... Understanding the influence of shale on dielectric permittivity measurements is crucial for effective geophysical exploration and reservoir characterization. The dielectric permittivity of shale, influenced by factors such as mineral composition, porosity, and fluid content, is a significant...

... structural geology saturation low cation exchange capacity applied geoscience upstream oil & gas dielectric response interpretation brine reservoir characterization shale rock american association dielectric permittivity salinity mineral exploration geophysicist society...

... The Moon’s deeper subsurface layers beyond the regolith are not well-studied. Using data from Change’E-3 Yutu rover’s lunar penetrating radar (LPR), we invert for its subsurface dielectric permittivity (ε r ) model. We use convolutional neural network based deep learning architecture to train...

... of the dielectric permittivity for each experiment. Despite the simplified approach, there is a good match between the inverted results and the values available in the literature for similar scenarios. Rather than suggesting a true quantitative procedure, these observations could be exploited in a qualitative long...

... a strong dependence of both real and imaginary dielectric permittivity on specific surface area. In this borehole, a negative correlation between the dielectric response of shale pastes and P-wave velocity of intact preserved shale samples was observed, hinting at mineralogical and associated hydration...

... houston 2013 well control sand model dielectric permittivity porosity model dataset seismic tomography inversion porosity log reservoir characterization upstream oil & gas inversion scenario tomography heterogeneous alluvial aquifer prediction Modeling the porosity of a heterogeneous...

... recently shown promise for improving studies of gas storage and release in peatlands. We investigated the relationship between dielectric permittivity and volumetric water content in organic peat soil using ground-penetrating radar. We developed a novel approach for controlling water content using...

... is composed of a coaxial line probe (figure 1), a network analyzer and PC. The amplitude and phase of the incident and reflected electromagnetic wave at the plane of contact between the probe head and the sample are used to calculate the dielectric permittivity. The probe was calibrated with open, short...

... of reflection seismology. We write foward scattering (Born) series and inverse scattering series expressions appropriate for a single component of a vector radar signal scattering from 3D dielectric permittivity and conductivity perturbations. We then reduce to line sources and line receivers overlying depth...

... waves may arrive before direct waves. A more accurate analysis of the ZOP data, which considers the effects of refracted waves in the measurements, is required for estimating the spatial distribution of water contents. In this paper, we present a dielectric permittivity inversion approach using singular...

... be accurately characterized with GPR velocity alone. Measuring the frequency dependence of GPR signal attenuation provides a direct estimate of the complex dielectric permittivity. This additional parameter allows measurement of liquid water content, snow density, and SWE. At two field sites, the new method...

... correspond dielectric permittivity georadar data synthetic data equation reservoir characterization maxwell dominant wavelength upstream oil & gas holliger crosshole georadar data inversion geophysics waveform inversion seismic reflection data tarantola algorithm anomaly...

..., especially the phase shift of the HEM signal due to the finite light speed that describes the propagation of the EM wave in the free space. In this paper, based on a full solution of EM field for a conductive, magnetically and dielectrically polarisable earth and an air of free-space dielectric permittivity...

... ABSTRACT Both magnetic susceptibility and dielectric permittivity affect frequency-domain electromagnetic data. These geological parameters can be derived from multi-frequency EM data, and contain information about the geology in addition to the traditional electrical conductivity and total...

... in cylindrical coordinates. An important feature of this algorithm is the use of a powerful grid refinement technique that enables us to account efficiently for detailed design aspects of georadar antennas as well as materials with very high dielectric permittivities. This type of modeling provides the basis...

... propagation distance distortion radiation pattern antenna dielectric permittivity electric dipole reservoir characterization stochastic fluctuation Effects of stochastic heterogeneity on the tomographic inversion of crosshole georadar data Klaus Holliger* and Hansruedi Maurer, Institute...

... dielectric permittivity properties. The presence of these liquids in the pore spaces of unconsolidated sediments results in a decrease in the bulk dielectric permittivity of the material when groundwater is displaced. Soil layers exhibiting lower dielectric permittivities result in high electromagnetic (EM...

... Summary Resistivity survey was executed in the test bed which is designed in advance to be informed dielectric permittivity distribution(It is for find out dielectric permittivity distribution versus depth in the ground) of GPR survey. Through the resistivity range versus depth, it is to make...

... characterization mapping resistivity frequency flow in porous media dielectric permittivity plane quadrature half-space model 3-D parameter-space electromagnetic mapping using helicopter-borne systems Haoping Huang* and Douglas C. Fraser Geoterrex-Dighem, a division of CGG Canada Ltd. Summary...

... ABSTRACT No preview is available for this paper. apparent relative permittivity upstream oil & gas dielectric permittivity em system resistivity em data permittivity flow in porous media apparent permittivity fraser apparent resistivity half-space model inphase...