EFFECT OF OPERATING PARAMETERS AND FORMATION PROPERTIES ON PENETRATION RATE IN SOME SANDSTONE ROCKS USING DIAMOND CORE BIT | ||||
JES. Journal of Engineering Sciences | ||||
Article 17, Volume 40, No 2, March and April 2012, Page 581-594 PDF (263.37 K) | ||||
Document Type: Research Paper | ||||
DOI: 10.21608/jesaun.2012.113132 | ||||
View on SCiNiTO | ||||
Authors | ||||
Mostafa M. Elbeblawi1; Mohamed A. Sayed1; Gamal Y. Boghdadi1; Helal H. Hamd_Allh2 | ||||
1Stuff members in the Mining & Metal. Eng. Dept., Faculty of Engineering, Assiut University | ||||
2Demonstrator in the Mining & petroleum Eng. Dept., Faculty of Engineering, Al-azhar University, Quena | ||||
Abstract | ||||
In this study four sandstone rocks were drilled by diamond core bit using a fixed laboratory-drilling machine at 400 and 1200 rpm, rotary speed, over a range of weights on bit (WOB) 12,18,24,30,…….,150 kg. Operating parameters of the drill bit such as WOB, penetration rates (PR), torque (T) and specific energy (SE) were continuously monitored during the drilling trials. Besides the effects of formation properties on the penetration rate were monitored. Relationships between WOB and both PR, torque T and SE were determined and the relationship between PR and SE was given. Graphs are presented and can be used to predict diamond-drilling performance easy and fast. | ||||
Keywords | ||||
Penetration rate; rotary speed; Weight on bit; Specific energy | ||||
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