COMPARATIVE ANALYSIS OF THE KINEMATIC RESPONSE OF DRILL BITS
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.
Keywords
Drill bit kinematics, roller-cone bits, PDC bits, rock-breaking mechanism, rock stress state, lithological heterogeneity
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).