Analysis and Testing of Load Characteristics for Rotary-Percussive Drilling of Lunar Rock Simulant with a Lunar Regolith Coring Bit [PDF]
Shock and Vibration, 2017 Based on an optimized lunar regolith coring bit (LRCB) configuration, the load characteristics of rotary-percussive drilling of lunar rock simulant in a laboratory environment are analyzed to determine the effects of the drilling parameters (the ...
Peng Li +3 more
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Use of the Rotary-Percussion Drilling Technology in the OKR Mining Conditions and by Drilling the Wells for Purposes of Heating Pump Installation [PDF]
Acta Montanistica Slovaca, 2004 Sedimentary rocks in the Ostrava-Karviná Coalfield (OKR) especially the Saddle Seams of the Karviná Formation are marked with considerable abrasive property following from the high content of siliceous component in these rocks.
Koníèek Jiøí, Mazáè Josef
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Research on Chip Removal Performance of Rotary Percussive Ultrasonic Drill for Planetary Rock Sampling [PDF]
AerospaceThe objective of the kinematic model of rock chips is to examine the impact of the driving parameters of drilling tools on the effective chip removal speed, with a view to analyze the chip removal performance of rotary percussion ultrasonic drilling. The
Yinchao Wang +6 more
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New drilling methods for the conductor casing operations [PDF]
Acta Montanistica Slovaca, 2006 The necessity to apply casing to wells drilled in loose rock strata have recently created conditions for the modernization of old solutions and the development of new drilling technologies. The newest World's design and technological solutions for rotary,
Rafał Wiśniowski
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STRUCTURAL DESIGN AND MOTION SIMULATION RESEARCH ON A NEW TYPE COMPOSITE ROTARY PERCUSSION DRILLING TOOL [PDF]
Jixie qiangdu, 2017 A new type composite rotary percussion drilling tool was designed by studying the conversion mechanism of rotary to reciprocating motion. High-frequency axial impact and vibration was generated by an impact and energy transfer mechanism consisting of a ...
ZHANG HaiPing +3 more
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Improvement of generalization performance of diagnostic system for drill bit abnormality in rotary percussion drilling with grad-CAM [PDF]
Discover Applied SciencesRotary percussion drills, specifically top hammer types, are essential in resource extraction and exploration. These drills frequently suffer damage at the drill bit, necessitating effective decision-making to address issues.
Yuna Nakazawa +5 more
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Drilling bits in percussive-rotary drilling technology (down the hole DTH) [PDF]
AGH Drilling, Oil, Gas, 2012 This paper addresses the issue of drillbits for drilling normal and large diameter boreholes with the use of percussion-rotary method. The most important elements of drillbits, i.e. sintered carbide inserts of different shapes have been described.
Tomasz Śliwa, Paweł Śnieżek
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The process of crack propagation during rotary percussion drilling of hard rocks [PDF]
, 2021 Rotary percussion drilling determines the possibility of reducing waste and intrusion of foreign objects into the solution. It reduces drilling costs and increases the processing speed of the resulting product, and also contributes to the high-quality ...
Akhymbayev, Daniyar G. +3 more
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Design and Application of a Rock Breaking Experimental Device With Rotary Percussion [PDF]
, 2016 The rotary impact drilling technology is one of the effective speed-up methods in drilling deep well. The dynamics model of the impact process and rock breaking shows that the peak value of the impact load is affected by the spring compression, and the ...
XUAN, Lingchao +2 more
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Drilling intake wells in carbonate formations to provide water for drilling purposes [PDF]
, 2020 The realization of drilling works oriented towards the prospection and extraction of hydrocarbons from conventional and unconventional resources requires the supply of large amounts of water for technological purposes and fracturing jobs in shale ...
Łukańko, Łukasz, Macuda, Jan
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