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Elbeblawi, M., Sayed, M., Boghdadi, G., Hamd_Allh, H. (2013). USING DIAMOND CORE BIT TO DETERMINE THE SUITABLE OPERATING PARAMETERS IN DRILLING SOME MARBLE ROCKS. JES. Journal of Engineering Sciences, 41(No 2), 723-745. doi: 10.21608/jesaun.2013.114757
Mostafa M. Elbeblawi; Mohamed A. Sayed; Gamal Y. Boghdadi; Helal H. Hamd_Allh. "USING DIAMOND CORE BIT TO DETERMINE THE SUITABLE OPERATING PARAMETERS IN DRILLING SOME MARBLE ROCKS". JES. Journal of Engineering Sciences, 41, No 2, 2013, 723-745. doi: 10.21608/jesaun.2013.114757
Elbeblawi, M., Sayed, M., Boghdadi, G., Hamd_Allh, H. (2013). 'USING DIAMOND CORE BIT TO DETERMINE THE SUITABLE OPERATING PARAMETERS IN DRILLING SOME MARBLE ROCKS', JES. Journal of Engineering Sciences, 41(No 2), pp. 723-745. doi: 10.21608/jesaun.2013.114757
Elbeblawi, M., Sayed, M., Boghdadi, G., Hamd_Allh, H. USING DIAMOND CORE BIT TO DETERMINE THE SUITABLE OPERATING PARAMETERS IN DRILLING SOME MARBLE ROCKS. JES. Journal of Engineering Sciences, 2013; 41(No 2): 723-745. doi: 10.21608/jesaun.2013.114757

USING DIAMOND CORE BIT TO DETERMINE THE SUITABLE OPERATING PARAMETERS IN DRILLING SOME MARBLE ROCKS

Article 21, Volume 41, No 2, March and April 2013, Page 723-745  XML PDF (579.31 K)
Document Type: Research Paper
DOI: 10.21608/jesaun.2013.114757
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Authors
Mostafa M. Elbeblawi1; Mohamed A. Sayed1; Gamal Y. Boghdadi1; Helal H. Hamd_Allh* 2
1Mining & Metal. Eng. Dept., Faculty of Engineering, Assiut University
2Mining & petroleum Eng. Dept., Faculty of Engineering, Al-azhar University, Quena
Abstract
In this study four marble rocks were drilled by diamond core bit using a fixed laboratory-drilling machine at 400 and 1200 rpm, rotational speed, and over a range of weights on bit (WOB) 45, 60, 75, 90, … 225 Kg. Operating parameters of the drill bit such as WOB, penetration rate (PR), torque (T) and drilling specific energy (SE) were continuously monitored during the drilling trials. The effects of these parameters on the penetration rate were examined, and the effects of formation properties on the drilling rate were examined. Relationships between WOB and both PR, torque T and SE were described and the relationship between PR and SE was determined. Graphs are presented which can be used to predict diamond-drilling performance easy and fast.
Keywords
Penetration rate; rotary speed; Weight on bit; Specific energy; Marble rocks
Main Subjects
Mining and Metallurgical Engineering.
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