This paper presents a finite-difference representation of the wave equation developed for diagnostic analyses of sucker-rod pumping systems. A consistent method of computing the viscous damping term associated with the damped-wave equation is also presented.

Keywords:
coefficient, displacement, engineering, fluid level, downhole dynamometer card, stability criterion, artificial lift system, surface card, pump card, wave equation
Subjects:
Artificial Lift Systems, Beam and related pumping techniques
Copyright 1992, Society of Petroleum Engineers
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