Results 261 to 270 of about 141,212 (290)
Some of the next articles are maybe not open access.
AIJR Proceedings, 2022
Rock breaking by drill and blast using chemical explosives has been a dominant method in construction. However, blasting is hazardous and risky in nature: it involves the use of Category 1 Dangerous Goods; and it induces ground vibration and risks of fly rocks and air over pressure.
G X Guan +4 more
openaire +1 more source
Rock breaking by drill and blast using chemical explosives has been a dominant method in construction. However, blasting is hazardous and risky in nature: it involves the use of Category 1 Dangerous Goods; and it induces ground vibration and risks of fly rocks and air over pressure.
G X Guan +4 more
openaire +1 more source
THE EFFECT OF ROCK BIT CUTTING STRUCTURE ON ROCK BREAKING EFFICIENCY
Proceedings of International Meeting on Petroleum Engineering, 1986ABSTRACT A study of the effect of rock bit cutting structure on rock breaking efficiency was made with full scale bits for soft to medium formations on a laboratory testing rig. An analysis of the relationship between rock breakage and cutting structure based on the drilling rate, bottom hole pattern and operating parameters revealed the
Jikang Hou, Zhaofeng Luo
openaire +1 more source
Abu Dhabi International Petroleum Exhibition & Conference, 2020
Abstract The current radial well operation technology can not adapt to high temperature, and the long tripping period and low drilling efficiency in deep well conditions.According to the characteristics of abrasive jet, a new radial drilling method is proposed in this paper, in which the abrasive jet is conveyed to the underground by CT (
Zhi Chen +4 more
openaire +1 more source
Abstract The current radial well operation technology can not adapt to high temperature, and the long tripping period and low drilling efficiency in deep well conditions.According to the characteristics of abrasive jet, a new radial drilling method is proposed in this paper, in which the abrasive jet is conveyed to the underground by CT (
Zhi Chen +4 more
openaire +1 more source
Research on Cutter Surface Shapes and Rock Breaking Efficiency Under High Well Temperature
SSRN Electronic Journal, 2022Dongdong Song +3 more
openaire +1 more source
Improving efficiency of rock breaking using pre-weakening of rock mass
Eurasian Mining, 2023E. Kh. Aben +3 more
openaire +1 more source
INNOVATIVE APPROACHES TO DESIGNING HIGHLY EFFICIENT ROCK-BREAKING TOOL
MINING INFORMATIONAL AND ANALYTICAL BULLETIN, 2017A.Ya. Tretyak +3 more
openaire +1 more source
59th U.S. Rock Mechanics/Geomechanics Symposium
ABSTRACT: High-pressure jet drilling technology is an efficient and clean drilling speed increase technology, which has been widely used in middle and upper strata drilling. However, with the global oil and gas exploration and development gradually into deep water and deep depth, the high confining pressure ...
Jiawei Liu +5 more
openaire +1 more source
ABSTRACT: High-pressure jet drilling technology is an efficient and clean drilling speed increase technology, which has been widely used in middle and upper strata drilling. However, with the global oil and gas exploration and development gradually into deep water and deep depth, the high confining pressure ...
Jiawei Liu +5 more
openaire +1 more source
Effect of impact impulse parameters on rock breaking efficiency
Soviet Mining Science, 1973O. D. Alimov, A. F. Lisovskii
openaire +1 more source
Experimental research on laser thermal rock breaking and optimization of the process parameters
International Journal of Rock Mechanics and Minings Sciences, 2022Jianzhuo Zhang
exaly
Numerical study on rock breaking efficiency of TBM with the consideration of pre-slotting
2022Jianjun Ma +4 more
openaire +1 more source