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CN 34-1054/N

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Research on longitudinal vibration and rock breaking characteristics of rotary cutting drill bits

  • 1.

    School of Mechatronic Engineering, Southwest Petroleum University, Chengdu 610500, China

  • 2.

    School of Mechanical Engineering, Southwest Jiaotong University, Chengdu 610031, China

Cite this:
https://doi.org/10.3969/j.issn.0253-2778.2015.06.008
  • Received Date: 21 December 2014
  • Accepted Date: 10 April 2015
  • Rev Recd Date: 10 April 2015
  • Publish Date: 30 June 2015
    Abstract

  • Abstract

    Aiming at the rock-breaking problems of drill bits and characteristics of bottom hole model, a new type of drill bit that breaks rock with rotary-cutting motion was proposed. Based on the structure and the kinematics principles of rotary-cutting drill bit, its dynamics was analyzed, and the vibration displacement and speed of the cutter on different gear rings were obtained by establishing the vibration equation of the cutters. After that, rock-breaking properties of the rotary-cutting drill bit were researched. On the basis of an analysis model for the rock-breaking characteristics of the cutters on different gear rings, the cutters impact force, shear force and rock-breaking volume were obtained and compared. The results showed that compared with the existing drilling technology, the rotary-cutting drill bit breaks rock with shock and shear together and the largest gear ring through the center, which can improve the rock-breaking efficiency of the drill bit center effectively; the bottom hole model is tornado-like which can make all gear rings cut the wall and achieve bit gauge function in the rock-breaking process. At the same time, the analysis model can also be used for other types of bits like composite drill bits by changing corresponding parameters.

    Abstract

    Aiming at the rock-breaking problems of drill bits and characteristics of bottom hole model, a new type of drill bit that breaks rock with rotary-cutting motion was proposed. Based on the structure and the kinematics principles of rotary-cutting drill bit, its dynamics was analyzed, and the vibration displacement and speed of the cutter on different gear rings were obtained by establishing the vibration equation of the cutters. After that, rock-breaking properties of the rotary-cutting drill bit were researched. On the basis of an analysis model for the rock-breaking characteristics of the cutters on different gear rings, the cutters impact force, shear force and rock-breaking volume were obtained and compared. The results showed that compared with the existing drilling technology, the rotary-cutting drill bit breaks rock with shock and shear together and the largest gear ring through the center, which can improve the rock-breaking efficiency of the drill bit center effectively; the bottom hole model is tornado-like which can make all gear rings cut the wall and achieve bit gauge function in the rock-breaking process. At the same time, the analysis model can also be used for other types of bits like composite drill bits by changing corresponding parameters.
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    • References(16)
  • [1]
    Franca L F P. Drilling action of roller-cone bits: Modeling and experimental validation[J]. Journal of Energy Resources Technology, 2010, 132(4): 043101.
    [2]
    Yang Yingxin, Zhang Wenwei, Li Bin, et al. Effect evaluation on insert penetration to rock and optimization of insert shape[J]. Chinese Journal of Rock Mechanics and Engineering, 2001, 20(1): 110-113.
    杨迎新,张文卫,李斌,等. 牙齿破岩效率的评价及牙齿优选探讨[J]. 岩石力学与工程学报,2001,20(1): 110-113.
    [3]
    Wang Qingfeng, Zhu Caichao, Song Chaosheng, et al. Non-linear dynamic analysis of a roller cone bit-well rock system with rock-cone bit interaction[J]. Journal of Vibration and Shock, 2010, 29(10): 108-112.
    王清峰, 朱才朝, 宋朝省, 等. 牙轮钻头单牙轮的破岩仿真研究[J]. 振动与冲击, 2010, 29(10): 108-112.
    [4]
    Richard T, Detournay E. Influence of bit-rock interaction on stick-slip vibration of PDC bits[R]. SPE, 2006: SPE 77616.
    [5]
    Gradl C, Eustes A W, Thonhauser G. An analysis of noise characteristics of drill bits[J]. Journal of Energy Resources Technology, 2012, 134(1): 013103.
    [6]
    Hamade R F, Manthri S P, Pusavec F, et al. Compact core drilling in basalt rock using PCD tool inserts: Wear characteristics and cutting forces[J]. Journal of Materials Processing Technology, 2010, 210(10): 1 326-1 339.
    [7]
    Zhu Caichao, Xie Yongchun, Qin Datong, et al. Study on dynamic action of integrated drill string-bit system[J]. Chinese Journal of Mechanical Engineering, 2002, 38(2): 69-74.
    朱才朝, 谢永春, 秦大同, 等. 牙轮钻头纵向横向扭转振动动力学仿真研究[J]. 机械工程学报, 2002, 38(2): 69-74.
    [8]
    Yigit A S, Christoforou A P. Stick-slip and bit-bounce interaction in oil-well drillstrings[J]. Journal of Energy Resources Technology, 2006, 128(4): 268-274.
    [9]
    Richard T, Germay C, Detournay E. Self-excited stickslip oscillations of drill bits[J]. Comptes Rendus Mécanique, 2004, 332(8): 619-626.
    [10]
    Wang Minsheng, Li Zukui, Geng Yingchun, et al. Laboratory study on rock breaking mechanism and its application [J]. Rock and Soil Mechanics, 2008, 29(3): 711-716.
    王敏生,李祖奎，耿应春,等. 室内岩石破岩机制试验及应用研究[J]. 岩土力学, 2008,29(3):711-716.
    [11]
    Li Wei, Li Yanan, Chen Shichun, et al. Downhole drilling rate equation cone bits and field application[J]. Journal of China University of Petroleum (Edition of Natural Science), 2013,37(3): 74-77.
    李玮,李亚楠, 陈世春,等. 井底牙轮钻头的钻速方程及现场应用[J]. 中国石油大学学报（自然科学版）,2013,37(3): 74-77.
    [12]
    Zhu H Y, Deng J G, Xie Y H, et al. Rock mechanics characteristic of complex formation and faster drilling techniques in western South China Sea oilfields[J]. Ocean Engineering, 2012, 44: 33-45.
    [13]
    Deng Jingen, Zhu Haiyan, Xie Yuhong, et al. Rock mechanical properties and rock breaking mechanism of the complex formation of the western South China Sea oilfields [J]. Rock and Soil Mechanics, 2012, 33(7): 2 097-2 109.
    邓金根,朱海燕,谢玉洪,等. 南海西部海域难钻地层特征及破碎机制研究[J]. 岩土力学,2012,33(7):2 097-2 109.
    [14]
    Tian Jialin, Pang Xiaolin, Liang Zheng, et al. Kinematic features of a new drill bit of the tornado-like bottom-hole model [J]. Acta Petrolei Sinica, 2013, 34(6): 1163-1167.
    田家林，庞小林, 梁政, 等. 旋风状井底模型的新型钻头运动特性[J]. 石油学报, 2013, 34(6): 1163-1167.
    [15]
    Tian Jialin, Fu Chuanhong, Yang Lin, et al. Influence of the tooth-distributing angle of PDC bit on wear of composite plate under torsion vibration [J]. Chinese Journal of Solid Mechanics, 2014, 35(6): 574-582.
    田家林, 付传红, 杨琳, 等. 基于扭转振动的 PDC 钻头布齿角度对复合片磨损规律的影响研究[J]. 固体力学学报, 2014,35(6): 574-582.
    [16]
    Tian Jialin, Fu Chuanhong, Yang Lin, et al. Rock-breaking characteristics of a new PDC drill bit with modular tooth-distribution [J].Journal of China University of Petroleum (Edition of Natural Science), 2015,39 (1):136-141.
    田家林, 付传红, 杨琳, 等. 模块化布齿的新型PDC 钻头破岩特性[J]. 中国石油大学学报(自然科学版),2015,39(1): 136-141.
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    [1]
    Franca L F P. Drilling action of roller-cone bits: Modeling and experimental validation[J]. Journal of Energy Resources Technology, 2010, 132(4): 043101.
    [2]
    Yang Yingxin, Zhang Wenwei, Li Bin, et al. Effect evaluation on insert penetration to rock and optimization of insert shape[J]. Chinese Journal of Rock Mechanics and Engineering, 2001, 20(1): 110-113.
    杨迎新,张文卫,李斌,等. 牙齿破岩效率的评价及牙齿优选探讨[J]. 岩石力学与工程学报,2001,20(1): 110-113.
    [3]
    Wang Qingfeng, Zhu Caichao, Song Chaosheng, et al. Non-linear dynamic analysis of a roller cone bit-well rock system with rock-cone bit interaction[J]. Journal of Vibration and Shock, 2010, 29(10): 108-112.
    王清峰, 朱才朝, 宋朝省, 等. 牙轮钻头单牙轮的破岩仿真研究[J]. 振动与冲击, 2010, 29(10): 108-112.
    [4]
    Richard T, Detournay E. Influence of bit-rock interaction on stick-slip vibration of PDC bits[R]. SPE, 2006: SPE 77616.
    [5]
    Gradl C, Eustes A W, Thonhauser G. An analysis of noise characteristics of drill bits[J]. Journal of Energy Resources Technology, 2012, 134(1): 013103.
    [6]
    Hamade R F, Manthri S P, Pusavec F, et al. Compact core drilling in basalt rock using PCD tool inserts: Wear characteristics and cutting forces[J]. Journal of Materials Processing Technology, 2010, 210(10): 1 326-1 339.
    [7]
    Zhu Caichao, Xie Yongchun, Qin Datong, et al. Study on dynamic action of integrated drill string-bit system[J]. Chinese Journal of Mechanical Engineering, 2002, 38(2): 69-74.
    朱才朝, 谢永春, 秦大同, 等. 牙轮钻头纵向横向扭转振动动力学仿真研究[J]. 机械工程学报, 2002, 38(2): 69-74.
    [8]
    Yigit A S, Christoforou A P. Stick-slip and bit-bounce interaction in oil-well drillstrings[J]. Journal of Energy Resources Technology, 2006, 128(4): 268-274.
    [9]
    Richard T, Germay C, Detournay E. Self-excited stickslip oscillations of drill bits[J]. Comptes Rendus Mécanique, 2004, 332(8): 619-626.
    [10]
    Wang Minsheng, Li Zukui, Geng Yingchun, et al. Laboratory study on rock breaking mechanism and its application [J]. Rock and Soil Mechanics, 2008, 29(3): 711-716.
    王敏生,李祖奎，耿应春,等. 室内岩石破岩机制试验及应用研究[J]. 岩土力学, 2008,29(3):711-716.
    [11]
    Li Wei, Li Yanan, Chen Shichun, et al. Downhole drilling rate equation cone bits and field application[J]. Journal of China University of Petroleum (Edition of Natural Science), 2013,37(3): 74-77.
    李玮,李亚楠, 陈世春,等. 井底牙轮钻头的钻速方程及现场应用[J]. 中国石油大学学报（自然科学版）,2013,37(3): 74-77.
    [12]
    Zhu H Y, Deng J G, Xie Y H, et al. Rock mechanics characteristic of complex formation and faster drilling techniques in western South China Sea oilfields[J]. Ocean Engineering, 2012, 44: 33-45.
    [13]
    Deng Jingen, Zhu Haiyan, Xie Yuhong, et al. Rock mechanical properties and rock breaking mechanism of the complex formation of the western South China Sea oilfields [J]. Rock and Soil Mechanics, 2012, 33(7): 2 097-2 109.
    邓金根,朱海燕,谢玉洪,等. 南海西部海域难钻地层特征及破碎机制研究[J]. 岩土力学,2012,33(7):2 097-2 109.
    [14]
    Tian Jialin, Pang Xiaolin, Liang Zheng, et al. Kinematic features of a new drill bit of the tornado-like bottom-hole model [J]. Acta Petrolei Sinica, 2013, 34(6): 1163-1167.
    田家林，庞小林, 梁政, 等. 旋风状井底模型的新型钻头运动特性[J]. 石油学报, 2013, 34(6): 1163-1167.
    [15]
    Tian Jialin, Fu Chuanhong, Yang Lin, et al. Influence of the tooth-distributing angle of PDC bit on wear of composite plate under torsion vibration [J]. Chinese Journal of Solid Mechanics, 2014, 35(6): 574-582.
    田家林, 付传红, 杨琳, 等. 基于扭转振动的 PDC 钻头布齿角度对复合片磨损规律的影响研究[J]. 固体力学学报, 2014,35(6): 574-582.
    [16]
    Tian Jialin, Fu Chuanhong, Yang Lin, et al. Rock-breaking characteristics of a new PDC drill bit with modular tooth-distribution [J].Journal of China University of Petroleum (Edition of Natural Science), 2015,39 (1):136-141.
    田家林, 付传红, 杨琳, 等. 模块化布齿的新型PDC 钻头破岩特性[J]. 中国石油大学学报(自然科学版),2015,39(1): 136-141.
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