DYNAMICS OF ROLLER CONE AND PDC BITS UNDER KINEMATIC CHANGES

Authors

Matkasimova Sh.Sh. Almalyk state technical institute, Almalyk, Uzbekistan

Keywords:

roller cone bits, PDC bits, kinematics, vibrations, drilling, modeling

Abstract

This study investigates the dynamic response of roller cone and PDC bits under kinematic variations during drilling, including the effects of rotational speed, weight on bit, and cutter structure on vibrations and torsional oscillations. Experimental tests and finite element modeling were used to analyze the drill string–bit–rock system dynamics. Results demonstrate differences in bit behavior under changing drilling conditions and confirm that kinematic changes significantly affect rock-breaking efficiency and tool lifespan. The findings enhance understanding of vibration mechanisms and support the optimization of drilling parameters.

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References

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Published

2025-12-30

How to Cite

Matkasimova Sh.Sh. (2025). DYNAMICS OF ROLLER CONE AND PDC BITS UNDER KINEMATIC CHANGES. International Multidisciplinary Journal for Research & Development, 12(12), 1496–1500. Retrieved from https://ijmrd.in/index.php/imjrd/article/view/4637