The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 30, 2007
Filed:
Sep. 05, 2003
Thomas L. Beck, Union Grove, WI (US);
Ronald G. Peterson, Racine, WI (US);
Mark E. Garlow, Kenosha, WI (US);
Theresa Smigura, Winthrop Harbor, IL (US);
Thomas L. Beck, Union Grove, WI (US);
Ronald G. Peterson, Racine, WI (US);
Mark E. Garlow, Kenosha, WI (US);
Theresa Smigura, Winthrop Harbor, IL (US);
Unico, Inc., Franksville, WI (US);
Abstract
A rod pump control system includes a parameter estimator that determines from motor data parameters relating to operation of the rod pump and/or downhole dynamometer card without the need for external instrumentation, such as down hole sensors, rod load sensors, flow sensors, acoustic fluid level sensors, etc. In one embodiment, instantaneous motor current and voltage together with pump parameters are used in determining rod position and load. The rod position and load are used to control the operation of the rod pump to optimize the operation of the pump. Also disclosed in a pump stroke amplifier that is capable of increasing pump stroke without changing the overall pumping speed, or in the alternative, maintaining the well output with decreased overall pumping speed.