
Electromagnetic Sounding of the Earth's Interior
Description
Key Features
- Presents recently developed methodological findings of the earth’s study, including seismoelectrical and renewed magnetovariational approaches
- Provides methodological guidelines for Electromagnetic data interpretation in various geological environments
- Contains a balanced set of lectures covering all aspects of Electromagnetic sounding at global, regional and local levels along with case studies, highlighting the practical importance of electromagnetic data
- Updates current findings in the field, in particular MT, magnetovariational and seismo-electrical methods and the practice of 3D interpretations
Readership
Geophysists, Exploration Geophysicists, Geoscientists working on applied electromagnetics. Secondary Audience: The geothermal industry sector and the hydrocarbon exploration sector.
Table of Contents
Part I: EM Sounding Methods
Chapter 1: Global 3-D EM Studies of the Solid Earth: Progress Status
- Abstract
- 1.1. Introduction
- 1.2. Governing equations
- 1.3. 3-D EM inversion of ground-based Dst data using C-response approach
- 1.4. 3-D EM inversion of ground-based Sq data: concept and results
- 1.5. 3-D EM inversion of satellite Dst data using matrix Q-response approach
- 1.6. Alternative concept to handle complex source structures
- 1.7. Alternative data source for global EM induction studies
- 1.8. Concluding remarks and outlook
- Acknowledgments
Chapter 2: Magnetovariational Method in Deep Geoelectrics
- Abstract
- 2.1. Introduction
- 2.2. On integrated interpretation of MV and MT data
- 2.3. Model experiments
- 2.4. MV–MT study of the Cascadian subduction zone (EMSLAB experiment)
- Acknowledgments
Chapter 3: Shallow Investigations by TEM-FAST Technique: Methodology and Examples
- Abstract
- 3.1. Introduction
- 3.2. Advantages of TEM in shallow depth studies
- 3.3. On the TEM-FAST technology
- 3.4. 1-D modeling and inversion
- 3.5. 3-D modeling and inversion
- 3.6. Joint inversion of TEM and DC soundings
- 3.7. Side effects in TEM sounding
- 3.8. Conclusions
Chapter 4: Self-Consistent Problems of Geoelectrics
- Abstract
- 4.1. Introduction
- 4.2. Induced polarization in subsurface structure
- 4.3. Self-consistent seismoelectric field
Part II: Forward Modeling and Inversion Techniques
Chapter 5: 3-D EM Forward Modeling Using Balance Technique
- Abstract
- 5.1. Modern approaches to the forward problem solution
- 5.2. Balance method of EM fields computation in models with arbitrary conductivity distribution
- 5.3. Method of the EM field computation in axially symmetric media
Chapter 6: 3-D EM Forward Modeling Using Integral Equations
- Abstract
- 6.1. Introduction
- 6.2. Volume integral equation method
- 6.3. Model examples
- 6.4. Conclusions
- Acknowledgments
Chapter 7: Inverse Problems in Modern Magnetotellurics
- Abstract
- 7.1. Introduction
- 7.2. Three features of multidimensional inverse problem
- 7.3. Three questions of Hadamard
- 7.4. MT and MV inversions in the light of Tikhonov’s theory of ill posed problems
Chapter 8: Methods of Joint Robust Inversion in Magnetotelluric and Magnetovariational Studies with Application to Synthetic Datasets
- Abstract
- 8.1. Adaptive parameterization of a geoelectric model
- 8.2. Inverted and modeling data
- 8.3. Inversion as a minimization problem
- 8.4. Study of inversion algorithms using synthetic datasets
- 8.5. Conclusions
- Acknowledgments
Chapter 9: Neural Network Reconstruction of Macroparameters of 3-D Geoelectric Structures
- Abstract
- 9.1. Introduction
- 9.2. Backpropagation technique
- 9.3. Creation of teaching and testing data pools
- 9.4. Effect of the ANN architecture on the quality of the parameters’ recognition
- 9.5. Effect of the input data type
- 9.6. Effect of the volume and structure of the training data pool
- 9.7. Extrapolation ability of ANN
- 9.8. Noise treatment
- 9.9. Case history: ANN reconstruction of the Minou fault parameters
- Acknowledgments
Part III: Data Processing, Analysis, Modeling and Interpretation
Chapter 10: Arrays of Simultaneous Electromagnetic Soundings: Design, Data Processing, Analysis, and Inversion
- Abstract
- 10.1. Simultaneous systems for natural EM fields observation
- 10.2. Multisite schemes for estimation of transfer operators
- 10.3. Temporal stability of transfer operators
- 10.4. Methods for the analysis of simultaneous EM data
- 10.5. Methods for the interpretation of simultaneous EM data
- 10.6. Conclusions
- Acknowledgments
Chapter 11: Magnetotelluric Field Transformations and Their Application in Interpretation
- Abstract
- 11.1. Introduction
- 11.2. Linear relations between MT field components
- 11.3. Point transforms of MT data
- 11.4. Examples of the use of MT field point transforms for the interpretation
- 11.5. Integral transforms
- Acknowledgments
Chapter 12: Modeling of Magnetotelluric Fields in 3-D Media
- Abstract
- 12.1. A feasibility study of MT method application in hydrocarbon exploration
- 12.2. Testing hypotheses of the geoelectric structure of the Transcaucasian region from magnetotelluric data
- 12.3. MT imaging internal structure of volcanoes
- 12.4. Simulation of MT monitoring of the magma chamber conductivity
- 12.5. Assessment of the coastal aquifer salinization
- Acknowledgments
Chapter 13: Magnetotelluric Studies in Russia: Regional-Scale Surveys and Hydrocarbon Exploration
- Abstract
- 13.1. Introduction
- 13.2. MT survey technology in brief: data acquisition, processing, analysis, and interpretation
- 13.3. Regional-scale MT studies
- 13.4. MT for hydrocarbon prospecting
- 13.5. Prospects for future
- 13.6. Conclusions
- Acknowledgments
Chapter 14: Pulse and Frequency Soundings of Shelf Hydrocarbon Reservoirs
- Abstract
- 14.1. Introduction
- 14.2. Model and sounding configurations
- 14.3. Modeling results
- 14.4. Gradient configurations
- 14.5. Limiting possibilities of soundings
- 14.6. Sounding of inhomogeneous media
- 14.7. EM sounding in the frequency-dispersive media
- 14.8. Interpretation of soundings
- 14.9. Conclusions
Product details
- No. of pages: 482
- Language: English
- Copyright: © Elsevier 2015
- Published: June 29, 2015
- Imprint: Elsevier
- eBook ISBN: 9780444635570
- Paperback ISBN: 9780444635549
About the Author
Viacheslav Spichak
Affiliations and Expertise
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