the wellhead. Means are provided to rotate the rotor. A stuffing box is mounted on the tubing end within the confines of the frame, to provide a seal around the rod string.

REFERENCES:
patent: 2471198 (1949-05-01), Cormany
patent: 3891031 (1975-06-01), Ortiz
patent: 4087211 (1978-05-01), Pochyly
patent: 4089624 (1978-05-01), Nichols et al.
patent: 4314611 (1982-02-01), Willis
Composite Catalog of Oil Field Equipment & Services, published by World Oil, Gulf Publishing Co., Houston, Texas, 25th Rev., 1962-1963, vol. 3, p. 5366.

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