December 4, 2020

Download Ebook Free Groundwater Flow And Chemical Transport In Fractured Rocks

Rock Fractures and Fluid Flow

Rock Fractures and Fluid Flow
Author : National Research Council,Division on Earth and Life Studies,Commission on Geosciences, Environment and Resources,Committee on Fracture Characterization and Fluid Flow
Publisher : National Academies Press
Release Date : 1996-08-27
Category : Science
Total pages :568
GET BOOK

Scientific understanding of fluid flow in rock fractures--a process underlying contemporary earth science problems from the search for petroleum to the controversy over nuclear waste storage--has grown significantly in the past 20 years. This volume presents a comprehensive report on the state of the field, with an interdisciplinary viewpoint, case studies of fracture sites, illustrations, conclusions, and research recommendations. The book addresses these questions: How can fractures that are significant hydraulic conductors be identified, located, and characterized? How do flow and transport occur in fracture systems? How can changes in fracture systems be predicted and controlled? Among other topics, the committee provides a geomechanical understanding of fracture formation, reviews methods for detecting subsurface fractures, and looks at the use of hydraulic and tracer tests to investigate fluid flow. The volume examines the state of conceptual and mathematical modeling, and it provides a useful framework for understanding the complexity of fracture changes that occur during fluid pumping and other engineering practices. With a practical and multidisciplinary outlook, this volume will be welcomed by geologists, petroleum geologists, geoengineers, geophysicists, hydrologists, researchers, educators and students in these fields, and public officials involved in geological projects.

Fractured Rock Hydrogeology

Fractured Rock Hydrogeology
Author : John M. Sharp
Publisher : CRC Press
Release Date : 2014-06-05
Category : Science
Total pages :408
GET BOOK

Fractured rocks extend over much of the world, cropping out in shields, massifs, and the cores of major mountain ranges. They also form the basement below younger sedimentary rocks; at depth; they represent a continuous environment of extended and deep regional groundwater flow. Understanding of groundwater flow and solute transport in fractured ro

Applied Hydrogeology of Fractured Rocks

Applied Hydrogeology of Fractured Rocks
Author : B.B.S. Singhal †,R.P. Gupta
Publisher : Springer Science & Business Media
Release Date : 2010-08-20
Category : Science
Total pages :408
GET BOOK

Hydrogeology is a topical and growing subject as the earth's water resources become scarcer and more vulnerable. More than half of the surface area of continents is covered with hard rocks of low permiability. This book deals comprehensively with the fundamental principles for understanding the hydrogeological characteristics of rocks, as well as exploration techniques and assessment. It also provides in depth discussion on structural mapping, remote sensing, geophysical exploration, GIS, groundwater flow modelling and contaminant transport, field hydraulic testing including tracer tests, groundwater quality, geothermal reservoirs, managed aquifer recharge, and resources assessment and management. Hydrogeological aspects of various lithology groups, including crystalline rocks, volcanic rocks, carbonate rocks and clastic formations have been dealt with separately, using and discussing examples from all over the world. It will be an invaluable text book cum reference source for postgraduate students, researchers, exploration scientists and engineers engaged in the field of groundwater development in fractured rocks. Applied Hydrogeology of Fractured Rocks - Second Edition is thoroughly revised and extended with a new chapter, updated sections, many new examples, and expanded and updated references.

Flow and Contaminant Transport in Fractured Rock

Flow and Contaminant Transport in Fractured Rock
Author : Jacob Bear,C-F. Tsang,Ghislain De Marsily
Publisher : Academic Press
Release Date : 1993-05-04
Category : Technology & Engineering
Total pages :560
GET BOOK

Modeling flow and contaminant transport in fractured rocks / J. Bear -- Solute transport in fractured rock--applications to radionuclide waste repositories / I. Neretnieks -- Solute transport through fracture networks / L. Smith, F.W. Schwartz -- Stochastic models of fracture systems and their use in flow and transport modeling / J.-P. Chilès, G. de Marsily -- Tracer transport in fracture systems / C.-F. Tsang --Multiphase flow in fractured petroleum reservoirs / H. Kazemi, J.R. Gilman -- Unsaturated flow in fractured porous media / J.S.Y. Wang, T.N. Narasimhan -- Simulation of flow and transport in fractured porous media / G.F. Pinder, P.S. Huyakorn, E.A. Sudicky -- A summary of field test methods in fractured rocks / P. Jouanna -- Index.

Bioremediation in Fractured Rock: 1. Modeling to Inform Design, Monitoring, and Expectations

Bioremediation in Fractured Rock: 1. Modeling to Inform Design, Monitoring, and Expectations
Author : Anonim
Publisher : Unknown
Release Date : 2017
Category :
Total pages :129
GET BOOK

Abstract: Field characterization of a trichloroethene (TCE) source area in fractured mudstones produced a detailed understanding of the geology, contaminant distribution in fractures and the rock matrix, and hydraulic and transport properties. Groundwater flow and chemical transport modeling that synthesized the field characterization information proved critical for designing bioremediation of the source area. The planned bioremediation involved injecting emulsified vegetable oil and bacteria to enhance the naturally occurring biodegradation of TCE. The flow and transport modeling showed that injection will spread amendments widely over a zone of lower‐permeability fractures, with long residence times expected because of small velocities after injection and sorption of emulsified vegetable oil onto solids. Amendments transported out of this zone will be diluted by groundwater flux from other areas, limiting bioremediation effectiveness downgradient. At nearby pumping wells, further dilution is expected to make bioremediation effects undetectable in the pumped water. The results emphasize that in fracture‐dominated flow regimes, the extent of injected amendments cannot be conceptualized using simple homogeneous models of groundwater flow commonly adopted to design injections in unconsolidated porous media (e.g., radial diverging or dipole flow regimes). Instead, it is important to synthesize site characterization information using a groundwater flow model that includes discrete features representing high‐ and low‐permeability fractures. This type of model accounts for the highly heterogeneous hydraulic conductivity and groundwater fluxes in fractured‐rock aquifers, and facilitates designing injection strategies that target specific volumes of the aquifer and maximize the distribution of amendments over these volumes. Abstract : Article impact statement : Groundwater flow and solute transport modeling was critical in designing bioremediation in fractured sedimentary rock.

Publications of the Geological Survey

Publications of the Geological Survey
Author : Geological Survey (U.S.)
Publisher : Unknown
Release Date : 1992
Category : Geology
Total pages :129
GET BOOK

Advances in Groundwater Flow and Solute Transport: Pushing the Hidden Boundary

Advances in Groundwater Flow and Solute Transport: Pushing the Hidden Boundary
Author : Hongbin Zhan,QuanrongWang,ZhangWen
Publisher : MDPI
Release Date : 2019-10-01
Category : Science
Total pages :196
GET BOOK

In recent decades, the study of groundwater flow and solute transport has advanced into new territories that are beyond conventional theories, such as Darcy’s law and Fick’s law. The studied media have changed from permeable porous and fractured ones to much less permeable ones, such as clay and shale. The studied pore sizes have also changed from millimetres to micro-meters or even nano-meters. The objective of this Special Issue is to report recent advances in groundwater flow and solute transport that push the knowledge boundary into new territories which include, but are not limited to, flow and transport in sloping aquifer/hillslopes, coupled unsaturated and saturated flow, coupled aquifer-vertical/horizontal/slant well flow, interaction of aquifer with connected and disconnected rivers, non-Darcian flow, anomalous transport beyond the Fickian scheme, and flow and transport in extremely small pore spaces such as shale and tight sandstones. Contributions focusing on innovative experimental, numerical, and analytical methods for understanding unconventional problems, such as the above-listed ones, are encouraged, and contributions addressing flow and transport at interfaces of different media and crossing multiple temporal and spatial scales are of great value

Selected Water Resources Abstracts

Selected Water Resources Abstracts
Author : Anonim
Publisher : Unknown
Release Date : 1990
Category : Hydrology
Total pages :129
GET BOOK

Dynamic Fluids and Transport in Fractured Rock

Dynamic Fluids and Transport in Fractured Rock
Author : Boris Faybishenko,Paul A. Witherspoon,John Gale
Publisher : American Geophysical Union
Release Date : 2005-01-14
Category : Science
Total pages :207
GET BOOK

A comprehensive review and analysis of recent field, laboratory, and modeling investigations of flow and transport through fractured rock worldwide. Topics include recent advances in modeling, unsaturated flow and transport processes, field and laboratory experiments, microbilogicial processes coupled process and geothermal resources, NAPL transport in fracutured rock, geochemistry and chemical transport and more.

Characterization, Modeling, Monitoring, and Remediation of Fractured Rock

Characterization, Modeling, Monitoring, and Remediation of Fractured Rock
Author : Committee on Subsurface Characterization, Modeling, Monitoring, and Remediation of Fractured Rock,Committee on Geological and Geotechnical Engineering,Board on Earth Sciences and Resources,Division on Earth and Life Studies,The National Academies of Sciences, Engineering, and Medicine
Publisher : Unknown
Release Date : 2015-09-14
Category :
Total pages :244
GET BOOK

Fractured rock is the host or foundation for innumerable engineered structures related to energy, water, waste, and transportation. Characterizing, modeling, and monitoring fractured rock sites is critical to the functioning of those infrastructure, as well as to optimizing resource recovery and contaminant management. "Characterization, Modeling, Monitoring, and Remediation of Fractured Rock" examines the state of practice and state of art in the characterization of fractured rock and the chemical and biological processes related to subsurface contaminant fate and transport. This report examines new developments, knowledge, and approaches to engineering at fractured rock sites since the publication of the 1996 National Research Council report Rock Fractures and Fluid Flow: Contemporary Understanding and Fluid Flow. Fundamental understanding of the physical nature of fractured rock has changed little since 1996, but many new characterization tools have been developed, and there is now greater appreciation for the importance of chemical and biological processes that can occur in the fractured rock environment. The findings of "Characterization, Modeling, Monitoring, and Remediation of Fractured Rock" can be applied to all types of engineered infrastructure, but especially to engineered repositories for buried or stored waste and to fractured rock sites that have been contaminated as a result of past disposal or other practices. The recommendations of this report are intended to help the practitioner, researcher, and decision maker take a more interdisciplinary approach to engineering in the fractured rock environment. This report describes how existing tools -- some only recently developed -- can be used to increase the accuracy and reliability of engineering design and management given the interacting forces of nature. With an interdisciplinary approach, it is possible to conceptualize and model the fractured rock environment with acceptable levels of uncertainty and reliability, and to design systems that maximize remediation and long-term performance. Better scientific understanding could inform regulations, policies, and implementation guidelines related to infrastructure development and operations. The recommendations for research and applications to enhance practice of this book make it a valuable resource for students and practitioners in this field.

Modeling Groundwater Flow and Contaminant Transport

Modeling Groundwater Flow and Contaminant Transport
Author : Jacob Bear,Alexander H.-D. Cheng
Publisher : Springer Science & Business Media
Release Date : 2010-01-18
Category : Science
Total pages :834
GET BOOK

In many parts of the world, groundwater resources are under increasing threat from growing demands, wasteful use, and contamination. To face the challenge, good planning and management practices are needed. A key to the management of groundwater is the ability to model the movement of fluids and contaminants in the subsurface. The purpose of this book is to construct conceptual and mathematical models that can provide the information required for making decisions associated with the management of groundwater resources, and the remediation of contaminated aquifers. The basic approach of this book is to accurately describe the underlying physics of groundwater flow and solute transport in heterogeneous porous media, starting at the microscopic level, and to rigorously derive their mathematical representation at the macroscopic levels. The well-posed, macroscopic mathematical models are formulated for saturated, single phase flow, as well as for unsaturated and multiphase flow, and for the transport of single and multiple chemical species. Numerical models are presented and computer codes are reviewed, as tools for solving the models. The problem of seawater intrusion into coastal aquifers is examined and modeled. The issues of uncertainty in model input data and output are addressed. The book concludes with a chapter on the management of groundwater resources. Although one of the main objectives of this book is to construct mathematical models, the amount of mathematics required is kept minimal.

Applied Hydrogeology of Fractured Rocks

Applied Hydrogeology of Fractured Rocks
Author : B.B.S. Singhal †,R.P. Gupta
Publisher : Springer Science & Business Media
Release Date : 2013-11-11
Category : Science
Total pages :400
GET BOOK

Hydrology is a topical and growing subject, as the earth's water resources become scarcer and more vulnerable. Although more than half the surface area of continents is covered with hard fractured rocks, there has until now been no single book available dealing specifically with fractured rock hydrogeology. This book deals comprehensively with the fundamental principles for understanding these rocks, as well as with exploration techniques and assessment. It also provides in-depth discussion of structural mapping, remote sensing, geophysical exploration, GIS, field hydraulic testing, groundwater quality and contamination, geothermal reservoirs, and resources assessment and management. Hydrogeological aspects of various lithology groups, including crystalline rocks, volcanic rocks, carbonate rocks and clastic formations, are dealt with separately, using and discussing examples from all over the world. Applied Hydrogeology of Fractured Rocks will be an invaluable reference source for postgraduate students, researchers, exploration scientists, and engineers engaged in the field of groundwater development in fractured rock areas.

Flow and Transport in Porous Media and Fractured Rock

Flow and Transport in Porous Media and Fractured Rock
Author : Muhammad Sahimi
Publisher : John Wiley & Sons
Release Date : 2011-05-09
Category : Science
Total pages :733
GET BOOK

In this standard reference of the field, theoretical and experimental approaches to flow, hydrodynamic dispersion, and miscible displacements in porous media and fractured rock are considered. Two different approaches are discussed and contrasted with each other. The first approach is based on the classical equations of flow and transport, called 'continuum models'. The second approach is based on modern methods of statistical physics of disordered media; that is, on 'discrete models', which have become increasingly popular over the past 15 years. The book is unique in its scope, since (1) there is currently no book that compares the two approaches, and covers all important aspects of porous media problems; and (2) includes discussion of fractured rocks, which so far has been treated as a separate subject. Portions of the book would be suitable for an advanced undergraduate course. The book will be ideal for graduate courses on the subject, and can be used by chemical, petroleum, civil, environmental engineers, and geologists, as well as physicists, applied physicist and allied scientists that deal with various porous media problems.

Flow and Transport in Fractured Porous Media

Flow and Transport in Fractured Porous Media
Author : Peter Dietrich,Rainer Helmig,Martin Sauter,Heinz Hötzl,Jürgen Köngeter,Georg Teutsch
Publisher : Springer Science & Business Media
Release Date : 2005-12-14
Category : Technology & Engineering
Total pages :447
GET BOOK

This book addresses the characterization of flow and transport in porous fractured media from experimental and modeling perspectives. It provides a comprehensive presentation of investigations performed and analyzed on different scales.

Abstracts for the AGU Western Pacific Geophysics Meeting

Abstracts for the AGU Western Pacific Geophysics Meeting
Author : Anonim
Publisher : Unknown
Release Date : 2008
Category : Geophysics
Total pages :129
GET BOOK