Abstract: Described are methods, systems, and computer readable media for adjusting the speed control of a pump assembly. The method can include the steps of setting the speed of a first stroke of the pump assembly to a first value and setting the speed of a second stroke of the pump assembly to a second value, modifying the speed of the first stroke while the pump is engaged in an upstroke, and modifying the speed of the second stroke while the pump is engaged in a downstroke through manual or automatic configuration processes. The computer readable medium can include an application that can be adapted to execute instructions that can configure the upstrokes and downstroke of the pump. Through these automatic or manual configuration parameters, a linear pump can execute fully configurable multiple speed settings within a stroke on the pump assembly, thus increasing the pump's efficiency irrespective of pump fillage.

Abstract: Rod Float Mitigation (RFM) methods for rod-pumped oil wells having a variable frequency drive which controls the speed of the motor for the pump. Each method monitors rod loads or a similar condition and takes action only when rod load drops below a predefined minimum load. A first method reduces the speed of the motor to a preset level. A second method fixes the torque level on the pump downstroke by adjusting motor speed based on a calculated gearbox torque compared to a programmed fixed limit. Another method includes a program in the variable frequency drive which includes a preferred RFM Torque Curve for the pump to follow on its downstroke. When rod float occurs, the program monitors gearbox torque and adjusts the speed to follow the predetermined RFM Torque Curve thereby mitigating rod float with minimum decrease in production.

Abstract: Apparatus, methods and products for monitoring/controlling a reciprocating well producing hydrocarbons from a wellbore, which determine the surface card from a well operating characteristics, determine the downhole card, and display both at the same scale for position.