Title

Contrast Between Sand, Water and Cavitation Erosion of Rock

Abstract

Field research in oil well drilling has shown the advantage of adding high pressure jet nozzles to rock drilling bits. Some additional advantage has been found by adding an abrasive to the fluid and this has also been tested in the field, but several problems were encountered which stopped the project. The research described examines the potential benefits of adding sand as an abrasive to water jets in order to improve the penetration rate in granite. An improvement in performance is achieved; however, when the fluid velocity exceeds 1200 ft s-1 it is shown that cavitating the jet flow is a more effective means of improving jet cutting ability. The reasons for this are discussed with the aid of thin section photomicrographs of the rock targets after testing. © 1980.

Department(s)

Mining and Nuclear Engineering

Document Type

Article - Journal

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1980 Elsevier, All rights reserved.

Share

 
COinS