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An Efficient Hybrid Method for Animating Breaking Wave on Rock
Tohoku-Section Joint Convention Record of Institutes of Electrical and Information Engineers, Japan, 2009 Tsedendorj, Gantulga +2 more
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IOP Conference Series: Earth and Environmental Science, 2019 Yuping Yang +5 more
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The improved rock breaking efficiency of an annular-groove PDC bit
Journal of Petroleum Science and Engineering, 2019Abstract To solve a major problem faced by drilling technicians, that of how to improve rock breaking efficiency in complex strata, this paper introduces a polycrystalline diamond compact (PDC) drill bit with a special structure. Static-pressure breaking tests show that the breaking work ratio of a single tooth on a ridge is much smaller than that on
Zongliang Xie, Kuilin Huang
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Experimental and simulation study on rock-breaking efficiency of disc cutters on composite rocks
International Journal of Rock Mechanics and Minings Sciences, 2022Chunshun Zhang, Sen Wen
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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
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Efficient 3D Visual Perception for Robotic Rock Breaking
2019 IEEE 15th International Conference on Automation Science and Engineering (CASE), 2019In recent years, underground mining automation (e.g., the heavy-duty robots carrying rock breaker tools for secondary breaking) has drawn substantial interest. This breaking process is needed only when over-sized rocks threaten to jam the mine material flow.
Longchuan Niu +3 more
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A new index of rock-breaking tool efficiency
Journal of Mining Science, 2016Based on the analysis of qualitative interaction between rocks and a rock-breaking tool, a new coefficient of the tool efficiency is proposed. This coefficient makes it possible to estimate the quality of the tool impact on broken rocks and to predict energy input of rock breaking and, consequently, productivity of mining machines in specific ...
B. L. Gerike +2 more
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Three-dimensional simulation of rock breaking efficiency under various impact drilling loads
Arabian Journal of Geosciences, 2020Percussion drilling is believed to be an efficient way to enhance the drilling performance, compared with the conventional drilling in deep wells, which could be achieved by applying impact loads above the drill bit. The finite simulation is an efficient method to predict the drilling performance when the drill bit interacts with rocks. In contrast, as
Yandong Yang +4 more
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Improving efficiency of rock breaking using pre-weakening of rock mass
Eurasian Mining, 2023E. Kh. Aben +3 more
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