COMPARATIVE ANALYSIS OF THE KINEMATIC RESPONSE OF DRILL BITS

Authors

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

Keywords:

Drill bit kinematics, roller-cone bits, PDC bits, rock-breaking mechanism, rock stress state, lithological heterogeneity

Abstract

This study presents a comparative analysis of the kinematic response of roller-cone and PDC drill bits to variations in weight on bit and rotational speed. Roller-cone bits exhibit a quasi-linear response governed by cyclic indentation and chipping of the teeth, whereas PDC bits demonstrate a nonlinear response associated with stress redistribution and a transition of the dominant rock-breaking mechanism. The influence of cutter geometry, rock stress state, and lithological heterogeneity on drilling efficiency and dynamic response is examined. The results provide a mechanistic basis for optimizing drilling parameters and bit designs under complex geological conditions.

Downloads

Download data is not yet available.

References

Huang, X., Chang, J., Li, C., Yang, W., Pang, J., Zou, J., & Zhang, Y. (2025). Experimental study on the rock breaking effect of different tooth shapes of inserted teeth in a hobbing-cone hybrid PDC bit under complex stress environment. Geoenergy Science and Engineering, 246, 213390.

Zhang, J., Cui, M., Wang, Q., Ren, H., Ji, G., Shao, F., ... & Yu, J. (2025). Experimental study on rock drilling vibration of PDC bit in interbedded formations. Geoenergy Science and Engineering, 244, 213452.

Yang, Y., Yang, Y., Song, D., Ren, H., Qiu, S., Xie, X., & Huang, Z. (2025). Study on rock-breaking mechanism of the vertical wheel PDC bits. Geoenergy Science and Engineering, 244, 213428.

Маткасимова, Ш. Ш. (2024, December). СРАВНИТЕЛЬНЫЙ АНАЛИЗ ЭФФЕКТИВНОСТИ СЕТКИ БУРЕНИЯ И ПРИМЕНЕНИЯ ДРОБИЛЬНОГО ОБОРУДОВАНИЯ ДЛЯ ОПТИМИЗАЦИИ ВСКРЫШНЫХ РАБОТ НА УГОЛЬНОМ МЕСТОРОЖДЕНИИ. In International Conference on Multidisciplinary Sciences and Educational Practices (pp. 235-239).

Маткасимова, Ш. Ш. К., Эшонкулов, К. Э. У., Тогаев, А. С. У., & Пардаев, А. Б. (2022). Технологические аспекты процесса бурения скважин трехшарошечными долотами в условиях разреза «АНГРЕНСКИЙ». Вестник науки и образования, (10-1 (130)), 38-45.

OpenAI (2025). ChatGPT (GPT-5) [Large Language model]. <https://chatgpt.com/chat /> [Электронный ресурс] - режим доступа - URL:https://openai.com/about/ (дата обращения: 30.12.2025).

Downloads

Published

2025-12-31

How to Cite

Matkasimova Sh.Sh. (2025). COMPARATIVE ANALYSIS OF THE KINEMATIC RESPONSE OF DRILL BITS. International Multidisciplinary Journal for Research & Development, 12(12), 1489–1492. Retrieved from https://www.ijmrd.in/index.php/imjrd/article/view/4635