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Dataset results
15 results for “partially saturation”
Dataset for "Predicting the electrical conductivity of partially saturated frozen porous media, a fractal model for wide ranges of temperatures and salinities"
<p>This dataset supports the research study "Predicting the electrical conductivity of partially saturated frozen porous media, a fractal model for wide ranges of temperatures and salinities" by H. L. Luo, D. Jougnot, A. Jost, J. D. Teng, A. Mendieta, G. Lin, and L. D. Thanh.<br> We provide the experimental data of electrical condutivity and unfrozen water saturation with different initial water saturations and salinities. Meanwhile, we also offer the matlab code for calculating the predicted values of electrical conductivity and apparent formation factor.</p> <p>Each file has its header, describing each column.</p> <p> </p>
Partial Saturation Values for Sandstones Immersed in DI Water and Kerosene
<p>This dataset provides the partial saturation values (expressed as a percentage) for sandstone samples immersed in either deionized water or kerosene for 19 hours</p>
Dataset for "Seismic signatures of partial steam saturation in fractured geothermal reservoirs: Insights from poroelasticity"
<p>Dataset for "Seismic signatures of partial steam saturation in fractured geothermal reservoirs: Insights from poroelasticity". This dataset allows to reproduce the figures of the manuscript. Cite: Quiroga, G. E., Rubino, J. G., Solazzi, S. G., Barbosa, N. D., Favino, M., & Holliger, K. (2023). Seismic signatures of partial steam saturation in fractured geothermal reservoirs: Insights from poroelasticity. <em>Geophysics</em>, <em>88</em>(5), WB89-WB104.</p> <p> </p>
Modelling of static liquefaction of partially saturated non-cohesive soils - Supplementary Materials
<p><strong>Supplementary Material - Repository S1: Experimental data</strong></p> <p>Article title: Modelling of static liquefaction of partially saturated non-cohesive soils<br> Journal name: Applied Sciences</p> <p>Detailed data of undrained triaxial laboratory tests conducted on partially saturated samples of non-cohesive soils. <br> This spreadsheet contains values of initial parameter of each sample (saturation level, density and porosity, stress state and back pressure) and values of stresses, strains and pore pressure measured during the experiments. File includes also information about physical properties of tested soils: medium Skarpa sand and copper mining post-floating tailings OZM50.</p>
Dataset of "Modelling the Frequency-Dependent Effective Excess Charge Density in Partially Saturated Porous Media"
<p>This dataset supports the research study 'Modelling the Frequency-Dependent Effective Excess Charge Density in Partially Saturated Porous Media' by S. G. Solazzi, L. D Thanh, K. Hu, and D. Jougnot.</p> <p>We provide with a commented MATLAB code (Freq_Sat_SP.m) for estimating the frequency-dependent (i) effective excess charge density, (ii) the electrokinetic coupling coefficient, and (iii) the effective dynamic permeability for partially saturated porous media. The code allows to consider fractal, lognormal, and double lognormal pore size distributions.</p>
Dataset of: "Surface-Wave Dispersion in Partially Saturated Soils: the Role of Capillary Forces"
<p>This package contains the dataset of the paper entitled: Surface-Wave Dispersion in Partially Saturated Soils: the Role of Capillary Forces. Further information is given in the README files located within each folder.</p>
Experimental Data for "Seismic wave attenuation and dispersion due to partial fluid saturation: Direct measurements and numerical simulations based on X-Ray CT"
<p>Experimental Data from a Berea sandstone sample. Includes X-ray CT scans and mechanical response of sample.</p> <p>Abstract</p> <p>Quantitatively assessing seismic attenuation caused by fluid pressure diffusion (FPD) in partially saturated rocks is challenging because of its sensitivity to the spatial fluid distribution. To address this challenge we performed depressurisation experiments to induce the exsolution of carbon dioxide from water in a Berea sandstone sample. In a first set of experiments we used medical X-ray computed tomography (CT) to characterise the fluid distribution. At an equilibrium pressure of ~1 MPa and applying a fluid pressure decline rate of ~0.6 MPa per minute, we allowed a change in saturation of less than 1 %. The gas was heterogeneously distributed along the length of the sample, with most of the gas exsolving near the sample outlet. In a second set of experiments, at the same pressure and temperature, following a very similar exsolution protocol, we measured the frequency dependent attenuation and modulus dispersion between 0.1 and 1000 Hz using the forced oscillation method. We observed significant attenuation and dispersion in the extensional and bulk deformation modes, however not in the shear mode. Lastly, we use the fluid distribution derived from the X-ray CT as an input for numerical simulations of FPD to compute the attenuation and modulus dispersion. The numerical solutions are in close agreement with the attenuation and modulus dispersion measured in the laboratory. Our methodology allows for accurately relating attenuation and dispersion to the fluid distribution, which can be applied to improving the seismic monitoring of the subsurface.</p>
Electrical conductivity of partially saturated rock
Open the record for dataset details and reuse information.
Partially-Saturated Brines Within Basal Ice or Sediments can Explain the Bright Basal Reflections in the South Polar Layered Deposits
<p>Electrical property data</p>
Seismic wave propagation in partially saturated rocks with a fractal distribution of fluid-patch size
<p>Laboratory experiments on partially saturated rocks show that seismic attenuation can be significant, where the main mechanism is wave-induced local fluid flow (WILFF) due to patchy saturation at different spatial scales. We propose a theory to obtain the seismic properties of partially saturated rocks based on fractal (self-similar) patches, leading to an effective frequency-dependent fluid modulus. The model combines the differential effective medium (DEM) and Biot-Rayleigh theories, where the patches are inclusions incrementally added, such that the effective fluid is assumed the host for the next addition. The analysis shows that the seismic properties are independent on the number of iterations, but depend on the scale range (radius) of the inclusions, fractal dimension <em>D<sub>f</sub></em> of the self-similar distribution, parameter <span class="math-tex">\(\theta\)</span> of the exponential distribution, mean radius <em>r</em><sub>0</sub> and variance <span class="math-tex">\({\sigma_r}^2\)</span> of the Gaussian distribution. Forced-oscillation experiments are performed on a limestone sample under partial water-saturation conditions at seismic frequencies (2-500 Hz), to obtain the velocity dispersion and extensional attenuation. The proposed theory provides a reasonable description of the experimental data and other existing measurements on Berea sandstone and tight carbonates.</p>
Dataset for the manuscript of the "Investigation of CH4 permeability of microfractures in partially water-saturated shales"
<p>Dataset for the manuscript of the "Investigation of CH4 permeability of microfractures in partially water-saturated shales"</p>
Dataset of: "Seismic signatures of fractured porous rocks: The partially-saturated case"
<p>This package contains the data of the paper Solazzi et al. (2020). Further information is given in the README file.</p> <p>The software package for the oscillatory relaxation tests, called Parrot, is available upon request to the authors.</p>
Experimental investigation on the gas slippage in partially water-saturated shale fractures of different matric potentials
<p>Raw, original data for " Experimental investigation on the gas slippage in partially water-saturated shale fractures of different matric potentials<strong> </strong>" by in EXCEL and word file formats.</p>
Calibration of TDR probes for water content measurements in partially saturated pyroclastic slope
<p>The file contains raw and processed data. The raw data consists of measurements of the soil dielectric constant and the soil samples weight. The data was processed in order to relate the soil dielectric constant to the soil volumetric water content. The calibrated relations are also found in the file.</p>
Effect of Arterial Oxygen Partial Pressure on Mixed Venous Oxygen Saturation
ClinicalTrials.gov study NCT04144205. IPD Sharing: Not stated. Countries: 1. Publications: 0.
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