... the seismic anisotropy using a foliated and a non-foliated granite rock. We measure both velocities and attenuations with increasing confining pressures from 5 to 50 MPa in ultrasonic frequency bands. As the confining pressure increases, the results demonstrate significant increases in P-wave velocity and S...

.... reservoir characterization elastic stiffness shale mpa reservoir geomechanics saed friction amplitude applied geoscience moduli structural geology magnitude intercept fitting static young upstream oil & gas sre young saeu exploration geophysicist american association international...

... international exposition increasing-amplitude cyclic loading evolution reservoir geomechanics deviatoric stress static elastic property deviatoric stress level cycle number unload arm exploration geophysicist 10 moduli static poisson upstream oil & gas mpa poisson dynamic poisson stress...

... magnitude hildyard rutqvist esg solutions waveform mpa reservoir characterization mansuy thomas annual meeting seismicity seg international exposition seismic response ground vibration stiffness esg solution amplitude decay rupture surface upstream oil & gas ground velocity university...

..., 2018 Start Time: 9:20:00 AM Location: Poster Station 16 Presentation Type: Poster tendency seg international exposition mpa stress loading ultrasonic velocity anisotropy variation geophysics water injection velocity anisotropy procedure experiment longmaxi shale upstream oil...

... seg international exposition vertical effective stress change upstream oil & gas reservoir characterization global sensitivity analysis annual meeting seismic calibration mpa stress change effective stress change sensitivity analysis parameter space seismic data reservoir geomechanics...

... attenuation differential pressure permeability glycerol laboratory study experiment dispersion extensional attenuation reservoir characterization berea sandstone dispersion effect viscosity dependence upstream oil & gas frequency moduli gurevich mpa mikhaltsevitch seismic...

... spacings were considered between two hydraulic fractures: 35, 45, and 55 m. The SEG New Orleans Annual Meeting Page 5048 DOI httpdx.doi.org/10.1190/segam2015-5910114.1© 2015 SEG Double click here to type your header first hydraulic fracture length was 100 m and a constant net pressure equal to 4 MPa...

... elastic wave propagation specific stiffness coupling time delay orthogonal fracture network fracture intersection wavefront complex reservoir single fracture stiffness snapshot interface wave fracture network fracture mpa intersection amplitude fracture specific stiffness...

... Summary The velocities and densities of heavy oil mixed with hydrocarbon solvent (diluent 12 wt and propane 88 wt ) were measured and analyzed for a wide range of temperatures from 8°C to 90°C, pressures from 1 MPa to 48 MPa, and mixed hydrocarbon solvent from 5wt to 80wt . Velocities...

... seismic attenuation laboratory data attenuation curve fontainebleau sandstone viscosity tisato magnitude attenuation aspect ratio upstream oil & gas simple squirt flow model fluid flow compliant crack reservoir characterization frequency mpa dispersion Summary...

... oil & gas seismic wave attenuation sandstone permeability berea sandstone pore space attenuation mpa quintal geophysics laboratory measurement dispersion saturation tisato Laboratory measurements of seismic wave attenuation in Berea sandstone as a function of water saturation...

... fluid dynamics attenuation phase velocity type ii upstream oil & gas propagation compressional wave acoustical society wave propagation p-wave attenuation america porous solid kpa coefficient pw 100 frequency p-wave phase velocity kpa pw 5 flow in porous media mpa...

... characterization axis amplitude upstream oil & gas bentheim sandstone anisotropy particle displacement mpa inversion cubic sample displacement measurement point ultrasonic measurement birefringence Ultrasonic measurements of S waves using laser interferometry Michael Carson and Maxim Lebedev...

... and at low pore fluid pressures (=0.5 MPa). A peak in attenuation, quantified by the inverse quality factor 1/ Q , of 0.02 was observed at about 1.5 Hz. A similar experiment was performed for water-nitrogen saturation and, again, at low fluid pressures and near full water saturation, a peak in attenuation...

... micro-ct image bedding manco shale pyrolysis shale gas shale geophysics shale sample mpa microstructure complex reservoir maturity experiment upstream oil & gas moduli elastic property dynamic elastic property kerogen reservoir characterization vernik Effect of pyrolysis...

... and compared with velocities measured in pure brines in the range of temperatures (30 - 70 C), pressures (2 - 38 MPa) and salinities (0 -100,000 ppm). It has been found that CO2 dissolution significantly changes the acoustic properties of brine. This change can be accounted for by a simple linear empirical...

... and density of H 2 O-CH 4 -CO 2 miscible mixtures. temperature effect university correction gwr degassed water reduce velocity water velocity de-hua han mpa seg houston 2013 upstream oil & gas preliminary model correlation co 2 miscible mixture solubility ch 4 reservoir...

... rutledge mpa differential stress seg houston 2013 hydraulic fracturing fischer orientation mohr stress direction natural fracture hydraulic fracture source parameter amplitude ratio seismicity cotton valley fracture upstream oil & gas phillips mechanism stress field plane...

... <14 MPa attenuation is frequency dependent and as high as 0.08. Frequency dependent attenuation vanishes for higher confining pressure. Data modeling reveals that the most active mechanism generating such a behavior is the wave inducted fluid flow in the mesoscopic scale (Patchy saturation mechanism...