Dynagrams help design, diagnose sucker-rod pumping systems

Robert J. Watson Sheer Lea Pty Ltd. Applecross, Western Australia A spreadsheet designed by the author facilitates the design and diagnosis of sucker-rod pumping systems by wave-train analysis. Incorporated within the spreadsheet are equations required for presenting quantitative, theoretical pump dynagrams, and pressure-vs.-stroke diagrams. The spreadsheet allows the user to study the effects of a range of fluid properties and pump geometries. Spreadsheet background Gibbs,1 in 1963, published a mathematical wave-train-based method for designing and diagnosing sucker-rod pumping systems. With this method, the pump dynagram is the starting point for system desig...

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