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The Development Of Pore Scale Network Models For The Simulation Of Capillary Pressure Saturation Interfacial Area Relative Permeability Relationships In Multi Fluid Porous Media
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Book Synopsis The Development of Pore-scale Network Models for the Simulation of Capillary Pressure-saturation-interfacial Area-relative Permeability Relationships in Multi-fluid Porous Media by : Paul Charles Reeves
Download or read book The Development of Pore-scale Network Models for the Simulation of Capillary Pressure-saturation-interfacial Area-relative Permeability Relationships in Multi-fluid Porous Media written by Paul Charles Reeves and published by . This book was released on 1997 with total page 1132 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Investigating Capillary Pressure and Interfacial Area for Multiphase Flow in Porous Media Using Pore-scale Imaging and Lattice-Boltzmann Modeling by : Mark L. Porter
Download or read book Investigating Capillary Pressure and Interfacial Area for Multiphase Flow in Porous Media Using Pore-scale Imaging and Lattice-Boltzmann Modeling written by Mark L. Porter and published by . This book was released on 2009 with total page 254 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent advances in imaging technology and numerical modeling have greatly enhanced pore-scale investigations of multiphase flow and transport in porous media. It is now feasible to obtain high resolution 3-dimensional pore-scale data, and numerical methods such as the lattice- Boltzmann (LB) technique have been developed specifically for simulating such phenomena. Traditional macro-scale multiphase flow models rely heavily on empirical relationships. For example, the interaction between fluids at their interfaces is accounted for indirectly through the empirical relative permeability relationship. Nevertheless, it has recently been hypothesized that the single most important variable missing from current macro-scale models is the measure of interfacial dynamics between fluids within the pores. Furthermore, the empirical capillary pressure-saturation relationship used in macro-scale multiphase flow simulators has been shown to be a function of interfacial area per volume. This study focuses on (1) the measurement and modeling of the capillary pressure-saturation relationship; and (2) the characterization of the fluid-fluid interfacial area per volume as a function of saturation. The study synthesizes experimental results derived from pore-scale computerized micro-tomographic (CMT) images with LB simulations. An image analysis algorithm for quantifying fluid-fluid interfacial area per volume from experimental CMT and simulation images was developed and verified. The experimental results were shown to be in good agreement with values reported in the literature. Furthermore, the capillary ressure-saturation curves were used to validate a recently proposed macro-scale interfacial area model. New LB simulations of drainage and imbibition for an air-water system were developed, in which the full geometry from the experimental system was used to define the lattice. This allowed for the direct comparison of experimental and simulated phase distributions within the pores. LB simulations showed excellent agreement with experimental results, considering no optimization or calibration to the data was required. Collectively, results show that there is a complex functional relationship between capillary pressure, saturation and interfacial area that provides insights into multiphase flow and transport processes that can not be obtained from the capillary pressure-saturation relationship alone.
Book Synopsis Groundwater Quality by : Karel Kovar
Download or read book Groundwater Quality written by Karel Kovar and published by IAHS Press. This book was released on 1998 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pore Scale Network Modeling Approach by : Abbas Khaksar Manshad
Download or read book Pore Scale Network Modeling Approach written by Abbas Khaksar Manshad and published by LAP Lambert Academic Publishing. This book was released on 2013 with total page 100 pages. Available in PDF, EPUB and Kindle. Book excerpt: The architecture and geometry of the void space of a porous medium and its complementary grain matrix determine several macroscopic properties of the rock such as porosity, relative permeability and capillary pressure. Therefore, it is important to study the microscopic structure of the reservoir pores and understand the physical fluid displacements through them. One approach to this problem is pore-scale modeling that requires a detailed understanding of the physical processes occurring on the pore scale and a complete description of the morphology of the pore space. The pore scale network is a representation of the void space of the reservoir rock. Wide voids of the reservoir rocks are represented by the pore bodies which are interconnected by narrow spaces called pore throats. The key results of the network model are the ability to predict the trend in relative permeability, capillary curves, fractional flows and residual saturations with capillary number and viscosity ratio and to reproduce the displacement patterns.
Book Synopsis Multiphase Flow in Permeable Media by : Martin J. Blunt
Download or read book Multiphase Flow in Permeable Media written by Martin J. Blunt and published by Cambridge University Press. This book was released on 2017-02-16 with total page 503 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a fundamental description of multiphase fluid flow through porous rock, based on understanding movement at the pore, or microscopic, scale.
Book Synopsis Unconventional Reservoir Geomechanics by : Mark D. Zoback
Download or read book Unconventional Reservoir Geomechanics written by Mark D. Zoback and published by Cambridge University Press. This book was released on 2019-05-16 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview of the key geologic, geomechanical and engineering principles that govern the development of unconventional oil and gas reservoirs. Covering hydrocarbon-bearing formations, horizontal drilling, reservoir seismology and environmental impacts, this is an invaluable resource for geologists, geophysicists and reservoir engineers.
Book Synopsis Dissertation Abstracts International by :
Download or read book Dissertation Abstracts International written by and published by . This book was released on 1998 with total page 950 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Characterization and Measurement of the Hydraulic Properties of Unsaturated Porous Media by : M. Th Van Genuchten
Download or read book Characterization and Measurement of the Hydraulic Properties of Unsaturated Porous Media written by M. Th Van Genuchten and published by . This book was released on 1999 with total page 844 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Pore-scale Network Modeling of Two-and Three-phase Flow Based on Thermodynamically Consistent Threshold Capillary Pressures by : Arsalan Zolfaghari Shahrak
Download or read book Pore-scale Network Modeling of Two-and Three-phase Flow Based on Thermodynamically Consistent Threshold Capillary Pressures written by Arsalan Zolfaghari Shahrak and published by . This book was released on 2014 with total page 257 pages. Available in PDF, EPUB and Kindle. Book excerpt: A pore-scale network model is developed to simulate formation and collapse of wetting and spreading oil layers in two- and three-phase flow systems. We focus mainly on oil layers and their connectivity at low oil saturations particularly in three-phase flow processes. A new configuration, i.e., cusp phase location, has been introduced to address connectivity and conductivity of the oil phase in non-spreading three-phase systems. Helmholtz free energy balance and Mayer-Stowe-Princen (MS-P) method are used to find threshold capillary pressures of two- and three-phase pore-scale displacements. Minimization of Helmholtz free energy for each relevant displacement enables the model to accurately determine the most favorable displacement, and hence, improve its predictive capabilities particularly for relative permeabilities, capillary pressures, and residual saturations for a given set of fluid and rock properties and saturation path trajectory. Multiple phases can reside in each pore (i.e., in corners, center, layers, and cusp phase locations). Different layer collapse displacement mechanisms, i.e., based on MS-P analysis or geometrical criteria, are implemented in the model. We have introduced four different layer collapse policies for oil or gas. The model is rigorously validated against three sets of experimental data to test its predictive capabilities with different porous mediums and fluid systems. All three-phase equilibrium interfacial tensions used for the prediction of three-phase experimental data were measured and used in model validation. The results indicate that the previously-used geometrical criterion for the collapse of oil layers yields lower residual oil saturations than the experimentally measured values in both two- and three-phase systems. Incorporation of the MS-P method and cusp analysis significantly enhances the agreement with experimental data. The validated model is then used to study the effects of wettability, saturation history, spreading coefficient, and initial oil saturation on three-phase oil, gas, and water relative permeabilities and residual oil saturation.
Book Synopsis Advances in Multi-scale Multi-physics Geophysical Modelling and Fluid Transport in Unconventional Oil and Gas Reservoir by : Wenhui Song
Download or read book Advances in Multi-scale Multi-physics Geophysical Modelling and Fluid Transport in Unconventional Oil and Gas Reservoir written by Wenhui Song and published by Frontiers Media SA. This book was released on 2022-08-12 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Environmental Hydrogeology by : Philip E. LaMoreaux
Download or read book Environmental Hydrogeology written by Philip E. LaMoreaux and published by CRC Press. This book was released on 2008-10-21 with total page 382 pages. Available in PDF, EPUB and Kindle. Book excerpt: Headlines continue to blare news of climate change, tangential catastrophic events, and dwindling energy resources. Written by respected practitioners, and geared to practitioners and students, Environmental Hydrogeology, Second Edition explores the role that hydrogeology can play in solving challenging environmental problems. New in the Second Edi
Book Synopsis Pore Scale Modeling of Multiphase Flow in Heterogeneously Wet Media by : Rahul Verma (Ph. D. in petroleum engineering)
Download or read book Pore Scale Modeling of Multiphase Flow in Heterogeneously Wet Media written by Rahul Verma (Ph. D. in petroleum engineering) and published by . This book was released on 2018 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt: Pore scale simulation has recently become an important tool for understanding multiphase flow behavior in porous materials. It enables detailed mechanistic studies of upscaled flow parameters such as capillary-pressure saturation curves, residual saturation of each phase, and relative permeability. However, direct modeling of multiphase flow given the complex solid surfaces in a porous medium is a non-trivial problem. In this work, we develop a new quasi-static, variational level set formulation capable of handling trapped phases as well as wettability. We extend our previous work [1, 2] for simple geometries, and develop a new parallelized code enabling application of the method in larger geometries. We compare our model results against several experimental and semi-analytical datasets. The model is first applied to both homogeneous and heterogeneously wet rhomboidal pores, and compared against semi-analytical solutions derived by Mason and Morrow [3]. Subsequently, we focus on a quasi-2D micromodel study of fluid-fluid displacement for different wettabilities, which is quantified using the displacement efficiency and fractal dimension of the displacement patterns [4]. We then study classic experiments by Haines [5] and Leverett [6] for measuring the capillary pressure and relative permeability curves in sphere packs and sandpacks, respectively. We match trends in trapping in sandpacks during drainage/imbibition experiments by Pentland et al. [7], and also compare it against predictions by several other pore-scale models. Finally, we confirm the pore-scale hypothesis suggested by DiCarlo et al. [8] for explaining experimental observations of three-phase relative permeability of the intermediate-wet phase in sandpack experiments. For these three-phase experiments, we propose an approximation based on finding phases trapped between constant curvature surfaces, using two-phase simulations. We demonstrate the versatility of our methods by applying it to these disparate experimental datasets, and suggest future applications of our work.
Book Synopsis Petrophysical Characterization and Fluids Transport in Unconventional Reservoirs by : Jianchao Cai
Download or read book Petrophysical Characterization and Fluids Transport in Unconventional Reservoirs written by Jianchao Cai and published by Elsevier. This book was released on 2019-01-24 with total page 354 pages. Available in PDF, EPUB and Kindle. Book excerpt: Petrophysical Characterization and Fluids Transport in Unconventional Reservoirs presents a comprehensive look at these new methods and technologies for the petrophysical characterization of unconventional reservoirs, including recent theoretical advances and modeling on fluids transport in unconventional reservoirs. The book is a valuable tool for geoscientists and engineers working in academia and industry. Many novel technologies and approaches, including petrophysics, multi-scale modelling, rock reconstruction and upscaling approaches are discussed, along with the challenge of the development of unconventional reservoirs and the mechanism of multi-phase/multi-scale flow and transport in these structures. - Includes both practical and theoretical research for the characterization of unconventional reservoirs - Covers the basic approaches and mechanisms for enhanced recovery techniques in unconventional reservoirs - Presents the latest research in the fluid transport processes in unconventional reservoirs
Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1997 with total page 816 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Relative Permeability Of Petroleum Reservoirs by : M.M. Honarpour
Download or read book Relative Permeability Of Petroleum Reservoirs written by M.M. Honarpour and published by CRC Press. This book was released on 2018-01-18 with total page 243 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book enables petroleum reservoir engineers to predict the flow of fluids within a hydrocarbon deposit. Laboratory techniques are described for both steady-state and unsteady state measurements, and the calculation of relative permeability from field data is illustrated. A discussion of techniques for determing wettability is included, along with theoretical and empirical methods for the calculation of relative permeability, and prediction techniques. Contents include: Measurement of Rock Relative Permeability; Two-Phase Relative Permeability; Factors Affecting Two-Phase Relative Permeability; Three-Phase Relative Permeability; and Index.
Book Synopsis Modelling Multiphase Flow Through Micro-CT Images of the Pore Space by : Ali Qaseminejad Raeini
Download or read book Modelling Multiphase Flow Through Micro-CT Images of the Pore Space written by Ali Qaseminejad Raeini and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: We present a numerical method for modelling two-phase flow through porous media directly at the pore scale. The volume of fluid method is used to capture the interface motion. The volume of fluid equation and the incompressible Navier-Stokes equations are discretised by the finite volume method using a single fluid methodology, with a discontinuity in the phase properties. Capillary forces are calculated using a new semi-sharp formulation and filtered, to allow for simulations at low capillary numbers and avoid non-physical velocities. They are applied into the Navier-Stokes equations using a semi-implicit formulation, which allows larger time steps at low capillary numbers. The numerical method is verified on several test cases, demonstrating its efficiency, stability and accuracy in modelling multiphase flow through porous media with complex interface motion and irregular solid boundaries. We present two-phase flow simulations on simple pore geometries and study the mechanisms controlling two-phase flow at the pore scale. Particularly, we study the effect of geometry and flow rate on trapping and mobilization of the non-wetting-phase. We introduce a new concept to upscale the subpore-scale forces and find the relations between the flow and the pore-scale pressure drops. These information can be used as input to pore-network models. As an example, we applied this concept to predict the threshold capillary number to prevent trapping during imbibition. Furthermore, we present two-phase flow simulations on two micro-CT images of porous media and show the effect of capillary number on the flow pattern, the trapped non-wetting phase saturation and blob sizes. We present a rigorous approach to relate the pore-scale forces controlling the flow to the Darcy-scale parameters and use it to obtain relative permeability curves. Overall, this thesis provides a methodology for a detailed pore-scale analysis of multiphase flow, serving as a rigorous foundation for large-scale modelling and prediction.
Book Synopsis American Doctoral Dissertations by :
Download or read book American Doctoral Dissertations written by and published by . This book was released on 1997 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt:
