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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
Kuilin Huang +3 more
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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
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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
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SPE Drilling & Completion, 2022
Summary Aiming at the difficulty of penetration in hard-plasticity formation represented by the Mahu oil field, a new type of chord-edge cutter is proposed. Through theoretical derivation and quantitative analysis of specific unit pressure (SUP) and breaking area, the penetration and rock-breaking area of the chord-edge cutter are ...
Bo Yang +4 more
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Summary Aiming at the difficulty of penetration in hard-plasticity formation represented by the Mahu oil field, a new type of chord-edge cutter is proposed. Through theoretical derivation and quantitative analysis of specific unit pressure (SUP) and breaking area, the penetration and rock-breaking area of the chord-edge cutter are ...
Bo Yang +4 more
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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
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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
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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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Experimental and simulation study on rock-breaking efficiency of disc cutters on composite rocks
International Journal of Rock Mechanics and Mining Sciences, 2022Sen Wen, Chunshun Zhang
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Research on Cutter Surface Shapes and Rock Breaking Efficiency Under High Well Temperature
SSRN Electronic Journal, 2022Dongdong Song +3 more
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INNOVATIVE APPROACHES TO DESIGNING HIGHLY EFFICIENT ROCK-BREAKING TOOL
MINING INFORMATIONAL AND ANALYTICAL BULLETIN, 2017A.Ya. Tretyak +3 more
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An Optimization Methodology of Cutter-Spacing for Efficient Mechanical Breaking of Jointed Rock Mass
Rock Mechanics and Rock Engineering, 2022Kanglei Song +3 more
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