西南石油大学学报(自然科学版)

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Simulation Analysis of the Motion Law of Standing Valve Ball
of the Rod Pump

Wan Guoqiang1, Yu Dachuan2   

  1. 1. Dynamic Exploration and Development Co. Ltd,Shengli Oilfield,SINOPEC,Dongying,Shandong 257051,China
    2. Hekou Oil Production Plant,Shengli Oilfield,SINOPEC,Dongying,Shandong 257100,China
  • Online:2013-08-01 Published:2013-08-01

Abstract:

In the process of sucker rod pump flow into the pump,the motion law of intake valve ball is one of the dominant
factors impacted on the opening degrees,the fluid rate of pass through vale and the time of fluid into the pump. How to describe
the law of motion of the standing valve ball and opening degrees in detail is a very important issue. Considering the shortcomings
of valve ball mechanical analysis and solution process in conventional standing valve ball motion law model,and the effect of
the stage to turn on and off of valve on the valve ball movement,the model of standing valve ball motion law is established to
simulate the impact of different factors on the law of motion of the valve ball. The opening degrees and the turning on and off
stage hysteresis are detailed and computationally analyzed.

Key words: sucker rod pump, standing valve, motion law of standing valve ball, mechanical analysis of valve ball, mathematical
model