Results 21 to 30 of about 5,119,526 (356)
Modification Method of High-Efficiency Organic Bentonite for Drilling Fluids: A Review
Molecules, 2023 The requirements for drilling bentonites are tightening due to ever-increasing demands for petroleum resources, coupled with cost and reaction technology constraints.
Yi Pan +6 more
semanticscholar +1 more source
Drilling Processes with Hydraulic Percussion Rock Drills
Journal of MMIJ, 2017 Rock drills were developed about two hundred years ago, and hydraulic percussion rock drills are about half-century old. Performance and efficiency of rock drills have been increased by a number of researchers and engineers.
Kimihiro HASHIBA +2 more
doaj +1 more source
Известия высших учебных заведений: Геология и разведка, 2016 An efficiency criterion of boring technologies efficiency estimation is considered, simultaneously taking into account a 1 m drilling cost or a 1 day well installation cost and a day labor productivity.
V. V. Kulikov, M. S. Frolova
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Drag Reduction Technology of Ultra-long Directional Drilling and Its Application
Meikuang Anquan, 2020 In view of the problems such as high resistance, low efficiency and limited drilling depth during the sliding directional drilling under the condition of deep hole, this paper studies and forms the drag reduction technology of sliding drilling, including
WANG Xian, JIANG Lei, LI Quanxin, XU Chao
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High Efficiency Drilling Methods for Through Beds Hole in Underground Coal Mine
Meikuang Anquan, 2020 Considering the drilling efficiency problem encountered by crossing holes in underground coal mine, the paper divided roof and floor rock stratum into three grades in order to facilitate the study of technology in underground coal mine: high hard rock (4≤
DOU Xuqian
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A Novel Efficient Borehole Cleaning Model for Optimizing Drilling Performance in Real Time
Applied Sciences, 2023 The drilling industry has evolved significantly over the years, with new technologies making the process more efficient and effective. One of the most crucial issues of drilling is borehole cleaning, which entails removing drill cuttings and keeping the ...
Mohammed Al-Rubaii +4 more
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Power consumption of rock decomposition process during diamond core drilling using pulse flushing [PDF]
, 2018 Purpose. To study the impact of pulse flushing on the power consumption of rock decomposition during diamond core drilling. Methods. Theoretical analysis, processing of the obtained experimental data. Findings. The decrease in power consumption of rock
Dreus, A, Kozhevnykov, A
core +1 more source
Energies, 2022 This article is devoted to the development of technology for improving the efficiency of directional well drilling by predicting and adjusting the system of static and dynamic components of the actual weight on the bit, based on the real-time data ...
A. Kunshin +3 more
semanticscholar +1 more source
Improving rock classification in terms of explosivity [PDF]
, 2019 Purpose. To improve rock classification in terms of explosivity relying upon the detailed analysis of characteristics of rating classifications available in the Russian Federation and in the world. Methods.
Kirsanov, A +5 more
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Applied Sciences, 2022 With the development of China’s oil and gas exploration and development to complex oil and gas fields, the drilling efficiency and safety of complex formations with large hardness and strong abrasiveness have become increasingly significant.
Chuanzhen Zang +7 more
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