Results 161 to 170 of about 333 (189)

Ways to improve rotary-percussive drilling efficiency

Gornyi Zhurnal, 2018
A. S. Kondratenko, V. V. Timonin, V. N. Karpov, A. I. Popelyukh   +3 more
openaire   +1 more source

Improving Drilling Technology in Percussive Rotary Drilling

Journal of Superhard Materials
Ye. A. Koroviaka, S. O. Shypunov
openaire   +1 more source

rotary percussion drill

2014
openaire   +1 more source

Experimental study and analysis on a fluidic hammer—an innovative rotary-percussion drilling tool

Journal of Petroleum Science and Engineering, 2019
Xinxin Zhang, Yongjiang Luo, Zhangshaohe Zhang   +2 more
exaly  

rotary percussive drilling

2014
openaire   +1 more source

Completely hydraulic rotary percussive rock drills

International Journal of Rock Mechanics and Mining Sciences & Geomechanics Abstracts, 1974
F.B. Leventus, G. Cagnioncle
openaire   +1 more source

Parameter Optimization and Application Evaluation of Rotary Percussion Drilling

2021
Li Bodong
exaly  

percussive rotary drilling

2014
openaire   +1 more source

rotary percussive drill

2014
openaire   +1 more source

Quantitative estimate of rotary–percussion drilling efficiency in rocks

Journal of Mining Science, 2017
Oparin V N, V N Oparin, V N Karpov
exaly