Air balance control for a pumping unit

Details Air balance control for a pumping unit Air balance control for a pumping unit

1991-08-27

1993-01-19

Smith, Leonard E.

Pumps

Processes

60372, F04B 4714

Patent

active

051802899

ABSTRACT:
An air-balance control system for a pumping unit minimizes the difference in torque on pumping unit components on the upstroke and the downstroke. The control system measures pump motor current and rod string position to effectuate porting air to or venting air from the air receiver tank in an air-balance system.

REFERENCES:
patent: 2808735 (1957-10-01), Becker
patent: 3115806 (1963-12-01), Stimmell
patent: 4490094 (1984-12-01), Gibbs
patent: 4583915 (1986-04-01), Montgomery et al.
Preliminary Release Notice entitled Air Balanced Pumping Unit Controller (Air Balance Controller) Model ABC-100 (undated).
Excerpt from "What's new in artificial lift," World Oil, May 1989 p. 32 entitled Automatic Counterbalancing for Air Balanced Units, by Lea, J. F. and Winkler, H. W.
Brochure entitled Baker Model 8650 Rod Pump Controller (undated).
Excerpt from Baker CAC Model 8650 Rod Pump Controller, Installation & Operation Manual, dated Jun. 7, 1991.

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