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114th Annual ASEE Conference and Exposition, 2007

作者： Scott, Suzanne Ahmad, Jamal Petroleum Institute United Arab Emirates Petroleum Institute United Arab Emirates Program Colorado School of Mines United States Department of Mechanical Engineering Petroleum Institute of Abu Dhabi United Arab Emirates

The STEPS program (Strategies for engineering Problem Solving) at the petroleum Institute in Abu Dhabi introduces second-year student design teams to authentic engineering problem solving in the 21stcentury, with special emphasis on environmental and humanitarian issues facing engineers in both our local and broader global communities. The responsibilities of professional global engineers is stressed, including stewardship of our planet and its resources;the health, safety, and welfare of its inhabitants;engineering ethics, and intercultural communication. Student teams are mentored through an "experience" of engineering design methodology that incorporates creativity and inventiveness, technical thinking, decision-making, communications skills, and graphical demonstration. The authors wanted to know what our Arab engineering students knew about sustainability. What were their perceptions about their responsibilities as engineers in the 21stcentury? Did they care? What's being done to foster awareness in this part of the world? Should environmental sustainability and global stewardship be at the core of our engineering design program? How could we introduce our students to humanitarian engineering? The answers to these questions along with data collected over two semesters are discussed in this paper. The Fall 2006 STEPS II project involved the development of a Plastics Recycling Plan for the petroleum Institute, with applications locally and globally. The project exposed students to the concept of reusable energy resources, the societal impact of recycling, environmental issues in engineering design, data collection and analysis, manufacturing processes, safety, modeling techniques, graphics communication as well as economic considerations. At the beginning of the course our students were uneducated about the seriousness of the plastics waste problem, relatively unaware of what was happening at the PI and in their community with regard to recycling, and doubtful th

关键词： engineering education

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Harnessing biochemical innovations for sustainable oil recovery: perspectives from the Indian context on green enhanced oil recovery (GEOR) methods for matured petroleum fields

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Environmental Science and Pollution Research 2025年第13期32卷 7894-7932页

作者： Kothawade, Tanvi R. Deshmukh, Minal Kumar, Ganesh Pathan, Aadil Sangwai, Jitendra Department of Petroleum Engineering Dr Vishwanath Karad MIT World Peace University Pune411038 India Enhanced Oil Recovery Laboratory Petroleum Engineering Program Department of Ocean Engineering Indian Institute of Technology Madras Chennai600036 India Department of Chemical Engineering Indian Institute of Technology Madras Chennai600036 India

Green enhanced oil recovery (GEOR) has emerged as an eco-friendly alternative to conventional oil recovery techniques, offering a more sustainable way to increase oil extraction while minimizing environmental harm. This review focuses on the potential of biochemicals, particularly biopolymers, and biosurfactants, in improving oil recovery in Indian oilfields. While these biochemicals, such as xanthan gum, scleroglucan, and HEC, have shown promising results in global oilfields, their application in India remains largely unexplored. By comparing the characteristics of Indian reservoirs with successful international case studies, this review highlights the feasibility and advantages of biopolymer-based EOR methods in India’s unique reservoir conditions, including high temperatures, salinity, and other challenges. Despite the proven benefits of biopolymers, such as their environmental sustainability and operational efficiency, they have not yet been widely adopted in Indian oilfields. The review identifies key research gaps, including the need for a deeper understanding of microbial and biopolymer interactions, and stresses the importance of developing sustainable and cost-effective production methods for biopolymers. The findings suggest that integrating biopolymers into India’s oil recovery processes could not only enhance extraction rates but also contribute to greener, more efficient practices. This review provides a comprehensive overview of the current state of biopolymer-based EOR and outlines future research directions, contributing to the development of more sustainable oil recovery techniques tailored to India’s specific needs. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2025.

关键词： Oil well flooding

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Geochemical Impacts on CO2 Storage Efficiency in Deep Aquifers: A Cameroon Gulf of Guinea Case Study

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Defect and Diffusion Forum 2025年 439卷 83-92页

作者： Mwenketishi, Gregory Benkreira, Hadj Soleimani, Hassan Rahmanian, Nejat Chemical Engineering Program Faculty of Engineering and Digital Technologies University of Bradford BradfordBD7 1DP United Kingdom Department of Petroleum Engineering Universiti Teknologi PETRONAS Bandar Seri Iskandar Perak Darul Ridzuan Tronoh31750 Malaysia

Carbon dioxide (CO2) storage serves as a greenhouse gas mitigation strategy employed by numerous nations. This study aims to explore the feasibility of CO2 storage in the Rio del Rey Basin (RDR), Gulf of Guinea region. We employ a compositional flow model, which has been validated using data from a Subsurface interpretation project in Cameroon. This work is aimed at conducting compositional numerical simulations to investigate the impact of geochemistry on CO2 aquifer storage. A conceptual development CO2 storage study has been considered for a deep aquifer reservoir formation Miocene RDR, Cameroon Gulf of Guinea. The reservoir formations in this basin are set to have very good petrophysical and geological properties for it to be considered as a storage system. The aquifer formation contains various amounts of minerals which in turn would alter the injection of CO2 as the chemical and geological properties of the storage system change. Some of the chemicals would alter the CO2 fluid and rock properties and consequently the reservoir injection and storage rates and quantities of injected and stored CO2 due to minerals precipitation and vaporization phenomena within the storage system. This presents a major concern as the impact of geochemistry on CO2 injection and storage is not well understood to date which means that the development and operational strategies and costs of such a project are not fully understood and present significant deployment risk and uncertainties. The simulation results show that aquifer geochemistry strongly affects CO2 brine water storage efficiency at different scales. © 2025 Trans Tech Publications Ltd, All Rights Reserved.

关键词： Storage efficiency

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Study of gasification reactivity of some Indonesian coals using thermogravimetry–mass spectrometry (TG-MS) approach

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International Journal of Coal Preparation and Utilization 2025年

作者： Widayat, Agus Haris Anggayana, Komang Halim, Nurulhuda Muslim, Abrar Al Hamda, Aisyah Rifaldi, Mirza Dian Dwiantoro, Mulyono Hariyadi, Sundek Research Group of Earth Resources Exploration Mining and Petroleum Engineering Faculty Institut Teknologi Bandung Bandung Indonesia Research Group of Metallurgical Engineering Mining and Petroleum Engineering Faculty Institut Teknologi Bandung Bandung Indonesia Department of Chemical Engineering Engineering Faculty Universitas Syiah Kuala Darussalam Indonesia Graduate Program of Mining Engineering Mining and Petroleum Engineering Faculty Institut Teknologi Bandung Bandung Indonesia Engineering Faculty Universitas Kutai Kartanegara Kalimantan Timur Tenggarong Indonesia

Four coal samples from the Upper Kutai, South Sumatra, and Meulaboh basins were analyzed using chemical, petrographic, and thermogravimetric–mass spectrometry (TG-MS) methods to characterize their composition and thermal behavior during pyrolysis and gasification. Chemical and petrographic analyses revealed that the samples vary in rank, ranging from sub-bituminous C to high-volatile A bituminous coal (vitrinite reflectance, Rr, between 0.34% and 0.86%). Vitrinite is the predominant maceral, comprising 71.90% to 86.30% by volume. Thermal decomposition during both pyrolysis and gasification was found to be more strongly influenced by coal rank than by maceral composition. During pyrolysis, higher-rank coals exhibited lower thermal decomposition rates. CO₂ was the first gas released during thermal cracking, followed sequentially by CH4, H₂O, and H₂. The latter becoming the dominant gas in the later stages of pyrolysis. In CO₂-driven gasification, the sub-bituminous C coal exhibited a maximum char reactivity of 0.61 mg/min, compared to just 0.01 mg/min for the high-volatile A bituminous coal. Carbon monoxide (CO) was the primary syngas produced during the gasification process. © 2025 Taylor & Francis Group, LLC.

关键词： Thermogravimetric analysis

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Analytical Model for Mechanically Lined Pipe Hydroforming

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Thin-Walled Structures 2025年 215卷

作者： Wei, Rongzhi Vaz, Murilo Augusto Hu, Xuefeng Ocean Engineering Program Universidade Federal do Rio de Janeiro RJ Rio de Janeiro Brazil CNOOC Petroleum Brasil Ltda. RJ Rio de Janeiro Brazil

Mechanically Lined Pipe (MLP) contributes to a cost-effective solution to long-distance transportation of oil and gas carrying corrosive substances. Causticity isolation is attained by lining a thin layer of Corrosion Resistant Alloy (CRA) upon the inner wall of carrier pipe. The interlayer mechanical bonding is crucial and typically achieved by expanding liner and carrier pipe simultaneously. Insufficient residual contact pressure makes thin-walled liner vulnerable to detachment when subjected to excessive compression or curvature. After experiencing repeated plastic bending, such as reel-lay installation, detachment can evolve into liner buckling and collapse inside the carrier pipe, and ultimately damaging the structure. Thus, the MLP hydroforming is mathematically modeled. By decomposing the expansion stages of each component, a comprehensive analytical framework is developed for full-process analysis of MLP manufacturing, encompassing single cylinder pure elastic, partially plastic, post-yield expansions (w/o and w/ external contact). The analytical framework employs von Mises yield criterion, Hencky deformation theory, and the auxiliary variable method to conduct stress-strain analysis. Its capacity to incorporate initial gap dimension, strain-hardening and partial plastification in mechanical bonding prediction is validated through Finite Difference Method (FDM). The proposed model provides an explicit equation system that is easily implementable for onsite MLP hydroforming fabrication. © 2025 Elsevier Ltd

关键词： Stress-strain curves

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Chemical mechanical polishing as an alternative surface treatment technique for corrosion prevention of carbon steel in an acidic medium

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Scientific Reports 2025年第1期15卷 1-11页

作者： Ahmed, Mohamed Ali Al-Timimi, Buthainah Al-Ali, Maha Abdullah, Ghassan H. Khalaf Atiyaha, Safa Yaseen Ali Aljanabi, Ahmed Mel, Maizirwan Mechanical Engineering Department College of Engineering Tikrit University Tikrit Iraq Chemical Engineering Department University of Technology-Iraq Baghdad Iraq Chemical Engineering and Sustainability Department Faculty of Engineering International Islamic University of Malasiya (IIUM) Kuala Lumpur Malaysia Oil and Gas Refining Engineering Department College of Petroleum Process Engineering Tikrit University Tikrit Iraq Petroleum Systems Control Engineering Department College of Petroleum Processes Engineering Tikrit University Tikrit Iraq Modeling and Design Program Atilim University Ankara Turkey

Chemical mechanical polishing (CMP) has been a standard technique in semiconductor manufacturing for achieving smooth surfaces. CMP utilizes a synergistic interplay of chemical and mechanical interactions to achieve the desired removal rates, selectivity, and ultimately planarity with different substrate materials. In this study, the impact of CMP on the surface properties of steel used in the petroleum industry was examined, with a focus on its corrosion behavior posttreatment. Steel samples were subjected to CMP with and without an oxidizer in a silica-based slurry, and their surface characteristics were compared to those of samples polished mechanically. The addition of an oxidizer to the slurry resulted in increased material removal rates and the formation of an oxide layer on the surface;this phenomenon was not observed in CMP without an oxidizer. However, in mechanical polishing, the action of silicon carbide grains on the steel surface led to an increase in the removal rate but caused a decrease in its corrosion resistance. Compared with other treatments, the oxide layer provided a good protective barrier against corrosion and improved the corrosion resistance of the steel substrate. Based on the results from the practical study, an improvement in the corrosion resistance properties was observed due to the chemical reaction of the oxidizer and the mechanical action of the silica nanoparticles;these results showed the importance of chemical mechanical polishing as an alternative method to reduce the corrosion of steel in acidic environments. Additionally, the effect of hydrogen peroxide in a silica slurry with respect to the wettability, surface roughness, and hardness of steel was examined using contact angle measurements, profilometry, scanning electron microscopy, and microhardness tests. © The Author(s) 2025.

关键词： Chemical mechanical polishing Contact angle Electrochemical corrosion test Hydrogen peroxide oxidizer Immersion test Material removal rate Silica-based slurry Surface roughness

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Evaluating particulate matter mass and count concentrations in a vehicle cabin: Insights from Kuwait City

Journal of Engineering Research (Kuwait)

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Journal of engineering Research (Kuwait) 2025年

作者： Al-Dabbous, Abdullah N. Goel, Anju Alsulaili, Abdalrahman Al-Dabbous, Shoug Kh. Shalash, Musaed Environmental and Climate Change Program Environment & Life Sciences Research Center Kuwait Institute for Scientific Research Kuwait The Energy and Resources Institute New Delhi India Civil Engineering Department College of Engineering and Petroleum Kuwait University Kuwait

Inhaling quality air is crucial for good health. Therefore, investigating air quality in various microenvironments, especially indoors where people spend most of their time, is essential. This study examines particulate matter (PM) concentrations in a vehicle cabin over one week in September, representing late summertime conditions. It focuses on measuring PM mass and count across various size ranges (0.3–0.5, 0.5–1.0, 1.0–2.5, 2.5–5.0, 5.0–10.0, 10.0–25.0 μm) under different ventilation settings in a private vehicle on one of Kuwait's busiest highways. Thirty-five runs were conducted across five ventilation settings over seven days. These settings included combinations of AC fan speeds, recirculation status, window positions (open and closed), and smoking activities. No significant trends were observed between weekends and weekdays due to minimal traffic differences. However, distinct PM mass and count concentration variations were noted across ventilation settings. Setting 5 (AC at medium fan speed, vent and windows closed, smoking allowed) had the highest PM mass and count concentrations in smaller sizes (diameter ≤2.5 μm) due to active smoking. Setting 1 (AC off, vent and windows open, no smoking) recorded the second-highest PM mass (diameter ≥2.5 μm) and count (diameter ≤2.5 μm) concentrations due to outdoor pollution. PM mass and count concentrations were lowest under settings 2–4, with negligible differences between them, attributed to the relative restriction of air intake. The highest exposure levels were observed in setting 1, where windows were open, and the lowest in settings with closed windows and AC in recirculation mode. Exposure levels at hotspots were up to 200 % higher. Proximity to construction activities further increased exposure. © 2025 The Authors

关键词： Kuwait Particulate matter Smoking Vehicle cabin Ventilation settings

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3D modeling and fluid flow simulations along fault zone affected by silicification in Rio do Peixe Basin, Brazil

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Journal of South American Earth Sciences 2025年 161卷

作者： Rocha, Renan Nicolau Ribeiro da Nogueira, Francisco Cézar Costa Pontes, Cayo Cesar Cortez Gomes, Thiago Pedro de Lira Vasconcelos, David Lino Palhano, Leonardo Carvalho Souza, Jorge Andre Braz de Perez, Yoe Alain Reyes Nicchio, Matheus Amador Postgraduate Program in Natural Resources Engineering and Management Federal University of Campina Grande Paraíba Brazil Federal Institute of Education Science and Technology of Bahia Jacobina Brazil Department of Petroleum Engineering Federal University of Campina Grande Paraíba Brazil Postgraduate Program in Geophysics and Geodynamics Federal University of Rio Grande do Norte Natal Brazil Postgraduate Program in Petroleum Science and Engineering State University of Campinas São Paulo Brazil Petrobras Research Center Rio de Janeiro Brazil Sedimentary Geology Laboratory Federal University of Rio de Janeiro Brazil

Fault zones are known to influence the petrophysical properties of the rocks that accommodate deformation. However, the effect of a fault zone containing deformation bands and hydrothermal silicification on fluid flow remains underexplored. This study investigates the impact of the coexistence of deformation bands and hydrothermal silicification on the fluid flow based on a outcrop composed of conglomeratic sandstone within the damage zone of the Portalegre Fault in the Rio do Peixe Basin, an analog of siliciclastic reservoir in the northeastern of Brazil. Previous studies divided this outcrop into three zones according to the presence and degree of silicification: Zone I (non-silicified), Zone II (moderately silicified), and Zone III (intensively silicified). Porosity and permeability models were constructed for each zone, and numerical fluid flow simulations were conducted. Our results showed significant alteration of the permoporous properties, leading to significant fluid flow anisotropy. Zone I exhibited the highest oil recovery, with an average recovery factor of 34 %. Flow analysis revealed that silicification controlled the flow direction, and deformation bands were overridden by silicification. The silicification process led to a significant increase in anisotropy, which was crucial for enhancing sweep efficiency. This alteration elevated the tortuosity of fluid flow, thereby improving the lateral sweep efficiency within the study area. This process reduced hydrodynamic properties, causing strong permeability anisotropy, primarily attributed to mineral dissolution and the formation of preferential flow paths. The results from this research offer new insights into fluid flow prediction and production optimization for reservoirs with similar fault-related siliciclastic characteristics. © 2025 Elsevier Ltd

关键词： Deformation bands Fault zones Geological modeling Numerical simulation Rio do Peixe Basin Siliciclastic reservoirs Silicification

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Stability and activity of nickel catalysts supported on diatomite for dry reforming of methane: Role of cerium and boron promoters

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Journal of the Energy Institute 2025年 120卷

作者： Azevedo, Amanda L. Melo, Dulce M.A. Silva, Yuri K.R.O. Oliveira, Ângelo A.S. Favacho, Vanessa S.S. Souza, Lalyson M.L.R. Rocha, Amanda R.C.C. Braga, Renata M. Postgraduate Program in Chemistry Federal University of Rio Grande do Norte Natal Brazil Postgraduate Program in Materials Science and Engineering Federal University of Rio Grande do Norte Natal Brazil Postgraduate Program in Petroleum Science and Engineering Federal University of Rio Grande Do Norte Natal Brazil Agricultural School of Jundiaí Federal University of Rio Grande do Norte RN Macaíba Brazil

This study evaluates the activity and stability of nickel-based catalysts supported on diatomite and promoted with 1 or 2 wt% of cerium or boron for the dry reforming of methane (DRM). Diatomite, a naturally abundant and low-cost support, requires no complex synthesis procedures and remains relatively underexplored in DRM applications. Given the economic viability of using this material, the incorporation of promoters such as cerium and boron can enhance its catalytic properties, including resistance to coke formation, thermal stability, and activity at both low and high temperatures, thereby increasing its potential for industrial application. The support composition was analyzed by X-ray fluorescence (XRF), and its morphology was examined using scanning electron microscopy (SEM). The catalysts were characterized by SEM, X-ray diffraction (XRD), nitrogen physisorption, H2 temperature-programmed reduction (H2-TPR), thermogravimetric analysis (TGA), and Raman spectroscopy. The catalytic performance results indicated that cerium addition enhanced CO2 and CH4 conversion, with 2 wt% Ce-promoted catalyst stands out due to its significantly higher conversion rates and lower coke formation, as observed in TGA. The 2 wt% boron-promoted catalyst exhibited greater stability, with significant resistance to coke formation, despite showing lower CH4 conversion. SEM analysis revealed the presence of carbon filaments, particularly in the catalysts without boron, whereas boron-promoted catalysts showed reduced filamentous carbon formation. The activation energies derived from the Arrhenius plot further corroborate these findings, demonstrating that boron-promoted catalysts exhibited satisfactory performance at high temperatures (>800 °C), where the reaction is thermodynamically controlled. In turn, cerium-promoted catalysts achieved superior catalytic performance at ≤ 700 °C and performed similarly to boron-containing catalysts at higher temperatures. Therefore, both promoters impa

关键词： Thermogravimetric analysis

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Quinone-annulated imidazolium salts as dual electrolyte-sorbents for electrochemical capture of carbon dioxide

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Journal of Materials Chemistry A 2025年

作者： Petersen, Haley A. Koltunski, Hunter J. Pham, Phuc H. Brink, Quinn M. Ley, Ashley Lee, Jonathan Wright, Oliver M. Wyatt, Keenan Noble, Richard D. Alherz, Abdulaziz W. Luca, Oana R. Department of Chemistry University of Colorado Boulder Boulder 80309 CO United States Renewable and Sustainable Energy Institute and Materials Science and Engineering Program University of Colorado Boulder Boulder 80309 CO United States Department of Chemical Engineering College of Engineering and Petroleum Kuwait University Safat 13060 Kuwait

Electro-swing carbon capture is an emerging technology that aims to mitigate increasing concentrations of CO2 in the atmosphere through the reversible capture and release of CO2 using applied potentials, rather than h... 详细信息

Electro-swing carbon capture is an emerging technology that aims to mitigate increasing concentrations of CO₂ in the atmosphere through the reversible capture and release of CO₂ using applied potentials, rather than heat, as the driving force. Herein, we report the synthesis and characterization of quinone-annulated imidazolium salts that can act as both sorbent and electrolyte in CO₂ capture applications. Through cyclic voltammetry, conductivity measurements, and corroboration by density functional theory (DFT), we report that alkyl substitution of the C2 position of the imidazolium moiety of these salts, along with judicious choice of counterion, is critical for stability of the sorbent. Across several synthetic iterations, we identify a C2-butylated quinone-annulated imidazolium bistriflimide salt that possesses promising CO₂ binding strengths for capture of CO₂ from dilute sources, relatively small potential difference (ΔE) between the voltage needed for capture and release, a relatively high solubility (2.87 M) in anhydrous acetonitrile, and sufficient solution conductivity to operate as its own electrolyte. This work sets the stage for the design of ionic molecular materials that can act as both reactive sorbents and electrolytes that could ultimately allow for organic redox battery-like operation of electro-swing systems. © 2025 The Royal Society of Chemistry.

关键词： Cyclic voltammetry

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