Paper: Sucker Rod Pumping System Design Tools for QRod

QRod is the most widely used program for the design and prediction of the performance of Sucker Rod Beam Pumping Installations. A damped wave equation solution is used to accurately predict the surface dynamometer loads, gearbox torque and pump capacity, with a minimum amount of input. New design tools have been added to include: 1) Slippage Calculator from pump clearances ties the pump efficiency to the predicted pump displacement. 2) Sinker Bar length calculator determines the sinker bar length as pump diameter or pump depth chances. 3) Results can be shown in any system of units. 4) Dynamometer measured surface DYN files can be imported and plotted on top of the predicted dynamometer card. QRod's objective is to help the beam pumping system designer implement state of the art design technology without getting buried with details. Changing a parameter such as tubing anchor, stroke length, stroke rate, or pump diameter is immediately seen in the dynamically updated plots.