Relative permeability
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Pore-scale modelling and sensitivity analyses of hydrogen-brine multiphase flow in geological porous media Open
Underground hydrogen storage (UHS) in initially brine-saturated deep porous rocks is a promising large-scale energy storage technology, due to hydrogen’s high specific energy capacity and the high volumetric capacity of aquifers. Appropria…
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Contact angle measurement for hydrogen/brine/sandstone system using captive-bubble method relevant for underground hydrogen storage Open
Subsurface porous formations provide large capacities for underground hydrogen storage (UHS). Successful utilization of these porous reservoirs for UHS depends on accurate quantification of the hydrogen transport characteristics at continu…
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Beyond Darcy's law: The role of phase topology and ganglion dynamics for two-fluid flow Open
In multiphase flow in porous media the consistent pore to Darcy scale description of two-fluid flow processes has been a long-standing challenge. Immiscible displacement processes occur at the scale of individual pores. However, the larger…
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A comprehensive review of pore scale modeling methodologies for multiphase flow in porous media Open
Multiphase flow in porous media is relevant to amount of engineering processes, such as hydrocarbon extraction from reservoir rock, water contamination, CO2 geological storage and sequestration. Pore scale modeling, as an alternative appro…
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The Effect of Wettability Heterogeneity on Relative Permeability of Two‐Phase Flow in Porous Media: A Lattice Boltzmann Study Open
Relative permeability is a critical parameter characterizing multiphase flow in porous media and it is strongly dependent on the wettability. In many situations, the porous media are nonuniformly wet. To investigate the effect of wettabili…
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The water retention curve and relative permeability for gas production from hydrate‐bearing sediments: pore‐network model simulation Open
The water retention curve and relative permeability are critical to predict gas and water production from hydrate‐bearing sediments. However, values for key parameters that characterize gas and water flows during hydrate dissociation have …
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Minimal surfaces in porous media: Pore-scale imaging of multiphase flow in an altered-wettability Bentheimer sandstone Open
High-resolution x-ray imaging was used in combination with differential pressure measurements to measure relative permeability and capillary pressure simultaneously during a steady-state waterflood experiment on a sample of Bentheimer sand…
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Pore‐Scale Determination of Gas Relative Permeability in Hydrate‐Bearing Sediments Using X‐Ray Computed Micro‐Tomography and Lattice Boltzmann Method Open
This work uses X‐ray computed micro‐tomography (μCT) to monitor xenon hydrate growth in a sandpack under the excess gas condition. The μCT images give pore‐scale hydrate distribution and pore habit in space and time. We use the lattice Bol…
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Characterizing flow behavior for gas injection: Relative permeability of CO<sub>2</sub>‐brine and N<sub>2</sub>‐water in heterogeneous rocks Open
We provide a comprehensive experimental study of steady state, drainage relative permeability curves with CO 2 ‐brine and N 2 ‐deionized water, on a single Bentheimer sandstone core with a simple two‐layer heterogeneity. We demonstrate tha…
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Determination of the Magnetic Permeability, Electrical Conductivity, and Thickness of Ferrite Metallic Plates Using a Multifrequency Electromagnetic Sensing System Open
In this paper, an inverse method was developed which can, in principle,\nreconstruct arbitrary permeability, conductivity, thickness, and lift-off with\na multi-frequency electromagnetic sensor from inductance spectroscopic\nmeasurements. …
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Imaging and Measurement of Pore‐Scale Interfacial Curvature to Determine Capillary Pressure Simultaneously With Relative Permeability Open
There are a number of challenges associated with the determination of relative permeability and capillary pressure. It is difficult to measure both parameters simultaneously on the same sample using conventional methods. Instead, separate …
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Relative Permeability of Hydrogen and Aqueous Brines in Sandstones and Carbonates at Reservoir Conditions Open
Geological hydrogen storage in depleted gas fields represents a new technology to mitigate climate change. It comes with several research gaps, around hydrogen recovery, including the flow behavior of hydrogen gas in porous media. Here, we…
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Influence of small‐scale fluvial architecture on CO<sub>2</sub> trapping processes in deep brine reservoirs Open
A number of important candidate CO 2 reservoirs exhibit sedimentary architecture reflecting fluvial deposition. Recent studies have led to new conceptual and quantitative models for sedimentary architecture in fluvial deposits over a range…
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Hydrogen Relative Permeability Hysteresis in Underground Storage Open
Implementation of the hydrogen economy for emission reduction will require storage facilities, and underground hydrogen storage (UHS) in porous media offers a readily available large‐scale option. Lack of studies on multiphase hydrogen flo…
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Characterizing Drainage Multiphase Flow in Heterogeneous Sandstones Open
In this work, we analyze the characterization of drainage multiphase flow properties on heterogeneous rock cores using a rich experimental data set and mm‐m scale numerical simulations. Along with routine multiphase flow properties, 3‐D su…
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Impact of experimentally measured relative permeability hysteresis on reservoir-scale performance of underground hydrogen storage (UHS) Open
Underground Hydrogen Storage (UHS) is an emerging large-scale energy storage technology. Researchers are investigating its feasibility and performance, including its injectivity, productivity, and storage capacity through numerical simulat…
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Validation of model predictions of pore-scale fluid distributions during two-phase flow Open
Pore-scale two-phase flow modeling is an important technology to study a rock's relative permeability behavior. To investigate if these models are predictive, the calculated pore-scale fluid distributions which determine the relative perme…
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The Effect of Mixed Wettability on Pore‐Scale Flow Regimes Based on a Flooding Experiment in Ketton Limestone Open
Darcy‐scale multiphase flow in geological formations is significantly influenced by the wettability of the fluid‐solid system. So far it has not been understood how wettability impacts the pore‐scale flow regimes within rocks, which were i…
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Microscopic Determination of Remaining Oil Distribution in Sandstones With Different Permeability Scales Using Computed Tomography Scanning Open
To investigate the characteristics of oil distribution in porous media systems during a high water cut stage, sandstones with different permeability scales of 53.63 × 10−3 μm2 and 108.11 × 10−3 μm2 were imaged under a resolution of 4.12 μm…
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Enhanced oil recovery from carbonate reservoirs by spontaneous imbibition of low salinity water Open
An experimental study was performed to investigate the impact of low salinity water on wettability alteration in carbonate core samples from southern Iranian reservoirs by spontaneous imbibition. In this paper, the effect of temperature, s…
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Pore-scale X-ray imaging with measurement of relative permeability, capillary pressure and oil recovery in a mixed-wet micro-porous carbonate reservoir rock Open
Differential imaging X-ray microtomography combined with a steady-state flow apparatus was used to elucidate the displacement processes during waterflooding. We simultaneously measured relative permeability and capillary pressure on a carb…
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A FRACTAL MODEL FOR WATER FLOW THROUGH UNSATURATED POROUS ROCKS Open
In this work, considering the effect of porosity, pore size, saturation of water and tortuosity fractal dimension, an analytical model for the capillary pressure and water relative permeability is derived in unsaturated porous rocks. Besid…
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Capillarity and wetting of carbon dioxide and brine during drainage in <span>B</span>erea sandstone at reservoir conditions Open
The wettability of CO 2 ‐brine‐rock systems will have a major impact on the management of carbon sequestration in subsurface geological formations. Recent contact angle measurement studies have reported sensitivity in wetting behavior of t…
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Pore occupancy, relative permeability and flow intermittency measurements using X-ray micro-tomography in a complex carbonate Open
We imaged the steady-state flow of brine and decane (oil) at different fractional flows during dual injection in a micro-porous limestone, Estaillades, using X-ray micro-tomography. We applied differential imaging to: (a) distinguish micro…
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Pore network extraction from pore space images of various porous media systems Open
Pore network extraction, which is defined as the transformation from irregular pore space to a simplified network in the form of pores connected by throats, is significant to microstructure analysis and network modeling. A physically reali…
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Generalized network modeling of capillary-dominated two-phase flow Open
We present a generalized network model for simulating capillary-dominated two-phase flow through porous media at the pore scale. Three-dimensional images of the pore space are discretized using a generalized network-described in a companio…
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CO 2 –brine displacement in heterogeneous carbonates Open
The displacement of brine by CO2 is an important process controlling plume migration and initial pore-space utilization in geological CO2 storage. We present CO2–brine unsteady-state core flood experiments to characterize CO2–brine primary…
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Effective Medium Theory for Anisotropic Metamaterials Open
This dissertation includes the study of effective medium theories (EMTs) and their applications in describing wave propagation in anisotropic metamaterials, which can guide the design of metamaterials. An EMT based on field averaging is pr…
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Impact of Asphaltene Precipitation and Deposition on Wettability and Permeability Open
Asphaltene precipitation and deposition have been a formation damage problem for decades, with the most devastating effects being wettability alteration and permeability impairment. To this effect, a critical look into the laboratory studi…
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Fluid–rock interactions and its implications on EOR: Critical analysis, experimental techniques and knowledge gaps Open
Characterization of fluid–rock interactions is essential for a broad range of subsurface applications such as understanding fluid flow in porous medium and enhanced oil recovery predictions. Enhanced oil recovery (EOR) is crucial in oil an…