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Keywords: wave velocity
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Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-048
... Reservoir Characterization wave velocity Earthquake rock mass metals & mining Rock mechanics Peng Montreal statistical calculation result Yang Upstream Oil & Gas safety assessment apparent stress application energy index Chen microseismic event international congress...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-085
... field is often assumed to be uniform around an excavation. However, it is observed that wave velocities near mine openings are not constant, but rather non-uniform. Wave velocity in a rock mass depends on many factors such as rock quality and confinement. In particular, confinement has a large influence...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-389
... resonant frequency resonant column experiment resonant column apparatus Reservoir Characterization displacement numerical simulation strain level vibration frequency wave velocity application jointed rock rock mechanics isrm13 Upstream Oil & Gas 13th international congress...
Proceedings Papers

Paper presented at the 13th ISRM International Congress of Rock Mechanics, May 10–13, 2015
Paper Number: ISRM-13CONGRESS-2015-384
... fracture model of specimen under different pressures and different angles were carried out. The variation of p-wave velocity in fractured rock mass and axial stress-strain relationship in the whole test procedure was also studied. Based on damage mechanics principle and the acoustic wave propagation...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-154
..., are postulated. Upstream Oil & Gas wave velocity compression test Poisson Engineering variation mechanical property reservoir geomechanics strength sandstone compressive strength high temperature reduction uniaxial compression test Reservoir Characterization thermo-mechanical...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-242
... ABSTRACT An experimental investigation have been conducted on the relationship between swelling, swelling pressure, compressional and shear wave velocities, plastic behavior and deformation characteristics of Barnett, Haynesville, Woodford gas shales, Pierre and North Sea shales...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-225
... particulate media are determined. Reservoir Characterization wave velocity assembly arrangement wave propagation Upstream Oil & Gas particle investigation stress WAVE PROPAGATION waveform Engineering micromechanical model amplitude rock mass frequency mechanics stiffness...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-101
... ABSTRACT The continuous evolution of damage of a porous limestone was studied during short-term uniaxial compression tests and uniaxial multi-step creep tests. An experimental device, allowing the simultaneous and continuous measurement of five elastic wave velocities in two different...
Proceedings Papers

Paper presented at the 12th ISRM Congress, October 16–21, 2011
Paper Number: ISRM-12CONGRESS-2011-136
... in different directions. First of all, a plate shaped block which is parallel to the bedding plane was prepared. Then, totally 12 core specimens were taken from the block. P wave velocity test and uniaxial compression test were performed for the naturally dried specimens. Another plate shaped block which...
Proceedings Papers

Paper presented at the 11th ISRM Congress, July 9–13, 2007
Paper Number: ISRM-11CONGRESS-2007-114
... environment experiment creep reservoir geomechanics brittle failure Inada granite differential stress granite time-dependent damage growth Reservoir Characterization wave velocity tertiary creep creep test axis tunnel inelastic volumetric strain longitudinal wave velocity 11th Congress...
Proceedings Papers

Paper presented at the 11th ISRM Congress, July 9–13, 2007
Paper Number: ISRM-11CONGRESS-2007-248
... such as density, wave velocity and Young's Modulus decreases with the increase in the temperature applied. An increase in strain rate is obtained from the same pressure with the increase of temperature applied. The effect of high strain rate has shown that with the increase of strain rate, there is an increase...
Proceedings Papers

Paper presented at the 10th ISRM Congress, September 8–12, 2003
Paper Number: ISRM-10CONGRESS-2003-193
... waves in rock is depend on different parameters such as mineralogy, grain size, density, porosity, weathering, stress level, water absorption, water content and temperature. In this research, it is tried to find some relationships between elastic waves velocities and some of the above parameters. Also...
Proceedings Papers

Paper presented at the 10th ISRM Congress, September 8–12, 2003
Paper Number: ISRM-10CONGRESS-2003-174
... (wave velocity) was examined. The rock samples were also tested at successively higher confining pressures in order to evaluate the effect of anisotropic behaviour at high overburden pressures. L' anisotropie characterise les roches foliees (schistes, gneiss, phyllades). Dans ce travail des essais en...
Proceedings Papers

Paper presented at the 9th ISRM Congress, August 25–28, 1999
Paper Number: ISRM-9CONGRESS-1999-182
.... This study compares the changes of effective elastic moduli of rock under compression obtained by measuring the seismic wave velocities under load and by using a crack model. The laboratory tests were conducted to measure P- and S-wave velocities at different stress levels with directions. In the modeling...
Proceedings Papers

Paper presented at the 9th ISRM Congress, August 25–28, 1999
Paper Number: ISRM-9CONGRESS-1999-264
... RMR geophysical measurement construction deformability Upstream Oil & Gas seismic wave evaluation tunnel Reservoir Characterization wave velocity investigation geophysical classification index kfg continuity tettonic dislocation 1700 foundation KFG medium layered sand-7 8...
Proceedings Papers

Paper presented at the 9th ISRM Congress, August 25–28, 1999
Paper Number: ISRM-9CONGRESS-1999-254
... Upstream Oil & Gas sensitivity borehole surface sensor vibration sensor super elastic alloy hirata rock surface Reservoir Characterization wave velocity pipe VSP probe tunnel pressure force compact vsp probe borehole Probe estimation rock mass quality Estimation...
Proceedings Papers

Paper presented at the 9th ISRM Congress, August 25–28, 1999
Paper Number: ISRM-9CONGRESS-1999-266
... of hydraulic construction. Wellbore Design structural plane rockmass excavation Reservoir Characterization water resource committee changjiang river water resource committee disturbance Upstream Oil & Gas Gorge Project acoustic wave velocity rock block mechanics wellbore integrity...
Proceedings Papers

Paper presented at the 8th ISRM Congress, September 25–29, 1995
Paper Number: ISRM-8CONGRESS-1995-043
.... Generally, sandstone has bedding planes, and P wave velocity is minimum in a direction perpendicular to the planes. P wave velocity in our specimen under atmospheric pressure were 2.94l±0.007km1sec in a direction perpendicular to bedding planes and 3.161 ± 0.096km/sec in a direction parallel to the plane...
Proceedings Papers

Paper presented at the 6th ISRM Congress, August 30–September 3, 1987
Paper Number: ISRM-6CONGRESS-1987-072
... correlation video tape recorder fresh granite hydraulic fracturing wave velocity borehole wall colour variation Colour Image New system for borehole TV logging and evaluation of weathered granites according to their colour indices Nouveau systsme de diagraphie des sondages et evaluation des granits...
Proceedings Papers

Paper presented at the 6th ISRM Congress, August 30–September 3, 1987
Paper Number: ISRM-6CONGRESS-1987-096
... part, down to some 50–60 m, the massif is unloaded due to unexpected decrease of the vertical component бz = бI =γh, where: γ - volume weight, h - thickness of the above laying rock (Savich et al. 1981). Upstream Oil & Gas alteration correspond fluctuation wave velocity Savich...

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