... sandstone sample annual meeting electrical conductivity resistance porosity geothermal exploration formula saturation effect resistivity reservoir characterization geothermal reservoir electrical resistivity coefficient References References Archie , G. E. , 1942...

... fractured sample p-wave anisotropy parameter geophysics p-wave anisotropy saturation water saturation effect chapman porous rock saturation effect reservoir characterization theoretical model characterisation dispersion anisotropy fractured rock model fracture partial gas...

.... We have also argued that the shear modulus of kerogen is around half of the bulk modulus. grain density rock physics lab upstream oil & gas saturation effect kerogen university reservoir characterization elastic property reservoir geomechanics kerogen sample bulk modulus equation...

... Summary When S-wave velocity is absent, approximate Gassmann equation using P-wave modulus is recommended by Mavko (1995) to calculate the fluid saturation effects. Using both lab data and log data, our study shows that the approximate Gassmann equation might introduce significant error...

... is modeled using a generalization of ideas presented in the paper by Schoenberg and Sayers (1995) to describe the stress, pore pressure, permeability and saturation effects upon seismic. attenuation pore space aperture permeability upstream oil & gas reservoir characterization saturation...

... Summary Ultrasonic velocities, densities and porosities for a set of coal and surrounding silty coal, silty shale, and shaly coal samples were measured in laboratory. The pressure effect, temperature effect, and saturation effect on velocities and anisotropy were evaluated. The results were...

... ABSTRACT A new methodology to discriminate between pressure and saturation effects is successfully applied to the Paleocene turbidite sands of the Foinaven field, West of the Shetland Isles. Two independent elastic parameters, one of which depends on pressure and the other on saturation...

... that while the the pore pressure affect the general reflectivity, it has only a minor effect on the AVA. In a fluid flow simulation experiment we found that the changes in P-wave velocity was dominated by saturation effects in the early production stage, but that pressure effects dominated in the later stage...

... Hydrocarbon Indicators (DHIs). Unfortunately, it is often the culprit of choice when no other reason can be found. However, progress has been made in assessing the problem. We have systematically examined physical properties of fluid and rock, and fluid interaction with rock to examine gas saturation effect...

... Summary For isotropic, homogeneous porous materials, Gassmann’s (1951) equations are physically constrained by the Voigt and Reuss bounds and critical porosity. . These bounds provide stricter constraints on input parameters and output results of fluid saturation effects on bulk modulus. We...

..., seismic evaluation of gas saturation is possible. impedance fizz water gas saturation bubble point water velocity colorado school houston reservoir characterization upstream oil & gas low gas research center high pressure saturation effect evaluation batzle mpa gas distribution...

... ABSTRACT No preview is available for this paper. reservoir characterization limestone khz experiment frequency wave velocity dispersion geophysics upstream oil & gas saturation effect experimental result fluid distribution water saturation transducer saturation...

... ABSTRACT No preview is available for this paper. saturation saturation effect drainage acoust berea sandstone extensional wave attenuation cs upstream oil & gas geophy dependence fluid saturation effect pore fluid fluid dynamics flow in porous media frequency...

... ABSTRACT No preview is available for this paper. sandstone borehole geophysics 1 seismic method reservoir characterization well logging beaver sandstone hydrocarbon saturation effect temperature range saturation shear wave velocity compressional wave velocity porosity...