1-20 of 166
Keywords: frequency
Close
Follow your search
Access your saved searches in your account

Would you like to receive an alert when new items match your search?
Close Modal
Sort by
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0120
... ~ 6 times more than that for the specimens at room temperature. geothermal reservoir hdr specimen Loading Rate hydraulic fracturing heat-treated hdr specimen ae number AE event frequency fracture toughness Wang Upstream Oil & Gas SCB specimen fracture mechanics characteristic...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0349
... monitoring Artificial Intelligence frequency characteristic microseismic event Reservoir Characterization Upstream Oil & Gas hazardous microseismicity probability event count spatial distribution microseismicity Magnitude Modeling & Simulation forecasting Velenje forecasted...
Proceedings Papers

Paper presented at the 53rd U.S. Rock Mechanics/Geomechanics Symposium, June 23–26, 2019
Paper Number: ARMA-2019-0430
... considerable attention as an efficient method of rock breaking (T. Yan et al.,2012; X. Jiyou et al., 2004; Z. Ye and A. Ghassemi, 2018). By applying a dynamic impact force with an adjustable frequency to the rock, this technology is intended to realize a resonance state for the best rock fragmentation (W. Li...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1434
... Reservoir Characterization dynamic behavior excitation Slope Model landslide frequency displacement natural frequency table test dip slope Engineering weak plane critical acceleration Newmark slope angle accelerometer input excitation deformation Earthquake plane dip slope...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-432
..., amplitude, frequency, in-situ stress and fracture propagation direction on the maximum tensile stress at the tip of the fracture were studied, as well as the difficulty of opening and propagation of the fracture. The research results show that the maximum tensile stress increases with the increase of...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-257
... ABSTRACT: The difference in stress magnitude during (quasi-)static rock compression (typically of the order of 10 -3 m/m), and acoustic-wave propagation (typically<10 -6 m/m); The frequency dependence of the rock stiffness (dispersion). In laboratory studies, acoustic velocities...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-328
... the pore pressure will be. The elastic modulus and porosity have the same effects on the bottom rock. The higher the permeability of the rock, the faster the pore pressure drops down, which recommends an impact load with higher frequency. This study is instructive for understanding the variation of...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-812
... pore pressure enhancement flow in porous media permeable soil excitation reduction Blockage Reservoir Characterization Fluid Dynamics mechanism operation injection recharge permeability enhanced recovery Oil Recovery frequency particle application accumulation 1. INTRODUCTION Pore...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1103
... physical, mechanical, morphological, mineralogical, and dynamic behavior of different rocks under various ranges of temperature and loading conditions. They found significant reduction in compressive strength, tensile strength, shear strength, ARMA 18 1103 Effect of loading frequencies on the dynamic...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1228
... Reservoir Characterization frequency subsurface storage temperature-dependent elasticity Upstream Oil & Gas elasticity kHz elastic property cleveland quarry fracture segment Frequency shift reservoir rock resonant frequency resonance shift Pimienta Indiana limestone reservoir...
Proceedings Papers

Paper presented at the 52nd U.S. Rock Mechanics/Geomechanics Symposium, June 17–20, 2018
Paper Number: ARMA-2018-1235
... front. The peak frequencies of drying events in samples with and without clay were greater than the peak frequencies of events generated by induced cracking. Overall analysis of the different geo-architected rocks shows that the presence of clay has a significant effect on the extent and location of the...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0362
... configuration. The AEs are treated as laboratory earthquake proxies and analyzed to gather information about their frequency, magnitude, energy content and location. We monitor these source characteristics and report on their behavior during periodic and aperiodic stick-slips cycles. We also report on AE during...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0280
... effect of valve ports on the generation frequency and characteristics of drilling fluid continuous wave signal. Valve ports distribution is designed as multi-row along the axis and several along the circumference. Furthermore, a mathematical model is built to calculate the parameters of the valve port...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0334
..., 9.6 s, respectively. Test results show that: when the seismic duration is less than 1.44 s, the dam body has no obvious crack, and there is no change in the whole frequency. After the time of 3.2 s, crack appears at the bending position above the dam toe of downstream face, and the crack extends to...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0293
... frequency compliance dynamic measurement triaxial amplitude Reservoir Characterization mechanics geomechanics symposium Castlegate sandstone Poisson strain gage frequency measurement Upstream Oil & Gas non-elastic effect stress state Symposium fjær gage strain amplitude...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0483
... angles considering non welded interfaces in rocks. After validation with the ultrasonic pulse velocity tests, numerical models using UDEC were developed to simulate the wave propagation in jointed rocks. The numerical study was extended for multiple fractures over a range of ultra sonic frequencies. The...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0734
... propose the resolved global value of modulus adds relevant information describing the variation of elastic properties over scales from lab samples to in-situ rock masses. resonant frequency rainbow bridge Upstream Oil & Gas variation sensor rock mass modulus frequency Moore Utah...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0782
... to investigate the effects of the amplitude and the frequency of simple harmonic seismic loading on the horizontal and the lateral displacements of triangular prism, quadrangular prism, pentagonal prism and hexagonal prism. The results show the significant effects of seismic loading on the run-out...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0817
... Upstream Oil & Gas khz transducer setup Reservoir Characterization frequency attenuation assessment amplitude ultrasonic pulse velocity measurement ultrasonic transducer construction materials wavelength specimen laser vibrometer calibration application vibrometer separation...
Proceedings Papers

Paper presented at the 51st U.S. Rock Mechanics/Geomechanics Symposium, June 25–28, 2017
Paper Number: ARMA-2017-0820
... sampling frequency of 100 MHz was used to acquire seismic waveforms in real time. In the experiments, the effect of ultrasonic transducers on the seismic measurements was investigated using two different P-wave transducers. The transducers were coupled to the rock specimen at different locations along its...

Product(s) added to cart

Close Modal