... reservoir characterization strength coulomb failure criterion ruhr sandstone sample linear friction envelope reservoir geomechanics strain-rate dependence failure criterion byerlee principal stress upstream oil & gas criteria sandstone experimental study structural geology...

... New experimental tests on 18 tight gas sandstone samples from a Saudi Arabia field show a strong dependence of both Vp and Vs on hydrostatic confining stress that varied from practically zero to 50 MPa. The absolute permeability k of the same samples was measured in the same stress range...

... compression test). The additional parameter enables the resolution of a long-known inconsistency between Gassmann’s result and effective medium theory. The correct expression, with its additional parameter, is required to analyze the fluid-dependence of rock incompressibility for all macro-isotropic rocks...

... ABSTRACT The understanding of the dependence of elastic properties of sedimentary rocks on the type of pore filling is of a significant importance for exploration and development of hydrocarbon deposits. In recent years, in connection with increasing attention to the exploration of heavy oil...

... ABSTRACT Changes in seismic two-way travel time in the overburden can be attributed to pore pressure changes in the underlying reservoir. Since cap rock permeability is very small, these stress changes occur without drainage on short term, which means that, depending on stress path, pore...

.... The strong variation of velocity with clay content at high temperature is not due to varying porosity, as indicated by the dependence of density on clay content. The pattern of clay-velocity variation is consistent with increasing clay-mineral orientation with increasing clay diagenesis. One practical...

... publications. Presentation Date: Wednesday, October 19, 2016 Start Time: 8:00:00 AM Location: 146 Presentation Type: ORAL dependence vertical cross-section upstream oil & gas lower panel compaction top reservoir data example hatchell velocity change model 2 prediction strain component...

... shapiro annual meeting orthorhombic medium porosity deformation approach anisotropy parameter geophysics upstream oil & gas mayr shale elastic parameter reservoir characterization anisotropy seg seg international exposition experimentally radial direction dependence hti...

... 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...

... dependence equation upstream oil & gas compliant part reservoir characterization porosity stress dependence relation fluid dynamics stress-dependent permeability stiff porosity shapiro elastic moduli geophysical research pore space pressure dependence stimulation dependency...

... dependence variation oscillation fontainebleau sandstone fortin attenuation frequency frequency dependence elastic property pore pressure transition saturation hydraulic diffusion property upstream oil & gas fontainebleau sample geophysics dispersion apparatus reservoir...

... extraction in producing fields. The aim of this work is to better understand and quantify the dependence of elastic moduli and extensional attenuation on water saturation in a limestone sample. We present the results of laboratory measurements of moduli and extensional attenuation conducted on dry and water...

... the information about dependence between two random variables adequately. This paper proposed a coherence algorithm of discontinuities measure for 3-D seismic data based on nonlinear correlation as rank correlation (Kendall’s tau). This method has a higher resolution to detect minor discontinuities in seismic...

... Summary In seismic survey design the maximum acceptable stretch factor is often used as a basis for computation of the mute offset, and ultimately, for the choice of maximum offset of the geometry. The formula that is commonly used does not take the dependence of the rms-velocity V rms...

... Summary Parameters related to seismic and ultrasonic elastic waves traveling through a porous rock material with compliant pores, cracks and isometric pores are subject to variations which are dependent on the physical properties of the rock such as density, porosity, permeability, frame work...

... reservoir characterization modulus anisotropy sondergeld rock strength anisotropy moduli anisotropy ratio seg houston 2013 upstream oil & gas orientation angle dependence reservoir geomechanics Experimental study of rock strength anisotropy and elastic modulus anisotropy Qinglu Cheng*, Carl...

... & gas porosity pore body pore channel permeability capillary tube model dependence pore application reservoir characterization carbonate Carbonates with complex pore systems Modeling of permeabilities and application of modified capillary tube models Edith Müller-Huber* and Jürgen Schön...

... basin, Colombia. A frequency-dependence law was detected for the attenuation estimations in the frequency bands 18-32 Hz, 28-42 Hz, 28-42 Hz and 38-52 Hz: Q -1 ( f ) = 0.0905 f (-942±0.001) . Spatial distribution of attenuation anomalies matches with surficial projection of hydrocarbons compartments...

... in the precritical regime. The formulation permits several observations pertinent to AVO to be made, regarding 1. The non-negligible importance of target V P to mode conversions, i.e., the angle dependence of R PS ; 2.The importance of the number V P V S = 2 to all elastic reflection coefficients; 3...

... dimensionality variation reservoir characterization attractor seismicity autocorrelation function dependence geothermal reservoir friction law fluid injection fractal dimensionality 4 attractor appearance time series shear stress seismic regime geyser geothermal area Fluid injection related...