Research And Design Of Pumping Unit Intelligengt Monitoring System

Saving energy is the main problems to be solved in the actual production in oil field, thecurrent main energy saving measures includes star-triangle transformation variable-voltageenergy saving, variable frequency speed adjusting energy saving and Inter-extract controlenergy saving, which Inter-extract control method of energy saving in oil field is widely usedin the actual production, but workers usually use manual way to start and stop pumping unit,which is not only low accuracy but also increases the labor intensity of workers and affectsthe production of oil. In order to prevent the occurrence of "Empty Pump", save energy andimprove production efficiency. This article uses the wireless communication technology,automation technology and sensor technology to design a set of intelligent monitoring systemto realize real-time remote monitoring.Intelligent monitoring system of pumping unit consists of a single controller, a wirelessdata transmission system and monitoring center. Single controller is mainly used forautomatic optimization Inter-extract control over oil well, it take LPC2138ARM as the maincontrol chip, determines the "Empty Pump" by the measurement of power factor ofpumping unit, and then using the "Hill climbing" to optimize start-stop time of pumping unit,so as to realize the intelligent control. A wireless data transmission network is mainly used fortransmission of information between monitoring center and a single controller, it takes theform of two-level network for network communication, uses RF905SE module for transferingnear-distance data in the well group, at the same time, it uses GPRS module to complete longdistance transmission between wells and monitoring center. Making interface of variousparameters of oil well by VC++6.0. Test implementation of intelligent Inter-extract control byfitting indicator diagram of pumping unit in the monitor interface.Through an experiment of this system in oil field, pumping unit runs in good condition, remote transmission of data is accuracy and reliability, achieving the goals of savingelectricity and reducing the mining cost.