Analysis and Evaluation of Vibration Reduction Performance Based on Structural Parameters of Vibration Reduction Tools

The current vibration reduction tools are limited in their performance due to insufficient optimization of structural parameter matching. To improve vibration reduction efficiency, this article focuses on the vibration problem of oil drilling drill string, and innovatively explores the synergistic matching relationship between key parameters such as stiffness, stroke, and diameter of vibration reduction tools and their impact on performance. The main innovation of this study lies in establishing a coupled dynamic model of drill string and vibration reduction tool, and quantitatively revealing the optimal parameter matching scheme by comparing it with vibration reduction tools under different structural parameters through numerical simulation. The experimental verification results show that the diameter of the vibration reduction tool has a small impact on the vibration reduction effect, and its design can depend on engineering adaptability; The combination of stiffness of 1.5kN/mm and stroke of 40 cm is the comprehensive balance point of vibration reduction performance. Compared with traditional vibration reduction tools with other structural parameters, the vibration reduction tool with this structural parameter can reduce drilling pressure fluctuations by up to 35% and axial force fluctuations by up to 25%. This parameter optimization strategy breaks through the limitations of existing designs and provides a direct and effective technical approach to significantly improve drilling efficiency and tool life.