Abstract
Based on the actual workover operating conditions, this paper designs a workover operating machine for lifting and running tubing at the wellhead, and use SolidWorks to draw a three-dimensional model of the workover rig, through ANSYS Workbench, the main component of the workover rig is analyzed for the force under load. According to the results of static analysis and modal analysis, it is concluded that the main stress parts of the workover derrick are on the two uprights where the robot arm is installed, and the upper part of the workover derrick is most prone to resonance, after multi-objective optimization of the workover derrick, the deformation and the maximum stress of the workover derrick have been reduced by 9.5% and 9.8%, respectively. This research content provides a reference for the design of workover rigs in the future.
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