Investigations on main hydraulic parameters of a new abrasive water jets assisted bit for rock drilling

Yiyu Lu; Xiaoying Shen; Xiaofeng Yang; Jiren Tang; Binwei Xia

doi:10.3969/j.issn.1005-0930.2012.05.010

Investigations on main hydraulic parameters of a new abrasive water jets assisted bit for rock drilling

Yiyu Lu^*, Xiaoying Shen, Xiaofeng Yang, Jiren Tang, Binwei Xia

^*Corresponding author for this work

Chongqing University

Research output: Contribution to journal › Article › peer-review

6 Citations (Scopus)

Abstract

To abrasive water jets (AWJ) assisted bit for rock drilling, the penetration speed efficiency can be effected by three main hydraulic parameters of AWJ, namely nozzle diameter, jet pressure and abrasive concentration. By theoretically analyzing, equation for the relationship between penetration speed and main hydraulic parameters was established. The AWJ drilling experiment within limestone was carried out as well. Results obtained from theoretical and experimental ways indicated that nuzzle diameter was the most important effect factor to penetration speed, which was followed by jet pressure and abrasive concentration orderly. Convenient calculation formula of penetration was derived from regression analysis of experimental data. The achievements of present study provide reference evidences for drilling speed of this new abrasive water jets bit.

Original language	English
Pages (from-to)	837-845
Number of pages	9
Journal	Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering
Volume	20
Issue number	5
DOIs	https://doi.org/10.3969/j.issn.1005-0930.2012.05.010
Publication status	Published - Oct 2012
Externally published	Yes

Keywords

Abrasive water jets
Bit
Hydraulic parameters
Rock drilling

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10.3969/j.issn.1005-0930.2012.05.010

Cite this

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abstract = "To abrasive water jets (AWJ) assisted bit for rock drilling, the penetration speed efficiency can be effected by three main hydraulic parameters of AWJ, namely nozzle diameter, jet pressure and abrasive concentration. By theoretically analyzing, equation for the relationship between penetration speed and main hydraulic parameters was established. The AWJ drilling experiment within limestone was carried out as well. Results obtained from theoretical and experimental ways indicated that nuzzle diameter was the most important effect factor to penetration speed, which was followed by jet pressure and abrasive concentration orderly. Convenient calculation formula of penetration was derived from regression analysis of experimental data. The achievements of present study provide reference evidences for drilling speed of this new abrasive water jets bit.",

keywords = "Abrasive water jets, Bit, Hydraulic parameters, Rock drilling",

author = "Yiyu Lu and Xiaoying Shen and Xiaofeng Yang and Jiren Tang and Binwei Xia",

year = "2012",

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doi = "10.3969/j.issn.1005-0930.2012.05.010",

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journal = "Yingyong Jichu yu Gongcheng Kexue Xuebao/Journal of Basic Science and Engineering",

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T1 - Investigations on main hydraulic parameters of a new abrasive water jets assisted bit for rock drilling

AU - Lu, Yiyu

AU - Shen, Xiaoying

AU - Yang, Xiaofeng

AU - Tang, Jiren

AU - Xia, Binwei

PY - 2012/10

Y1 - 2012/10

N2 - To abrasive water jets (AWJ) assisted bit for rock drilling, the penetration speed efficiency can be effected by three main hydraulic parameters of AWJ, namely nozzle diameter, jet pressure and abrasive concentration. By theoretically analyzing, equation for the relationship between penetration speed and main hydraulic parameters was established. The AWJ drilling experiment within limestone was carried out as well. Results obtained from theoretical and experimental ways indicated that nuzzle diameter was the most important effect factor to penetration speed, which was followed by jet pressure and abrasive concentration orderly. Convenient calculation formula of penetration was derived from regression analysis of experimental data. The achievements of present study provide reference evidences for drilling speed of this new abrasive water jets bit.

AB - To abrasive water jets (AWJ) assisted bit for rock drilling, the penetration speed efficiency can be effected by three main hydraulic parameters of AWJ, namely nozzle diameter, jet pressure and abrasive concentration. By theoretically analyzing, equation for the relationship between penetration speed and main hydraulic parameters was established. The AWJ drilling experiment within limestone was carried out as well. Results obtained from theoretical and experimental ways indicated that nuzzle diameter was the most important effect factor to penetration speed, which was followed by jet pressure and abrasive concentration orderly. Convenient calculation formula of penetration was derived from regression analysis of experimental data. The achievements of present study provide reference evidences for drilling speed of this new abrasive water jets bit.

KW - Abrasive water jets

KW - Bit

KW - Hydraulic parameters

KW - Rock drilling

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Investigations on main hydraulic parameters of a new abrasive water jets assisted bit for rock drilling

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Keywords

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