The Research On The Running State Supervise Of The Sucker Rod Pumping System

The pump of sucker rod pumping oil system can work under kilometers of wall. Pumping oil system can bring one and more random and uncertain failures when it is working. When these failures affect chronically the system, the system isn't only incapable of out of oil, but is discard as useless. So the sucker rod pumping oil system must be supervised on real time.Indicator diagram is a effective method in inspecting oil pump. It can contain much information which is important basic data for failures diagnosis about the work situation of sucker rod pumping oil system . Though analyzing the indicator diagram of pump, we can estimate the affection caused by sand and wax and gas and the failures such as leakage of pump and pipe pole and pump oil rod broke and block pump.Gibbs wave equation is basic differential equation for describing pump oil rod movement and stress spread. In the paper, I analyze the Gibbs wave equation and many parameters of pump indicator diagram formula is calculated based on the Gibbs wave equation and ground indicator diagram and the parameters of oil well. Data gathering circuit is designed to measure ground indicator diagram and BP neural network intelligent diagnose the failures for pump indicator diagramintroduction mainly narrate the development of failure diagnosis technique in the field of sucker rod pumping system. The second chapter narrate the work principle and the character of indicator diagram in sucker rod pumping system. The third chapter narrate hardware data collection circuit diagram design. The fourth chapter narrate the deduce of Gibbs wave equation. The fifth chapter narrate the principle of BP neural network which is applied in sucker rod pumping system. The last chapter narrate the paper conclusion and prospect.