Dissertations / Theses on the topic 'Récupération assistée des hydrocarbures'
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 46 dissertations / theses for your research on the topic 'Récupération assistée des hydrocarbures.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
Beaumont, Julien. "Ecoulements de fluides viscoélastiques en géométries confinées : application à la récupération assistée des hydrocarbures." Phd thesis, Université Sciences et Technologies - Bordeaux I, 2013. http://tel.archives-ouvertes.fr/tel-00998545.
Full textPinilla, Velandia Johana Lizeth. "Modélisation et simulation à l' échelle du pore de la récupération assistée des hydrocarbures par injection de polyméres." Thesis, Bordeaux 1, 2012. http://www.theses.fr/2012BOR14667/document.
Full textThis work is motivated by the need for better understanding the polymer Enhanced Oil Recovery (EOR) technique at the pore-scale. We consider two phase immiscible fluids in a microchannel network. In microfluidics, the diameter of the channels is of the order of a few tens of micrometers and the flow velocity is of the order of one centimeter per second. The incompressible Stokes equations are used to describe the fluid flow. The Oldroyd-B rheological model is used to capture the viscoelastic behavior. In order to perform numerical simulations in a complex geometry like a microchannel network, a penalization method is implemented. To follow the interface between the two fluids, the Level-Set method is employed. The dynamic contact line model used in this work is based on the Cox law. Finally, we perform simulations with realistic parameters
Dupas, Adeline. "Dégradation mécanique de solutions de polymères et ses impacts en récupération assistée d'hydrocarbures." Phd thesis, Université de Bretagne occidentale - Brest, 2012. http://tel.archives-ouvertes.fr/tel-00830622.
Full textPacini-Petitjean, Claire. "Réactivité des hydrocarbures en réponse à une injection de CO2/O2 dans des conditions de réservoirs pétroliers déplétés : modélisations expérimentale et numérique." Thesis, Université de Lorraine, 2015. http://www.theses.fr/2015LORR0020/document.
Full textThe geological storage of CO2 (CO2 Capture-Storage – CCS) and the Enhanced Oil Recovery (EOR) by CO2 injection into petroleum reservoirs could limit CO2 atmospheric accumulation. However, CO2 can be associated with oxygen. To predict the hydrocarbon evolution under these conditions involves the study of oxidation mechanisms. Oxidation experiment and kinetic detailed modeling were carried out with pure compounds. The comparison between experimental and modeling results led to the construction of a hydrocarbon oxidation kinetic model and emphasized the parameters leading to auto ignition. The good agreement between our experiments and modeling are promising for the development of a tool predicting the critical temperature leading to auto-ignition and the evolution of hydrocarbon composition, to estimate the stability of a petroleum system in CO2 injection context
Cochard, Thomas. "Injection de tensioactif pour la récupération assistée du pétrole : implication sur les lois régissant les écoulements eau-hydrocarbure-tensioactif en milieu poreux." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066647/document.
Full textThe main objective of the PhD is to study experimentally the oil mobilization using surfactant in a porous media below the residual oil saturation. At the residual oil saturation, the oil network is disconnected and organized in ganglia of different sizes and shapes all along the sample. This residual oil is difficult to produce in the classical conditions of water flooding because of capillary trapping created by the interfacial tension between oil and water. Injection of surfactant is able to mobilize the remaining oil at flow rates consistent with the real case of an oil mature reservoir. The use of surfactant allows lowering the interfacial tension by several orders of magnitude, towards ultra-low values (10-3 mN/m), strongly decreasing the capillary forces and so, mobilizing the oil. The first main study of the PhD work was to characterize the displacement of the surfactant injected in a sandstone sample in monophasic conditions (without oil). Breakthrough curves have been analyzed in term of dispersivity and adsorption. Experiments have shown that a better way to model the surfactant transport is to use a Langmuir kinetic adsorption model. For the diphasic case, we have developed a microfluidic 2D system with a random pore geometry of controlled conditions. The experiments are based on the injection of a small ganglia through a central channel, then, a surfactant flood is generated. The aim is to see how ganglia are displaced within the micromodel. New mechanisms have been identified and a way to model those phenomena has been proposed. A better understanding of surfactant and oil transport in porous media is key for chemical enhanced oil recovery processes
Paillet, Sabrina. "Polyélectrolytes associatifs: Synthèse, Caractérisation, Propriétés en Ecoulement et Application pétrolière." Phd thesis, Université de Pau et des Pays de l'Adour, 2009. http://tel.archives-ouvertes.fr/tel-00419736.
Full textEven, Véronique. "Analyse de tensio-actifs non ioniques dans le contexte de la récupération assistée : application à des phases aqueuses ayant transité sur des roches mères." Paris 6, 1986. http://www.theses.fr/1986PA066604.
Full textMata, Wilson Da. "Récupération assistée des pétroles visqueux par ondes électromagnétiques." Toulouse, INPT, 1993. http://www.theses.fr/1993INPT042H.
Full textJuarez, Morejon Jose Luis. "Récupération assistée du pétrole par injection de polymères hydrosolubles : nouvelle approche." Thesis, Bordeaux, 2017. http://www.theses.fr/2017BORD0608/document.
Full textPolymer flooding is one of the most developed chemical enhanced oil recoverymethod that has been used successfully since decades. In this chemical EOR method, thepolymer is adding to a waterflood to decrease its mobility. The resulting increase in viscosityas well as a decrease in aqueous phase permeability improve macroscopic oil sweepefficiency. At the pore scale, viscoelasticity is known to be also a key parameter that controlsthe microscopic sweep efficiency. However this sweep efficiency depends on several factorslike the permeability, temperature, salinity, wettability, capillary number, heterogeneity, etc.Therefore several studies are still necessary to have a better understanding of the behaviourof the polymer inside porous media and to optimize the process.• What is the best moment to inject polymer?• What is the role of wettability in final recovery?• How do viscoelastic effects influence recovery?• What is the role of adsorption of the polymer in the recovery process?In our interest to optimize and to understand polymer flooding process we have analysed thedependence of the sweep efficiency with the moment of the polymer injection duringwaterflooding and wettability (Water wet and intermediate wet). The polymer solution isinjected in the core at different maturity times (0PV, Breakthrough, 1PV, 2PV, 3PV, 4PV and6PV).The main results can be summarized in three points .The results show oil recoveryfinal for water wet corefloods is lower than intermediate wet corefloods. On the other hand, theproduction of oil with the injection of polymer is higher than the injection of water due to afavorable mobility ratio. Finally, the final recovery rates are lower when the polymer injectionis late. These results suggest that the history of sweeping can lead to different distributions ofphases (oil/brine) at the end of the waterflood. The sweep efficiency is related to the ability ofthe polymer to disperse throughout the accessible portal space. We have analysed this aspectfrom the point of view of the diphasic dispersion by showing that the dispersivity of the phasesis different at each time of the water injection. The complementary diphasic dispersionexperiments showed a direct link between dispersivity and the final oil recovery
Avendano, Jorge. "Viscoélasticité et récupération améliorée du pétrole." Phd thesis, Université Paris-Est, 2012. http://pastel.archives-ouvertes.fr/pastel-00695896.
Full textPilliez, Jonathan. "Propriétés structurelles d'huiles lourdes en écoulement : application à la récupération assistée d'hydrocarbures." Pau, 2008. http://www.theses.fr/2008PAUU3036.
Full textDuring this thesis untitled “Structural properties of extra heavy oils: an application for hydrocarbon assisted recovery” we were interested in the classification of essentials parameters for the oil production. In a first time, we studied the physic of flowing in porous media to select key parameters to study. Main flow characteristics found in the literature or used in simulators are viscosity and properties of the porous media as porosity and permeability. The first parameter studied here is oil viscosity: we succeed in determining oil viscosity depending on different parameters like temperature, strain or stress imposed to model our oil behaviour. However this study was not as appreciated as expected and we decided to carry on a rheological study. This second part was very useful because it permits us to check the visco elastic behaviour of extra heavy oils. Thanks to this second part, we were able to understand that visco elasticity is due to asphaltene molecules in oil and to interactions induced. The second parameter we were focused on is the porosity of deposits: a tomography study was performed on different minerals and we were able to observe and characterise different kinds of carbonates and notice their fluctuations in porosity, structures and fractures. Micro tomography was also used to examine gas bubble nucleation and growth extra heavy oils held in porous media during a depletion process. Finally, the last part of our work was performed to model flows in porous media to test the influence of various parameters we were focussed on during this thesis
El, Ahmar Elise. "Combustion assistée par hydrogène et radicaux générés par plasmas non thermiques." Orléans, 2007. http://www.theses.fr/2007ORLE2030.
Full textGassara, Omar. "Modélisation des écoulements de mousse dans les milieux poreux en récupération assistée du pétrole." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066588/document.
Full textConventional techniques of oil recovery consist in injecting water and/or gas into the geological formation to force out the oil. These methods may reveal ineffective because of high permeability contrasts, unfavorable mobility ratio between the driving fluid and the oil in place which generally generates viscous fingering, and gravity segregation. In this context, foam has shown a great potential to overcome all these detrimental effects, and thereafter, to improve the volumetric sweep efficiency. Still some key points need to be addressed regarding the predictive calculation of multiphase foam flow in porous media. Methods for modeling foam flow in porous media fall into two categories: population balance (PB) models and (semi)-empirical (SE) models. On the one hand, PB models describe foam lamellas transport in porous media and predict the evolution of foam microstructure as the result of pore-scale mechanisms of lamellas generation and destruction. Within this framework, the modeling of foam effects on gas mobility is directly related to foam texture (lamellas density) along with the effects of other parameters impacting its rheology such as foam quality and velocity, permeability of the porous media, surfactant concentration, etc. On the other hand, SE models are based on the extension of multiphase classical Darcy's model to describe foam flow in porous media, such that the foam texture effects are described indirectly through a multi-parameter interpolation function of parameters measured/observed in laboratory. Such formulation has to be calibrated from foam flow experimental data on a case-by-case basis, which can turn to be a cumbersome task. Furthermore, SE models involve uncertainty because they are not based on mechanistic laws driving lamellas transport in porous media, and their predictive capacity remains low as too few laboratory data are generally available for their calibration. Nonetheless, the reservoir engineer needs a reliable foam model in order to design, assess and optimize foam enhanced oil recovery processes for field application. Accordingly, this thesis aims at providing further insights into the topics related to the parameterization of (semi)-empirical models through better formulated and calibrated laws in order to improve their predictivity. In this work, we have established the physical basis necessary to validate the (semi)-empirical models. Indeed, we developed the equivalence between SE and PB models achieved through relationships between the parameters of these two modeling approaches (industrial and physical). The equivalence has been established and studied using a pre-calibrated PB model of the literature to fit steady-state foam measurements. In addition, this equivalence allowed us to develop a new procedure to calibrate the (semi)-empirical models in a reliable and deterministic way. This procedure was tested and validated using results from IFPEN core-flood experiments by translating them into steady-state texture measurements. Finally, we proposed scaling laws for empirical model parameters with the permeability of the porous media, by analyzing the fitted parameters on cores of different permeabilities. Different interpretations of the scaling laws are herein provided using theoretical models for lamellas stability. Then, their importance has been demonstrated through simulations on a two layer reservoir cross-section. The simulation results indicate that the predictions of foam flow in a heterogeneous reservoir require a good knowledge of the scaling laws of SE model parameters with permeability
Cottin, Christophe. "Drainage dans des micromodèles de milieux poreux Application à la récupération assistée du pétrole." Thesis, Bordeaux 1, 2010. http://www.theses.fr/2010BOR14089/document.
Full textDrainage experiments in model porous media are performed. Our 2D micromodels consist of a regular network; they are made in glass or in PDMS. The wetting properties of the chip vary from total, pseudo-partial to partial wetting. Experiments are performed under flow rate control. Taking advantages of microfluidic devices, local velocities of the injected fluid are measured. The average of all these local velocities is compared to the velocity imposed by the syringe pump. Before percolation, the invasion percolation process for all wetting cases is studied. Depending on the wetting properties, several behaviours are observed. We develop a model to explain our experimental data. After percolation, the effects of wetting are huge; we explain why oil could remain trapped or not. Finally, we consider the influence of rheology by injecting non Newtonian liquids as pushing fluids, and also the effects of preferential paths
Crozzolo, Julien. "Synthèse et étude de copolymères hydrosolubles, associatifs et échangeables pour la récupération assistée du pétrole." Thesis, Université Paris sciences et lettres, 2020. http://www.theses.fr/2020UPSLS002.
Full textOne of the solutions for enhanced oil recovery is the use of aqueous formulations of polymers in order to improve the rheological properties of the extracting fluid and allow a better sweeping in the oil well. Because the polymers currently used do not allow for an efficient oil recovery, a new system was designed and studied with the aim to develop additives that could better withstand the very high shear rates induced by the injection. This system is based on the use of complementary polymers that can reversibly associate and exchange through imine chemistry. First, a thermodynamic study of the amine-aldehyde association allowed quantifying the influence of different parameters on the latter. Then, the rheological study of polymers alone in solution and of formulations of complementary polymers has shown the efficiency of the association trough a large increase in viscosity of the solutions, as well as by the formation of gels at low polymer concentration. The study of the influence of structural parameters has shown that the rheological properties of the formulation can be adjusted by playing on the polymer composition and functionality. The influence of parameters of interest for the application, such as pH, temperature and ionic strength, has also been studied. Finally, industrial tests have been performed with the polymers developed during this thesis, providing a comprehensive study of the system, from the synthesis of the monomers to application oriented tests
Rowaik, Bader. "Contribution à l'étude des équilibres de phase et des propriétés rhéologiques de microémulsions utilisées en récupération assistée du pétrole." Mulhouse, 1990. http://www.theses.fr/1990MULH0137.
Full textMornard-Pochet, Bernadette. "Adsorption et rétention des tensio-actifs anioniques par une argile kaolinique : application à la récupération assistée du pétrole." Vandoeuvre-les-Nancy, INPL, 1987. http://www.theses.fr/1987NAN10102.
Full textHussein, Mohsen. "La récupération assistée du pétrole par injection du gaz carbonique supercritique : étude de l'équilibre liquide vapeur par simulation." Châtenay-Malabry, Ecole centrale de Paris, 1993. http://www.theses.fr/1993ECAP0293.
Full textRodriguez, Manrique Fernancelys Del Carmen. "Combinaisons tensioactifs-polymères pour la Récupération Améliorée des Hydrocarbures (RAH) par voie chimique appliquée aux réservoirs de pétroles extra-lourds : propriétés de transport en milieux poreux et mécanismes de récupération." Sorbonne Paris Cité, 2016. http://www.theses.fr/2016USPCC048.
Full textThis thesis is a study of injection of chemicals as an Enhanced Oil Recovery Method (CEOR) in reference to an extra-heavy oil reservoir case in Venezuela. Firstly, the polymer transport properties of concentrated polymer solutions have been investigated in porous media in monophasic conditions. This has involved: polymer dosage, rheological characterization and coreflood experiments that allowed quantifying the polymer retention, the mobility reduction effect including injectivity aspects. It has been observed that retention/adsorption increases with polymer concentration and that modeling based on depletion layers effects is an effective tool to interpret the mobility reduction values. Secondly, oil, brine and rock from a Venezuelan extra-heavy oil reservoir have been characterized and oil recovery tests in porous media have been carried out. These tests aimed at determining the ultimate residual oil saturation achievable by CEOR. Experimental results on both Bentheimer outcrops and reservoir rock have shown that surfactant-polymer (SP) flooding in secondary conditions is the most relevant process at core scale. SP flooding appears in particular more effective than sole polymer (P) and surfactant (S) flooding. Reduction of viscous instabilities, and hence improvement in mobility control after SP flooding, has been confirmed from CT-scanner analysis. The results obtained in this work at the laboratory scale, are aimed at being used as input data for simulating CEOR processes at the reservoir scale. This opens the way towards realistic economic assessments on CEOR for extra¬heavy oil in Venezuela and large scale field developments
Chenevière, Pascal. "Méthodologie d'étude du transport transitoire de suspension dans les milieux : application à la récupération améliorée des hydrocarbures par voie microbienne." Vandoeuvre-les-Nancy, INPL, 1989. http://www.theses.fr/1989NAN10396.
Full textAinous, Nédal. "Réalisation d'un appareil d'analyse en ligne pour l'étude des équilibres liquide-vapeur : application à la récupération assistée des bitumes." Lyon 1, 2005. http://www.theses.fr/2005LYO10232.
Full textSadaoui, Zahra. "Etude des conditions de récupération de métaux lourds contenus dans les rejets aqueux, par ultrafiltration assistée : cas du chrome hexavalent." Aix-Marseille 3, 1995. http://www.theses.fr/1995AIX30078.
Full textAllouani, Rabah Nadir. "Fracturation naturelle du réservoir gréseux de Rhourde el Baguel (Algérie) et intérêt d'une inhibition assistée pour la récupération de l'huile." Toulouse 3, 1991. http://www.theses.fr/1991TOU30172.
Full textGrandgeorge, Marine. "Le lien à l'animal permet-il une récupération sociale et cognitive chez l'enfant avec autisme ?" Phd thesis, Université Rennes 2, 2010. http://tel.archives-ouvertes.fr/tel-00662840.
Full textJaubert, Jean-Noël. "Une méthode de caractérisation des coupes lourdes des fluides pétroliers applicable à la prédiction des propriétés thermodynamiques des huiles et à la récupération assistée du pétrole." Aix-Marseille 3, 1993. http://www.theses.fr/1993AIX30003.
Full textCissokho, Malick. "Etude expérimentale des interactions Huile brute/Saumure/Roche sur la récupération d'hydrocarbures par injection d'eau de faible salinité." Phd thesis, Paris, ENSAM, 2010. http://pastel.archives-ouvertes.fr/pastel-00530177.
Full textAyoub, Elie. "Caractérisation des effluents d’expérimentations EOR (Enhanced Oil Recovery) grâce à des techniques de microfluidique analytique." Thesis, Sorbonne université, 2019. http://www.theses.fr/2019SORUS017.
Full textChemical Enhanced Oil Recovery (cEOR) is one of the methods used to meet the growing demand for oil. Among these methods we can find the surfactant flooding. Surfactant flooding consists in injecting an aqueous formulation, containing surfactants, in order to obtain ultra-low interfacial tensions (typically <10-2 mN / m) between water and oil and thus mobilize the oil trapped by capillary forces in the reservoir. Generally, a salinity-scan is performed, in the laboratory, to determine the optimal salinity (S*) of the formulation which corresponds to a minimum of interfacial tension. The optimal formulation is then evaluated through a "coreflood test" which is carried out on a rock sample under conditions (Pressure and Temperature) very close to those of the reservoir. The performance of a coreflood experiment is evaluated by determining the amount of oil recovered and the amount of surfactants retained in the reservoir (by adsorption). These two parameters are of prime importance to confirm the economic viability of the cEOR process. Currently, coreflood effluents are collected in tubes throughout the experiment and the analyses are performed offline. The quantity of oil recovered is measured by volumetry (water/oil ratio in the tubes) or RMN. Surfactants are dosed in the aqueous phase by hyamine assay or by HPLC. It is noteworthy that these analyses may be difficult to carry out experimentally since the effluents may contain emulsions that are difficult to separate. Moreover, it is unclear whether all surfactants are well in the aqueous phase, or whether they are partly trapped in the oil phase. To overcome these difficulties and quantify the two important parameters of coreflood experiments, we have developed an integrated online measurement technique based on microfluidic tools. The experimental setup includes: a dilution chip to transfer the surfactants in the aqueous phase, an observation chamber to quantify the water / oil ratio of the effluent by image analysis, a membrane-based separation device, and an on-line UV-visible spectrometer for surfactants quantification. This experimental setup was successfully validated with model fluid mixtures (decane, NaCl brines and sodium dodecyl benzene sulfonate SDBS), and was evaluated on real systems (crude oil and industrial surfactant formulations). Finally, it was tested under representative conditions of coreflood experiments, being directly connected to the output of a coreflood test. The results obtained during this thesis work proved the effectiveness of the experimental setup to facilitate the quantification of the surfactants in the effluents of the coreflood experiments, and the volume of oil recovered. They showed a clear improvement compared to the quantification protocols currently applied
Al, Chami Jamal. "Développement d'une méthode d'extraction séquentielle de 36 composés phénoliques et 16 hydrocarbures aromatiques polycycliques à partir d'échantillons atmosphériques." Strasbourg, 2011. http://www.theses.fr/2011STRA6131.
Full textPolycyclic aromatic hydrocarbons (PAH) are persistent organic pollutants. They are emitted into the atmosphere by many combustion processes and they have been particularly studied due to their potential carcinogenic and/or mutagenic properties. Functionalized phenols (e. G. Chloro- and nitro-phenols) are released into the atmosphere because of their use as pesticides. They can also be emitted from diesel engines, waste incineration, coal and wood combustions. Some of them are known or suspected to be highly toxic to human health and plants. However, they are poorly studied in France. In this laboratory study, accelerated solvent extraction was used for the sequential extraction of 36 phenolic compounds and 16 PAH from spiked XAD-2 resin. The procedure is based on hot alkaline water extraction (150 °C) of polar phenolic compounds, followed by acetone-n-hexane (1:1, v/v) extraction of PAH at 105 °C. The phenolic compounds in the aqueous extract are preconcentrated onto solid-phase microextraction fiber, followed by desorption and injection-port derivatization prior to gas chromatography analysis with mass spectrometry detection. The PAH, included in the second fraction, are preconcentrated by rotary evaporator and analyzed by liquid chromatography with fluorescence detection. Optimization of the extraction method allowed achieving high recoveries: 74-109% (chlorophenols), 60-101% (nitrophenols) and 85-114% (PAH). The validated analytical procedure is fast, selective, reliable and sensitive with detection limits of 0. 03-26 ng. ML-1. Furthermore, the method is environmentally friendly, as it consumes much less harmful organic solvents compared to conventional extraction methods
Yousef, Soleiman. "Etude d'estimations d'erreur a posteriori et d'adaptivité basée sur des critères d'arrêt et raffinement de maillages pour des problèmes d'écoulements multiphasiques et thermiques. Application aux procédés de récupération assistée d'huile." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2013. http://tel.archives-ouvertes.fr/tel-00918782.
Full textYousef, Soleiman. "Etude d’estimations d’erreur a posteriori et d’adaptivité basée sur des critères d’arrêt et raffinement de maillages pour des problèmes d’écoulements multiphasiques et thermiques : Application aux procédés de récupération assistée d’huile." Paris 6, 2013. http://www.theses.fr/2013PA066616.
Full textThe goal of this thesis is the a posteriori error analysis and the conception of adaptive strategies based on stopping criteria and local mesh refinement. We treat a class of multi-dimensional degenerate parabolic equations which represent typical examples of industrial interest. The considered models are discretized by a finite volume scheme in space with the backward Euler temporal stepping. We prove un upper bound for a dual norm of the residual, augmented by a nonconformity evaluation term, by fully computable error estimators. These estimators include: an estimator associated to the linearization error, an estimator associated to the algebraic error, an estimator associated to the temporal error, and an estimator associated to the spatial error. Consequently, these estimators allow to formulate an adaptive resolution algorithm where the corresponding errors can be equilibrated. We also propose a strategy of local mesh reffinement. Finally, we prove the efficiency of our a posteriori estimates. A numerical test illustrates the efficiency of our estimates and the performance of the adaptive algorithm. In particular, a significant gain in terms of the number of mesh cells, the total number of the iterations of the linearization method, and the total number of algebraic solver iterations is achieved on several real-life reservoir engineering examples
Schneider, Marc. "Mouillabilité texturée dans les systèmes micro fluidiques et applications dans l'industrie pétrolière." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2011. http://pastel.archives-ouvertes.fr/pastel-00568996.
Full textDuboin, Aurélien. "Écoulements de fluides complexes en présence d'interfaces dans des systèmes microfluidiques." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2013. http://pastel.archives-ouvertes.fr/pastel-00831518.
Full textNikoosokhan, Saeid. "Stockage géologique du dioxyde de carbone dans les veines de charbon : du matériau au réservoir." Phd thesis, Université Paris-Est, 2012. http://pastel.archives-ouvertes.fr/pastel-00787962.
Full textLagree, Bertrand. "Modelling of two-phase flow in porous media with volume-of-fluid method." Thesis, Paris 6, 2014. http://www.theses.fr/2014PA066199/document.
Full textUnderstanding multiphase flow in porous media is of tremendous importance for many industrial and environmental applications at various spatial and temporal scales. The present study consequently focuses on modelling multiphase flows by the Volume-of-Fluid method in porous media and shows simulations of Saffman-Taylor fingering motivated by the analysis of waterflooding experiments of extra-heavy oils in quasi-2D square slab geometries of Bentheimer sandstone. The Gerris code which allows efficient parallel computations with octree mesh refinement is used. It is tested for accuracy and computational speed using several levels of refinement and comparing to reference simulations in the literature. Simulations of real rocks are realised in three dimensions with very promising results. Though it is not yet possible to attain realistic capillary numbers, it is possible to simulate flows in domains of physical size up to 1 mm3 in reasonable CPU time. 2D simulations of viscous fingering with both central and lateral injection are also presented in this study, based on Darcy's law. The fractal aspect of this fingering is studied by considering both its fractal dimension and the variation of the area of the resulting pattern with respect to its arclength. Finally, polymer flooding following waterflooding in a two-step process is simulated with Darcy modelling
Barthet, Cécile. "Effect of the microstructure on the physico-chemical properties of multiblock associative polymers synthesized via RAFT/MADIX micellar polymerization." Thesis, Toulouse 3, 2017. http://www.theses.fr/2017TOU30385.
Full textSince the middle of the 20th century, enhanced oil recovery (EOR) techniques have been used to improve the extraction of crude oil. Hydrophobically modified polyacrylamides have shown great properties as rheology modifiers for EOR purposes. However, the synthesis of water-soluble polymers containing hydrophobic segments along the backbone is challenging as hydrophilic and hydrophobic monomers are rarely soluble in the same solvent. The aim of this project was to develop acrylamide-based copolymers for enhanced oil recovery (EOR). In this process, long chain polymer molecules are mixed with water and injected into the oil field in order to drive the oil out of the well. The polymer serves to increase the viscosity of the water, making it more effective at displacing the oil. In this thesis, RAFT/MADIX technique has been combined with micellar polymerization in order to synthesize new associative copolymers with controlled architectures and numerous hydrophobic blocks distributed along the backbone. The associations generate a viscoelastic network in aqueous media resulting in a viscosity increase. The combination of RAFT/MADIX with micellar polymerization allows us to limit the compositional drift observed in conventional micellar polymerization. First, the study of the effect of monomers and salts on the behavior of surfactant micelles has shown that the influence of NaAMPS dominates that of acrylamide in its effect on the micellization behavior of SDS. This study has proven that it is possible to predict how NH would vary depending on the composition of the reactive medium during the synthesis. Understanding the surfactant-monomer interactions thus enables prediction of the microstructure of the polymer. In a second step, it has been demonstrated that the associative polymeric chains were living chains and could be further extended to high molar masses with acrylamide. Increasing the content of NaAMPS in the hydrophilic backbone led to a significant increase in the reactivity ratio. The addition of monovalent salt (especially NaCl) is a useful tool to control the polymer microstructure, enabling switching between a gradient-type composition and a more homogeneous one (rhydrophilic monomers/tBS close to 1). Finally, the examination of structure-property relationships of the associative polymers has highlighted that all polymers displayed associating properties as well as enhanced viscosity compared to homopolyacrylamide. The polymer viscosity strongly decreased upon incorporation of NaAMPS within the backbone while it was unaffected by the presence of NaCl during the synthesis. The polymer displaying the best properties for use in EOR is P(Am90-co-AMPS10-co-(Am/NaCl)10-co-tBS1). The use of NaCl ensures good rheological properties while AMPS enhances the solubility of the copolymer
Maunier, Christine. "Développement d'un outil numérique d'aide à l'étude et à la conception de procédés d'injection d'eaux additivées : application à la récupération tertiaire du pétrole." Vandoeuvre-les-Nancy, INPL, 1996. http://www.theses.fr/1996INPL132N.
Full textHauner, Ines Margret. "Interfacial water dynamics." Thesis, Paris 6, 2017. http://www.theses.fr/2017PA066145/document.
Full textWater is the most abundant molecule on earth, indispensable for a plethora of chemical reactions and vital to the functioning of most living organisms. Interfacial water is particularly interesting to study as its physicochemical properties deviate significantly from the bulk whilst being of crucial importance to both fundamental research and industrial process design. In this thesis we study the interfacial water dynamics of three highly relevant phenomena by primarily recurring on microfluidics and ultrarapid imaging approaches. The first part focusses on proton diffusion in complex aqueous environments such as the the cytoplasm which remains a central issue in the biowater controversy. We evaluate and discuss the relevance of different proton diffusion mechanisms in cellular mimic solutions. The second part of this thesis is centred around droplet formation dynamics which are not only omnipresent in nature and technology, but also constitute a very rich phenomenon involving finite time singularities. We evaluate the outstanding pinch-off behaviour of water and aqueous solutions at the water/air interface that significantly deviates from other comparable non-viscous liquids on the millisecond time scale. In the last part we study a three phase system consisting of water and oil embedded in different ‘rough’ microstructures. Surface topology is identified as important determinant for the relative wettability behaviour of oil and water which constitutes a key finding for the development of efficient and environmentally compatible enhanced oil recovery strategies
El-Tayeb, El-Sayed Mohamed. "Rétention d'alpha-oléfinésulfonates de sodium dans un sable argilo-calcaire : étude expérimentale et modélisation du transport en présence de cations divalents et d'asphalte." Vandoeuvre-les-Nancy, INPL, 1994. http://www.theses.fr/1994INPL149N.
Full textGuetni, Imane. "Transport of polymer solutions in controlled low permeability porous media of various mineralogies." Electronic Thesis or Diss., Université de Lorraine, 2019. http://www.theses.fr/2019LORR0184.
Full textChemical Enhanced Oil Recovery (EOR) is considered as an attractive option for low permeability reservoirs, in particular where lack of gas supply does not allow gas injection processes. However, its application can be challenging for permeabilities below 100mD, as poor injectivity and high chemical retention are frequently observed in these cases. This work aimed at investigating the impact of both chemical and mineralogical parameters on the transport of polymer solutions in well-controlled low permeability porous media. For that, polymer injection tests were carried out using HPAM solutions of different ionic strengths and hardnesses and four granular sand-clay packs using quartz and three types of clays: kaolinite, illite and smectite. Results confirm the major role played by the injection water composition (salinity and hardness) on polymer conformation and on polymer-minerals interactions. Strong interactions between polymer and clay are evidenced with significant differences according to the clay type: good propagation and high polymer retention in an uncharged and non-swelling clay (kaolinite) and poor propagation with lower retention than expected in charged or swelling clays (illite, smectite). These outcomes stand as new elements for understanding the transport of polymer solutions in low permeability sandstone reservoirs
Abadpour, Anahita. "Analyse asymptotique du problème de Riemann pour les écoulements compositionnels polyphasiques en milieux poreux et applications aux réservoirs souterrains." Thesis, Vandoeuvre-les-Nancy, INPL, 2008. http://www.theses.fr/2008INPL098N/document.
Full textIn the first part of thesis we deal with two-phase multicomponent, partially miscible, compressible flow in porous media. Displacement of one phase by another is analyzed. We examine non ideal solutions, pressure is variable, and phase compositions, densities and viscosities are variable functions of pressure.The process is described by Riemann problem which admits discontinuous solutions.We developed a numerical-analytical method of solution to explicitly determine all shock parameters before solving the flow equations. This method is based on splitting thermodynamics and hydrodynamics, suggested in [Oladyshkin, Panfilov 2006]. Earlier this method was inapplicable to Riemann problem, due to the lack of Hugoniot conditions. In this thesis we have constructed additional Hugoniot conditions.In the second part we examine two-phase flow when the single-phase zones appear, in this zone the fluid is over/under-saturated and two-phase flow equations degenerate and they cannot be used. We proposed to describe two-phase and over/under-saturated single-phase zones by uniform system of classic two-phase equations while extending the concept of phase saturation to be negative and higher than one. Physically it means that the oversaturated single-phase states are considered as pseudo two-phase states consisting an imaginary phase with negative saturation. Such an extension of saturation requires developing some consistence conditions which have developed in this thesis.The last part then is devoted to extend the HT-split model to the case of three-phase compositional flow. We have obtained the general asymptotic model, in which the thermodynamics and hydrodynamics are split
Nghe, Philippe. "Ecoulements de fluides complexes en géométries microfluidiques." Phd thesis, Université Pierre et Marie Curie - Paris VI, 2009. http://pastel.archives-ouvertes.fr/pastel-00005605.
Full textSoukarieh, Banan. "Monitoring des HAPs et des PCBs dans le sol et les sédiments au Liban. Implantation d'une méthode optimisée et validée d'extraction et d'analyse." Thesis, Bordeaux, 2018. http://www.theses.fr/2018BORD0357.
Full textCurrently, the public and especially in industrialized countries is increasingly aware that environmental degradation can outweigh the benefits of rapid progress in the industrial and technological fields and that serious and irreversible damage can be imposed on the future generations. The occurrence of POPs in the environment, which results mainly from anthropogenic activities, is one of the permanent concerns of scientists. These compounds have been found in all environmental matrices such as air, soil, water and sediments and because of their lipophilic properties, they are likely to rebound in the human food chain. During the past decade, Lebanon has experienced a large population explosion that has been accompanied by various anthropogenic activities. The degradation of the quality of the environment is felt by the local population and the consequences for human health are heavy and horrendous. The work of this thesis allowed to evaluate concretely the effect of POPs on the quality of the environment in Lebanon, this work led to the determination of the levels of some POPs most widely studied such as PAHs, PCBs and OCPs in the different environmental compartments in Lebanon. To this end, analytical protocols including a GC/MS method for the separation and detection of PAHs, a UAE method for the extraction of PAHs from soil and sediments and an SPE method for the extraction of PAHs from water were developed. These methods were then applied to evaluate the levels of 17 PAHs in soils of different uses and study the distribution of PAHs in the aqueous phase and sediments on the Lebanese coasts and in coastal and inner rivers. The main results showed that soil contamination levels by PAHs decreased in the following order: industrial, urban, transport and agricultural and that industrial and urban soils were 777 and 256 times more toxic than rural reference soils according to the TEF approach. In addition, water and sediments from coastal sites affected by industry and shipping have shown higher contamination by PAHs. Some sediment samples showed concentrations of a few individual PAHs greater than the ERL, which could occasionally cause negative ecological effects. The work of this thesis also includes the determination of levels of PCBs and OCPs in the sediments of the Litani River which is a source of great environmental concern currently in Lebanon
Dufour, Alizée. "Caractérisation des tensioactifs polydisperses industriels par spectrométrie de masse et chromatographie en phase liquide." Thesis, Université Paris sciences et lettres, 2020. http://www.theses.fr/2020UPSLS019.
Full textIIn the petroleum industry, surfactant formulation is becoming more and more complex, especially in thecase of Enhanced Oil Recovery. Analytical challenges therefore appear when monitoring these surfactants.After a detailed characterisation using high resolution mass spectrometry (HRMS), a preliminary studyallowed a better understanding of the chomatographic behaviours of surfactants on different stationnaryphases. A screening of nine different columns showed that LC-1D separation did not result in a completeseparation due to the range of polarities and the polydispersity of the compounds. However, thedevelopment of a multi-dimensional approach solved the co-eluting observed in LC-1D. Following this proofof concept, the determination of the response factor, using charged aerosol detection, underlined the lackof a uniform response within a distribution. This has a strong impact on the mass balance. Finally, theinfluence of the presence of oil was demonstrated by studying a mixture of anionic and nonionic surfactantsin oil matrix. The separation was maintained but the presence of organic solvent and crude oil has a crucialimpact on the signal
Lupinetti, Katia. "Identification of shape and structural characteristics in assembly models for retrieval applications." Thesis, Paris, ENSAM, 2018. http://www.theses.fr/2018ENAM0003/document.
Full textThe large use of CAD systems in many industrial fields, such as automotive, naval, and aerospace, has generated a number of 3D databases making available a lot of 3D digital models. Within enterprises, which make use of these technologies, it is common practice to access to CAD models of previously developed products. In fact, designing new products often refers to existing models since similar products allow knowing in advance common problems and related solutions. Therefore, it is useful to have technological solutions that are able to evaluate the similarities of different products in such a way that the user can retrieve existing models and thus have access to the associated useful information for the new design.The concept of similarity has been widely studied in literature and it is well known that two objects can be similar under different perspectives. These multiple possibilities make complicate the assessment of the similarity between two objects. So far, many methods are proposed for the recognition of different parts similarities, but few researches address this problem for assembly models. If evaluating the similarity between two parts may be done under different perspectives, considering assemblies, the viewpoints increase considerably since there are more elements playing a meaningful role.Based on these requirements, we propose a system for retrieving similar assemblies according to different similarity criteria. To achieve this goal, it is necessary having an assembly description including all the information required for the characterizations of the possible different similarity criteria between the two assemblies. Therefore, one of the main topics of this work is the definition of a descriptor capable of encoding the data needed for the evaluation of similarity adaptable to different objectives. In addition, some of the information included in the descriptor may be available in CAD models, while other has to be extracted appropriately. Therefore, algorithms are proposed for extracting the necessary information to fill out the descriptor elements. Finally, for the evaluation of assembly similarity, several measures are defined, each of them evaluating a specific aspect of their similarity
Villalba-Mahmoudi, Marlène. "Influence de la composition chimique des huiles sur leur transformation au cours du craquage thermique : étude expérimentale et application à la combustion in situ." Paris 6, 1988. http://www.theses.fr/1988PA066590.
Full textMertz, Théophile. "Optimisation simultanée de la configuration et du dimensionnement des réseaux de chaleur urbains." Thesis, Pau, 2016. http://www.theses.fr/2016PAUU3019/document.
Full textThe aim of this thesis is to develop a method that provides design assistance for District Heating Network (DHN). This tool allows simultaneously the optimization of the configuration and its sizing, thanks to an MINLP formulation (Mixed Integer Non-Linear Programming). Binary variables help to choose the optimal configuration (network layout and technologies of production), whereas continuous variables help DHN sizing (temperature, diameter, velocity, heat exchanger area, thermal generating capacity …). The objective function to minimize is the total cost (capex and opex), subjected to numerous nonlinear constraints (e.g. thermal losses, pressure drop, energy balance).This method enables to design temperature cascade between consumers, when consumer temperature requirements are different, and also looped network (only one pipe in one trench). It helps also the decision to connect (or not) consumers to the main network and also the location(s) and type(s) of the heating plant. Moreover, the arbitrage between heat losses and pressure drops is taken into account thanks to physical considerations (non-linear equations). Eventually, it is possible to design 4th generation DHN and prove their financial profitability over the long terms (30 years). First a multi-step resolution strategy is proposed to ensure finding global optimum of the complex MINLP problem. Then academic study cases are analyzed to underline the numerous assets of the formulation. Finally, the optimal design compared to an existing DHN ensures the consistency of the method and allows to build a study case at a wider scale, which can be solved thanks to the comprehensive strategy developed. The design assistance method is available for initial design as well as for extension of existing DHN