This is the first book entirely on the topic of Migration of Fine Particles in Porous Media. There are two purposes for the use of this book. First, the book is intended to serve as a comprehensive monograph for scientists and engineers concerned with problems of erosion, pollution and plugging due to migration of fines in porous media. Second, the book is recommended to be used as a reference book for courses offered at senior or graduate level on the topics of flow through porous media, soil erosion and pollution, or formation damage. The migration of fine particles in porous media is an engineering concern in oil production, soil erosion, ground water pollution and in the operation of filter beds. As a result, the topic has been studied by researchers working in a number of disciplines. These studies in different disciplines are conducted, by and large, independently and hence there is some repetition and perhaps more importantly there is a lack of uniformity and coherence. These studies, nevertheless, complement each other. To illustrate the point, consider for example the migration of fine particles induced by hydrodynamic forces.

Transport phenomenain porous media are encounteredin various disciplines, e. g. , civil engineering, chemical engineering, reservoir engineering, agricul tural engineering and soil science. In these disciplines, problems are en countered in which various extensive quantities, e. g. , mass and heat, are transported through a porous material domain. Often, the void space of the porous material contains two or three fluid phases, and the various ex tensive quantities are transported simultaneously through the multiphase system. In all these disciplines, decisions related to a system's development and its operation have to be made. To do so a tool is needed that will pro vide a forecast of the system's response to the implementation of proposed decisions. This response is expressed in the form of spatial and temporal distributions of the state variables that describe the system's behavior. Ex amples of such state variables are pressure, stress, strain, density, velocity, solute concentration, temperature, etc. , for each phase in the system, The tool that enables the required predictions is the model. A model may be defined as a simplified version of the real porous medium system and the transport phenomena that occur in it. Because the model is a sim plified version of the real system, no unique model exists for a given porous medium system. Different sets of simplifying assumptions, each suitable for a particular task, will result in different models.

This textbook offers a superb introduction to theoretical and practical soil mechanics. Special attention is given to the risks of failure in civil engineering, and themes covered include stresses in soils, groundwater flow, consolidation, testing of soils, and stability of slopes. Readers will learn the major principles and methods of soil mechanics, and the most important methods of determining soil parameters both in the laboratory and in situ. The basic principles of applied mechanics, that are frequently used, are offered in the appendices. The author’s considerable experience of teaching soil mechanics is evident in the many features of the book: it is packed with supportive color illustrations, helpful examples and references. Exercises with answers enable students to self-test their understanding and encourage them to explore further through additional online material. Numerous simple computer programs are provided online as Electronic Supplementary Material. As a soil mechanics textbook, this volume is ideally suited to supporting undergraduate civil engineering students. “I am really delighted that your book is now published. When I “discovered” your course a few years ago, I was elated to have finally found a book that immediately resonated with me. Your approach to teaching soil mechanics is precise, rigorous, clear, concise, or in other words “crisp." My colleagues who share the teaching of Soil Mechanics 1 and 2 (each course is taught every semester) at the UMN have also adopted your book.” Emmanuel Detournay Professor at Dept. of Civil, Environmental, and Geo-Engineering, University of Minnesota, USA

This book presents a collection of contributions from experts working on flow and transport in porous media around the globe. The book includes chapters authored by engineers, scientists, and mathematicians on single and multiphase flow and transport in homogeneous as well as heterogeneous porous media. Addressing various experimental, analytical, and modeling aspects of transport in sub-surface domains, the book offers a valuable resource for graduate students, researchers, and professionals alike.

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.

South Africa, by Christian M. Rogerson

International treaties, conventions, and organizations to protect refugees were established in the aftermath of World War II to protect people escaping targeted persecution by their own governments. However, the nature of cross-border displacement has transformed dramatically since then. Such threats as environmental change, food insecurity, and generalized violence force massive numbers of people to flee states that are unable or unwilling to ensure their basic rights, as do conditions in failed and fragile states that make possible human rights deprivations. Because these reasons do not meet the legal understanding of persecution, the victims of these circumstances are not usually recognized as "refugees," preventing current institutions from ensuring their protection.In this book, Alexander Betts develops the concept of "survival migration" to highlight the crisis in which these people find themselves. Examining flight from three of the most fragile states in Africa—Zimbabwe, the Democratic Republic of Congo, and Somalia—Betts explains variation in institutional responses across the neighboring host states. There is massive inconsistency. Some survival migrants are offered asylum as refugees; others are rounded up, detained, and deported, often in brutal conditions. The inadequacies of the current refugee regime are a disaster for human rights and gravely threaten international security. In Survival Migration, Betts outlines these failings, illustrates the enormous human suffering that results, and argues strongly for an expansion of protected categories.

Numerical Modeling of Nanoparticle Transport in Porous Media: MATLAB/PYTHON Approach focuses on modeling and numerical aspects of nanoparticle transport within single- and two-phase flow in porous media. The book discusses modeling development, dimensional analysis, numerical solutions and convergence analysis. Actual types of porous media have been considered, including heterogeneous, fractured, and anisotropic. Moreover, different interactions with nanoparticles are studied, such as magnetic nanoparticles, ferrofluids and polymers. Finally, several machine learning techniques are implemented to predict nanoparticle transport in porous media. This book provides a complete full reference in mathematical modeling and numerical aspects of nanoparticle transport in porous media. It is an important reference source for engineers, mathematicians, and materials scientists who are looking to increase their understanding of modeling, simulation, and analysis at the nanoscale. - Explains the major simulation models and numerical techniques used for predicting nanoscale transport phenomena - Provides MATLAB codes for most of the numerical simulation and Python codes for machine learning calculations - Uses examples and results to illustrate each model type to the reader - Assesses major application areas for each model type

From an evolutionary perspective, individuals have a vi- tal interest in the reproduction of their genes. Yet this interest is overlooked by social and political theory at a time when we need to steer an adaptive course through the unnatural modern world of uneven population growth and decline, global mobility, and loss of family and communal ties. In modern Darwinian theory, bearing children is only one way to reproduce. Since we share genes with our families, ethnic groups, and the species as a whole, ethnocentrism and humanism can be adaptive. They can also be hazardous when taken to extremes. On Genetic Interests canvasses strategies and ethics for conserving our genetic interests in an environmentally sustainable manner sensitive to the interests of others.

Reservoir Formation Damage, Second edition is a comprehensive treatise of the theory and modeling of common formation damage problems and is an important guide for research and development, laboratory testing for diagnosis and effective treatment, and tailor-fit- design of optimal strategies for mitigation of reservoir formation damage. The new edition includes field case histories and simulated scenarios demonstrating the consequences of formation damage in petroleum reservoirsFaruk Civan, Ph.D., is an Alumni Chair Professor in the Mewbourne School of Petroleum and Geological Engineering at the University of Oklahoma in Norman. Dr. Civan has received numerous honors and awards, including five distinguished lectureship awards and the 2003 SPE Distinguished Achievement Award for Petroleum Engineering Faculty. - Petroleum engineers and managers get critical material on evaluation, prevention, and remediation of formation damage which can save or cost millions in profits from a mechanistic point of view - State-of-the-Art knowledge and valuable insights into the nature of processes and operational practices causing formation damage - Provides new strategies designed to minimize the impact of and avoid formation damage in petroleum reservoirs with the newest drilling, monitoring, and detection techniques