The seismoelectric method : theory and applications / / André Revil [and three others]

• Autore: Revil André <1970->
• Pubblicazione: Chichester, England : , : Wiley Blackwell, , 2015; ©2015
• Descrizione fisica: 1 online resource (303 p.)
• Disciplina: 622/.1592
• Soggetto topico: Seismic prospecting; Prospecting - Geophysical methods
• Persona (resp. second.): RevilAndré
• Note generali: Includes index.
• Nota di bibliografia: Includes bibliographical references at the end of each chapters and index.
• Nota di contenuto: Title Page; Copyright Page; Contents; Foreword by Bernd Kulessa; Foreword by Niels Grobbe; Preface; Acknowledgments; Chapter 1 Introduction to the basic concepts; 1.1 The electrical double layer; 1.1.1 The case of silica; 1.1.1.1 A simplified approach; 1.1.1.2 The general case; 1.1.2 The case of clays; 1.1.3 Implications; 1.2 The streaming current density; 1.3 The complex conductivity; 1.3.1 Effective conductivity; 1.3.2 Saturated clayey media; 1.4 Principles of the seismoelectric method; 1.4.1 Main ideas; 1.4.2 Simple modeling with the acoustic approximation ; 1.4.2.1 The acoustic approximation in a fluid 1.4.2.2 Extension to porous media; 1.4.3 Numerical example of the coseismic and seismoelectric conversions; 1.5 Elements of poroelasticity; 1.5.1 The effective stress law; 1.5.2 Hooke ́s law in poroelastic media; 1.5.3 Drained versus undrained regimes; 1.5.4 Wave modes in the pure undrained regime; 1.6 Short history; 1.7 Conclusions; Chapter 2 Seismoelectric theory in saturated porous media; 2.1 Poroelastic medium filled with a viscoelastic fluid; 2.1.1 Properties of the two phases; 2.1.2 Properties of the porous material ; 2.1.3 The mechanical equations 2.1.3.1 Strain-stress relationships; 2.1.3.2 The field equations; 2.1.3.3 Note regarding the material properties; 2.1.3.4 Force balance equations; 2.1.4 The Maxwell equations; 2.1.5 Analysis of the wave modes; 2.1.6 Synthetic case studies; 2.1.7 Conclusions; 2.2 Poroelastic medium filled with a Newtonian fluid; 2.2.1 Classical Biot theory; 2.2.2 The u-p formulation; 2.2.3 Description of the electrokinetic coupling; 2.3 Experimental approach and data; 2.3.1 Measuring key properties; 2.3.1.1 Measuring the cation exchange capacity and the specific surface area ; 2.3.1.2 Measuring the complex conductivity 2.3.1.3 Measuring the streaming potential coupling coefficient; 2.3.2 Streaming potential dependence on salinity; 2.3.3 Streaming potential dependence on pH; 2.3.4 Influence of the inertial effect; 2.4 Conclusions; Chapter 3 Seismoelectric theory in partially saturated conditions; 3.1 Extension to the unsaturated case; 3.1.1 Generalized constitutive equations; 3.1.2 Description of the hydromechanical model; 3.1.3 Maxwell equations in unsaturated conditions; 3.2 Extension to two-phase flow ; 3.2.1 Generalization of the Biot theory in two-phase flow conditions 3.2.2 The u-p formulation for two-phase flow problems; 3.2.3 Seismoelectric conversion in two-phase flow; 3.2.4 The effect of water content on the coseismic waves; 3.2.5 Seismoelectric conversion; 3.3 Extension of the acoustic approximation; 3.4 Complex conductivity in partially saturated conditions; 3.5 Comparison with experimental data; 3.5.1 The effect of saturation; 3.5.2 Additional scaling relationships; 3.5.3 Relative coupling coefficient with the Brooks and Corey model ; 3.5.4 Relative coupling coefficient with the Van Genuchten model
• Sommario/riassunto: The seismoelectric method consists of measuring electromagnetic signals associated with the propagation of seismic waves or seismic sources in porous media. This method is useful in an increasing number of applications, for example to characterize aquifers, contaminant plumes or the vadose zone. This book provides the first full overview of the fundamental concepts of this method. It begins with a historical perspective, provides a full explanation of the fundamental mechanisms, laboratory investigations, and the formulation of the forward and inverse problems. It provides a recent extension
• Titolo autorizzato: The seismoelectric method
• ISBN: 1-118-66030-7; 1-118-66027-7; 1-118-66028-5
• Formato: Materiale a stampa
• Livello bibliografico: Monografia
• Lingua di pubblicazione: Inglese
• Record Nr.: 9910814366903321
• Lo trovi qui: Univ. Federico II