The Precise Description of Pumping Rod string and Tubing Movement and Computer Implementation

摘要

Discussed several common mathematical model on well force research field, and build a rod string motion law simulation system base on the model of finite element, which can directly display the movement rule of the pumping unit, the well trajectory, the axial movement of the rod string, the rule of the radial movement of the rod string, the contact pressure of the rod string and so on. And calculated ten production wells, verify the reliability of the simulation system.