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Keywords: vibration
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Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0043
... exits the hanging string, it exerts a back-pressure, causing the string to vibrate. Above a certain injection flow rate, the vibration becomes unstable. Before this condition, however, the string may bend and even break due to fatigue. Recently a field test (Reitze, A. 2019) was conducted at four...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0976
... ABSTRACT: In this paper, the support vector machine model (SVM) was used to classify the earthquakes and blasting from the files recorded by an open pit copper mine seismic network. The database cleaning of false positive records (vibrations records not from blasting) must be supervised...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-1184
... monitoring collected useful data for the site rock characterization – vibration (stress) attenuation versus scaled distance; site resonant frequency, and ground p-wave velocity from signature hole blasts. Using the multiple seed waveforms that are encoded within the site frequency response, the Multiple Seed...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0194
... ABSTRACT: mining requires continuous production through rock fragmentation by drilling and blasting. Drilling and blasting are essential to productivity but can result in blast-induced ground vibration issues in sensitive communities. Civil and geotechnical strategies considering rock...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0370
... cutters’ is 14mm, the optimum spacing of cutters in the combination of ‘conical and triple-ridged cutters’ is 13mm. In transverse vibration, the combination type of ‘conical and triple-ridged cutters’ has the smallest vibration condition. In the axial vibration, the combination of ‘axe-shaped and conical...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0393
... ABSTRACT: Crude oil production is promoted by means of physical vibration, such as the use of high-power acoustic waves, ultrasonic waves, electro-hydraulic pulse waves, and high-pressure shock waves of explosive gases to stimulate the reservoir. And the propagation speed, distance...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0496
... are measured and analyzed under mechanical vibration. The experimental results show that the low frequency mechanical vibration has obvious effect on the permeability of tectonic coal samples. Increasing the mechanical vibration frequency can promote the large amount of methane desorption in coal reservoirs...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0524
... subdiscipline orepass mining sweden vibration concentration sensitivity biotite schist crownpillar orebody seismicity evolution lkab figure 7 hz geophone variation expansion figure 6 figure 10 ARMA 24 524 Evolution of seismicity at Malmberget Mine Jonsson, K. LKAB, Malmberget, Sweden Dineva...
Proceedings Papers

Paper presented at the 58th U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2024
Paper Number: ARMA-2024-0666
... conditions during drilling the operation such as PDC bit wearing and stick-slip vibration, etc. In this paper, data of relationship between torque, rate of penetration (ROP) signal and weight on bit (WOB), rev were obtained through lab simulation experiment, after which, a relationship database of torque...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0388
... load may lead to increase of the fluctuation of PDC cutter contact force and peak force value; Increasing the amplitude of composite impact load both in horizontal and vertical directions, or only increasing the amplitude of horizontal impact load, has a significant effect on suppressing the vibration...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0521
... ABSTRACT Drilling vibrations can cause inefficient drilling and accelerated damage to system components. Therefore, reducing or eliminating such vibrations is a major focus area for natural gas and geothermal drilling applications. One particularly important vibration mode is stick-slip. Stick...
Proceedings Papers

Paper presented at the 57th U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2023
Paper Number: ARMA-2023-0271
... across vendors and disciplines (e.g., hydraulic and pressure management, directional drilling, mechanical integrity of the drilling system, and vibration mitigation). Despite the rise of closed-loop automation, however, there is a lack for a scalable tool or platform that can orchestrate multiple digital...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0143
... ABSTRACT: Drilling string vibration data is a high-density ancillary data and it has the advantages of low-latency and low-cost which can be acquired in real time. In this study, vibration dataset is used as signal source, and the original vibration signal is filtered by Butterworth (BHPF...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0357
... ABSTRACT: The drill bit with central stinger element assisted by axial vibration has achieved a good rate of penetration in granite and diorite formation in China, but the study on the theoretical rock breaking mechanism of this bit is still insufficient. To better understand the rock-breaking...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0409
... prediction model is proposed. The results show that when stick-slip occurs, the amplitude of triaxial acceleration vibration is larger, the power spectrum density is smaller than normal drilling, and there are apparent peaks. The triaxial acceleration is a stationary non-white noise sequence. The stick-slip...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0538
... ABSTRACT: In the sliding steerable drilling operation in long horizontal wells, vibration drag-reduction tools can greatly reduce tubular drag, effectively alleviate frequent pipe sticking problem and improve rate of penetration. The excitation parameters and installation parameters...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0756
... ABSTRACT: A project for monitoring, analysis, and modelling trim blasting at an open pit copper/molybdenum mine in Canada in 2021 was conducted using Orica’s in house developed proprietary tools, which includes the accelerometer near-field vibration monitoring system, the Multiple Seed...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-0012
... in a manner simpler than the current use of stress as a controlling parameter. reservoir characterization wellbore design displacement artificial intelligence modeling metals & mining upstream oil & gas mbf model reservoir geomechanics blast modeling blast vibration geometry charge...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1030
... is highly desirable. To obtain fine fragmentation, it is often required to use blast designs with favorable energy concentration through explosive loading or blasthole delay timing. Such blast designs have potential to cause high blast vibration at highwalls or nearby community. A systematic blast...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1395
... vibration is usually missing, and also the polarization of single-component signal cannot be analyzed. All these render it difficult to make comprehensive analyses of acoustic emission waveforms and thus hinder the understanding of the mechanical properties of rupture sources. Since polarization analysis...

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