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123818

MECHANICAL AND GEOLOGICAL INFLUENCES ON DRILLING LIMESTONE ROCK AT LOW ROTARY SPEED

Article

Last updated: 26 Dec 2024

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Subjects

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Tags

Mining and Metallurgical Engineering.

Abstract

The drillability of a rock mass is determined by various geological and mechanical parameters. In this study some major correlations between specific geological factors and drilling rate are shown. Drilling rate is dependent on a lot of geological parameters which include jointing of rock mass, orientation of schistosity (rock anisotropy), degree of interlocking of microstructures, porosity and quality cementation in clastic rock, degree of hydrothermal decomposition and weathering of a rock mass. Three types of limestone rocks were drilled by diamond core bit using a fixed laboratory-diamond drilling machine at 400 rotational speed, and over a range of weights on bit (WOB) 15,30,45,…….,150 kg. Operating parameters of the drill bit such as WOB, rate of penetration (ROP), torque and drilling specific energy (SE) were continuously monitored during the drilling trials. The effects of these parameters on the performance of the bit were examined. Relationships between WOB and both ROP, torque and SE were also described and the relationship between ROP and SE, was also given. Simple graphs are presented which can be used to predict diamond-drilling performance easy and fast.

DOI

10.21608/jesaun.2010.123818

Authors

First Name

Gamal Y.

Last Name

Boghdady

MiddleName

-

Affiliation

Mining and Metallurgical Engineering Department, Faculty of Engineering, Assiut university, Assiut, Egypt

Email

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City

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Orcid

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Volume

38

Article Issue

No 1

Related Issue

16624

Issue Date

2010-01-01

Receive Date

2009-11-05

Publish Date

2010-01-01

Page Start

259

Page End

270

Print ISSN

1687-0530

Online ISSN

2356-8550

Article File

JESAUN_Volume 38_Issue No 1_Pages 259-270.pdf

PDF . 314.6kB

Link

https://jesaun.journals.ekb.eg/article_123818.html

Detail API

https://jesaun.journals.ekb.eg/service?article_code=123818

Order

16

Type

Research Paper

Type Code

1,438

Publication Type

Journal

Publication Title

JES. Journal of Engineering Sciences

Publication Link

https://jesaun.journals.ekb.eg/

MainTitle

MECHANICAL AND GEOLOGICAL INFLUENCES ON DRILLING LIMESTONE ROCK AT LOW ROTARY SPEED

Details

Type

Article

Created At

23 Jan 2023