吉林大学学报(工学版) ›› 2017, Vol. 47 ›› Issue (6): 1991-1998.doi: 10.13229/j.cnki.jdxbgxb201706043

• Orginal Article • Previous Articles    

Optimal design of new arc angle PDC drill bit for coal mining based on finite element method

SUN Rong-jun1, 2, GU Shuan-cheng1, JU Pei2, GAO Ke3   

  1. 1.Faculty of Architecture and Civil Engineering, Xi'an University of Science & Technology, Xi'an 710054, China;
    2.Xi'an Research Institute, China Coal Technology and Engineering Group Corp, Xi'an 710077, China;
    3.College of Construction Engineering, Jilin University, Changchun 130026, China
  • Received:2017-03-10 Online:2017-11-20 Published:2017-11-20

RICH HTML

0   

PDF (PC)

122

Abstract: In order to improve the efficiency of hard formation drilling of coal mine, a design concept of new arc angle Polycrystalline Diamond Compact (PDC) drill bit is put forward by referring the design and processing concept of oil PDC bit. Taking Ø 113 mm arc angle PDC drill bit for example, the cutting structure and hydraulic structure of the PDC drill bit are designed using Finite Element Method (FEM). Simulation results show that, when the crown shape with inner cone angle 130° and outer taper arc radius 20 mm, the cutters with cutting angle -15° and inside angle 4°~ 6°, and using straight blade, the rock breaking efficiency of arc angle PDC drill bit is the best. In the same time, when the nozzle spray angle 22°~ 30°, and the azimuth angle working face near the cutter, the migration of cutting is the best. Based on the above research, ?113 mm arc angle PDC drill bit was produced. Field test shows that, the average bit life and drilling efficiency of the drill bit are 626 m and 25 m/h, respectively, which are increased by 4 times and one times compared with the ordinary concave PDC drill bit. Therefore, in the hard formation drilling process, the arc angle PDC drill bit can be used to improve drilling efficiency and reduce drilling cost.

Key words: drilling engineering, hard formation, arc angle polycrystalline diamond compact bit(PDC) drill, finite element methods(FEM), cutting structure, hydraulic structure

CLC Number: 

  • TE921
[1] 赵学社,唐胜利. 地质PDC无心钻头合理布齿的研究[J]. 西部探矿工程,1998(2):56-59.
Zhao Xue-she, Tang Sheng-li. Study of the reasonable cutter distribution of geological PDC bit[J]. West-China Exploration Engineering,1998(2):56-59.
[2] 王镇全. PDC钻头切削结构优化设计研究与应用[D]. 北京:中国石油大学(北京)石油工程学院,2009.
Wang Zhen-quan. Research on the optimizing design of the cutting structure of PDC bit and its application[D]. Beijing: College of Petroleum Engineering, China University of Petroleum,2009.
[3] 祝效华,刘云海,刘婷. 定向穿越扩孔钻进软硬夹层钻头振动特性研究[J]. 振动、测试与诊断,2016,36(5):915-921.
Zhu Xiao-hua, Liu Yun-hai, Liu Ting. Vibration characteristics analysis of reamer drilling in the soft and hard sandwiching[J]. Journal of Vibration, Measurement & Diagnosis,2016,36(5):915-921.
[4] Pryhorovska T O,Chaplinskiy S S,Kudriavtsev I O. 聚晶金刚石钻头切削齿切削岩块过程的有限元模拟[J]. 石油勘探与开发,2015,42(6):1-5.
Pryhorovska T O, Chaplinskiy S S, Kudriavtsev I O. Finite element modelling of rock mass cutting by cutters for PDC drill bits[J]. Petroleum Exploration and Development,2015,42(6):1-5.
[5] Feng Y, Arlanoglu C, Podnos E, et al. Finite-element studies of hoop-stress enhancement for wellbore strengthening[J]. SPE Drilling & Completion,2015,30(1):38-51.
[6] 李树盛,蔡静仑,马德坤. PDC钻头冠部设计的原理与方法[J]. 石油机械,1998,26(3):1-4.
Li Shu-sheng, Cai Jing-lun, Ma De-kun. Principle and method of PDC bit profile design[J]. Petroleum Machinery,1998,26(3):1-4.
[7] 邹德永,蔡环. 布齿参数对PDC钻头破岩效率影响的试验[J]. 中国石油大学学报:自然科学版,2009,33(5):76-79.
Zou De-yong, Cai Huan. Experiment on effect of cutter parameters of PDC bit[J]. Journal of China University of Petroleum(Edition of Natural Science),2009,33(5):76-79.
[8] 王镇全,周悦辉. PDC钻头切削齿切削角度对破岩效果影响规律的研究[J]. 煤矿机械,2009,30(8):49-51.
Wang Zhen-quan, Zhou Yue-hui. Study on rock breaking regulation in optimization cutting angle of PDC bit[J]. Coal Mine Machinery,2009,30(8):49-51.
[9] 邹德永,曹继飞,袁军,等. 硬地层PDC钻头切削齿尺寸及后倾角优化设计[J]. 石油钻探技术,2011,39(6):91-94.
Zou De-yong, Cao Ji-fei, Yuan Jun, et al. Optimization design of the cutter size and back rake for PDC bit in hard formation[J]. Petroleum Drilling Techniques,2011,39(6):91-94.
[10] Ju P, Zhai Y H, Wang Z Q, et al. Numerical simulation of polycrystalline diamond compact bit rock-breaking process based on smooth partcle hydrodynamic-finite element coupling method[J]. SOCAR Proceedings,2013(3):32-38.
[11] 李树盛,马德坤,侯季康. PDC切削齿工作角度的精确计算与分析[J]. 西南石油大学学报:自然科学版,1996,18(4):67-72.
Li Shu-sheng, Ma De-kun, Hou Ji-kang. Precise calculation and analysis of working angles of PDC cutters[J]. Journal of Southwest Petroleum University(Science & Technology Edition),1996,18(4):67-72.
[12] 韦忠良,温航. 适合柯柯亚区块的PDC钻头优化设计与现场应用[J].石油钻采工艺,2011,33(6):103-105.
Wei Zhong-liang, Wen Hang. Optimal design and field application of PDC bit in Kekeya block[J]. Oil Drilling & Production Technology,2011,33(6): 103-105.
[13] 张红梅,杨迎新,孙永吉. PDC钻头水力结构优化设计准则及方法探讨[J]. 钻采工艺,2013,36(3):74-77.
Zhang Hong-mei, Yang Ying-xin, Sun Yong-ji. Optimizing design criterion of PDC bit hydraulic structure[J]. Drilling & Production Technology,2013,36(3):74-77.
[14] 李敬彬,李根生,黄中伟,等. 新型旋转射流多孔喷嘴流场的分析[J]. 流体机械,2015,43(7):32-36.
Li Jing-bin, Li Gen-sheng, Huang Zhong-wei, et al. Flow field study on a new kind swirling multi-orifices nozzle[J].Fluid Machinery,2015,43(7):32-36.
[15] 黄红梅,翟应虎,王辉,等.实体PDC钻头流场数值模拟与实验验证[J].石油大学学报:自然科学版,2005,29(3):49-52.
Huang Hong-mei, Zhai Ying-hu, Wang Hui, et al. Numerical simulation and experimental checking for downhole flow field of a real PDC bit[J]. Journal of China University of Petroleum(Edition of Natural Science),2005,29(3):49-52.
[16] King I, Bratu C, Delbast B, et al. Hydraulic optimization of PDC bits[C]//European Petroleum Conference, The Hague, Netherlands,1990:20298.
[17] 管志川,陈庭根,刘希圣. PDC钻头井底液流分布特性的实验研究[J]. 石油大学学报:自然科学版,1996,20(3):24-28.
Guan Zhi-chuan, Chen Ting-gen, Liu Xi-sheng. Experimental study on the characteristics of fluid distribution at buttonhole of PDC bits[J]. Journal of China University of Petroleum(Edition of Natural Science),1996,20(3):24-28.
[18] 朱海燕,王锡洲,刘时英,等. PDC钻头水力学研究最新进展[J]. 石油钻采工艺,2009,31(5):23-28.
Zhu Hai-yan,Wang Xi-zhou,Liu Shi-ying,et al. The latest developments of hydraulics research on PDC bit[J]. Oil Drilling & Production Technology,2009,31(5):23-28.
[19] 张云,沈忠厚. 喷射钻井射流冲击力实验研究[J]. 石油钻采工艺,1991(2):1-6.
Zhang Yun, Shen Zhong-hou. Experiment study of jet drilling jet impact[J]. Oil Drilling & Production Technology,1991(2):1-6.
[1] SUN You-hong, LIU Da-jun, GAO Ke, XIE Xiao-bo, MA Yin-long, GAO Jun-hui. Development of coupling bionics impregnated diamond bit [J]. 吉林大学学报(工学版), 2013, 43(06): 1566-1573.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
No Suggested Reading articles found!
Copyright © Journal of Jilin University(Engineering and Technology Edition), All Rights Reserved.
Tel: +86-431-85095297　Fax: +86-431-85094074　E-mail: xbgxb@jlu.edu.cn
Powered by Beijing Magtech Co. Ltd