A Janus membrane/mesh is a type of functional membrane/mesh composed of opposing wetting properties formed into a single layer in order to achieve novel properties. Janus membranes/meshes have attracted increasing attention from materials scientists…
A digital microfluidic modular interface (chip-to-chip interface) which possesses an electrode with an orifice to vertically transport coreshell droplets is presented. The electrodes were geometrically designed to promote droplet deformation and…
In order to explore the micro-dynamic principle of radial deposition and adhesion behavior and analyze the effect-principle of the features in construction of rough tube surfaces on each link, a molecular dynamic model was established to characterize…
Hydrogen is presently evaluated as a clean fuel to mitigate anthropogenic CO2 emissions and reduce the greenhouse gas effect. However, one of the major challenges for implementing a full hydrogen economy is hydrogen storage (as hydrogen is highly…
This study investigates the ability of hydrogen (H2) to wet clay surfaces in the presence of brine, with implications for underground hydrogen storage in clay-containing reservoirs. Rather than measuring contact angles directly with hydrogen gas, a…
Hydrogen (H2) as a cleaner fuel has been suggested as a viable method of achieving the de-carbonization objectives and meeting increasing global energy demand. However, successful implementation of a full-scale hydrogen economy requires large-scale…
Hypothesis: CO2 geo-storage is a technique, where millions of tonnes of CO2 are stored in underground formations every year for permanent immobilization to reduce greenhouse gas emissions. Among promising geo-storage formations, basalt is attracting…
Hydrogen is currently assessed as a future clean fuel in a hydrogen economy. However, one key problem with implementing a full-scale hydrogen economy is hydrogen storage (as hydrogen is highly compressible and volatile). One solution for this problem…
Underground hydrogen (H2) storage (UHS) and carbon dioxide (CO2) geo-storage (CGS) are prominent methods of meeting global energy needs and enabling a low-carbon global economy. The pore-scale distribution, reservoir-scale storage capacity, and…
Close examination of surface interactions between calcite and crude oil is relevant to better understand the mechanisms that lead to wettability changes in petroleum reservoirs. Mineral surface wettability is a determinant factor in petroleum…
Hypothesis: The mitigation of anthropogenic greenhouse gas emissions and increasing global energy demand are two driving forces toward the hydrogen economy. The large-scale hydrogen storage at the surface is not feasible as hydrogen is very volatile…
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 continuum (macro)…
Hydrogen storage in subsurface aquifers or depleted gas reservoirs represents a viable long-term energy storage solution. There is currently a scarcity of subsurface petrophysical data for the hydrogen system. In this work, we determine the…
Carbon dioxide storage combined with enhanced oil recovery (CCS-EOR) is an important approach for reducing greenhouse gas emissions. We use pore-scale imaging to help understand CO2 storage and oil recovery during CCS-EOR at immiscible and…
Carbon dioxide (CO2) sequestration for sustainable enhanced oil recovery and reducing greenhouse gas emissions, still faces various challenges. The process performance can improve via injection of nanoparticles into CO2 (NPs-CO2). However, the…
Engineered nanofluids were designed to reduce oil viscosity and to restore wettability in heavy oil formations (Zabala et al. 2016). Incremental production rates, between 50% and 150%, were registered after injecting the nanofluids in 4 wells in two…
In mixed- to oil-wet reservoirs characterized by intense natural fracturing where the dominant displacement mechanism is gravity drainage, surfactant injection can lead to a shift in wettability and incremental oil production. In some cases, oil can…
Any efficient exploitation of new petroleum reservoirs necessitates developing methods to mobilize the crude oils from such reservoirs. Here silicon dioxide nanoparticles (SiO2 NPs) were used to improve the efficiency of the chemical-enhanced oil…
While wettability alteration is widely accepted as the dominant mechanism underlying enhanced oil recovery (EOR) in sandstone reservoirs under low salinity water flooding (LSWF) conditions, the effectiveness of LSWF still varies substantially between…
In order to explore the micro-dynamic principle of radial deposition and adhesion behavior and analyze the effect-principle of the features in construction of rough tube surfaces on each link, a molecular dynamic model was established to characterize…
In order to solve the problems caused by restricted application of offshore hydraulic sand fracturing measures, limited stimulation potential of gneiss matrix acidizing and sand control completion mode, this paper systematically studies the…
Brine-dependent recovery, which involves injected water ionic composition and strength, has seen much global research efforts in the past two decades because of its benefits over other oil recovery methods. Several studies, ranging from lab coreflood…
Tight oil reservoirs typically have an estimated ultimate recovery of less than 10% after hydraulic fracturing, where enhanced oil recovery (EOR) technique is needed. Comparing to the gas-EOR, the surfactant-EOR neither alters the current fracturing…
Precipitation of asphaltenes in oil fields represents interfacial phenomena of great concern for oil industry. Oil production decreases due to the obstruction of reservoir rock pores by asphaltene blockage. Futhermore, the phenomena of wettability…
Nanoparticles are of interest in recent oil production process due to their potential to wettability alteration, but not interfacially active at the crude oil-water interface. Stability loss in brine environment, where nanoparticles tend to…
Hypothesis The macroscopic movement of subsurface fluids involved in CO2 storage, groundwater, and petroleum engineering applications is controlled by interfacial forces in the pores of rocks. Recent advances in modelling these systems has arisen…
In this work we present fabrication of slippery liquid infused porous surface (SLIPS) for anodized stainless steel AISI 316L. First, a porous sponge-like oxide layer was grown that subsequently was functionalized with perfluorinated molecules and…
Hypothesis The macroscopic movement of subsurface fluids involved in CO2 storage, groundwater, and petroleum engineering applications is controlled by interfacial forces in the pores of rocks. Recent advances in modelling these systems has arisen…
The development of a facile, compact, and inexpensive system for continuous liquid-liquid emulsification and separation, is a major engineering challenge in different industries such as petroleum, cosmetics, and food production. Herein, we report a…