Study On The Optimization Of System Efficiency Of Low Yield Wells In Yushulin Oil Field

The system efficiency of pumping wells is an important index of oil production,not only reflects the pumping energy consumption status and economic benefits,but also a comprehensive reflection of the oilfield technology and equipment,technology and management level etc.The oil field belongs to low permeability oilfield,the reservoir is deep,the production fluid is low,the energy consumption of the system is high,and the system efficiency is low.In order to improve the efficiency of the system,especially in the last few years.The system efficiency evaluation is an important technical index for pumping energy level,establish the simulation evaluation method of extremum pumping system efficiency of an oil well pumping oil wells is the analysis of energy consumption status and energy saving potential and energy saving optimization theory foundation.The beam pumping system is a dynamic system with highly coupled electromechanical fluid dynamics.At present,the beam ground device of oil system is simplified as a single degree of freedom rigid component and based on the shortcomings of simulation model assuming the longitudinal vibration of sucker rod linear,based on in-depth study of ground unit dynamics simulation model,a general simulation model of beam pumping unit ground oil system with multi degree of freedom torsion the simulation model of vibration and longitudinal vibration of oil pumping rod.Based on the dynamic simulation of the system,the simulation model of instantaneous transmission efficiency of beam pumping unit is established.Based on the simulation model of the efficiency of the unit system,the simulation model of the system efficiency is established.Based on the simulation of computer dynamic wells pumping technology as the basis,using the node system analysis method,carry out research on the factors of pumping wells node energy consumption and system efficiency,to explore effective ways to improve the efficiency of the system,and provide guidance for Yushulin oilfield production design and optimization of low yield wells wells scheme,provides a scientific and quantitative the guidance for the future adoption of energy-saving machine work,has a strong theoretical value and practical significance.