Paper: Dynamometer For Hydraulic Pumping Systems

An instrument for pressure analysis to be used in well analysis and study has been needed for some time. A new instrument which can measure differential pressures in the range of 1.25 psi to 28 psi per mm, and a chart speed with an accuracy of .002 of one second is being used in well analysis. This type of study has much to uncover in this field. It could be compared with the first studies of the dynamometer used in rod pumping studies, 30 years ago. The paper will have examples of some of the studies pertaining to tests made on various hydraulic pumping systems.