›› 2009, Vol. 30 ›› Issue (4): 938-942.

• Fundamental Theroy and Experimental Research • Previous Articles     Next Articles

Experimental research on integrated mechanical model of PDC bit

LIANG Er-guo1，LI Zi-feng1，ZOU De-yong2   

  1. 1. Institute of Petroleum Engineering, Yanshan University, Qinhuangdao 066004, China; 2. College of Petroleum Engineering, China University of Petroleum, Dongying 257061, China
  • Received:2007-09-11 Online:2009-04-10 Published:2011-01-30

PDF (Chinese)

3119

Abstract:

The cutting tests on various rocks were carried out using PDC cutters with simulating the shape of cutter section, the worn state of cutter and the state of lapping cutting. The factors, which include cutting area, contact arc length, back rake angle, rock strength against drilling and worn height of cutter, on the forces on PDC cutter were analyzed. Under a constant cutting area, the force on cutter changes with radian coefficient by the relationship of linear, rock strength against drilling by the relationship of power function, and worn height coefficient by the relationship of exponential function. It is found that the force on PDC cutter is the minimum when back rake is about 5-10 degrees. The conceptions of radian coefficient and worn height coefficient were introduced. Based on them, the general mechanical model of PDC cutter is built. Using balance equation of force, the integrated mechanical model of PDC bit is built for force calculation, which offers theoretical basis for bit design optimization and reasonable use.

Key words: PDC cutter, cutting area, arc length coefficient, worn height coefficient, mechanical model

CLC Number: 

  • TE 21
[1] CHOU Ya-ling, HUANG Shou-yang, SUN Li-yuan, WANG Li-jie, YUE Guo-dong, CAO Wei, SHENG Yu, . Mechanical model of chlorine salinized soil-steel block interface based on freezing and thawing [J]. Rock and Soil Mechanics, 2019, 40(S1): 41-52.
[2] WU Guan-ye, ZHENG Hui-feng, XU Jian-rong. Model test study of stability and failure mechanism of three-dimensional complicated block system slope with deeply reinforcement [J]. Rock and Soil Mechanics, 2019, 40(6): 2369-2378.
[3] HE Gui-cheng, LIAO Jia-hai, LI Feng-xiong, WANG Zhao, ZHANG Qiu-cai, ZHANG Zhi-jun. A coupled thermo- pore water-mechanical model for a weak interlayer in water saturated slope and its application [J]. Rock and Soil Mechanics, 2019, 40(5): 1663-1672.
[4] DING Xiao, GU Shuan-cheng, HE Hui, ZHANG Yu, . Force characteristic analysis of bolt under single and multiple bed separation [J]. Rock and Soil Mechanics, 2019, 40(11): 4299-4305.
[5] LIU Yang-hui, HU Xiang-dong, . Mechanical analysis of frozen soil wall of vertical mine in unloading state [J]. Rock and Soil Mechanics, 2018, 39(S2): 344-350.
[6] GAO Qiang, ZHANG Qiang-yong, ZHANG Xu-tao, XIANG Wen，. Zonal disintegration mechanism analysis based on strain gradient of deep surrounding rock mass under dynamic unloading effect [J]. , 2018, 39(9): 3181-3194.
[7] XIE Xue-bin, DENG Rong-ning, DONG Xian-jiu, YAN Ze-zheng,. Stability of goaf group system based on catastrophe theory and rheological theory [J]. , 2018, 39(6): 1963-1972.
[8] LUO Xian-qi, BI Jin-feng. Principle and engineering application of geomechanics magnetic model test [J]. , 2018, 39(1): 367-374.
[9] SONG Zi-heng, LIU Yao-ru, YANG Qiang, XU Jian-rong, HE Ming-jie, ZHANG Wei-di，. Research on asymmetry of high arch dam foundation and its improvement effect [J]. , 2017, 38(2): 507-516.
[10] WANG Kai, LI Shu-cai, ZHANG Qing-song, ZHANG Xiao, LI Li-ping, ZHANG Qian-qing, LIU Cong. Development and application of new similar materials of surrounding rock for a fluid-solid coupling model test [J]. , 2016, 37(9): 2521-2533.
[11] CHEN Deng-hong, HUA Xin-zhu, DUAN Ya-wei, CHENG Shi-xing,. Simulation of zonal tensile and compressive deformation and failure of surrounding rock in deep large deformation mining gateway [J]. , 2016, 37(9): 2654-2662.
[12] HU Shan-chao , ZHOU Hui , TAN Yun-liang , LI Zhen , YANG Fan-jie,. Hardening/softening mechanical model of marbles considering volumetric stress effect [J]. , 2016, 37(3): 647-654.
[13] LI Lang, WANG Ming-yang, FAN Peng-xian, CHENG Yi-hao, LI Zhi-zhong, JIANG Hai-ming. Development of loading and unloading apparatus for model test in deep underground engineering [J]. , 2016, 37(1): 297-304.
[14] YANG Pan, YANG Jun. Rainfall threshold surface for slopes stability considering antecedent rainfall [J]. , 2015, 36(S1): 169-174.
[15] CAO Shuai , DU Cui-feng , TAN Yu-ye , FU Jian-xin , . Mechanical model analysis of consolidated filling pillar using stage-delayed backfill in metal mines [J]. , 2015, 36(8): 2370-2376.
Viewed
Full text


Abstract

Cited
  Shared   
  Discussed   
[1] LI Kui, GAO Bo. Study of construction schemes for metro tunnel crossing river and bridge[J]. , 2010, 31(5): 1509 -1516 .
[2] YANG Bing, YANG Jun, CHANG Zai, GAN Hou-yi, SONG Er-xiang. 3-D granular simulation for compressibility of soil-aggregate mixture[J]. , 2010, 31(5): 1645 -1650 .
[3] YE Hai-lin, ZHENG Ying-ren, HUANG Run-qiu, DU Xiu-li, LI An-hong4, XU Jiang-bo. Study of application of strength reduction dynamic analysis method to aseismic design of anti-slide piles for landslide[J]. , 2010, 31(S1): 317 -323 .
[4] ZHANG Yu-min，SHENG Qian，ZHU Ze-qi，YANG Ji-hua. Some influence factors on displacement characteristics of cavern group under strong earthquake[J]. , 2010, 31(11): 3525 -3530 .
[5] Lü Xi-lin，HUANG Mao-song，QIAN Jian-gu. Strength of soils considering the influence of deformation bifurcation under true triaxial condition[J]. , 2011, 32(1): 21 -26 .
[6] ZHANG Chuan-qing，FENG Xia-ting，ZHOU Hui，HOU Jing，SU Guo-shao. Method of obtaining loss convergence displacement and its application to tunnel engineering[J]. , 2009, 30(4): 997 -1003 .
[7] ZHANG Zhi-pei, PENG Hui, RAO Xiao. Numerical simulation study of grouting diffusion process in soft soil foundation[J]. , 2011, 32(S1): 652 -0655 .
[8] WU Li-zhou , ZHANG Li-min , HUANG Run-qiu. Analytic solution to coupled seepage in layered unsaturated soils[J]. , 2011, 32(8): 2391 -2396 .
[9] LIU Run , WANG Xiu-yan , LIU Yue-hui , WANG Wu-gang. Thermal buckling analysis of submarine buried pipelines with isolated prop initial imperfection[J]. , 2011, 32(S2): 64 -69 .
[10] HU An-feng , CHEN Bo-lang , YING Hong-wei. Influences of constitutive models on overall stability analysis of deep excavations using strength reduction method[J]. , 2011, 32(S2): 592 -597 .
Copyright © Rock and Soil Mechanics, All Rights Reserved.
Tel: 027-87198484, 87199252, 87199253, 87198752　E-mail: ytlx@whrsm.ac.cn
Powered by Beijing Magtech Co. Ltd