Analysis Of Oil Well Thermal Washing Process And Research On Simulation Technology

In the process of oil production, there are problems of the inner wall of oil pipe and the outer wall of sucker rod in the process of oil production. There are a series of hazards in the process of oil production. Heat washing can effectively control the hazard of paraffin wax. How to fine management of hot washing work, the thermal analysis of the process of washing and Simulation of the effect of the thermal washing is the theme of this paper.The research is based on quantity of flushing intrusion heat washing fine management and operation. This paper analyzes the flushing process of oil well dynamic liquid level change rules, and according to the dynamic variation of liquid level in oil well was established intrusion volume calculation model to determine the any time total intrusion volume and determine the well washing intrusion volume help to study the changes of liquid level and oil water interface, to study well washing recovery period lay the foundation.Analysis of the impact of well washing recovery of a variety of factors, establish well washing recovery period dynamic calculation model of liquid, and establish well washing recovery calculation model of oil water interface, according to the model, can calculate well washing recovery period of time. The model established for hollow sucker rod heat wash water injection process analysis and provide the basis for calculation. Through the analysis and calculation of hollow sucker rod heat washing flooding for the process to establish a hot wash at different stages of temperature field model, so as to establish a hollow sucker rod heat wash time calculation model. Will wash well fluid flow and temperature as the design variables, to wash well cost minimum for the purpose of optimizing washing parameters, will wash well pump Xu with pressure as constraint conditions, to establish the hollow sucker rod heat cleaning process parameters optimization model and optimization algorithm. According to the established mathematical model, the analysis and effect simulation system software of oil well thermal washing process is developed, and its accuracy and practicability are determined by experiments. The simulation software can optimize the parameters of each phase, and give reasonable suggestion, shorten the period of hot washing, strengthen the effect of thermal washing, reduce the energy consumption and cost.