钻探工程2025，Vol.52Issue(2)：111-116,6.DOI:10.12143/j.ztgc.2025.02.015
多级金刚石单晶孕镶柱耐磨试验研究
Experimental study on wear resistance of multi-level diamond single crystal impregnated columns
摘要
Abstract
This paper focuses on the diamond single crystal impregnated columns.To determine the wear resistance of impregnated column under different diamond parameters,a comparative wear resistance test for multi-level diamond single crystal impregnated pillars is designed.The preliminary conclusion obtained through experiments is that the wear ratio is relatively high when the diamond impregnated columns are graded with three mesh sizes of 20/25+35/40+60/70,and the design of a double chamfer structure can improve the wear resistance of diamond impregmented columns by about three times.The impregnated pillar was used as a secondary tooth inlay in Ø152mm and Ø215.9mm compound non-coring bit,and drilling tests were conducted on both bits.Which has a highier drilling efficiency and extremely slight wearness.The impregnated column studied in this article has great potential for engineering applications and is expected to provide reference for the design and selection of drilling tool materials.关键词
孕镶柱/金刚石单晶/磨耗比/副齿/钻头Key words
impregnated columns/diamond single crystal/wear ratio/secondary teeth/bit分类
天文与地球科学引用本文复制引用
吴海霞,沈立娜,李春,赵义,张德龙,于金平..多级金刚石单晶孕镶柱耐磨试验研究[J].钻探工程,2025,52(2):111-116,6.基金项目
北京探矿工程研究所所立项目"高效冲击回转钻头"(编号:SL202303) （编号:SL202303）
中国石油天然气集团有限公司关键核心技术攻关项目"万米超深层油气资源钻探关键技术与装备研究"(编号:2022ZG06) （编号:2022ZG06）
