摘要：Swirling impeller abrasive water jet (SAWJ) is a viable alternative for larger-diameter drilling of mining and oil and gas extraction. Abrasive material plays an important role in eco-efficient drilling of SAWJ. Here, we investigate performances of six types of abrasive materials during SAWJ drilling of hard granite. Rock breaking performances and abrasive particles characteristics before and after impact were studied. Besides, reusability, efficiency and economy of different abrasive materials were discussed. The results indicated that SAWJ would create a large-diameter (63-71 mm) hole with a conical bulge on the bottom regardless of the abrasive material used in it. Abrasive particles size distribution and shape factor before and after impacting with granite had slight changes. Moreover, median diameter of the particles and shape factor were used for estimating the reusability of the abrasive particles after impacting with granite, and the results indicated that all the abrasive materials had excellent reusability. Besides, the efficiency and economy analyses showed that the garnet abrasive had the best rock breaking performance. Therefore, we recommend garnet as the abrasive during swirling impeller abrasive water jet drilling of granite.

关键字：Abrasive material; Abrasive waterjet; Granite breakage; Jet nozzle

ISSN号：0723-2632

卷、期、页：卷: 56期: 6页: 4343-4361

发表日期：2023-06-01

影响因子：0.000000

期刊分区（SCI为中科院分区）：二区

收录情况：SCI（科学引文索引印刷版）,地学领域高质量科技期刊分级目录（国外T1）,SCIE（科学引文索引网络版）

发表期刊名称：ROCK MECHANICS AND ROCK ENGINEERING

通讯作者：李欢,程康,姜天文

第一作者：黄中伟,李敬彬,熊超

论文类型：期刊论文

论文概要：李欢,黄中伟,李敬彬,程康,姜天文,熊超，Performances of Different Abrasive Materials During Swirling Impeller Abrasive Water Jet Drilling of Granite，ROCK MECHANICS AND ROCK ENGINEERING，2023，卷: 56期: 6页: 4343-4361

论文题目：Performances of Different Abrasive Materials During Swirling Impeller Abrasive Water Jet Drilling of Granite