Uniaxial Compressive Strength Model of Rock Using Measurement While Drilling (MWD) Data

被引：1
|
作者：
Wang Y.-H. [1 ]
Yu Q.-L. [1 ]
Niu P. [1 ]
Li Y. [1 ]
机构：
[1] School of Resources & Civil Engineering, Northeastern University, Shenyang
来源：
Dongbei Daxue Xuebao/Journal of Northeastern University | 2023年 / 44卷 / 08期
关键词：
drilling parameters; measurement while drilling (MWD); mechanical specific energy; rock drillability; rock strength;
D O I：
10.12068/j.issn.1005-3026.2023.08.014
中图分类号：
学科分类号：
摘要：
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 (Fe), the slope of torque and cutting depth (Te), 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 Fe and Te can characterize rock drillability and mechanical specific energy, respectively, a model was developed to estimate rock UCS by Fe and Te. 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. © 2023 Northeastern University. All rights reserved.
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页码：1168 / 1176
页数：8
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