Numerical Simulation of Rock Breaking Mechanism for Compound Percussion Drilling

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

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.

Key words: heterogeneity formation, compound percussion, rock breaking mechanism, PDC(Polycrystalline Diamond Compact bit), impact frequency

CLC Number:

TE31

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.

References

[1] 李玮, 闫铁, 张志超, 等. 高频振动钻具冲击下岩石响应机理及破岩试验分析[J]. 石油钻探技术, 2013(6): 25-28.
Li Wei, Yan Tie, Zhang Zhichao, et al.Rock response mechanism and rock breaking test analysis for impact of high frequency vibratory drilling tool[J]. Oil Drilling Technology, 2013(6): 25-28.
[2] 景英华, 袁鑫伟, 姜磊, 等. 高速旋转冲击钻井破岩数值模拟及现场实验[J]. 中国石油大学学报(自然科学版), 2019, 43(1): 75-80.
Jing Yinghua, Yuan Xinwei, Jiang lei, et al. Numerical simulation and field experiment study on rock breaking in high speed rotating percussion drilling[J]. Journal of China University of Petroleum (Natural Science Edition), 2019, 43(1): 75-80.
[3] 李思琪, 李玮, 闫铁, 等. 复合载荷作用下钻头冲击破岩机理研究及现场应用[J]. 振动与冲击, 2017, 36(16): 51-55.
Li Siqi, Li Wei, Yan Tie, et al.A study on the rock breaking mechanism of drill bits under combined loads and field applications[J]. Journal of Vibration and Shock, 2017, 36(16): 51-55.
[4] 柳贡慧, 李玉梅, 李军, 等. 复合冲击破岩钻井新技术[J]. 石油钻探技术, 2016, 44(5): 10-15.
Liu Gonghui, Li Yumei, Li Jun, et al.New technology with composite Percussion Dilling and rock breaking[J]. Petroleum Drilling Techniques, 2016, 44(5):10-15.
[5] 付传红, 陈志强, 贺勇, 等. 新型扭振冲击工具的结构设计与工作特性分析[J]. 石油机械, 2017, 45(11): 7-11.
Fu Chuanhong, Chen Zhiqiang, He Yong, et al.Structural Design and Performance Analysis of Novel Torsional Impact Tool[J]. China Petroleum Machinery, 2017, 45(11): 7-11.
[6] 穆总结, 李根生, 黄中伟, 等. 轴扭耦合冲击钻井技术研究[J]. 石油机械, 2018, 46(10): 12-17.
Mu Zongjie, Li Gensheng, Huang Zhongwei, et al.Research on Axial-torsional Coupling Percussion Drilling Technology[J]. China Petroleum Machinery, 2018, 46(10): 12-17.
[7] 王德余, 李根生, 史怀忠, 等. 高效破岩新方法进展与应用[J]. 石油机械, 2012, 40(6): 1-6.
Wang Deyu, Li Gensheng, Shi Huaizhong, et al.Progress and application of new methods for efficient rock breaking[J]. China Petroleum Machinery, 2012, 40(6): 1-6.
[8] 张林强, 赵俊, 王鹏, 等. 三维振动冲击器钻井提速工具研制与现场试验[J]. 石油机械, 2017, 45(5): 61-65.
Zhang Linqiang, Zhao jun, Wang Peng, et al. Development and field test of 3D vibration impactor[J]. China Petroleum Machinery, 2017, 45(5): 61-65.
[9] 黄家根, 汪海阁, 纪国栋, 等. 超声波高频旋冲钻井技术破岩机理研究[J]. 石油钻探技术, 2018, 46(4): 23-29.
Huang Jiagen, Wang Haige, Ji Guodong, et al.The rock breaking mechanism of ultrasonic high frequency rotary-percussive drilling technology[J]. Petroleum Drilling Technique, 2018, 46(4): 23-29.
[10] 董学成, 熊继有, 王国华, 等. 振荡冲击器破岩机理数值模拟分析[J]. 西南石油大学学报(自然科学版), 2014, 36(6): 160-167.
Dong Xuecheng, Xiong Jiyou, Wang Guohua, et al.Numerical Simulation Analysis of Rock Breaking Mechanism for Oscillating Impacter[J]. Journal of Southwest Petroleum University (Science& Technology Editon), 2014, 36(6): 160-167.
[11] 贾红军, 王攀, 冯伟雄, 等. 深井硬岩地层钻井高频低幅扭转振荡耦合冲击器研制与应用[J]. 特种油气藏, 2018, 25(4): 158-163.
Jia Hongjun, Wang Pan, Feng Weixiong, et al.Development and application of high-frequency low-torque impactor with torsion-oscillation coupling for drilling deep and hard formations[J]. Special Oil & Gas Reservoir, 2018, 25(4): 158-163.
[12] 李玮, 李兵, 李卓伦, 等. 脉冲式振动破岩工具设计及模拟分析[J]. 中国煤炭地质, 2018, 30(9): 56-61.
Li Wei, Li Bing, Li Zhuolun, et al.Impulse Type Vibratory Rock Breaking Tool Design and Simulation Analysis[J]. Coal Geology of China, 2018, 30(9): 56-61.