Autonomous VSD Setpoint Optimization for Sucker Rod Artificially Lifted Oil and Gas Wells

Abstract

Utilizing a Variable Frequency Drive (VFD) is a more sophisticated method to allow operators to increase their runtime by detecting when there is less fluid to produce and slowing the unit down, accordingly. Optimizing VFD setpoints is not necessarily challenging, but in many cases requires many iterations of user intervention which takes time, and with the ever-changing nature of some reservoirs, that job may never be complete for a given well. By identifying issues like excessive cycling, lost production, unnecessary speed changes, and poor pump fillage, the algorithms implement changes that improve the performance of the well and help operators leverage the full capabilities of their VFD.