Derrick System Design And Analysis Of Vshicle Mounted Pressure Balancing Workover Rig

Workover rig is an indispensable essential equipment in various fields applied in lifting tubing and Replacement of downhole equipment, it is play an important role to improve economic efficiency and increase the oil production in our country.cause of workover rig most of used in wicked enviroment, include the desert and forest,ect. derrick system Is the main bearing parts of the workover rig.so, the design should ensure as far as possible perfect. It is not only reduce the waste of materials, but also avoid the happening of the accident to the greatest extent. Therefore,we must analysis the derrick system comprehensive, accurate and detailed, to find out weak links of derrick system through analysis and strengthen targeted. Ensure construction safety.Through fully analysis of the workover rig design and use information at home and abroad, improve the original workover rig derrick system. This paper proposes a new design scheme of vehicle mounted pressure balancing workover rig.And 3d mathematical model is established. The finite element method is used to analyse the key parts of the derrick system.Include support shaft of derrick system,The contact area of derrick translation system. Through the analysis to verify the feasibility of derrick system design scheme, provide a basis for optimal design of derrick system.This paper not only privide the statics analysis of the derrick system, but switching process of the derrick system dynamics simulation analyzed. The stress distribution in the turn process of derrick system is reproduced.,Some key data are obtained, derrick system security and reliability is validated in the process of turning, it is make the mechanics analysis of derrick system more comprehensive.