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Keywords: monitoring
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Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0695
... the field monitoring data due to the subjectivity of the selection of rock mechanics parameters, the uncertainty of surrounding geological conditions, the variability of the construction process, and the limitation of mesh distorting in numerical calculation. Therefore, it is practically essential...
Proceedings Papers

Paper presented at the 56th U.S. Rock Mechanics/Geomechanics Symposium, June 26–29, 2022
Paper Number: ARMA-2022-0406
... ABSTRACT: Passive seismic monitoring can assist in mapping the generated hydraulic fracture network and determining the fracture source mechanisms during fluid stimulation operations. While this is the most applied technique that provides critical information, it has certain limitations which...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1847
.... As the CO 2 saturation increases, a steady decrease in acoustic velocities was observed. The fluid sensitivity effect (up to −10% and −12% for Vp and Vs, respectively) was observed up to 70% CO 2 /brine saturations which will be beneficial for seismic-based monitoring post-CO 2 injection. 1...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2027
... ABSTRACT: Concerns about seismic hazards associated with fluid injection necessitate close monitoring of geothermal reservoirs to anticipate and minimize the threat of induced earthquakes. Here, we apply machine learning to a series of datasets from laboratory-scale friction experiments...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-1609
... Abstract Secure CO 2 geological storage necessitates robust monitoring methods to provide assurance of CO 2 storage. Pressure monitoring above the injection zone is a method to detect potential CO 2 leaks into overlying formations. We built a CO 2 storage model to characterize pressure...
Proceedings Papers

Paper presented at the 55th U.S. Rock Mechanics/Geomechanics Symposium, June 18–25, 2021
Paper Number: ARMA-2021-2076
... Abstract Adverse ground behavior is a hazard to both personnel and non-human assets in any underground mine. Traditional visual inspections and embedded or static instruments are not well-suited for mine-wide digital data collection and geotechnical monitoring. This paper investigates emerging...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-2878
... ABSTRACT: The failure of slopes and dams has major consequences worldwide, including extensive damage to infrastructure and related economic losses and, in the worst case, loss of life. The ability to monitor and forecast failure is a major concern for risk management and it is often hindered...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0259
... mechanism. Monitoring the wetting range of water injection is key to study the anisotropic coal seam wetting law, water–gas displacement mechanism, pore fracture structure wetting characteristics, and other important theories. However, only a few studies are conducted on high-precision monitoring of sample...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0366
... ABSTRACT: The combination of active ultrasonic monitoring and Digital Image Correlation (DIC) was used to detect and characterize crack initiation and growth in pre-cracked rock specimens. Uniaxial compression tests were conducted on prismatic Lyon Sandstone specimens with one oriented flaw...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0382
... to be adequately dealt with to still achieve the economic benefits. Reservoir Characterization drilling operation wellbore integrity annular pressure drilling loss event machine learning Artificial Intelligence Upstream Oil & Gas mechanism ECD monitoring failure mechanism well control...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0021
... & Gas acoustic emission monitoring monitoring American Rock mechanics Association Reservoir Characterization tight gas injection pressure experiment Injection Rate waveform Artificial Intelligence complex reservoir rock mechanics association specimen laboratory hydraulic fracture stress...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1345
...-circuiting, and premature thermal breakthrough. In the EGS Collab project, we are establishing a suite of highly monitored and well characterized intermediate-scale (~10-20 m) field test beds along with fracture stimulation and interwell flow tests to better understand processes that control formation...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-473
... ABSTRACT: Laboratory-scale experiments were performed on cubic shale specimens containing multiple bedding planes (BPs) to investigate into dynamics of hydraulic fracturing. Acoustic emission (AE) monitoring and computerized tomography scanning techniques were used to analyze the failure...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-865
... seismicity. A Canada Wide Seismic Monitoring Survey was used to gather data pertaining to the current state of seismic monitoring in Canadian hard rock mines. This paper presents the initial survey results with a focus on: microseismic monitoring systems and data quality. metals & mining canadian...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-991
... ABSTRACT: A seismic monitoring case study is documented for stimulation of multiple wells completed in the Lower Montney Shale. A network of 4 broadband stations and 1 accelerometer were deployed and recorded numerous minor seismic events with moment magnitude between 0.5 and 2.8. Sequential...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-069
... experiment show that differing regions of the fracture network are actively changing throughout the extended term monitoring post-fracture. hydraulic fracturing Fluid Dynamics stimulation flow in porous media geothermal reservoir information density imaging result fracture network Reservoir...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1198
.... Upstream Oil & Gas Thickness Thompson MPa knowledge management strength arched barricade backfill metals & mining abutment consideration nonuniform geometry monitoring Symposium paste backfill barricade loading barricade design reduction stiffness rock mass 1. INTRODUCTION...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0646
... ABSTRACT: The acoustic emission/microseismic (AE/MS) monitoring technique continue to play a major role in providing a safe environment for mine operations. Be it a surface or underground mine operation, the life and safety of miners is constantly under threat due to uncertainties associated...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0820
.... These fractures, when monitored through active ultrasonic signals, tend to act as low-pass filters that attenuate the waveforms. In present study, active seismic monitoring was conducted on Lyon’s Sandstone specimens while they were subjected to uniaxial compression. A Lab-view controlled seismic system...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0654
... ABSTRACT: To assess the stability of large-scale underground caverns excavated in a layered rock mass with layers dipping steeply inside the surrounding rock, a high-resolution microseismic monitoring system was carried out in the right underground powerhouse of the Wudongde hydropower...

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