Numerical Simulation of Rock Breaking Mechanism for Compound Percussion Drilling

Authors

Yumei Li, 1. Beijing Key Laboratory of High Dynamic Navigation Technology, Beijing Information Science & Technology University, Beijing 100101, China; ;
Liwei Yu, 2. Engineering Research Institute of Petro China Xinjiang Oilfield Company, Karamay 834000, China;
Zhang Tao, 1. Beijing Key Laboratory of High Dynamic Navigation Technology, Beijing Information Science & Technology University, Beijing 100101, China; ;
Su Zhong, 1. Beijing Key Laboratory of High Dynamic Navigation Technology, Beijing Information Science & Technology University, Beijing 100101, China; ;
Jianming Liu, 1. Beijing Key Laboratory of High Dynamic Navigation Technology, Beijing Information Science & Technology University, Beijing 100101, China; ;

Abstract

Abstract: The ABAQUS dynamic impact module is used to establish the numerical calculation model for PDC single tooth-rock impact. The effects of PDC cutting teeth on the dynamic rock breaking mode and rock breaking effect under the combined action of rotating speed, drilling pressure, alternating impact torque and alternating impact force are studied. The study shows that the torsional impact mode is 39.28% higher than the rock breaking efficiency of the rotary impact, and the compound percussion mode is 27.79% higher than the rock breaking efficiency of the torsional impact. Under the same conditions of impact time, the rock surface shear force is S_composite>S_torque >S_swirl. The characteristic curve of the composite impact intrusion into the rock depth has a step-like characteristic. The study of the mechanism of the compound percussion drilling technology for rock breaking has laid a theoretical foundation for further development and optimization of the tools.

Recommended Citation

Li, Yumei; Yu, Liwei; Tao, Zhang; Zhong, Su; and Liu, Jianming (2019) "Numerical Simulation of Rock Breaking Mechanism for Compound Percussion Drilling," Journal of System Simulation: Vol. 31: Iss. 11, Article 33.
DOI: 10.16182/j.issn1004731x.joss.19-FZ0318
Available at: https://dc-china-simulation.researchcommons.org/journal/vol31/iss11/33

First Page

2471

Revised Date

2019-07-14

DOI Link

https://doi.org/10.16182/j.issn1004731x.joss.19-FZ0318

Last Page

2476

CLC

TE31

Recommended Citation

Li Yumei, Yu Liwei, Zhang Tao, Su Zhong, Liu Jianming. Numerical Simulation of Rock Breaking Mechanism for Compound Percussion Drilling[J]. Journal of System Simulation, 2019, 31(11): 2471-2476.

DOI

10.16182/j.issn1004731x.joss.19-FZ0318