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2021 — A Dynamic Predictive Analysis on Gas Pipeline Failure Consequence Using Bayesian NetworkRésumé
Nowadays, due to the economical, environmental, and social concerns which are the three pillars of sustainable development objectives, natural gas is considered as one of the most important and critical energies. Natural gas pipeline failure and related losses is a kind of devastating disaster because the threats of natural gas failure consequences may provide a huge extension that can simply lead to cascading disasters. Therefore, maintenance and repair of the deteriorating infrastructure like buried gas pipelines have been considered significant considerations amongst stakeholders and researchers in recent years. In this thesis, a dynamic Bayesian network (BN) was used to investigate … Lire la suite
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2020 — Becomings-Unsettled? (Un) Braiding Settler-Treaty Life WritingRésumé
Rather than viewing this abstract as a simple outline of the main ideas, the nuts and bolts, the meat and potatoes, the name of the game, and the bottom line, I consider it a story. It is another moment for practicing life writing as research. On an early December morning, a large group of Canada geese gather on Pasqua Lake in the Qu’appelle Valley, near a brief narrowing of the lake in the southwest. The lake ice is thick except for a peculiar patch of open water, an oddity for the season. Here the geese float and flap mostly at … Lire la suite
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2014 — Treatment of Produced Water Using Dissolved Air Flotation (DAF) Technique and Ionic LiquidsRésumé
As population grows, more water and oil resources are needed to make more products. In addition, more contaminants are also created due to daily uses. Consequently, environment protection will be a necessary duty for everyone. As produced water is a by-product from the oil production process, and constitutes a large portion of the extracted liquid from the oil well, treatment of the produced water is necessary before discharging. Treatment of produced water is a benefit for many reasons such as extracting more oil from the produced water, using the treated water for irrigation, and finally for protecting the environment. In … Lire la suite
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2012 — Socially-Aware Transportation SystemsRésumé
The trustworthiness of information supplied to users of an Intelligent Transportation System (ITS) application is a crucial factor for the success of these applications, affecting these systems’ credibility and reliability. The criticality of information within ITS applications requires extra steps to make users trust these applications in a way that they will make ITS applications part of their daily use. In this work, a software system is proposed that takes advantage of an online social network as a source of trusted information between different users. This work exploits social relationships to infer trust values between users who are directly or … Lire la suite
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2014 — Hydrogen Production by the Cataylitic Auto-Thermal Reforming of Synthetic Crude Glycerol in a Packed Bed Tubular ReactorRésumé
The target of this work was to develop an efficient autothermal reforming (ATR) process for the production of renewable hydrogen from synthetic crude glycerol (CG). Hence, the work was divided into three phases: (1) development of a high performance catalyst, (2) optimization of process variables, and (3) investigating the kinetics of the involved reactions. A portfolio of ternary oxide catalysts with a nominal composition of 5Ni/CeZrM (where M= Ca, Gd, Mg) was prepared, characterized and tested in the process. A series of experiments was conducted in a Packed Bed Tubular Reactor (PBTR) using a factorial design technique to investigate the … Lire la suite
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2023 — Resonator sensors integrated in bandpass filters for the detection and attenuation of interfering signalsRésumé
In microwave systems, RF front end devices are subjected to interference signal, this interference signal can damage the receiver end or disrupt wanted signals. This thesis proposes a method of sensing the interference signal by weak coupling a resonator to the filter. The proposed method employs a combline bandpass filter at 2 GHz center frequency at 5% bandwidth, which was designed on Advanced Design System (ADS) software and space mapping was performed to optimize the parameters. By weakly coupling the resonator to the filter, the interference signal of certain threshold power can be sensed. The resonator sensor designed are of … Lire la suite
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2014 — Mechanisms of Oil Recovery During Cyclic CO2 Injection process: Impact of Fluid Interactions, operating parameters, and Porous MediumRésumé
Carbon dioxide (CO2) injection processes are among the most promising enhanced oil recovery techniques based on their great potential to improve oil production while utilizing geological storage of carbon dioxide to reduce greenhouse gas emissions. Among various CO2 injection modes, cyclic CO2 injection (CO2 huff-and-puff) scenarios have seen significant increase in interest for the purpose of enhanced oil recovery (EOR) in both non-fractured and fractured reservoirs. Several operating parameters, including operating pressure, solvent (CO2) injection time, soaking period, water saturation, etc., affect the performance of this process. However, the number of studies that consider these parameters is relatively limited. In … Lire la suite
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2022 — Active eavesdroppers detection system in multi-hop wireless sensor networksRésumé
Wireless Sensor Networks (WSNs) are vulnerable to eavesdropping attacks that endanger their privacy, confidentiality, and authenticity. As the broadcast nature of the wireless channel makes it susceptible to eavesdropping by adversaries, the detection of eavesdroppers in wireless networks can lessen the chances of more damaging attacks. Historically, researchers have attempted to reduce the risk of covert eavesdropping through the use of cryptographic protocols, information-theoretic solutions, and transmission range control. These methods are not suitable for WSNs with resource constraints. It is noteworthy that active eavesdroppers are legitimate nodes that are compromised by adversaries to eavesdrop on traffic while performing their … Lire la suite
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2013 — Agent Trust Management Based on Human Plausible Reasoning and Rough Sets: Application to Agent-based Web searchRésumé
Nowadays, there is a growing need to manage trust in open systems. Service providers can autonomously join and leave the open system at any time. Thus, an open system may contain untrustworthy service providers. In order to handle the autonomy of providers, multi agent systems are used to develop open systems. In a virtual society, which consists of several autonomous agents, trust helps agents to deal with the openness of the system by identifying the best agents capable of performing a specific task, or achieving a specific goal. In this research, we first introduce ROSTAM, a new approach for Agent … Lire la suite
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2017 — Reaction Kinetics and Dissociation constants of Tertiary Alkanolamines for Carbon CaptureRésumé
This research work studies the absorption kinetics of CO2 into aqueous solutions of four amines; {1-[Bis [3-(dimethylamino) propyl] amino]-2-propanol, N, n, n′, n′′, n′′-pentamethyldiethylenetriamine, N, n, n′, n′-tetrakis (2-hydroxyethyl) ethylenediamine, and N, n, n′, n′-tetrakis (2-hydroxypropyl) ethylenediamine}. The experimental results were reported in the form of secondorder reaction rate constants (k2). The kinetics data were measured using the Stopped-flow technique within an amine concentration range of 200 to 1000 mol/m3 and a temperature range of 298 to 318K. The equipment can determine the solution-based kinetics on a millisecond time scale by measuring the reaction rate of the reactants. The different … Lire la suite
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2019 — Determination of Endocrine Disrupting Chemicals in Water and Wastewater in SaskatchewanRésumé
A liquid chromatography-negative ion electrospray ionization-tandem mass spectrometry (LC-ESI--MS/MS) method was developed for the simultaneous analysis of endocrine disruptive chemicals including bisphenol A, 4-octylphenol, 4-nonylphenol, diethylstilbestrol, 17-β-estradiol, estriol, estrone, 17-α-ethinylestradiol, prednisone and prednisolone. Mass spectrometric detection of these target analytes is sensitive to the presence of additives in the mobile phase as well as those used in the sample preparation steps. To avoid issues with reduced mass spectrometry sensitivity, the sample preparation involved elution of the target analytes from the solid-phase sorbent with acetonitrile, drying, and reconstitution with methanol, water, and 2-propanol. Recoveries for all the analytes were from 82.4 … Lire la suite
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2013 — A Framework for Divisible Load E-science Applications in Optical GridsRésumé
E-science applications require discovering, collecting, transferring and processing large volumes of scientific data. In divisible load e-science applications, data is generated and stored in geographically distributed repositories (e.g., instruments, sensors, cam- eras, satellites and storage facilities). The generated data can be divided into in- dependent subsets to be analysed distributed at many computing locations. Such applications usually require optical networking for fast and reliable data transfer. In this thesis, we propose a framework for divisible load applications in optical grids. Within this framework, schedulers are developed to co-schedule computational and optical network resources. Moreover, processes to handle divisible load applications … Lire la suite
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2016 — Leadership and Health Information Management in CanadaRésumé
Health Information Management (HIM) professionals play a critical role in Canadian health settings. HIM professionals maintain the health information vital to providing quality patient care and they often serve in bridge roles that connect clinical, operational, administrative, and financial functions (AHIMA, 2015). Despite the importance of HIM to health care, HIM professionals are not represented at higher levels of management where their knowledge and expertise should be welcomed. Research on the reasons HIM professionals do not achieve and perform leadership roles in Canadian health settings is considerably limited. This study explored the factors that influence leadership development of HIM professionals … Lire la suite
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2014 — Clarifying the Nature of Pain-Related Anxiety: Implications for Assessment and Treatment of Chronic Musculoskeletal PainRésumé
Pain-related anxiety and anxiety sensitivity (AS) are important constructs in fearanxiety- avoidance models of chronic pain (Asmundson, P. J. Norton, & Vlaeyen, 2004). Pain-related anxiety (McCracken & Gross, 1998) includes dimensions of cognitive anxiety (e.g., concentration difficulties as result of pain), behavioural avoidance, fearful thinking about pain, and physiological reactivity to pain (e.g., autonomic arousal, nausea). AS (Reiss, Peterson, Gursky, & McNally, 1986) is the trait tendency to fear the physiological sensations of anxiety due to the belief such sensations signal imminent harm. Evidence suggests an association between AS and pain-related anxiety (e.g., Muris, Schmidt, Merckelbach, & Schouten, 2001; P. … Lire la suite
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2023 — The role of intercultural communicative competence in the acquisition of English as an Additional Language for Arab Learners: A hermeneutic phenomenological studyRésumé
This hermeneutic phenomenological study examines Arab female newcomers’ lived experiences in an English as an Additional Language (EAL) program and their acquisition of intercultural communicative competence. Two in-depth semi structured interviews were conducted with seven students enrolled in the Language Instruction for Newcomers to Canada (LINC) program to reveal the challenges that face EAL learners that make it difficult for them using the language effectively in real life situations. In addition, I used journaling as another source of data to review my personal biases and to develop a new projection of meaning. Thematic analysis was utilized to find patterns of … Lire la suite
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2018 — Play It Loud: A Creative Music Program For Youth In ReginaRésumé
Play it Loud was a creative music project I developed for youth in residence at Ranch Ehrlo, a multiservice agency providing care for families and youth in Saskatchewan. As an interdisciplinary project drawing on artistic and ethnographic qualitative research methodologies, it seeks to understand how youth in care, facing a diverse set of challenges, grow and heal while creating new music. I believe playing music can promote healing and growth in youth. I used musical improvisation as the pedagogical foundation to create the opportunity for participants to teach themselves through experimentation and enable their creative expression. In response to the … Lire la suite
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2017 — Some Probability Properties of the Crack DistributionRésumé
The three parameter Crack distribution is useful for statistical analysis in prospective studies connected with the engineering problem of fatigue crack development in a metallic plate under some kind of pressure loading. As special cases it contains such well known distributions as the Birnbaum-Saunders distribution, the Inverse Gaussian distribution, and the Length Biased Inverse Gaussian distribution. These distributions are all related and have their own characteristics. In this thesis, in Chapter 2, I derive new, more direct and more mathematically appealing methods for obtaining the distribution function and the moment generating function for the Crack distribution. In Chapter 3 I … Lire la suite
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2017 — Little Wonders: A Memoir in Four PartsRésumé
My creative thesis, Little Wonders: A Memoir in Four Parts, is a manuscript of literary nonfiction. I reflect on the past with respect to marriage and motherhood in the lives of my grandmother, my mother, myself, as well as on the experiences of my two sons. I explore memories in order to uncover the significance of being able to remember them. This memoir reflects on my decision to make a new life for myself and my sons alone, a conclusion I consider against the life choices of my mother and grandmother, thereby shedding light on the intergenerational transmission of gendered … Lire la suite
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2021 — Metamemory and Lineup Selection: Can Children’s Metacognitive Beliefs Influence Lineup Selection?Résumé
Child eyewitnesses pose a continuous challenge for the criminal justice system. Researchers have made repeated attempts to combat children’s problematic over-choosing from a photographic lineup (e.g., Pozzulo & Lindsay, 1999), but difficulties remain. Although there have been multiple hypotheses put forth that attempt to explain why children struggle with correctly rejecting target-absent lineups (i.e., saying the perpetrator is not there when s/he is not), none have fully explained the reason for children’s error patterns (Dunlevy & Cherryman, 2013; Pozzulo & Lindsay, 1997). One possibility is that children overestimate the accuracy of their own memory. Children often exhibit similar levels of … Lire la suite
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2022 — Rationing desire: Canadian sugar rationing in Second World War advertisingRésumé
Through a study of advertisements in the English Canadian press between 1939 and 1947, this thesis explores Canada’s Second World War sugar ration program. Canadian Second World War coupon rationing began with sugar, and Canadian advertisers referenced sugar rations regularly to sell a variety of consumer goods. This thesis argues that advertisers approached the subject of sugar rationing through eight advertising strategies throughout the Second World War and in the immediate postwar years. By portraying sugar and sugar rations in creative ways, advertisers were able to maintain relevancy and even increase sales in some circumstances. Lire la suite
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2017 — Inclusive Post-Secondary Education and Qualiy of Life: A Case StudyRésumé
The following study explores the experiences of students in the Inclusive Post-Secondary Education (IPSE) program, Campus For All, at the University of Regina. The case study examines the experiences of the students while using elements of the Schalock, Bonham, and Verdugo (2008) Quality of Life (QOL) framework as a guide for the semi-structured interviews and data interpretation. IPSE programs began to emerge in Canada almost thirty years ago to allow students with intellectual and developmental disabilities the opportunity to attend post-secondary institutions with the intent of offering an authentic and inclusive student experience. Since then a modest body of literature … Lire la suite
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2023 — Intelligent prediction of parameters of electric vehicles using artificial neural networksRésumé
This study is laser focused on the use of artificial neural networks for the prediction of parameters of electric vehicles. The study is divided into five segments. The first segment involves the application of an artificial neural network in the prediction of parameters of pure electric vehicles for design simulation purposes. The second segment is based on the application of supervised machine learning for the prediction of fuel consumption in plug-in hybrid electric vehicles. The third segment involves the application of an inverse neural network approach for the prediction of multiple outputs for the design simulation of battery electric vehicles … Lire la suite
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2024 — L'insécurité linguistique chez les élèves d'immersion française en SaskatchewanRésumé
Although French immersion program has been quite successful over the last few years in Saskatchewan due to the number of students enrolled in the program, many students in the program demonstrate a lack of confidence in expressing themselves in French. This PhD thesis attempts to provide a better understanding of linguistic insecurity among French immersion students in Saskatchewan while drawing on the perspectives of students and teachers; perspectives such as these are not clearly reflected in most studies on linguistic insecurity among French immersion students in Canada. The qualitative and quantitative data collected from students and teachers lead to the … Lire la suite
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2024 — Do microaggressions influence cognitive performance of racial minorities?Résumé
Within the university setting, students from marginalized groups may be more likely to experience microaggressions and associated harmful effects than their White counterparts. This study investigated whether experiencing a racial microaggression hinders performance on a cognitive task among racialized students. Undergraduate students (n = 256) completed a demographic survey and then were randomly assigned to a racial microaggression or control condition in which they watched a video explaining a cognitive task (i.e., mental rotation), completed a mental rotation task, and completed ethnic identification, discomfort, and perceived discrimination measures. Racialized students had higher ethnic identification levels than White students. Further, students … Lire la suite
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2018 — On the Effects of Nonlinearity Between Variables on the Correlation CoefficientRésumé
A simulation study by Monte-Carlo method was used to investigate the e ect of violating the assumption of bivariate normality on the Pearson correlation coe cient. We also examined the impacts of nonlinearity between a pair of variables when they are not independent, even though the population correlation is zero. The results of the study showed that there is a great impact when such violations of normality occur. It also showed the rate of Type I error can either be quite small or large in contrast to the assumed error rate. We made a recommendation that the t statistic be … Lire la suite
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2016 — Organic geochemical assessment of the Upper and Lower Members of the Bakken Formation, southern SaskatchewanRésumé
The Upper and Lower Members of the Bakken Formation (Late Devonian- Early Mississippian) are some of the most prolific petroleum source rocks of the Williston Basin. However, despite their excellent petroleum potential, the available geochemical data appears insufficient to provide a complete understanding of variations in organic matter content, kerogen Type and petroleum generative potential. Using a combination of bulk geochemical analysis, augmented by gas chromatography (GC) and gas chromatography-mass spectrometry analyses (GC-MS), as well as high-resolution sampling of drill core from 32 boreholes, results clearly show that a significant degree of variation exists in every geochemical parameter, both depth-wise … Lire la suite
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2021 — Panafricanisme et développement en Afrique : Un regard philosophiqueRésumé
After roughly six decades of independence, the continent of Africa continues to face numerous challenges due to its unstable political climate, and perhaps as a result of the complexity of the political and economic structures on which African states were built. African scholars and philosophers have identified various factors that impede Africa’s development. There is a vast literature indicting European imperialism and its damaging effects on Africa’s economy and its people for the problems that the continent continues to battle with in the 21st century. Yet, there are other endogenous conditions that sustain Africa’s dependency on the West, and perpetuate … Lire la suite
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2024 — Hydrothermal liquefaction of pulp and paper mill residues for renewable biocrude productionRésumé
The climate change challenge has prompted global governments and international organizations to implement measures aimed at reducing greenhouse gas emissions and mitigating their impact on the ecosystem. The pulp and paper industry, a major contributor to global waste generation, often lacks efficient waste disposal methods despite the energy-rich nature of its waste products. Consequently, there is a pressing need to intensify research efforts on valorizing and utilizing pulp and paper waste residues thereby checking the inordinate disposal of effluents from this sector, hence this thesis. The objective of this research is to investigate the effects of reaction parameters such as … Lire la suite
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2025 — Beyond net-zero carbon emissions in industrial processes through catalyst-aided amine solvents for the indirect co-combustion of natural gas and biomassRésumé
This thesis investigates the application of absorber catalysts developed and optimized for effective CO₂ capture in a power production process involving the indirect co-combustion of biomass and natural gas, addressing a crucial case study challenge of carbon emissions from large. By employing a novel bi-blend amine solvent system, improved by heterogeneous solid base catalysts, the study explores the synthesis of various super basic catalysts in a bid to optimize CO₂ absorption rates, solvent loading, and overall process efficiency A series of heterogeneous catalysts which include PEI modified catalysts, K/MgO, K/MgO-CaO, and activated carbon blends, were synthesized and tested using a … Lire la suite
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2022 — Modeling of municipal waste disposal behaviors related to meteorological and astronomical seasons using recurrent neural network modelsRésumé
The literature suggests that Long Short-Term Memory (LSTM) paired with recurrent neural network (RNN) can better express long- and short-term reliance of a data set. Study one quantifies mixed waste disposal (MWD) behaviors at a Canadian landfill from 2013 to 2021, and develop separate RNN-LSTM models to predict MWD rates under four meteorological seasons. Seasonal variations are clearly presented in the historical disposal data, with higher MWD of 417.8 tonnes/month in summer and about 289.7 tonnes/month in winter. The variabilities of MWD are also different among the seasons. Winter experienced the least variation, probably due to similarities in inhabitants’ lifestyles. … Lire la suite
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2018 — Kinetic Studies on Catalyst-Aided Absorption and Desorption in a Bench-Scale Post-Combustion CO2 Capture Pilot Plant Using a Novel Solvent BlendRésumé
A total of seven solid base/alkaline catalysts comprising BaCO3, CaCO3, Ca(OH)2, Cs2O/α-Al2O3, Cs2O/γ-Al2O3, K/MgO and Hydrotalcite were screened on a semi-batch scale to select the most suitable for CO2 absorption into a novel aqueous solvent, BEA/AMP. The selected catalyst was incorporated into the absorber section of a benchscale pilot plant and its kinetic performance was evaluated. Intrinsic kinetic data were extracted and kinetic parameters were determined. Both cases of reversible and irreversible reactions of CO2 with the aqueous BEA/AMP solvent were analysed. An activation energy, Ea of 5.67E+04 J/mol and 3.40E+04 J/mol were obtained for the reversible and irreversible cases … Lire la suite
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2020 — Statistical Inference for the Discrete Laplace DistributionRésumé
In this study, two estimators of the parameter p of the discrete Laplace distribution DL(p) are considered. The classical method of moments estimator (MME) was derived, and the asymptotic normality of its distribution proved by applying the delta method and juxtaposed with the maximum likelihood estimator(MLE). The accuracy and the asymptotic normality of both estimators were probed using simulation studies. The results of the comparison showed that the estimators were normally distributed when the sample size was large for all values of p. It was also revealed that the MLE was efficient for all scenarios considered. The MME was efficient … Lire la suite
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2014 — Investigating the Prevalence and Persistence of Different Escherichia Coli Genotypes in an Agriculturally Influenced Aquatic EcosystemRésumé
In several regions of Canada, including Saskatchewan, surface water such as streams and rivers are utilized as primary sources of irrigation water for fresh produce. Surface water can be exposed to faecal pollution from various sources such as storm water runoff, failing septic systems, and agricultural waste runoff. The use of faecally contaminated water in irrigating fresh produce may lead to food-borne outbreaks when enteric pathogens are present in the faeces. The ability to predict the presence of faecalderived pathogens is therefore important in assessing the human health risks associated with the use of open source irrigation water. Escherichia coli … Lire la suite
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2014 — LA PASSIVITÉ DE LA DYNAMIQUE MOTIVATIONNELLE DANS LA FORMATION DES VOCABULAIRES GASTRONOMIQUES FRANÇAISRésumé
The study of role of motivation in the formation of new vocabulary and terminological units, taking into account the semantic relationship that exists between linguistic signs and their referents, is not new. This is an area that has generated lots of discussions and debates over the years. There have been various philosophical, sociological, linguistic and terminological arguments that motivation is indispensable in the course of word formation in French and that it exercises enormous influence on the referents of new words. However, there are other arguments that consider motivation as a non - factor in the formation of new words … Lire la suite
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2015 — Convergence and Comparison Theorems for Various Splittings of Matrices Based on Generalized InversesRésumé
The convergence of iterative methods for numerically solving the linear systems of equations associated with different types of splittings has been well studied in the literature. In this dissertation, we define new types of splittings based on generalized inverses (Moore-Penrose inverse, Drazin inverse, Group inverse) and present convergence results based on those splittings, namely, Weak Nonnegative Proper Splitting, Proper Regular Splitting, Index Proper Regular Splitting, Weak Nonnegative Index Proper Splitting, Group Proper Regular Splitting, and Weak Nonnegative Group Proper Splitting. We also present some new comparison theorems between the spectral radii of matrices, which are useful in the analysis of … Lire la suite
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2021 — L’étude du Français comme matière dans un contexte anglophone : Le cas de trois Établissements postsecondaires au GhanaRésumé
The French language is the fifth most spoken language in the world and the fourth most used language on the Internet, with over 300 million speakers in the world and 132 million French learners. In addition to this, Africa is home to 59 % of daily French speakers, according to the Organisation internationale de la Francophonie. However, the existing teaching methods for learning French do not always satisfy the linguistic needs of students, making it oftentimes difficult for graduates on the continent to meet language demands in their various fields of study and profession. By means of Ghana’s recent membership … Lire la suite
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2015 — Terrorism Turned Monstrous: An Examination of Post-9/11 Science-Fiction-Horror Films Adapted from Pre-9/11 Source TextsRésumé
This thesis explores three post-9/11 film adaptations, War of the Worlds (2005), I Am Legend (2007), and The Mist (2007), in an attempt to better understand societal influences on the adaptation process by examining the alterations that a literary adaptation prepared to go to film undergoes in order to suit a contemporary audience. The ways in which we negotiate cultural trauma are not direct and it may take time and mediation in order for the trauma to be healed. This thesis argues that mediation of the cultural trauma associated with 9/11 is directly connected to Hollywood blockbuster science fiction and … Lire la suite
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2023 — Immortal tulipsRésumé
“Immortal Tulips” is my graduation show at the Fifth Parallel Gallery. From November 6th to November 17th, 2023, I will exhibit the results of my Master of Fine Arts program. In this exhibition, I present five pieces, including “Blood Rain,” “As Gentle as Death,” “Bloody November – آبان خونین ” “One Step Forward,” and “Ayatollah’s Office.” By presenting a variety of installations in this exhibition, using the three simple motifs of tulips, nooses, and threads, I create an atmosphere to immerse the audience in the emotions I feel regarding my country’s situation. I have felt desperation, agony, and sorrow because … Lire la suite
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2017 — Role of C3H8 and CH4 in Enhancing the Foamy Oil Phenomena and Performance of CO2-Based Cyclic Solvent Injection in Heavy Oil SystemsRésumé
As light oil resources are continuously depleted, heavy oil exploitation is nowadays being put on agenda to meet the ever-increasing energy demand. Cyclic Solvent Injection (CSI) technique holds great promise as a viable approach to produce heavy oil from thin reservoirs where thermal and gravity-dominated recovery methods fail to sufficiency (and economically) recover oil. CSI, with CO2 being used as the solvent, has become a subject of several investigations and considerable speculation in light oil systems. Nevertheless, not too many studies ventured into realm of application of CO2 in heavy oil systems. In addition, importance of C3H8 and CH4 in … Lire la suite
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2021 — Estimation of Near Wellbore Thermal Properties Using Distributed Temperature and Flow Rate Data During ProductionRésumé
Thermal properties of the underground formation govern the downhole thermal processes such as geothermal energy utilization and thermal enhanced oil recovery. In order to design and monitor the subsurface thermal processes, accurate values of the thermal properties are needed. Unless perfect descriptions of the formation and fluids are given, the results of measuring the thermal properties of formation and fluid-formation systems are of limited value. However, calculation of such properties is effortful, costly and time consuming. Therefore, a need exists to propose models of predicting thermal properties from other more effortlessly measurable properties. With technology development, in-situ measurements have gotten … Lire la suite