Download or read book Pore scale Modeling of Particle Filtration in Porous Media written by Hongtao Yang (Ph. D.) and published by . This book was released on 2018 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Particle retention in porous media occurs in many natural and environmental settings, such as waste-water purification, contaminants dispersion, fines migration and more. In petroleum engineering, particle retention (e.g. drilling mud invasion, produced water re-injection, polymer retention) will induce permeability decline and formation damage. Existing macroscopic models often fail to be predictive without empirical adjustments. A predictive micro-scale model of particle filtration is of great significance to the control of formation damage and to the economical exploitation of hydrocarbon reservoirs. In this work, a Lagrangian pore network model has been developed for particle deposition. The model tracks the transport trajectory of each individual particle in porous media. It is able to capture the complex particle-surface interaction during deposition and has been validated against published experimental data. A new gravity number is developed to better scale the filtration coefficient. The particle size distribution is found to be one of the causes of hyperexponential deposition. The permeability decline not only depends on the volume of deposited particles, but also on the surface charge. In addition, an Eulerian pore network model has been developed for particle jamming in porous media. The probabilistic nature of jamming has been systematically studied using a Discrete Element Method (DEM). Based on the DEM simulations, a unified model for the jamming probability has been created, which is able to predict the effect of friction, pore/particle size ratio, and particle concentration on jamming. The numerical results achieved good agreement with direct CFD-DEM and particle flooding experiments. We then combine the Eulerian model with a deposition model to predict polymer adsorption and mechanical entrapment in porous media. The hydraulic conductivity of a fouled cylindrical tube is updated using models that are created based on CFD simulations. It is found that the longitudinal dispersivity is larger breakthrough curve broader than a Newtonian fluid for a power-law fluid with constant rheological properties. However, if the power-law parameters are functions of polymer concentration, the breakthrough curve is narrower than a Newtonian fluid because fluid is concentrated and thus more viscous in the fast flow paths. For particle retention, fluids with a high shear-thinning index result in more permeability reduction. For Bingham plastic fluids with concentration independent rheological properties, breakthrough occurs earlier as yield stress increases because the number of the dead-end or isolated pores increases. Compared with a Newtonian fluid, flow of a Bingham plastic fluid results in less jamming because particles are unable to enter the smaller pore throats that are closed to flow.
Download or read book Coupled Pore to continuum Multiscale Modeling of Dynamic Particle Filtration Processes in Porous Media written by Jack Blears and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Colloidal Transport in Porous Media written by Fritz H. Frimmel and published by Springer Science & Business Media. This book was released on 2007-05-26 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers the basics of abiotic colloid characterization, of biocolloids and biofilms, the resulting transport phenomena and their engineering aspects. The contributors comprise an international group of leading specialists devoted to colloidal sciences. The contributions include theoretical considerations, results from model experiments, and field studies. The information provided here will benefit students and scientists interested in the analytical, chemical, microbiological, geological and hydrological aspects of material transport in aquatic systems and soils.
Download or read book Pore Scale Modeling of Porous Media a Review written by D.D. Steele and published by . This book was released on 1989 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Pore scale Microstructure Mechanisms and Models for Subsurface Flow and Transport written by James E. McClure and published by Frontiers Media SA. This book was released on 2022-11-29 with total page 164 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Particulate Flows written by Donald A. Drew and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: This IMA Volume in Mathematics and its Applications PARTICULATE FLOWS: PROCESSING AND RHEOLOGY is based on the proceedings of a very successful one-week workshop with the same title, which was an integral part of the 1995-1996 IMA program on "Mathematical Methods in Materials Science." We would like to thank Donald A. Drew, Daniel D. Joseph, and Stephen L. Passman for their excellent work as organizers of the meeting. We also take this opportunity to thank the National Science Foun dation (NSF), the Army Research Office (ARO) and the Office of Naval Research (ONR), whose financial support made the workshop possible. A vner Friedman Robert Gulliver v PREFACE The workshop on Particulate Flows: Processing and Rheology was held January 8-12, 1996 at the Institute for Mathematics and its Applications on the University of Minnesota Twin Cities campus as part of the 1995- 96 Program on Mathematical Methods in Materials Science. There were about forty participants, and some lively discussions, in spite of the fact that bad weather on the east coast kept some participants from attending, and caused scheduling changes throughout the workshop. Heterogeneous materials can behave strangely, even in simple flow sit uations. For example, a mixture of solid particles in a liquid can exhibit behavior that seems solid-like or fluid-like, and attempting to measure the "viscosity" of such a mixture leads to contradictions and "unrepeatable" experiments. Even so, such materials are commonly used in manufacturing and processing.
Download or read book Simulation of Flow and Transport at the Micro Pore Scale written by and published by . This book was released on 2007 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt: An important problem in porous media involves the ability of micron and submicron-sized biological particles such as viruses or bacteria to move in groundwater systems through geologic media characterized by rock or mixed gravel, clay and sand materials. Current simulation capabilities require properly upscaled (continuum) models of colloidal filtration and adsorption to augment existing theories of fluid flow and chemical transport. Practical models typically address flow and transport behavior in aquifers over distances of 1 to 10 km where, for example, fluid momentum balance is governed by the simple Darcy's Law as a function of a pressure gradient, elevation gradient and a medium-dependent permeability parameter. In addition to fluid advection, there are multiple transport processes occurring in these systems including diffusion, dispersion and chemical interactions with solids or other aqueous chemical species. Particle transport is typically modeled in the same way as dissolved species, except that additional loss terms are incorporated to model particle filtration (physical interception), adsorption (chemical interception) and inactivation. Proper resolution of these processes at the porous medium continuum scale constitutes an important closure problem in subsurface science. We present a new simulation capability based on enabling technologies developed for microfluidics applications to model transport of colloidal-sized particles at the microscale, with relevance to the pore scale in geophysical subsurface systems. Particulate is represented by a bead-rod polymer model and is fully-coupled to a Newtonian solvent described by Navier-Stokes. Finite differences are used to discretize the interior of the domain; a Cartesian grid embedded boundary/volume-of-fluid method is used near boundaries and interfaces. This approach to complex geometry is amenable to direct simulation on grids obtained from surface extractions of tomographic image data. Short-range interactions are included in the particle model. This capability has been previously demonstrated on polymer flow in spatially-resolved packed bed (3D) and post array (2D) systems. We also discuss the advantages of this approach for the development of high-resolution adaptive algorithms for multiscale continuum-particle and mesoscale coarse-grained molecular dynamics models.
Download or read book Particle Transport in Flow Through Porous Media written by Russell Edgar Mau and published by . This book was released on 1992 with total page 302 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Models in Geomechanics written by G.N. Pande and published by CRC Press. This book was released on 2004-08-15 with total page 760 pages. Available in PDF, EPUB and Kindle. Book excerpt: Reflecting the current research and advances made in the application of numerical methods in geotechnical engineering, this volume details proceedings of the Ninth International Symposium on 'Numerical Models in Geomechanics - NUMOG IX' held in Ottawa, Canada, 25-27 August 2004. Highlighting a number of new developments in the area, papers concentrate upon the following four main areas: * constitutive relations for geomaterials * numerical algorithms: formulation and performance * modelling of transient, coupled and dynamic problems * application of numerical techniques to practical problems. Representing the most advanced, modern findings in the field, Numerical Models in Geomechanics is a comprehensive and impeccably-researched text, ideal for students and researchers as well as practising engineers.
Download or read book Pore scale Modeling of Nonwhetting phase Residual in Porous Media written by Michael I. Lowry and published by . This book was released on 1993 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Unconventional Reservoirs written by Reza Rezaee and published by MDPI. This book was released on 2020-04-16 with total page 522 pages. Available in PDF, EPUB and Kindle. Book excerpt: The need for energy is increasing and but the production from conventional reservoirs is declining quickly. This requires an economically and technically feasible source of energy for the coming years. Among some alternative future energy solutions, the most reasonable source is from unconventional reservoirs. As the name “unconventional” implies, different and challenging approaches are required to characterize and develop these resources. This Special Issue covers some of the technical challenges for developing unconventional energy sources from shale gas/oil, tight gas sand, and coalbed methane.
Download or read book Pore scale Modeling of Two phase Flow and Mass Transfer in Porous Media written by Rudolf Josef Held and published by . This book was released on 2000 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Handbook of Porous Media written by Kambiz Vafai and published by CRC Press. This book was released on 2015-06-23 with total page 946 pages. Available in PDF, EPUB and Kindle. Book excerpt: Handbook of Porous Media, Third Edition offers a comprehensive overview of the latest theories on flow, transport, and heat-exchange processes in porous media. It also details sophisticated porous media models which can be used to improve the accuracy of modeling in a variety of practical applications. Featuring contributions from leading experts i
Download or read book Computation and Applied Mathematics written by and published by . This book was released on 2005 with total page 192 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Transverse Dispersion in Liquid Flow Through Porous Media written by Eugene Sidney Simpson and published by . This book was released on 1962 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Nanomaterials for the Detection and Removal of Wastewater Pollutants written by Barbara Bonelli and published by Elsevier. This book was released on 2020-06-12 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials for the Detection and Removal of Wastewater Pollutants assesses the role of nanotechnology and nanomaterials in improving both the detection and removal of inorganic and organic contaminants from wastewater that originates from municipal and industrial plants. The book covers how nanotechnology is being used to remove common contaminants, including dyes, chlorinated solvents, nitrites/nitrates, and emerging contaminants, such as pharmaceuticals, personal care products and pesticides. Sections cover nanofiltration, adsorption and remediation. Nanomaterial immobilization recovery is also addressed, along with the quantification of heat/mass transport limitations, sizing aspects and transport phenomena. Finally, regulatory aspects regarding contaminants and nanoparticles in the environment are covered. This book is an important resource for both materials scientists and environmental scientists looking to see how nanotechnology can play a role in making wastewater a less hazardous part of the global ecosystem. Addresses the role of new nanotechnology-based solutions for the detection and removal of common and emerging contaminants Discusses the environmental impact of nanoparticles used in wastewater contaminant detection and removal Explores the major challenges for using nanomaterials to detect and remove contaminants from wastewater
Download or read book A New Model for Granular Porous Media written by Alkis Payatakes and published by . This book was released on 1973 with total page 748 pages. Available in PDF, EPUB and Kindle. Book excerpt:
