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:
Oct. 11, 2011
Filed:
Oct. 31, 2008
Sam G. Gibbs, Midland, TX (US);
Doneil M. Dorado, Missouri City, TX (US);
Kenneth B. Nolen, Midland, TX (US);
Eric S. Oestreich, Richmond, TX (US);
Jeffrey J. Dacunha, Midland, TX (US);
Sam G. Gibbs, Midland, TX (US);
Doneil M. Dorado, Missouri City, TX (US);
Kenneth B. Nolen, Midland, TX (US);
Eric S. Oestreich, Richmond, TX (US);
Jeffrey J. DaCunha, Midland, TX (US);
Lufkin Industries, Inc., Lufkin, TX (US);
Abstract
An instrumentation system for assessing operation of a reciprocating pump system which produces hydrocarbons from a non-vertical or a vertical wellbore. The instrumentation system periodically produces a downhole pump card as a function of a directly or indirectly measured surface card and a friction law function from a wave equation which describes the linear vibrations in a long slender rod. A control signal or command signal is generated based on characteristics of the downhole pump card for controlling the pumping system. It also generates a pump and well analysis report that is useful for a pump operation and determination of its condition.