Design And Simulation Research On A New Type Of Workover Operation Hoisting System

In this paper, based on full investigate and analysis the progress of workover operation, full investigate and analysis kinds of home and aboard workover and drilling mechanical automation technology. A system scheme that can better realize drag pipe, feeding pipe, emission pipe, grasp pipe, right pipe, center pipe, make up and breakout pipe by mechanical automation was put forward. This system was named as new type of workover operation mechanical system, the system main consist of integrated hydraulic tong system and new type of workover operation hoisting system.The designation and theoretical research of the new type workover operation hoisting system, and the simulation research work of its virtual prototype are the main works in this paper. The detailed and reasonable designation of all component parts of the new type workover operation hoisting system were completed, the 3 d solid model of whole system was created by SolidWorks software. By using of ADAMS kinematics and kinetics theories, the displacement, velocity and acceleration equations of the elevator were derived; the anti-vice equation of ring's revolute pair and hydraulic cylinder thrust force equation were obtained. The inverse dynamics analysis of righting hand pushing pipeline systems was completed, the kinetic equations of the system and righting hand hydraulic cylinder analytical expression were obtained by using equivalent dynamic model.Four 3 d solid models that used in simulation analysis were created, the modified models were introduced into ADAMS by COSMOS/Motion plug-in. At first, the dynamic simulation of the progress of pushing oil tube by righting hand and swinging out of rings-elevator were done, the designation of hydraulic system guided by the simulation results. Then based on the different motion of composition parts of the new type workover operation mechanical system, hydraulic circuit was created by ADAMS/Hydraulics module, the mechanical-hydraulic co-simulation of the progress of the swinging out of righting hand, the pushing oil tube by righting hand and the swinging out of rings-elevator were completed respectively, various dynamic characteristics of the composition parts were obtained, hydraulic system parameters were found, which is beneficial to the work of composition parts, and provided theoretical basis for selection of practical hydraulic component, the debugging and texting time of practical hydraulic system were shortened.The mechanical-hydraulic co-simulations were completed, including the process of contact-impact between oil tube and righting hand that in state of swinging out completely, the process of contact-impact between the oil tube and righting hand during they are swing to the wellhead, simulated and analyzed the influence of the materials of supporting part of righting hand, the weight of oil tube and the opening size of throttle valve on the process of contact-impact, according to the results of simulation analysis, the smaller contact-impact force, the smaller spring back amplitude, the less contact-impact times produced during the two process of contact-impact, when the material of the supporting part is rubber and the opening size of the throttle valve is small.