This paper introduces an intelligent and energy-saving united pump station working in a steel plant,where inverters and the PLC are used to obtain more economic profit.

Energy saving and consumption cut-down at a combined station in later stage of oil field production;

According to the technological characteristic of oilwater separation in combined stations, a dynamic model of oilwater separation is estiblished.

A suit of safety assessment system which fits for the combined station is established on the basis of consulting the research results of safety assessment at home and abroad, according to the practical production character of ZhongYi combined station that there are many hazard property of combustible, explosive, leaky and filtering matters.

Testing and Analysising of Efficiency and Energy consumption in United Station in Gathering and Transfering System With Supper High-water-cut;

Based on the brief analysis of workplace and working medium of united station in oil extraction plant,some safety control measures for workplace and working medium are proposed.

In order to confirm numeric model of controlling system for oil field united stations output,the paper use neural network to design the system controller and utilized a three large BP network to compose the PID controller,which solved the problem that the traditional PID adjuster is difficult to determine the parameters on line moment,and improve the effect to the system and the environment.