J Robinson and JS Campbell, Kepler Engineering Software Ltd.
Design and analysis of sucker rod systems in deviated wells has challenged industry practitioners. Historical adaptations of the wave equation solution struggle with 3-dimensional wellbore trajectories and other system complexities. A unique finite element model, embodied in an easy-to-use software, simulates rod-dynamics in 3 dimensions. The model can predict or analyze motion of the rod string at any location in the well. Frictional forces and buckling tendencies are also simulated. This advanced computer software also provides a sophisticated, interactive visualization of simulation results. Through superior modeling, sucker rod system design and operating parameters can be optimized to reduce mechanical wear and component failures.