The Numerical Research on Rock Breaking and Rising Mechanism of Rotary-Percussive Drilling
Sign Up to like & getrecommendations! Published in 2019 at "Arabian Journal for Science and Engineering"
DOI: 10.1007/s13369-019-04170-5
Abstract: In this paper, the numerical simulation is used to study the rising mechanism of rotary-percussive drilling, which is under the combination of rotary cutting and axial impact. The main objective of the present work is… read more here.
Keywords: mechanism rotary; rotary percussive; percussive drilling; drilling ... See more keywords
Analysis on the mechanical properties of granite rock near the wellbore after percussive drilling and AWJ perforation
Sign Up to like & getrecommendations! Published in 2020 at "Journal of Petroleum Science and Engineering"
DOI: 10.1016/j.petrol.2019.106489
Abstract: Abstract Rock properties near the wellbore are particularly important for the development of geothermal wells, but few people have studied them. The mechanical properties of granite rock near the wellbore after percussive drilling and abrasive… read more here.
Keywords: percussive drilling; near wellbore; awj perforation; drilling ... See more keywords
Adaptation of Laboratory tests for the assessment of wear resistance of drill-bit inserts for rotary-percussive drilling of hard rocks
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DOI: 10.1016/j.wear.2020.203366
Abstract: Abstract The development of wear resistant materials for drill-bit inserts are of primary importance for efficient percussive drilling in hard abrasive rock. To speed up the development of enhanced wear resistance materials, the laboratory tests… read more here.
Keywords: bit inserts; percussive drilling; impact; drill bit ... See more keywords
Optimal Design Parameters of a Percussive Drilling System for Efficiency Improvement
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DOI: 10.1155/2018/2346598
Abstract: This paper aims to determine the optimal design parameters for percussive drilling systems considering the bit-rock interaction. First, the motion dynamics of a bit impacted by a dropped piston are modeled by impact stress propagation… read more here.
Keywords: percussive drilling; design parameters; optimal design; rock ... See more keywords