Paper: Sucker Rod Pumping System Analysis Utilizing Portable Data Units and Remote Analysis Using Microprocessor Controller Units

Reduction of preventable problems inherent in beam pumping systems can be achieved by continuous monitoring of system loads with electronic equipment and software systems developed by Delta-X Corporation. Electronic monitoring equipment was developed for permanent installation on electric prime mover driven beam pumping units. This equipment provides instantaneous polish rod load versus stroke position data. The equipment's self-monitoring mode allows the pumpoff controller (DXI-30) to interpret polish rod load versus displacement and make a logic decision to shut the well down for a predetermined time when a pumped-off condition is detected. Rod parts and other major downhole problems are also detected and result in setting of an alarm and shutting down the unit until visually inspected and manually restarted. Interfacing capacity is designed into the system to allow plotting load versus position data with a dynamometer or the storing of such data, for later retrieval, in an electronic memory card. These data may be later recalled, using a computer program, to recreate a dynamometer card shape, calculate gearbox torque, and/or a downhole pump card. Introduction of the new DXI-40 microprocessor controller with a communication system allows remote access to all load data. System control can also be effected from a remote location.