Research On Automatic Control Technology For Electric Submersible Pump

Reasonable operation has particularly big impact on its energy consumption,the operating life will be severely affected operation once far away from the ideal operation interval.Electric submersible pump running state of real-time monitoring and real-time adjustment of parameters are the key technology of ensuring ESP reasonable operating.At present the ESP operating monitoring and parameter adjustment mainly adopt the artificial means,because of technology conditions,real-time performance is poorer,and it is difficult to guarantee the real-time reasonable operation,not only affect the cost of production and but also the oil production.According to the disadvantages of the current ESP production system,this paper studies these technologies including the underground monitoring and intelligent control.The fuzzy control strategy is introduced,this paper proposes a fuzzy control algorithm about ESP speed control,and completed design the fuzzy controller.A downhole monitoring system is developed that includes the downhole data acquisition unit and ground data processing unit.This system can realize four parameters real-time monitoring including the pump inlet pressure,pump outlet pressure,pump inlet temperature and motor working temperature.Developed a remote monitoring system and a touch screen monitor system are both developed,they can realize the remote monitoring of ESP and data management and on-site monitoring and data management separately.The whole system operation is stable and reliable proved by experiment and site test.The new technology improve the system efficiency,prolong the pump running life and realize the automatic control of production system of ESP.