钻探工程2025，Vol.52Issue(5)：18-24,7.DOI:10.12143/j.ztgc.2025.05.003
小颗粒金刚石切削具破碎岩石阻力分析研究
Analytical research on rock fragmentation resistance while drilling with small-sized diamond cutters
摘要
Abstract
Drilling is a process of rock fragmentation practically.In the rock fragmentation process,on the one hand,the bit fragments the rock,on the other hand,the rock resists the fragmentation.Both aspects should be considered.In the past,the research on how drill bits fragment rocks has been extensive,but research on how rock resists fragmentation is insufficient.Impregnated diamond bits can be used to drill rocks with drillability grades 6 to 12.Their application scope is wide.Impregnated bits usually contain small-sized diamond cutters.Russian drillers have studied rock fragmentation resistance during drilling with small-sized diamond cutters and proposed using the resistance coefficient to analyze how rocks resist fragmentation.Understanding this coefficient can help address issues such as the dependence of technical indexes on drilling parameters,how to improve drilling results,what kind of state the rock fragmentation is in and to determine how to increase technical and economic indexes of drilling and so on.In China,the research on the resistance coefficient is insufficient and there are no relevant research reports.Therefore the research has certain reference value and practical significance.It is suggested that this research topic be explored to confirm its importance in improving the results of rock fragmentation and increasing the technical and economical indexes of drilling engineering in China.关键词
切削具/孕镶金刚石钻头/小颗粒金刚石/岩石破碎/破碎阻力系数/规程参数/技术经济效果Key words
cutting tool/impregnated diamond bit/small-sized diamond/rock fragmentation/fragmentation resistance coefficient/procedure parameters/technical and economic effects分类
天文与地球科学引用本文复制引用
汤凤林,赵荣欣,Нескоромных B.B.,李博,刘浩,段隆臣,Чихоткин В.Ф...小颗粒金刚石切削具破碎岩石阻力分析研究[J].钻探工程,2025,52(5):18-24,7.基金项目
国家自然科学基金面上项目"不同结构高压电脉冲钻头的破岩过程与预测模型研究"(编号:42272366) （编号:42272366）
