Principles Of Electromagnetic Methods In Surface Geophysics

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Author: Alex A. Kaufman
Publisher: Newnes
ISBN: 0444538305
Size: 25.51 MB
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Principles Of Electromagnetic Methods In Surface Geophysics by Alex A. Kaufman


Original Title: Principles Of Electromagnetic Methods In Surface Geophysics

Principles of Electromagnetic Methods in Surface Geophysics contains information about the theory of electromagnetic fields in a conducting media. It describes the theoretical and physical principles of the main geophysical methods using electromagnetic fields, including frequency and transient soundings, electromagnetic profiling, and magnetotelluric soundings. Special attention is paid to models and signal processing methods used in modern exploration geophysics for groundwater, mineral and hydrocarbon exploration. Offers an integrated approach to the description of electromagnetic geophysical fields used for surface geophysical surveys Provides a clear introduction to the physical background of electromagnetic methods and their application Rounds off the treatment of the main geophysical methods: gravity, magnetic seismic, electric and electromagnetic methods

Principles Of Electric Methods In Surface And Borehole Geophysics

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Author: Alex A. Kaufman
Publisher: Elsevier
ISBN: 9780080931845
Size: 45.14 MB
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Principles Of Electric Methods In Surface And Borehole Geophysics by Alex A. Kaufman


Original Title: Principles Of Electric Methods In Surface And Borehole Geophysics

This title covers the physical and mathematical principles of electric methods in applied geophysics. Subject material Writing style Authority of contributors

Geophysical Electromagnetic Theory And Methods

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Author: Michael S. Zhdanov
Publisher: Elsevier
ISBN: 9780080931760
Size: 66.26 MB
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Geophysical Electromagnetic Theory And Methods by Michael S. Zhdanov


Original Title: Geophysical Electromagnetic Theory And Methods

In this book the author presents the state-of-the-art electromagnetic (EM) theories and methods employed in EM geophysical exploration. The book brings together the fundamental theory of EM fields and the practical aspects of EM exploration for mineral and energy resources. This text is unique in its breadth and completeness in providing an overview of EM geophysical exploration technology. The book is divided into four parts covering the foundations of EM field theory and its applications, and emerging geophysical methods. Part I is an introduction to the field theory required for baseline understanding. Part II is an overview of all the basic elements of geophysical EM theory, from Maxwell's fundamental equations to modern methods of modeling the EM field in complex 3-D geoelectrical formations. Part III deals with the regularized solution of ill-posed inverse electromagnetic problems, the multidimensional migration and imaging of electromagnetic data, and general interpretation techniques. Part IV describes major geophysical electromagnetic methods—direct current (DC), induced polarization (IP), magnetotelluric (MT), and controlled-source electromagnetic (CSEM) methods—and covers different applications of EM methods in exploration geophysics, including minerals and HC exploration, environmental study, and crustal study. * Presents theoretical and methodological findings, as well as examples of applications of recently developed algorithms and software in solving practical problems * Describes the practical importance of electromagnetic data through enabling discussions on a construction of a closed technological cycle, processing, analysis and three-dimensional interpretation * Updates current findings in the field, especially with MT, magnetovariational and seismo-electrical methods and the practice of 3D interpretations

Basic Principles Of Induction Logging

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Author: Alex A. Kaufman
Publisher: Elsevier
ISBN: 0128025840
Size: 78.77 MB
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Basic Principles Of Induction Logging by Alex A. Kaufman


Original Title: Basic Principles Of Induction Logging

Basic Principles of Induction Logging provides geoscientists with the information required to survey the electrical conductivity of rocks surrounding a borehole. The formation conductivity distribution in the borehole vicinity is critical information required in formation evaluation and geosteering applications. Developing a theory of EM logging and on understanding basic physics for both wireline and LWD logging tools, this reference furnishes valuable insights for development and use of EM techniques in practical logging applications. Basic Principles of Induction Logging will be vital for anyone attempting to investigate, invent, and develop the next generation of EM logging tools. It will provide information required to enable operation in more challenging environments such as logging while drilling, anisotropic and thinly laminated formations, high angle and horizontal wells. Provides a step-by-step approach to the theory of electromagnetic methods in borehole applications starting from the simplest models Presents theory on the subject that has been previously hard to find, making this a must have reference for anyone working in the field Delivers a much needed update on the latest analysis methods, modelling techniques, drilling environments, and probe configurations

Geophysical Inverse Theory And Regularization Problems

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Author: Michael S. Zhdanov
Publisher: Elsevier
ISBN: 9780080532509
Size: 17.95 MB
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Geophysical Inverse Theory And Regularization Problems by Michael S. Zhdanov


Original Title: Geophysical Inverse Theory And Regularization Problems

This book presents state-of-the-art geophysical inverse theory developed in modern mathematical terminology. The book brings together fundamental results developed by the Russian mathematical school in regularization theory and combines them with the related research in geophysical inversion carried out in the West. It presents a detailed exposition of the methods of regularized solution of inverse problems based on the ideas of Tikhonov regularization, and shows the different forms of their applications in both linear and nonlinear methods of geophysical inversion. This text is the first to treat many kinds of inversion and imaging techniques in a unified mathematical manner. The book is divided in five parts covering the foundations of the inversion theory and its applications to the solution of different geophysical inverse problems, including potential field, electromagnetic, and seismic methods. The first part is an introduction to inversion theory. The second part contains a description of the basic methods of solution of the linear and nonlinear inverse problems using regularization. The following parts treat the application of regularization methods in gravity and magnetic, electromagnetic, and seismic inverse problems. The key connecting idea of these applied parts of the book is the analogy between the solutions of the forward and inverse problems in different geophysical methods. The book also includes chapters related to the modern technology of geophysical imaging, based on seismic and electromagnetic migration. This volume is unique in its focus on providing a link between the methods used in gravity, electromagnetic, and seismic imaging and inversion, and represents an exhaustive treatise on inversion theory.

Acoustic And Elastic Wave Fields In Geophysics

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Author: Alexander A. Kaufman
Publisher: Elsevier
ISBN: 9780444519559
Size: 49.68 MB
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Acoustic And Elastic Wave Fields In Geophysics by Alexander A. Kaufman


Original Title: Acoustic And Elastic Wave Fields In Geophysics

This monograph is the last volume in the series 'Acoustic and Elastic Wave Fields in Geophysics'. The previous two volumes published by Elsevier (2000, 2002) dealt mostly with wave propagation in liquid media. The third volume is dedicated to propagation of plane, spherical and cylindrical elastic waves in different media including isotropic and transversely isotropic solids, liquid-solid models, and media with cylindrical inclusions (boreholes). * Prevalence of physical reasoning on formal mathematical derivations * Readers do not need to have a strong background in mathematics and mathematical physics * Detailed analysis of wave phenomena in various types of elastic and liquid-elastic media

Electromagnetic Methods In Applied Geophysics Theory

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Author: Misac N. Nabighian
Publisher: SEG Books
ISBN: 0931830516
Size: 78.27 MB
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Electromagnetic Methods In Applied Geophysics Theory by Misac N. Nabighian


Original Title: Electromagnetic Methods In Applied Geophysics Theory

This volume presents mathematical and physical foundations common to all EM methods. There are chapters on numerical and analog modeling. The chapters on electrical properties of rocks and resistivity characteristics of geologic targets helps envisage different kinds of ground structures that may be dealt with and the effect of various factors on observed conductivities of rocks. Basic principles of modern instrument design are in "Detection of Repetitive Electromagnetic Signals." The last chapter discusses the principles of EM inversion as a first step toward achieving the elusive goal of automatic interpretation of EM data.

Geophysical Field Theory And Method Part B

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Author: Alex A. Kaufman
Publisher: Academic Press
ISBN: 0080959938
Size: 42.75 MB
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Geophysical Field Theory And Method Part B by Alex A. Kaufman


Original Title: Geophysical Field Theory And Method Part B

This book contains information about the theory of electromagnetic fields in conducting mediums. It describes the theoretical foundation of electromagnetic methods used in all areas of exploration geophysics, including a study of the earth's deep layers. This book will be useful for research and exploration geophysicists, electronic engineers, and graduate and undergraduate students in university geophysics departments. . Electromagnetic fields in conducting media . Physical principles of electromagnetic methods applied in geophysics . Relationship between electromagnetic fields and parameters of a medium

Geophysical Field Theory And Method Part C

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Author: Alex A. Kaufman
Publisher: Academic Press
ISBN: 0080959946
Size: 69.74 MB
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Geophysical Field Theory And Method Part C by Alex A. Kaufman


Original Title: Geophysical Field Theory And Method Part C

This book contains information about the theory of electromagnetic fields in conducting mediums. It describes the theoretical foundation of electromagnetic methods used in all areas of exploration geophysics, including a study of deep layers of Earth. This book will be useful for research and exploration geophysicists, electronic engineers, and graduate and university geophysics departments. Key Topics Covered Include: . Electromagnetic fields in conducting media . Physical principles of electromagnetic methods applied in geophysics . Relationship between electromagnetic fields and parameters of a medium

Principles Of Induced Polarization For Geophysical Exploration

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Author: J.S. Sumner
Publisher: Elsevier
ISBN: 0444599878
Size: 27.49 MB
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Principles Of Induced Polarization For Geophysical Exploration by J.S. Sumner


Original Title: Principles Of Induced Polarization For Geophysical Exploration

Developments in Economic Geology, 5: Principles of Induced Polarization for Geophysical Exploration focuses on the principles, methodologies, and approaches involved in induced polarization (IP), including anisotropism, electromagnetic coupling, and electrical circuits. The book first takes a look at resistivity principles, theory of IP, and laboratory work in IP. Concerns cover electrical measurements of rocks, anisotropism, early part of decay curve and the comparison with frequency effects, electrical models of induced polarization, electrical polarization, resistivities of earth materials, and resistivity exploration methods. The manuscript then elaborates on IP field equipment, telluric noise and electromagnetic coupling, IP field surveying, and drill-hole and underground surveying and the negative IP effect. Discussions focus on differences between surface and subsurface methods, current-sending system in the field, telluric (earth) currents, electromagnetic coupling, design considerations, coupling of electrical circuits, design considerations, and signal-generating system. The manuscript ponders on the complex-resistivity method and interpretation of induced-polarization data, including grade estimation of mineralization using the IP method, complex-resistivity survey, signal detection capabilities of the complex-resistivity method, and disadvantages of the complex-resistivity method. The text is a valuable source of information for researchers wanting to study induced polarization.

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