Jingyi Wang

Jingyi Wang
University of Edinburgh | UoE

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83
Publications
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Introduction
Skills and Expertise

Publications

Publications (83)
Article
Full-text available
Over the past few decades, Alberta has witnessed a remarkable expansion in its oil and gas sector. Unfortunately, this growth has come at a cost, as Alberta has become the fastest-growing source of pollutant emissions in greenhouse gases (GHGs), sulphur emissions, and water pollution in Canada. Among these GHGs, methane stands out as the second mos...
Article
Full-text available
We conducted an experimental investigation to examine the immiscible radial displacement flows of air invading three-dimensional foam in a Hele-Shaw cell. Our study successfully identified three distinct flow regimes. In the initial regime, characterized by relatively low fingertip velocities, the foam underwent a slow displacement through plug flo...
Article
A R T I C L E I N F O Keywords: bitumen oil sands bitumen flotation bubbles surface interactions A B S T R A C T The surface interactions of air bubbles and other components (e.g., particles, oil droplets) significantly influence the operation efficiency of a variety of engineering processes such as oily water treatment, bitumen extraction and flot...
Article
Full-text available
Understanding the interfacial interaction mechanisms of bubble-mineral systems is of paramount importance in the fields of fundamental science and engineering. Over the past few decades, researchers have employed the techniques such as atomic force microscope colloidal or bubble probe to quantitatively measure the bubble-mineral and bubble-bubble i...
Article
Full-text available
Although methane emissions from Alberta's oil and gas sector have decreased in recent years, monitoring these emissions using Continuous Emission Monitoring Systems (CEMS) can be costly. Predictive Emissions Monitoring Systems (PEMS), powered by machine learning, offer an alternative to or can supplement CEMS. However, effective machine learning mo...
Article
Full-text available
We experimentally study the effects of normal stress differences in the immiscible radial viscous fingering instability in a Hele–Shaw cell. Dilute low molecular weight poly(ethylene oxide) (PEO) solutions are used as the displaced fluid to focus on elastic effects without shear-thinning behavior. The molecular weight of PEO is varied to investigat...
Article
Humic acid (HA) is ubiquitous in both terrestrial and aquatic environments, and understanding the molecular interaction mechanisms underlying its aggregation and adsorption is of vital significance. However, the intermolecular interactions of HA-HA and HA-clay mineral systems in complex aqueous environments remain elusive. Herein, the interactions...
Article
Adsorption of heavy metal ions (e.g., Cd(II)) on clay minerals significantly affects their transport and fate in natural and engineered waterbodies. To date, the role of interfacial ion specificity in the adsorption of Cd(II) on earth-abundant serpentine remains elusive. In this work, the adsorption of Cd(II) on serpentine at typical environment co...
Chapter
Heavy oil and extra heavy oil production have increased over the past four decades with the advent of new technology enabling new and more efficient recovery processes. These technologies not only include the practice of cold heavy oil production but also improve understanding of thermal recovery processes as well as new developments in air injecti...
Article
Hydrophobic interaction plays a critical role in many interfacial processes of mineral systems, such as water treatment, particle separation, and functional materials for self-cleaning or electrocatalysis. The quantification and modulation of hydrophobic interaction at the mineral/water interface could help unravel the mechanism underlying the inte...
Article
Full-text available
Closed-loop deep borehole heat exchanger (DBHE) systems for producing heat from geothermal sources have the advantage that the heat transfer fluid is contained within the loop. In this study, for the first time, a U-configuration closed-loop DBHE was examined to evaluate the energy produced per unit energy invested from a 2330-m-deep geothermal res...
Article
The Western Canadian Sedimentary Basin contains large quantities of deep coal which can be produced as coal bed methane (CBM) reservoirs. The Mannville Formation of Alberta is an attractive CBM play because of its high gas-in-place potential of 4–10 BCF per section depending on coal seam thickness and gas content. One requirement for enhanced reser...
Article
The impact of steam generation on Steam-Assisted Gravity Drainage (SAGD) process economics and environmental impacts have led to various modifications of SAGD including solvent co-injection with steam. One example is the Expanding Solvent Steam-Assisted Gravity Drainage (ES-SAGD) process where 1–5 volume% solvent is injected with the steam into the...
Article
Evaporation of salt-water solutions is common in industrial processes and nature. Evaporation kinetics for multicomponent droplets have been investigated previously but most experimental systems have droplets contacting a solid substrate. Here, drying of acoustically levitated salt-water solutions is examined. The results show that the addition of...
Article
Lamellar membranes of Nb2CTx nanosheets have received significant research interests as cost-effective and efficient materials for desalination, water purification, energy conversion and storage, and ion separation. However, the constructive strategies...
Article
Efficient two-dimensional molybdenum disulfide (MoS2) catalysts have not been developed for CO2 reduction. CO2 direct dissociation is the first step and rate determining step for CO2 decomposition reaction. The single and double Fe atomic MoS2 catalysts as well as pristine MoS2 and single S vacancy MoS2 were investigated to explore both adsorption...
Article
Geothermal energy harvesting offers a clean option for energy generation with nearly zero greenhouse gas emission. However, due to the lack of understanding of geothermal resource characterization (geological properties and distributions), optimal well placement and operation for energy generation, and energy return on energy invested, geothermal d...
Article
Dual-atom Fe catalysts supported by three nitrogen atom doped graphene (Fe-TM/GP, where TM = Ti, V, Cr, Mn, Fe, Co, Ni, and Cu) are explored for methane adsorption and activation. The addition of the second metal significantly tunes the properties of the catalysts. The main factor influencing methane adsorption is electron transfer. The second meta...
Article
Full-text available
Although small water clusters (SWCs) are important in many research fields, efficient methods of preparing SWCs are still rarely reported, which is mainly due to the lack of related materials and understanding of the molecular interaction mechanisms. In this study, a series of functional molecules were added in water to obtain small water cluster s...
Article
Today's employers not only want graduates who are critical thinkers and problem solvers that are able to work in teams, but also individuals that understand innovation and how to use entrepreneurial activities to move innovations to become benefits to society. For research‐based graduate students, this is even more desired, with emphasis on an unde...
Article
As non-renewable natural resources, minerals are essential in a broad range of biological and technological applications. The surface interactions of mineral particles with other objects (e.g., solids, bubbles, reagents) in aqueous suspensions play a critical role in mediating many interfacial phenomena involved in mineral flotation. In this work,...
Article
Fouling phenomena are commonly observed in oil production processes, which have caused many challenging issues. Many previous studies focused on fouling in aqueous environment. However, the characterization of foulants and underlying interaction mechanism in organic media still remain limited, which is of fundamental and practical importance. In th...
Article
Despite technical and economic success of Steam-assisted gravity drainage (SAGD), improvements of its thermal efficiency as reflected by the steam-to-oil ratio (SOR) present challenges. Given that the SOR is a measure of the ratio of the energy invested to the energy (chemical energy in oil) produced and emissions intensity, there is strong motivat...
Article
Full-text available
Mussel-inspired chemistry has attracted much research interest in manipulating material properties in surface engineering over the past decade due to its universality and versatility. To address biofouling issues, mussel-inspired molecular interaction strategies have provided promising methods for the design and development of anti-biofouling mater...
Article
Hypothesis: The anodic dissolution of chalcopyrite (CuFeS2) encounters the problem of surface passivation, which significantly affects the copper extraction efficiency. So far, there is no agreement on the passivation mechanism and composition of passive layer, which could be studied by using in-situ scanning electrochemical microscopy (SECM). Expe...
Article
Graphene-based materials have received much attention as attractive candidates for the adsorptive removal of pollutants from water due to their large surface area and diverse active sites for adsorption. The design of graphene-based adsorbents for target pollutants is based on the underlying adsorption mechanisms. Understanding the adsorption perfo...
Article
Despite a large number of researches to understand the aggregation behavior and adsorption mechanism of asphaltene, the effects of asphaltene molecular structure on the adsorption/desorption behavior of asphaltene on rock surfaces remain scarce, which limits the understanding of the interaction mechanism under complex conditions and seriously restr...
Article
Functional slippery surfaces have broad applications in engineering and bioengineering processes, such as water harvesting, photocatalysis, wastewater treatment and food industry. In this work, for the first time, we report the fabrication of a novel type of functional slippery solid surfaces via the self-assembly of a non-fluorine small molecule,...
Article
Full-text available
To extract viscous bitumen from oil sands reservoirs, steam is injected into the formation to lower the bitumen’s viscosity enabling sufficient mobility for its production to the surface. Steam-assisted gravity drainage (SAGD) is the preferred process for Athabasca oil sands reservoirs but its performance suffers in heterogeneous reservoirs leading...
Article
Electrochemical techniques are very useful tools for characterizing the surface properties of natural minerals involved in electrochemical reactions. This work reviews the recent advances in electrochemical characterizations of minerals by employing various electrochemical techniques, i.e., open circuit potential, chronoamperometry, potential sweep...
Article
Full-text available
With strong potential for improving productivity, economics, and efficiencies, data analytics and machine learning are rapidly emerging in the oil and gas industry. However, their application in heavy oil production is scarce. In this study, we use clustering methods to analyze the Kerrobert Toe-to-Heel Air Injection (THAI) project to understand th...
Article
Full-text available
Hydraulic fracturing is widely used in the exploitation of unconventional reservoirs, such as shale gas and tight gas. However, a full understanding of the activation of natural fractures, prediction of fracture growth, distribution of proppant, and network fracture system effectiveness remain unresolved. The onset of fracturing in the media requir...
Article
Humic substance is a ubiquitous class of natural organic matter (NOM) in soil and aquatic ecosystems, which severely affects the terrestrial and aquatic environments as well as water-based engineering systems by adsorption on solids (e.g., soil minerals, nanoparticles, membranes) via different interaction mechanisms. Herein, the chemical force micr...
Article
The conversion of selenium oxyanions to elemental selenium (Se0) of low solubility and bioavailability is an effective industrial approach for selenium management in wastewater treatment. The generated Se0 particles require further treatment with coagulants such as ferric ions to facilitate the precipitation of Se0 particles. In this work, settling...
Article
Molybdenite (MoS2) has attracted great attention in the field of advanced materials. MoS2 is normally separated from other minerals by selective flotation, and chemical reagents (so-called depressants) are required to lower the surface hydrophobicity of MoS2. Previous studies had controversial arguments on the adsorption of organic and inorganic de...
Article
The Toe-To-Heel Air Injection (THAI) operation at Kerrobert, Saskatchewan proved that commercial oil rate is possible together with production of partially upgraded heavy oil. Despite physical model experimentation and simulation investigations of THAI, no detailed analysis has been conducted on a THAI field operation to resolve recovery mechanisms...
Article
Fouling is a critical issue faced by the chemical and oil industries in various operation processes, which has negative impact on the operational efficiency and generates significant economic losses, technical and environmental challenges. Investigating the interaction mechanisms between foulants (e.g., fine solids, asphaltenes) and different subst...
Article
Antifouling coatings have attracted much attention in applications of industrial equipment and systems. The accumulation of foulants on downhole equipment used in Steam-Assisted Gravity Drainage (SAGD) process for oil sands extraction reduces the recovery efficiency of bitumen and causes failures of the equipment. Applying suitable coatings is expe...
Article
Zwitterionic groups have been widely used in anti-biofouling surfaces to resist non-specific adsorption of proteins and other biomolecules. The interactions among zwitterionic groups have attracted considerable attention in bioengineering, while the understanding of their nano-mechanical mechanism still remains limited. In this work, the interactio...
Article
The partition and distribution of 2D Cu metal–organic framework (MOF) at the oil/water interface are imaged by cryo–SEM. An ultra–thin layer of ≈20 nm MOF nanosheets is detected with a lateral orientation along the interface. The surface chemistry of 2D MOF is discussed regarding different crystal planes. More details can be found in article number...
Conference Paper
Steam chamber conformance in Steam Assisted Gravity Drainage (SAGD) influences the efficiency and economic performance of bitumen recovery. Conventional SAGD well completion designs provide limited control points in long horizontal well pairs leading to development of a non-ideal steam chambers. Developing advanced wellbore completions and optimizi...
Article
Full-text available
Metal–organic framework nanosheets (MOF NSs) have drawn a lot of attention lately; however, the interfacial behavior of these 2D MOFs has rarely been investigated. Here, the partition and distribution of 2D NS and 3D nanoparticle (NP) of copper benzenedicarboxylate (CuBDC) at the oil/water interface are imaged by cryo‐scanning electron microscopy....
Article
Full-text available
The anisotropic surface characteristics and interaction mechanisms of molybdenite (MoS2) basal and edge planes have attracted much research interest in many interfacial processes such as froth flotation. In this work, the adsorption of a polymer depressant [i.e., carboxymethyl cellulose (CMC)] on both MoS2 basal and edge surfaces as well as their i...
Article
Full-text available
Steam Assisted Gravity Drainage (SAGD) is widely used in the Athabasca oil sands deposit to recover bitumen. Since the viscosity of bitumen is high at original reservoir conditions, heat is required to lower its viscosity to the point it becomes mobile enough to be recovered under gravity drainage. To heat the reservoir, steam is injected into the...
Article
The oil sands mining tailings inventory is growing and current treatment technologies are costly or unable to recover water effectively and handle the high solids content of the waste. Here we consider in-situ treatment of mature fine tailings (MFT) where additives are injected directly into the tailings to consolidate the solids so that the pond a...
Article
Full-text available
The use of cellulose microcrystal suspensions has two advantages for displacement of viscous oil from porous media—first, it viscosifies the aqueous phase thus improving the mobility ratio and second, it reduces the interfacial tension between the phases leading to improved capillary number. Here we examine oil displacement both macroscopically and...
Article
Adsorption and desorption of biomolecules on/from polyelectrolyte surfaces play a critical role in numerous biomedical and engineering applications. Though some weak polyelectrolytes have been developed for protein adsorption and desorption by regulating the salinity and pH, limited reports are available about the regeneration of strong polyelectro...
Article
Surface interactions involving deformable air bubbles have attracted tremendous interest in a wide range of engineering applications, such as mineral flotation and bitumen extraction. In this work, for the first time, the interaction forces between air bubbles and bitumen surfaces in complex aqueous media of varying pH, salinity and salts were dire...
Article
Mineral particles encountered in oil production and many chemical processes are generally adsorbed with organics (e.g. bitumen), playing an important role in determining their wettability and interaction behaviors. In this work, the surface properties of fine solids, collected from solvent-based extraction of Athabasca oil sands using cyclohexane a...
Article
Due to the limited availability of fresh water sources, recycled water and sea water, generally with high salinity, have been widely used in mining industry in arid regions, which can significantly affect the interactions of mineral particles, chemical additives and air bubbles in mineral processing (e.g., flotation). In this work, the surface forc...
Article
As efforts are made to efficiently exploit and recover bitumen resources in Canada, increasingly more complex reservoirs in the Athabasca area continue to challenge the application of Steam-Assisted Gravity Drainage (SAGD) technology. Several studies have been done to investigate the impact of heterogeneities/complexities such as shale barriers, le...
Article
Recently, unconventional reservoirs have received attention particularly in North America. These reservoirs require hydraulic fracturing to be commercially productive. At this point, it remains unclear as to the influence of geomechanical properties on fracture stimulation and its effective permeability, nature of the fractured zone (whether single...
Article
The McMurray Formation in Alberta, one of the largest oil accumulations in the world, hosts bitumen with viscosity typically greater than 1 million cP. This formation is heterogeneous containing sedimentological elements such as point bar deposits which in turn consist of inclined heterolithic strata of interlayered sand-shale/siltstone sequences a...
Article
Cyclic steam stimulation (CSS) is an effective method to recover extra heavy oil but it achieves a relatively low recovery factor (~26% before economic limit is reached) and is less energy efficient with higher emissions intensity than that of conventional oil production. After it reaches its economic limit, it remains unclear what is the follow-up...
Article
Hydrophobic effect plays an important role in a wide range of natural phenomena and engineering applications, such as mineral froth flotation. In this work, atomic force microscope (AFM) force mapping was employed, for the first time, to probe the nanoscale heterogeneity of surface hydrophobicity and surface interactions on the sphalerite mineral s...
Article
The surface characteristics of molybdenite (MoS2) such as wettability and surface interactions have attracted much research interest in a wide range of engineering applications, such as froth flotation. In this work, a bubble probe atomic force microscope (AFM) technique was employed to directly measure the interaction forces between an air bubble...
Article
Slotted liners are flow control devices widely used in both injection and production wells for thermal oil sands recovery operations such as Steam-Assisted Gravity Drainage. In these devices, slots are cut into the well at regular intervals around and along the well. The dimensions tend to be from fractions to several millimeters in gap and a few t...
Article
Steam fracturing as done during cyclic steam stimulation is an effective thermal process for initiating recovery from viscous oil reservoirs such as oil sands reservoirs found in Alberta, Canada and Liaohe, China. A key component of these processes is the ability to inject high temperature steam into the formation to fracture it which in turn raise...
Article
The outstanding water wettability and the capability of polyelectrolyte surfaces to spontaneously clean oil fouling are determined by their wetting mechanism in the surrounding medium. Here, we have quantified the nanomechanics between three types of polyelectrolyte surfaces (i.e. zwitterionic, cationic, and anionic) and water or oil drops using an...
Conference Paper
Due to the high temperature, high pressure and sophisticated chemical environment in heavy oil wells, Steam-Assisted Gravity Drainage (SAGD) is considered one of the most challenging service conditions for carbon steel equipment. This paper introduces an advanced metal-metal bonded coating technology-electroless nickel (EN) coating and its applicat...
Article
Full-text available
Production of unconventional oil and gas resources has played a significant role on the global energy supply, of which tight oil and gas reservoirs are drawing greater focus. The key enabler behind tight oil and gas production has been multi-stage hydraulic fracturing along extended reach horizontal wells. Despite many advances in multistage fractu...
Article
The outstanding water wettability and the capability of polyelectrolyte surfaces to spontaneously clean oil fouling are determined by their wetting mechanism in the surrounding medium. Here, we have quantified the nanomechanics between three types of polyelectrolyte surfaces (i.e. zwitterionic, cationic, and anionic) and water or oil drops using an...
Article
Colloidal stability governed by various surface interactions finds wide application in many engineering processes, such as mineral froth flotation. In this work, electrochemical atomic force microscope (EC-AFM) was employed to modulate the interfacial chemical reaction and simultaneously probe the evolution of surface characteristics (i.e., morphol...
Article
Understanding the surface interactions between elemental selenium (Se0) and solid substrates are of both fundamental and practical importance in biological systems, water treatment processes, and microelectromechanical/nanoelectromechanical systems where Se0 is present. In this work, for the first time, surface interactions between a Se0 sphere and...
Article
The adsorption of amyl xanthate on sphalerite in NaCl solutions of different concentrations and in saline water (viz. simulated sea water) and the surface properties of treated minerals were investigated. The interactions between xanthate treated sphalerite particles and air bubbles were examined using induction time measurement, which revealed tha...
Article
Cold heavy oil production with sand (CHOPS) is the process of choice for unconsolidated heavy oil reservoirs with relatively high gas content. The key challenge of CHOPS is that the recovery factor tends to be between 5% and 15%, implying that the majority of the oil remains in the ground after the process is rendered uneconomic. Continued cold pro...
Article
The interaction between air bubbles and solid surfaces plays important roles in many engineering processes, such as mineral froth flotation. In this work, an atomic force microscope (AFM) bubble probe technique was employed, for the first time, to directly measure the interaction forces between an air bubble and sphalerite mineral surfaces of diffe...
Article
In situ scanning electrochemical microscopy (SECM) was used to study N-isopropoxypropyl-N'-ethoxycarbonyl thiourea (iPOPECTU) adsorption on chalcopyrite. The in situ SECM images indicated a preferential adsorption of iPOPECTU on chalcopyrite surfaces, resulting in a decrease in the probing electrochemical current response. The surfaces after iPOPEC...
Article
Selenium ions are toxic at concentrations of >40 ppb (40 mu g L-1) which has been a very challenging environmental issue. Compared to Se (IV), Se (VI) is more bioavailable and much more difficult to remove from water. Conventional adsorbent materials only show well defined removal capacity for Se (IV) while performing poorly for Se (VI) (typical re...
Article
It has been shown that the performance of a Steam-Assisted Gravity Drainage (SAGD) well pair is affected by its orientation and position within a point bar deposit. In typical commercial operations, multiple horizontal wellpairs, usually arranged parallel to each other, are arranged in pads within oil sands reservoirs. Thus, the overall performance...
Article
In situ scanning electrochemical microscopy (SECM) was applied for the first time to study the copper activation and subsequent xanthate adsorption on sphalerite. The corresponding surface compositions were analyzed by time-of-flight secondary ion mass spectrometry (ToF-SIMS) and X-ray photoelectron spectroscopy (XPS). The probe approach curve (PAC...
Article
In Steam-Assisted Gravity Drainage (SAGD), high pressure, high temperature steam is injected into a bitumen-bearing oil sands formation. For most operations, the steam temperature ranges from about 200 to 260 °C and thus under these conditions, the bitumen undergoes hydrous pyrolysis, i.e. aquathermolysis, yielding acid gases such as hydrogen sulfi...

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