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Year Number of Results
2009 1
2010 1
2016 1
2017 1
2018 2
2019 2
2020 1
2021 2
2022 2
2023 1
2024 0

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11 results

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Page 1
Pneumatic rock drill vs. electric rotary hammer drill: Productivity, vibration, dust, and noise when drilling into concrete.
Rempel D, Antonucci A, Barr A, Cooper MR, Martin B, Neitzel RL. Rempel D, et al. Appl Ergon. 2019 Jan;74:31-36. doi: 10.1016/j.apergo.2018.08.005. Epub 2018 Aug 13. Appl Ergon. 2019. PMID: 30487106
OBJECTIVES: Both pneumatic rock drills and electric rotary hammer drills are used for drilling large holes (e.g., 10-20 mm diameter) into concrete for structural upgrades to buildings, highways, bridges, and airport tarmacs. ...Structural contra …
OBJECTIVES: Both pneumatic rock drills and electric rotary hammer drills are used for drilling large hole …
Particle jet impact deep-rock in rotary drilling: Failure process and lab experiment.
Fang T, Ren F, Wang B, Cheng J, Liu H. Fang T, et al. PLoS One. 2021 Apr 28;16(4):e0250588. doi: 10.1371/journal.pone.0250588. eCollection 2021. PLoS One. 2021. PMID: 33909681 Free PMC article.
Aimed at the technical problems of low drilling speed and difficult rock-breaking in deep-well and hard rock-stratum, particle waterjet coupled impact rock-breaking technology in rotary drilling is put forward in this paper. Firstly, the …
Aimed at the technical problems of low drilling speed and difficult rock-breaking in deep-well and hard rock-stratum, p …
Stick-Slip Vibration Suppression in Drill String Using Observer-Based LQG Controller.
Riane R, Doghmane MZ, Kidouche M, Tee KF, Djezzar S. Riane R, et al. Sensors (Basel). 2022 Aug 10;22(16):5979. doi: 10.3390/s22165979. Sensors (Basel). 2022. PMID: 36015739 Free PMC article.
The process involves crushing the rock by rotating the drill bit along a drill string to create a borehole. ...Thence, it is highly recommended to use the proposed approach in smart rotary drilling systems....
The process involves crushing the rock by rotating the drill bit along a drill string to create a borehole. ...Thence, …
A Parametric Study for the Design of an Optimized Ultrasonic Percussive Planetary Drill Tool.
Li X, Harkness P, Worrall K, Timoney R, Lucas M. Li X, et al. IEEE Trans Ultrason Ferroelectr Freq Control. 2017 Mar;64(3):577-589. doi: 10.1109/TUFFC.2016.2633319. Epub 2016 Nov 29. IEEE Trans Ultrason Ferroelectr Freq Control. 2017. PMID: 27913339
Traditional rotary drilling for planetary rock sampling, in situ analysis, and sample return are challenging because the axial force and holding torque requirements are not necessarily compatible with lightweight spacecraft architectures in low-gravity enviro …
Traditional rotary drilling for planetary rock sampling, in situ analysis, and sample return are challenging because th …
Feature-based intelligent models for optimisation of percussive drilling.
Afebu KO, Liu Y, Papatheou E. Afebu KO, et al. Neural Netw. 2022 Apr;148:266-284. doi: 10.1016/j.neunet.2022.01.021. Epub 2022 Feb 3. Neural Netw. 2022. PMID: 35180451 Free article.
As a rotary-percussion system, the vibro-impact drilling (VID) system utilises resonantly induced high frequency periodic impacts alongside existing drill-string rotation to cut through downhole rock layers. Due to the inhomogeneous nature of the ro …
As a rotary-percussion system, the vibro-impact drilling (VID) system utilises resonantly induced high frequency periodic impa …
Ultrasonic rock sampling using longitudinal-torsional vibrations.
Cardoni A, Harkness P, Lucas M. Cardoni A, et al. Ultrasonics. 2010 Apr;50(4-5):447-52. doi: 10.1016/j.ultras.2009.09.036. Epub 2009 Oct 6. Ultrasonics. 2010. PMID: 19879616 Free article.
The main function of these vehicles consists of moving across planet surfaces, and drilling and retrieving samples for in situ analysis. Recent research has shown that drilling of rock materials can be achieved using axially oscillating tuned devices which, c …
The main function of these vehicles consists of moving across planet surfaces, and drilling and retrieving samples for in situ analys …
Influence mechanism of polycrystalline diamond compact bit temperature rise based on thermo-fluid-solid coupling.
Han X, Xue L, Xu J. Han X, et al. Sci Prog. 2023 Oct-Dec;106(4):368504231214704. doi: 10.1177/00368504231214704. Sci Prog. 2023. PMID: 38105497 Free PMC article.
In addition, a response surface analysis model was established to study the influence of different drilling parameters on the polycrystalline diamond compact bit cutting teeth temperature during drilling in coal rock. The analysis results show that the influe …
In addition, a response surface analysis model was established to study the influence of different drilling parameters on the polycry …
Theoretical analysis and design of hydro-hammer with a jet actuator: An engineering application to improve the penetration rate of directional well drilling in hard rock formations.
He JF, Liang YP, Li LJ, Luo YJ. He JF, et al. PLoS One. 2018 May 16;13(5):e0196234. doi: 10.1371/journal.pone.0196234. eCollection 2018. PLoS One. 2018. PMID: 29768421 Free PMC article.
The penetration rate of conventional hard rock drilling technology in horizontal directional well excavations is relatively low, resulting in multiple overgrinding of drill cuttings in bottom boreholes. Conventional drilling techniques with reamer or d …
The penetration rate of conventional hard rock drilling technology in horizontal directional well excavations is relatively lo …
Soil Contamination Assessments from Drilling Fluids and Produced Water Using Combined Field and Laboratory Investigations: A Case Study of Arkansas, USA.
Swigart J, Heo J, Wolf D. Swigart J, et al. Int J Environ Res Public Health. 2021 Mar 2;18(5):2421. doi: 10.3390/ijerph18052421. Int J Environ Res Public Health. 2021. PMID: 33801307 Free PMC article.
Rotary drilling for oil and natural gas uses drilling fluid for lubrication of the bit, to seal off unstable shale layers, and floating out rock cuttings. Drilling fluid is a water-clay chemical mixture. Produced water is a water-sand chemical m …
Rotary drilling for oil and natural gas uses drilling fluid for lubrication of the bit, to seal off unstable shale laye …
Design of experimental setup for liquid nitrogen assisted polycrystalline diamond compact bit drilling.
Xiong C, Huang Z, Shi H, Dai X, Zhang S, Hui C. Xiong C, et al. Rev Sci Instrum. 2019 Dec 1;90(12):124505. doi: 10.1063/1.5125794. Rev Sci Instrum. 2019. PMID: 31893850
A liquid nitrogen assisted polycrystalline diamond compact (PDC) bit drilling method is expected to be suitable for hot dry rock (HDR) drilling because the huge thermal stress induced in the drilling process can help to break the rock and the lo …
A liquid nitrogen assisted polycrystalline diamond compact (PDC) bit drilling method is expected to be suitable for hot dry rock …
11 results