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Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 91 for “"capillary pressure"”.
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Capillary Pressure Effects in the Geological Storage of Carbon Dioxide
… the mudstone layers are continuous and have a capillary entry pressure. We show that discrete pools of CO2 may form below the mudstone horizons and that the pool depth is a function of both the capillary entry pressure and the flux of CO2 into a given layer. We assume that the maximum pool …
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Correlation between mercury injection and centrifuge capillary pressure measurement for sandstones
Includes bibliographical references (pages 59-61).
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Video imaging method for determining the capillary pressure relationship with a centrifuge
Includes bibliographical references (pages 91-92).
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An experimental investigation of some capillary pressure-relative permeability correlations for sandstone reservoir rocks.
… to predict these important parameters from capillary pressure measurements. This study has evaluated these models, and suggests now selecting and/or modifying the most appropriate one. A new model is verified including an error analysis against representative samples. A group of homogeneous …
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Study of Phase Behaviours of Reservoir Fluids with Consideration of Adsorption and Capillary Pressure
… the production process, with the change of pressure and temperature, the phase behaviours of reservoir fluids are then changed. Strictly speaking, the process of phase equilibrium occurs in the porous media of formation, and the effect of porous media cannot be neglected. In tight …
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The effect of pore size and porosity on capillary pressure in microporous hydroxyapatite samples
… the improvement is thought to be in part due to capillary forces induced by the micropores. The micropore-induced capillary forces can self load cells into the scaffolds. In this study, the effect of micropore size and porosity on capillary forces was investigated. Rectangular shaped HA samples …
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Calibrating NMR response to capillary pressure curves in fine grained lithologies: Pretty Hill Formation, Otway Basin
… resonance (NMR)-derived down-hole pseudo capillary pressure curves in very fine grained lithologies in order to determine whether it is possible to estimate capillary displacement pressures and thereby sealing capacity. Study conclusions are that T2 response in high iron content rock is …
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Development of a pore-scale model for simulating two and three phase capillary pressure-saturation relationships
Thesis (Sc. D.)--Massachusetts Institute of Technology, Dept. of Civil Engineering, 1991.
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Capillary pressure curve and liquid permeability estimation in tight oil reservoirs using pressure decline versus time data
… proposed to estimate saturation profiles and capillary pressure curves in conventional rocks, but these methods fail in tight rocks because of the complexities inherent in these types of reservoirs. This report presents a new method that makes use of the pressure decline versus time data to …
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Prediction of Capillary Pressure and Relative Permeability Curves using Conventional Pore-scale Displacements and Artificial Neural Networks
… during a drainage process in bundles of capillary tubes with randomly generated convex polygon cross-sections. In the beginning, we assume that capillary tubes are fully saturated with water and that they are strongly water-wet. Then, oil is injected to displace water during the primary …
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A Study of Residual Oil Saturation in Heterogeneous Sandstone Experiments
… of different parameters -heterogeneity, capillary pressure, mobility ratio, etc., to the oil recovery and residual oil saturation. To provide the important data for the numerical simulation, a porous plate experiment was conducted to construct capillary pressure curves from the capillary …
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Flow and Distribution of Water in Fractional Wettability Unsaturated Porous Media
… processes. In this research, mm- and cm-scale capillary pressure¡Vwater content experiments and computed x-ray microtomography (CMT) were used to obtain quantitative data describing drainage and the irreducible water distribution in fractionally-wet systems. The findings from this research …
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Effective properties of multiphase flow in heterogeneous porous media
… properties - nonwetting phase moisture content, capillary pressure, normalized saturation and permeability - was developed which is not specific as to the form of the permeability dependence on saturation or capillary pressure. This lack of specificity enables evaluation and comparison of …
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Multiphase flow and fault poromechanics : understanding earthquake triggering and seismic hazard
… we study the impact of confining stress on the capillary pressure behavior during drainage through rough fractures, where we find that capillary pressure variations are sensitive to the degree of confining stress and the degree of spatial correlation of the fracture aperture.
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Numerical Simulation of Multiphase Flow in Fractured Porous Media
… flow equations in fractured porous media. The capillary pressure is treated by an extended capillary pressure interface condition. The method is fully coupled and fully implicit and employs a mixed-dimensional formulation with lower dimensional elements in the fractures. The method features …
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Lattice-Boltzmann modeling of multiphase flow through rough heterogeneously wet fractures
… and surface roughness, with interfacial areas, capillary pressure, and residual fluid saturation were quantified. It has been shown that there is an effective heterogeneous feature size related to the fracture dimensions that modifies the capillary pressure behavior, and the shape of an invasive …
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Interface pinning of CO₂ gravity currents
… We show that interface pinning is caused by capillary pressure hysteresis, and the amount of pinning scales with the relative strength of capillarity relative to gravity, as measured by the inverse of the Bond number. We demonstrate that capillary pressure hysteresis in porous media is caused …
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A Novel Automatic History Matching Method and Upscaling Study of Cyclic Solvent Injection Process for Post-Chops Heavy Oil Reservoirs
… such as the relative permeability curve, capillary pressure, reaction rate in the foamy oil model and dispersion coefficient were investigated by numerical simulation. Sensitivity analysis illustrates that adding an appropriate capillary pressure in each test could refine the history …
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Investigation of Nanopore Confinement Effects on Convective and Diffusive Multicomponent Multiphase Fluid Transport in Shale using In-House Simulation Models
… effects that include large gas-oil capillary pressure and critical property shifts could alter the phase behaviors, thereby affecting the oil or gas production. In this research, two in-house simulation models, i.e., a compositionally extended black-oil model and a fully composition …
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