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- Coalbed methane (2)
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- CaS (1)
- Capillary pressure (1)
- Carbon Capture and Storage (CCS) (1)
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- Cushion gas (1)
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- Enhanced oil recovery (1)
- Extended-DLVO theory (1)
- FAWAG (1)
- FBG strain (1)
- Fines migration (1)
- Fluid-rock interaction (1)
- Foam flooding (1)
- Foam front (1)
- Fractional-wet reservoirs (1)
- Headspace gas (1)
- Heterojunction (1)
- Horticulture (1)
- Hydrogen (1)
- Hydrogen separation (1)
Articles 1 - 11 of 11
Full-Text Articles in Engineering
Rock Structural Changes Monitored By Fibre Bragg Grating Sensors And Nuclear Magnetic Resonance During Static And Dynamic Carbonated Brine Core Flooding Experiments, Bruno Da Silva Falcão, Lionel Esteban, Ausama Giwelli, Ahmed Al-Yaseri, Alireza Keshavarz, Jeremie Dautriat, Stephanie Vialle, Stefan Iglauer
Rock Structural Changes Monitored By Fibre Bragg Grating Sensors And Nuclear Magnetic Resonance During Static And Dynamic Carbonated Brine Core Flooding Experiments, Bruno Da Silva Falcão, Lionel Esteban, Ausama Giwelli, Ahmed Al-Yaseri, Alireza Keshavarz, Jeremie Dautriat, Stephanie Vialle, Stefan Iglauer
Research outputs 2022 to 2026
One proposed solution to reduce greenhouse gas emissions is the capture and storage of carbon dioxide (CCS) in geological formations such as depleted oil and gas reservoirs. Injected carbon dioxide (CO2) forms carbonic acid once dissolved in the formation water, which can lead to dissolution of certain types of rock minerals. This may weaken rock geomechanical properties that can jeopardize the safety of long-term storage. In this work, the use of Fibre Bragg Grating (FBG) sensors associated with Nuclear Magnetic Resonance (NMR) was investigated to measure the change in rock strain during core flooding experiments. Optical fibres were glued onto …
Understanding The Impact Of Microplastic Contamination On Soil Quality And Eco-Toxicological Risks In Horticulture: A Comprehensive Review, N. P. Gayathri, Geena Prasad, Vaishna Prabhakaran, Vishnu Priya
Understanding The Impact Of Microplastic Contamination On Soil Quality And Eco-Toxicological Risks In Horticulture: A Comprehensive Review, N. P. Gayathri, Geena Prasad, Vaishna Prabhakaran, Vishnu Priya
Research outputs 2022 to 2026
The horticulture sector, essential for global food production, confronts significant challenges with prevalent pollutants, mainly microplastics. The presence of microplastics in the food chain has induced physiological stress and a multifactorial food safety concern. The complexity of the problem, arising from intricate interactions among microplastics, organisms, and ecosystems, poses a substantial challenge to food safety, necessitating an immediate strategic perspective due to the associated risks to human health and eco-toxicology. Significant knowledge gaps persist regarding their impact on terrestrial ecosystems, especially in horticulture. This study addresses the urgent need to comprehend the implications of microplastics on soil health, eco-toxicological risks, …
Enhanced Phosphogypsum Thermal Reduction By Carbon In Presence Of Sodium Chloride At High Temperature, Li Chao, An Xuebin, Jing Hu, Yixiao Wang, Shizhao Wang, Yunshan Wang, Gang Yang, Yong Sun
Enhanced Phosphogypsum Thermal Reduction By Carbon In Presence Of Sodium Chloride At High Temperature, Li Chao, An Xuebin, Jing Hu, Yixiao Wang, Shizhao Wang, Yunshan Wang, Gang Yang, Yong Sun
Research outputs 2022 to 2026
This paper reports an enhanced approach of thermal reduction of phosphogypsum (PG) in the presence of sodium chloride (NaCl) in its molten phase. The thermodynamic together with in-situ thermogravimetric-Fourier transform infrared spectroscopy (TG-FTIR) result indicates the yield of CaS (solid) at the investigated temperature range (800–850 °C). Addition of NaCl not only appreciably reduces the activation energy of this reaction (800–850 °C) on average from 315 to 175 (kJ·mol−1) materially, but also significantly improve the conversion from CaSO4 to CaS. Additionally, the NaCl based waste salt (NaCl-WS) containing organic compounds (0.21 wt%) was found to produce similar results when compared …
Application Of Foam Assisted Water-Alternating-Gas Flooding And Quantification Of Resistivity And Water Saturation By Experiment And Simulation To Determine Foam Propagation In Sandstone, Javed A. Khan, Jong Kim, Sonny Irawan, Karina A. Permatasar, Patrick G. Verdin, Baoping Cai, Nurudeen Yekeen
Application Of Foam Assisted Water-Alternating-Gas Flooding And Quantification Of Resistivity And Water Saturation By Experiment And Simulation To Determine Foam Propagation In Sandstone, Javed A. Khan, Jong Kim, Sonny Irawan, Karina A. Permatasar, Patrick G. Verdin, Baoping Cai, Nurudeen Yekeen
Research outputs 2022 to 2026
Foam flooding by Foam Assisted Water-Alternating-Gas (FAWAG) is an important enhanced oil recovery method that has proven successful in experimental and pilot studies. The present study is carried out to monitor the movement of the foam front once injected into the porous medium. This study aims to investigate applications of resistivity waves to monitor foam propagation in a sandstone formation. In the present lab-scale experiments and simulations, resistivity measurements were carried out to monitor the progression of foam in a sand pack, and the relationships between foam injection time and resistivity, as well as brine saturation, were studied. The brine …
Permeability Enhancement And Coal Fines Removal Through Oxidation Treatment In Coalbed Methane Reservoirs, Yu Lu, Yili Kang, Chengzhong Bu, Ying Li, Chong Lin, Zhenjiang You
Permeability Enhancement And Coal Fines Removal Through Oxidation Treatment In Coalbed Methane Reservoirs, Yu Lu, Yili Kang, Chengzhong Bu, Ying Li, Chong Lin, Zhenjiang You
Research outputs 2022 to 2026
This study utilized anthracite coal samples from Zhijin Block and applied NaClO as the oxidant to investigate the effects of oxidation treatment on permeability enhancement and coal fines migration. Subsequent to oxidation treatment, the coal samples demonstrated an average increase of 42.17% in the equivalent hydraulic aperture (EHA). This treatment also resulted in the expansion of fluid flow channels, contributing to an average permeability enhancement of 108.85% in the coal samples. Resulting from the non-uniform dissolution of the oxidant on the fracture surface of coal, self-propping fractures were formed, effectively maintaining the conductivity of fractures. The oxidation treatment converted the …
Maximizing Charge Dynamics In Znin2s4/Cn Van Der Waals Heterojunction For Optimal Hydrogen Production From Photoreforming Of Glucose, Jinqiang Zhang, Xinyuan Xu, Lei Shi, Huayang Zhang, Shaobin Wang, Hongqi Sun
Maximizing Charge Dynamics In Znin2s4/Cn Van Der Waals Heterojunction For Optimal Hydrogen Production From Photoreforming Of Glucose, Jinqiang Zhang, Xinyuan Xu, Lei Shi, Huayang Zhang, Shaobin Wang, Hongqi Sun
Research outputs 2022 to 2026
Biomass photoreforming stands out as a promising avenue for green hydrogen, leveraging solar energy for the generation and transformation of clean and renewable energy resources. The pursuit of efficient photocatalysts is motivated by the unsatisfied hydrogen evolution performance arising from the complex and stubborn structure of biomass. Herein, we loaded 2-dimensional (2D) ZnIn2S4 onto 2D carbon nitride nanosheets, resulting in the formation of Van der Waals (VDW) heterojunctions (ZIS/CN). Band structure and morphology of CN were rationally tailored through precursor engineering to effectively magnify interfacial internal electric field and minimize diffusion pathway within the VDW heterostructure, realizing optimal charge dynamics …
Identification Of Early Opportunities For Simultaneous H2 Separation And Co2 Storage Using Depleted Coal Seams, Masoud Aslannezhad, Mohammad Sayyafzadeh, Stefan Iglauer, Alireza Keshavarz
Identification Of Early Opportunities For Simultaneous H2 Separation And Co2 Storage Using Depleted Coal Seams, Masoud Aslannezhad, Mohammad Sayyafzadeh, Stefan Iglauer, Alireza Keshavarz
Research outputs 2022 to 2026
Hydrogen (H2) production by steam methane reforming (SMR) is an economically viable technique on a commercial scale. However, this process produces large amounts of carbon dioxide (CO2), which eventually negates the benefits of employing H2 as an industrial input and clean energy carrier. This issue has led to increasing interest in capturing CO2 emissions from SMR to produce H2. This study proposes and investigates the use of coalbed methane (CBM) resources for separating the mixture of H2 and CO2 gases. The competitive adsorption mechanism in CBM not only can separate the H2 gas from the mixture but also results into …
Physicochemical Characterization Of Metal Organic Framework Materials: A Mini Review, Hussein R. Abid, Muhammad R. Azhar, Stefan Iglauer, Zana H. Rada, Ahmed Al-Yaseri, Alireza Keshavarz
Physicochemical Characterization Of Metal Organic Framework Materials: A Mini Review, Hussein R. Abid, Muhammad R. Azhar, Stefan Iglauer, Zana H. Rada, Ahmed Al-Yaseri, Alireza Keshavarz
Research outputs 2022 to 2026
Metal-organic frameworks (MOFs) are promising materials offering exceptional performance across a myriad of applications, attributable to their remarkable physicochemical properties such as regular porosity, crystalline structure, and tailored functional groups. Despite their potential, there is a lack of dedicated reviews that focus on key physicochemical characterizations of MOFs for the beginners and new researchers in the field. This review is written based on our expertise in the synthesis and characterization of MOFs, specifically to provide a right direction for the researcher who is a beginner in this area. In this way, experimental errors can be reduced, and wastage of time …
A Prediction Of Interfacial Tension By Using Molecular Dynamics Simulation: A Study On Effects Of Cushion Gas (Co2, N2 And Ch4) For Underground Hydrogen Storage, Quoc T. Doan, Alireza Keshavarz, Caetano R. Miranda, Peter Behrenbruch, Stefan Iglauer
A Prediction Of Interfacial Tension By Using Molecular Dynamics Simulation: A Study On Effects Of Cushion Gas (Co2, N2 And Ch4) For Underground Hydrogen Storage, Quoc T. Doan, Alireza Keshavarz, Caetano R. Miranda, Peter Behrenbruch, Stefan Iglauer
Research outputs 2022 to 2026
Carbon Dioxide (CO2) emissions from fossil fuel consumption have caused global warming and remain challenging problems for mitigation. Underground Hydrogen Storage (UHS) provides clean fuel and replaces traditional fossil fuels to reduce emissions of CO2. Geological formations such as depleted oil/gas reservoirs, deep saline aquifers and shale formations have been recognized as potential targets to inject and store H2 into the subsurface formations for large-scale implementation of CCS and UHS. However, the presence of H2 with cushion gas at different fractions under different geo-storage conditions, which can influence Hydrogen's flow properties, was not investigated widely. Until now, studies of interfacial …
A Critical Review Of Capillary Pressure Behavior And Characterization In Fractional-Wet Reservoirs, Yihang Xiao, Zhenjiang You, Lei Wang, Zhengtong Du
A Critical Review Of Capillary Pressure Behavior And Characterization In Fractional-Wet Reservoirs, Yihang Xiao, Zhenjiang You, Lei Wang, Zhengtong Du
Research outputs 2022 to 2026
Fractional wettability is common in oil and gas reservoirs, resulting in complex fluid distribution and transport phenomena. A precise understanding of capillary pressure behavior and characterization in fractional-wet reservoirs, including the two-phase flow mechanisms within pores and relationship between capillary pressure and saturation in porous media, is significant to enhanced oil recovery strategies. In this paper, an in-depth review of the two-phase flow mechanisms in fractional-wet pores and capillary entry pressures in various displacement processes was conducted. Furthermore, the effects of oil-wet proportion and contact angle on capillary pressure characterization were summarized, highlighting the emergence of similar capillary pressure curves …
Advancing Natural Hydrogen Exploration: Headspace Gas Analysis In Water-Logged Environments, Krista Davies, Lionel Esteban, Alireza Keshavarz, Stefan Iglauer
Advancing Natural Hydrogen Exploration: Headspace Gas Analysis In Water-Logged Environments, Krista Davies, Lionel Esteban, Alireza Keshavarz, Stefan Iglauer
Research outputs 2022 to 2026
Natural hydrogen has gained prominence as a potential contributor to the low-carbon energy landscape; however, exploration techniques are still evolving. Current methods primarily rely on dry soil gas studies or gas vent measurements. Because gas vents are scarce and groundwater inhibits hydrogen gas flux from the soil, other field detection techniques are necessary. This research paper presents a novel approach for advancing natural hydrogen exploration through the analysis of headspace gas of agitated groundwater extracted from dedicated shallow boreholes to better estimate the hydrogen gas flux and its variations with time. Several shallow boreholes were drilled in Western Australia on …