基于随钻参数的岩石单轴抗压强度表征模型研究

doi:10.12068/j.issn.1005-3026.2023.08.014

摘要/Abstract

摘要： 凿岩过程中钻机工作参数的变化响应与岩石单轴抗压强度密切相关，为利用随钻响应快速表征岩石力学性质，使用自主搭建的随钻获取试验平台，选取了4种岩石，开展了一系列不同推力条件下的钻进试验，研究岩石单轴抗压强度与钻机工作参数之间的相关性.研究结果发现，推力随切削深度的变化率F_e、扭矩随切削深度的变化率T_e、钻头单位尺寸上法向力与切向力之比ζ与岩石单轴抗压强度正相关，且不受试验条件影响.在此基础上，基于随钻参数F_e和T_e是可以表征可钻性和机械比能的物理量，结合量纲分析，建立了以F_e和T_e为参数的岩石单轴抗压强度表征模型，并通过其他种类岩石的钻进数据初步验证了该模型的可靠性.为利用凿岩过程快速表征岩石单轴抗压强度提供了一种新方法.

关键词: 随钻获取；岩石可钻性；机械比能；岩石强度；钻进参数

Abstract: The uniaxial compressive strength (UCS) of rock is an important factor in drilling and blasting operations， and it is closely related to measurement while drilling (MWD) data. A series of rock drilling tests were carried out under different thrusts using a self-built MWD test platform to investigate the correlation between UCS and MWD data. The results show that slope of thrust and cutting depth (F_e)， the slope of torque and cutting depth (T_e)， and the ratio of normal force to tangential force per unit size of bit (ζ) are positively correlated with rock UCS and not affected by test conditions. Based on the fact that F_e and T_e can characterize rock drillability and mechanical specific energy， respectively， a model was developed to estimate rock UCS by F_e and T_e. Additionally， the validity of the model was preliminarily verified using a different type of rock. The research provids a new method for estimating rock UCS during drilling process.

Key words: measurement while drilling (MWD)； rock drillability； mechanical specific energy； rock strength； drilling parameters

中图分类号:

TU45

王宇恒，于庆磊，牛鹏，李友. 基于随钻参数的岩石单轴抗压强度表征模型研究[J]. 东北大学学报（自然科学版）, 2023, 44(8): 1168-1176.

WANG Yu-heng， YU Qing-lei， NIU Peng， LI You. Uniaxial Compressive Strength Model of Rock Using Measurement While Drilling (MWD) Data[J]. Journal of Northeastern University(Natural Science), 2023, 44(8): 1168-1176.

参考文献

[1]Scoble M J，Peck J.A technique for ground characterization using automated production drill monitoring［J］.International Journal of Surface Mining，Reclamation and Environment，1987，1(1):41-54.
[2]Peck J，Scoble M J，Carter M.Interpretation of drilling parameters for ground characterization in exploration and development of quarries［J］.Transactions of the Institution of Mining and Metallurgy (Section B Applied Earch Science)，1987，96(2):141-148.
[3]Scoble M J，Peck J，Hendricks C.Correlation between rotary drill performance parameters and borehole geophysical logging［J］.Mining Science and Technology，1989，8(3):301-312.
[4]Teale R.The concept of specific energy in rock drilling［J］.International Journal of Rock Mechanics and Mining Sciences，1965，2(1):57-73.
[5]谭卓英，岳中琦，蔡美峰.风化花岗岩地层旋转钻进中的能量分析［J］.岩石力学与工程学报，2007，26(3):478-483.(Tan Zhuo-ying，Yue Zhong-qi，Cai Mei-feng.Analysis of energy for rotary drilling in weathered granite formation［J］.Chinese Journal of Rock Mechanics and Engineering，2007，26(3):478-483.)
[6]谭卓英，李文，岳鹏君，等.基于钻进参数的岩土地层结构识别技术与方法［J］.岩土工程学报，2015，37(7):1328-1333.(Tan Zhuo-ying，Li Wen，Yue Peng-jun，et al.Techniques and approaches for identification of geo-formation structure based on diamond drilling parameters［J］.Chinese Journal of Geotechnical Engineering，2015，37(7):1328-1333.)
[7]Karasawa H，Ohno T，Kosugi M，et al.Methods to estimate the rock strength and tooth wear while drilling with roller-bits part 1:milled-tooth bits［J］.Journal of Energy Resources Technology，2002，124(3):125-132.
[8]Karasawa H，Ohno T，Kosugi M，et al.Methods to estimate the rock strength and tooth wear while drilling with roller-bits part 2:insert bits［J］.Journal of Energy Resources Technology，2002，124(3):133-140.
[9]Detournay E，Defourny P.A phenomenological model for the drilling action of drag bits［J］.International Journal of Rock Mechanics and Mining Sciences，1992，29(1):13-23.
[10]Detournay E，Richard T，Shepherd M.Drilling response of drag bits:theory and experiment［J］.International Journal of Rock Mechanics and Mining Sciences，2008，45(8):1347-1360.
[11]Richard T，Dagrain F，Poyol E，et al.Rock strength determination from scratch tests［J］.Engineering Geology，2012，147:91-100.
[12]Yahiaoui M，Paris J Y，Delbé K，et al.Independent analyses of cutting and friction forces applied on a single polycrystalline diamond compact cutter［J］.International Journal of Rock Mechanics and Mining Sciences，2016，85:20-26.
[13]王琦，秦乾，高红科，等.基于数字钻探的岩石 c-φ 参数测试方法［J］.煤炭学报，2019，44(3):915-922.(Wang Qi，Qin Qian，Gao Hong-ke，et al.A testing method for rock c-φ parameter based on digital drilling test technology［J］.Journal of China Coal Society，2019，44(3):915－922.)
[14]王琦，高红科，蒋振华，等.地下工程围岩数字钻探测试系统研发与应用［J］.岩石力学与工程学报，2020，39(2):301-310.(Wang Qi，Gao Hong-ke，Jiang Zhen-hua，et al.Development and application of a surrounding rock digital drilling test system of underground engineering［J］.Chinese Journal of Rock Mechanics and Engineering，2020，39(2):301-310.)
[15]王琦，秦乾，高松，等.数字钻探随钻参数与岩石单轴抗压强度关系［J］.煤炭学报，2018，43(5):1289-1295.(Wang Qi，Qin qian，Gao Song，et al.Relationship between rock drilling parameters and rock uniaxial compressive strength based on energy analysis［J］.Journal of China Coal Society，2018，43(5):1289-1295.)
[16]Kalantari S，Hashemolhosseini H，Baghbanan A.Estimating rock strength parameters using drilling data［J］.International Journal of Rock Mechanics and Mining Science，2018，104:45-52.
[17]周琴，张在兴，张凯，等.钻头切削齿破碎岩石的温度变化试验及机理分析［J］.天然气工业，2020，40(10):102-110.(Zhou Qin，Zhang Zai-xing，Zhang Kai，et al.Temperature variation tests and mechanism analysis of rock breaking by bit cutters［J］.Natural Gas Industry，2020，40(10):102-110.)
[18]冯上鑫，王善勇.旋切作用下岩石破碎机理及岩石可钻性的试验研究［J］.煤炭学报，2022，47(3):1395-1404.(Feng Shang-xin，Wang Shan-yong.Experimental study of rock-bit interaction mechanism for rock drillability assessment in rotary drilling［J］.Journal of China Coal Society，2022，47(3):1395-1404.)
[19]Huang H，Lecampion B，Detournay E.Discrete element modeling of tool-rock interaction I:rock cutting［J］.International Journal for Numerical and Analytical Methods in Geomechanics，2006，30(13):1303-1336.
[20]He X，Xu C.Specific energy as an index to identify the critical failure mode transition depth in rock cutting［J］.Rock Mechanics and Rock Engineering，2016，49(4):1461-1478.
[21]Zhang K，Hou R，Zhang G，et al.Rock drillability assessment and lithology classification based on the operating parameters of a drifter:case study in a coal mine in China［J］.Rock Mechanics and Rock Engineering，2016，49(1):329-334.