HYBRID PRIME MOTIVATOR FOR ROD PUMP HYDRAULIC SURFACE UNIT

摘要

A hybrid prime motivator system for a hydraulic surface unit of a rod pump for an oil well or gas well which incorporates a positive displacement hydraulic pump having hydraulic fluid flow control capability, a motor-generator mechanically coupled to the positive displacement hydraulic pump, a hybrid energy system electrically connected to the motor-generator, the hybrid energy system having an energy supply capability for supplying energy to the motor-generator during a rod pump up stroke, an energy receiving capability for receiving and storing energy generated by the motor-generator during a rod pump down stroke, and a replacement energy generating capability for generating replacement energy to replace energy lost during successive rod pump cycles, and a hybrid motivator control module.