Development of Software for Optimizing the Working Parameters of Pumping Wells Through Multi-index Sorting
In response to the problems of insufficient integration and inconvenient use of the original software for working parameters of pumping wells with actual oil production,a series of technical breakthroughs have been car-ried out to develop a"multi index sorting and optimization software for working parameters of pumping wells".Firstly,a reliable design idea of optimal pumping well working parameters is established,which takes the fluid production index as the main indicator and the downhole efficiency as the auxiliary indicator.Secondly,a system algorithm with liquid production calculation as the core is established.The engineering calculation methods and empirical formulas are used to establish the relationship between the liquid supply and the liquid discharge volume through the submergence pressure of the oil pump,the discharge volume that is close to the supply volume is used as the production volume,and then the downhole efficiency,polished rod load,and pumping rod load rate are cal-culated.The advantageous liquid production,downhole efficiency,corresponding indicators,and pump depth for all combinations of pump diameter,stroke,and stroke times are output in a list,and the relationship between all in-dicators and downhole efficiency is output in a curve.After sorting and comparison,the stable and reliable work-ing parameter combination with all the dominant indicators can be selected,and finally the"full combination,multi-index"pumping well working parameter optimization design software is developed.Since its application in 2017,this software has guided parameter adjustment for an average of 130 wells per year,resulting in an average increase of 63.54 tons of crude oil per well and a 3.2 percentage point improvement in downhole efficiency.
pumping wellparameter optimizationliquid quantitydownhole efficiencysubmergence pres-surepolished rod loadsucker rod utilization rate
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