Journal ArticlePhilosophical transactions. Series A, Mathematical, physical, and engineering sciences · September 2025
Advancements in deep learning (DL) and machine learning (ML) have improved the ability to model complex, nonlinear relationships, such as those encountered in complex material inverse problems. However, the effectiveness of these methods often depends on l ...
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Journal ArticleEnvironmental science & technology · June 2025
The use of inorganic nutrient fertilizers in crop agriculture is often inefficient due to rapid leaching of nutrients with percolating water in soil. To address this, a liposomal carrier was developed to slow transport and reduce leaching of inorganic nutr ...
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Journal ArticleCommunications engineering · April 2025
Porous media, ranging from bones to concrete and from batteries to architected lattices, pose difficult challenges in fully harnessing for engineering applications due to their complex and variable structures. Accurate and rapid assessment of their mechani ...
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Dataset · December 13, 2024
The dataset was obtained using high-resolution X-ray micro-CT scans with a TESCAN UniTOM XL scanner at Duke University’s Creativ Engineering Laboratory. Samples were secured with a custom core holder featuring a magnetic aluminum base and stabilized using ...
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Journal ArticlePhysics of Fluids · November 1, 2024
The primary objective of carbon capture, utilization, and storage (CCUS) applications in various natural and engineered porous materials is to achieve a stable and planar CO2 displacement front, thereby suppressing viscous fingering. A stable fr ...
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Journal ArticleSPE Journal · November 1, 2024
Segmentation of high-resolution X-ray microcomputed tomography (µCT) images is crucial in digital rock physics (DRP), affecting the characterization and analysis of microscale phenomena in the porous media. The complexity of geological structures and nonid ...
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Journal ArticleHydrology and Earth System Sciences · October 23, 2024
Subsurface non-isothermal fluid injection is a ubiquitous scenario in energy and water resource applications, which can lead to geochemical disequilibrium and thermally driven solubility changes and reactions. Depending on the nature of the solubility of a ...
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Journal ArticleComposites Part B Engineering · April 15, 2024
In this study, we discuss the methods used for depositing calcium carbonate (CaCO3) and the resulting 2D and 3D particle distributions of CaCO3 in two types of wood, which were quantified using scanning electron microscopy (SEM) and X ...
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Journal ArticleCement and Concrete Composites · July 1, 2023
In this paper, we investigate the feasibility of electrical capacitance tomography (ECT) to image rapid three-dimensional (3D) moisture transport in damaged portland cement mortar and concrete. ECT is a tomography method that uses inter-electrode capacitan ...
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Journal ArticleAdvances in Water Resources · March 1, 2023
Rock surface wettability is a critical property that regulates multiphase flows in porous media, which can be quantified using the surface contact angle (CA). X-ray micro-computed tomography (μCT) provides an effective approach to in-situ measurements of s ...
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Journal ArticleGeoenergy Science and Engineering · February 1, 2023
Corresponding author: Cheng Chenff Department of Civil, Environmental and Ocean Engineering, Stevens Institute of Technology, Hoboken, NJ, 07030, USA. The authors regret: In the published paper, the affiliation for the corresponding ...
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Chapter · January 1, 2023
Several postulates exist to potentially explain the formation of the Interfacial Transition Zone (ITZ) [1, 2, 3]. ITZ is a region at the interface between aggregates and the binder in concrete that is believed to be more porous; the interconnected thicknes ...
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Journal ArticleTransport in Porous Media · September 1, 2022
The contributions of the interfacial transition zone (ITZ) to mass transport in cement-based materials remain ambiguous and disputed. In this study, the neutron and X-ray tomography (NeXT) system is used to develop imaging techniques to capture unsaturated ...
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Journal ArticleJournal of Petroleum Science and Engineering · August 1, 2022
Three-dimensional (3D) X-ray micro-computed tomography (μCT) has been widely used in petroleum engineering because it can provide detailed pore structural information for a reservoir rock, which can be imported into a pore-scale numerical model to simulate ...
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Journal ArticleAdvances in Water Resources · July 1, 2022
Surface wettability is one of the major factors that regulate immiscible fluid displacement in porous media. However, the role of pore-scale wettability heterogeneity on dynamic immiscible displacement is rarely investigated. This study investigated the im ...
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Journal ArticleInternational Journal of Greenhouse Gas Control · May 1, 2022
In this study, we investigate carbonate formation and reactive transport rate in variably saturated portland cement mortars when high concentrations of gas, liquid, or supercritical CO2 flow through their pore network. X-ray computed tomography ...
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Journal ArticleAdvances in Water Resources · December 1, 2020
This study characterized and modeled heterogeneous surface wettability in sandstone and investigated the role of spatial heterogeneity and correlation length of surface wettability on relative permeability in a supercritical CO2 (scCO2
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Journal ArticleGeophysical Research Letters · September 28, 2020
Understanding the wettability of porous materials is important to model fluid flow in the subsurface. One of the critical factors that influences wetting in real reservoirs is the composition of geologic materials. The wetting properties for clay minerals ...
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Journal ArticleInternational Journal of Greenhouse Gas Control · September 1, 2020
The purpose of this study is to quantify geochemical reactions of CO2 and brine with subsurface samples taken from the Mt. Simon sandstone and identify any potential alterations of the geomechanical rock properties that could lead to changes obs ...
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Journal ArticleTransport in Porous Media · July 1, 2020
In this study, we investigate the secondary sorption in an air-entrained Portland cement mortar that is purged with different gases—CO 2, CH 4, or N 2. By altering the gas phase present in the void space, we are able to eva ...
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Journal ArticleEnergy and Fuels · May 21, 2020
In this study, contact angles were measured for CO2 bubbles on six different sandstones (Navajo, Nugget, Bentheimer, Bandera Brown, Berea, and Mt. Simon) that could potentially represent properties of CO2 storage depositional environments. The impacts of p ...
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Journal ArticleTransport in Porous Media · May 1, 2020
Numerous sessile drop and micro-computed tomography (micro-CT) studies have been conducted to quantify geologic carbon storage formation wettability by measuring static contact angles (θ); however, the influence of pore geometry remains unknown. In this wo ...
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Journal ArticleGeochimica Et Cosmochimica Acta · February 15, 2020
We report a series of acidified brine flow-through experiments designed to quantify the coupled alteration of geochemical, structural and fluid transport properties of a Mt. Simon sandstone core recovered at a depth of 2110.5 m as part of the Illinois Basi ...
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Journal ArticleGeofluids · January 1, 2020
During a Geologic Carbon Storage process, supercritical CO2 (scCO2) is subjected to a series of dynamic and static conditions where the relationship between pore geometry and the trapped scCO2 curvature remains to be establ ...
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Journal ArticleFuel · September 15, 2019
Multiphase flow in porous media is of great interest in many engineering applications, such as geologic carbon sequestration, enhanced oil recovery, and groundwater contamination and remediation. In order to advance the fundamental understanding of multiph ...
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Journal ArticleGreenhouse Gases Science and Technology · June 1, 2019
Geological carbon storage (GCS) refers to the technology of capturing man-made carbon dioxide (CO2) emissions, typically from stationary power sources, and storing such emissions in deep underground reservoirs. GCS is an approach being explored ...
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Journal ArticleSPE Drilling and Completion · March 1, 2019
Computed-tomography (CT) scanning has become a mainstay among scientists (Wildenschild and Sheppard 2013) because it enables nondestructive observation of material processes and formation in real time. Foamed cement is a high-strength, low-density material ...
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Journal ArticleAdvances in Water Resources · December 1, 2018
Numerous methods are used to measure contact angles (θ) in multiphase systems. The wettability and θ are primary controls on CO2 residual trapping during Geologic Carbon Storage (GCS) and determining these values within rock pores is paramount t ...
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Journal ArticleEnvironmental Engineering Science · May 1, 2018
An experimental study to probe the geochemical interactions of CO2/brine/rock system under geologic CO2 storage conditions was performed in a static reaction system. Marine shale (primary sealing formation) and Lower Tuscaloosa sandst ...
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Journal ArticleACI Materials Journal · January 1, 2018
The American Petroleum Institute (API) Recommended Practice 10B-4 is the industry standard for measuring foamed cement stability; however, it does not incorporate the effects of elevated pressure or placement. Using high-resolution computed tomography (CT) ...
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ConferenceProceedings of the Annual Offshore Technology Conference · January 1, 2015
The National Energy Technology Laboratory (NETL) in conjunction with industry partners began a project to assess field-generated foamed cement at pressurized surface conditions. The collected samples were compared to previous field-generated samples as wel ...
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