| The subject comes from engineering practice field for the current prevalence of sucker rod pumping wells eccentric wear problems,and using rotating rod technology is one way to reduce side wear,this paper intends to carry out in-depth rod rotation minus mill-related technical issues.Purpose and significance topics:In production engineering rod pumping is the world’s petroleum industry is one of the traditional way of oil so far in the production engineering has been the dominant artificial lift methods,in our various fields of oil exploration in an important position.Actual production wells pumping more prominent side wear phenomena,partial wear phenomenon has drawn increasing attention oilfield workers on how to solve the problem of partial wear governance wells research is also increasing.Oilfield produced fluid water content increased year by year,to keep the fluid production,deepening the pump setting depth,resulting in compression rod bent rod tube wells eccentric wear more and more,more and more serious side wear.In recent years,with the increased difficulty of oil exploration,the use of polymer flooding technology in order to improve the recovery of the important means.Polymer technology to be applied in many fields,oil production rates improved but also accompanied by rod partial abrasion problems,mainly due to increased production liquid viscoelastic,sucker rod in the downstream process of the resistance becomes large,sucker rod pump tubing deformation and partial wear phenomena occur.Since the existence of the phenomenon of partial wear,sucker rod broken,off phenomenon emerging,significantly increased the number of wells overhaul,shortening exemption period.While the other side wear easily lead to accidents,affecting the normal order of production oilfield.From the field of empirical and theoretical studies,the side wear phenomenon occurs mainly in sucker rod or a point on one side,severe knot connecting rod can basically wear failure hoop parts,connections can not play the role of thread badly worn.Oil stick on touch rotating device in conducting research using donkey driven rotator head touching way,and touch on the rotator design calculation,design safe and reliable rod rotation device. |