Inferred production rates of a rod pumped well from surface...

Details Inferred production rates of a rod pumped well from surface... Inferred production rates of a rod pumped well from surface...

2007-05-01

2007-05-01

McElheny, Jr., Donald (Department: 2857)

Data processing: measuring, calibrating, or testing

Measurement system in a specific environment

Earth science

Reexamination Certificate

active

10940273

ABSTRACT:
A method for inferring production of a rod pumped well. Inferred production is estimated in a well manager which not only performs pump-off control with a down-hole pump card, but also estimates liquid (oil-water) and gas production using the subsurface pump as a meter. Methods are incorporated in the well manager for identifying and quantifying several conditions: pump leakage, unanchored tubing, free gas and oil shrinkage. Quantifying such conditions in the well manger enables accurate inferring of production thereby eliminating the need for traditional well tests.

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patent: 5715890 (1998-02-01), Nolen
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Kenneth B. Nolen and Sam G. Gibbs, Quantitative Determination of Rod-Pumpsed Leakage with Dynamometer Techniques, SPE Production Engineer, Aug. 1990.
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Andy C. Eckel, Harold P. Abels, Ross A. Merritt, Testing and Practically Applying Pump-Off Controllers in a Waterflood, Society of Petroleum Engineers, Mar. 1995.
K. B. Nolen and S. G. Gibbs, Measurement and Interpretation of Fluid Levels Obtained by Venting Casing Gas, Society of Petroleum Engineers, Oct. 1997.
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