Optimal Design Technology To Prevent Eccentric Attrition In Pumping Unit Wells

By analyzing eccentric attrition of pumping well, on the basis of nodal analysis of overall pumping well system, by researching inflow performance relationship, multiphase piping flow in wellbore, parametric properties of oil-gas-water, well track, complexity of suck rod string and sliding friction force for suck rod with tube, thus furmulea is established for dynamics relation to pumping well rod with tube, formation optimal design mathematical model suitable to prevent eccentric attrition in pumping unit wells, design soft is compiled.The working principle and the design electric circuit of the surface dynamometer is analysed, Passing Calculated result is bascially matched with that of actual well conditions.