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Migration Imaging Of The Transient Electromagnetic Method
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Book Synopsis Migration Imaging of the Transient Electromagnetic Method by : Xiu Li
Download or read book Migration Imaging of the Transient Electromagnetic Method written by Xiu Li and published by Springer. This book was released on 2016-10-15 with total page 143 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book is based on more than a decade of research the authors have pursued on the pseudo-seismic migration imaging of the transient electromagnetic method, and provides a series of important findings on the theory and applications in this area. It present and analyzes transforming principles, TEM wave field methods, characteristics of the TEM virtual wave field and studies on many significant related technologies. The coverage is supplemented by a wealth of 1-D, 2-D and 3-D figures to illustrate pseudo-seismic theory. The book offers a valuable resource for teachers, students, researchers and engineers in the fields of geophysics, earth exploration and information technology.
Book Synopsis Applied Informatics and Communication, Part II by : Dehuai Zeng
Download or read book Applied Informatics and Communication, Part II written by Dehuai Zeng and published by Springer Science & Business Media. This book was released on 2011-08-02 with total page 758 pages. Available in PDF, EPUB and Kindle. Book excerpt: The five volume set CCIS 224-228 constitutes the refereed proceedings of the International conference on Applied Informatics and Communication, ICAIC 2011, held in Xi'an, China in August 2011. The 446 revised papers presented were carefully reviewed and selected from numerous submissions. The papers cover a broad range of topics in computer science and interdisciplinary applications including control, hardware and software systems, neural computing, wireless networks, information systems, and image processing.
Book Synopsis New Advances in Three Dimensional Transient Electromagnetic Inversion by :
Download or read book New Advances in Three Dimensional Transient Electromagnetic Inversion written by and published by . This book was released on 2004 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Inversion of transient electromagnetic (TEM) data sets to image the subsurface three-dimensional (3-D) electrical conductivity and magnetic permeability properties can be done directly in the time domain. The technique, first introduced by Wang et al. (1994) for causal and diffusive electromagnetic fields and subsequently implemented by Zhdanov and Portniaguine (1997) in the framework of iterative migration, is based upon imaging methods originally developed for seismic wavefields (Claerbout, 1971; Tarantola, 1984). In this paper we advance the original derivations of Wang et al. (1994) and Zhdanov and Portniaguine (1997) to treat non-causal TEM fields, as well as correct a flaw in the theory for treatment of magnetic field data. Our 3D imaging scheme is based on a conjugate-gradient search for the minimum of an error functional involving EM measurements governed by Maxwell's equations without displacement currents. Treatment for magnetic field, voltage (time derivative of the magnetic field) and electric field data are given. The functional can be computed by propagating the data errors back into the model in reverse time along with a DC field, sourced by the integrated data errors over the measurement time range. By correlating these fields, including the time-integrated back-propagated fields, with the corresponding incident field and its initial value at each image point, efficient computational forms for the gradients are developed. The forms of the gradients allow for additional efficiencies when voltage and electric field data are inverted. In such instances the combined data errors can be back-propagated jointly, significantly reducing the computation time required to solve the inverse problem. The inversion algorithm is applied to the long offset transient electromagnetic measurement (LOTEM) configuration thereby demonstrating its capability in inverting non-causal field measurements of electric field and voltage, sourced by a grounded wire, over complex structures. Findings also show that migration, without iteration or preconditioning, is not an effective imaging strategy; reconstructions at the first inversion iteration bear little resemblance to simple or complex test models.
Book Synopsis Geophysical Electromagnetic Theory and Methods by : Michael S. Zhdanov
Download or read book Geophysical Electromagnetic Theory and Methods written by Michael S. Zhdanov and published by Elsevier. This book was released on 2009-06-12 with total page 869 pages. Available in PDF, EPUB and Kindle. Book excerpt: 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 practicalaspects of EM exploration for mineral and energy resources.This text is unique in its breadth and completeness in providing anoverview of EM geophysical exploration technology. The book is divided into four parts covering the foundations of EMfield theory and its applications, and emerging geophysical methods.Part I is an introduction to the field theory required for baselineunderstanding. Part II is an overview of all the basic elements ofgeophysical EM theory, from Maxwell's fundamental equations to modernmethods of modeling the EM field in complex 3-D geoelectrical formations. Part III deals with the regularized solution of ill-posedinverse electromagnetic problems, the multidimensional migration and imaging ofelectromagnetic 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, includingminerals 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
Book Synopsis Foundations of Geophysical Electromagnetic Theory and Methods by : Michael S. Zhdanov
Download or read book Foundations of Geophysical Electromagnetic Theory and Methods written by Michael S. Zhdanov and published by Elsevier. This book was released on 2017-10-26 with total page 806 pages. Available in PDF, EPUB and Kindle. Book excerpt: Foundations of Geophysical Electromagnetic Theory and Methods, Second Edition, builds on the strength of the first edition to offer a systematic exposition of geophysical electromagnetic theory and methods. This new edition highlights progress made over the last decade, with a special focus on recent advances in marine and airborne electromagnetic methods. Also included are recent case histories on practical applications in tectonic studies, mineral exploration, environmental studies and off-shore hydrocarbon exploration. The book is ideal for geoscientists working in all areas of geophysics, including exploration geophysics and applied physics, as well as graduate students and researchers working in the field of electromagnetic theory and methods. - Presents theoretical and methodological foundations of geophysical field theory - Synthesizes fundamental theory and the most recent achievements of electromagnetic (EM) geophysical methods in the framework of a unified systematic exposition - Offers a unique breadth and completeness in providing a general picture of the current state-of-the-art in EM geophysical technology - Discusses practical aspects of EM exploration for mineral and energy resources
Book Synopsis Inverse Theory and Applications in Geophysics by : Michael S. Zhdanov
Download or read book Inverse Theory and Applications in Geophysics written by Michael S. Zhdanov and published by Elsevier. This book was released on 2015-07-15 with total page 731 pages. Available in PDF, EPUB and Kindle. Book excerpt: Geophysical Inverse Theory and Applications, Second Edition, 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. It's the first book of its kind 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. Unique in its focus on providing a link between the methods used in gravity, electromagnetic, and seismic imaging and inversion, it represents an exhaustive treatise on inversion theory.Written by one of the world's foremost experts, this work is widely recognized as the ultimate researcher's reference on geophysical inverse theory and its practical scientific applications. - Presents state-of-the-art geophysical inverse theory developed in modern mathematical terminology—the first to treat many kinds of inversion and imaging techniques in a unified mathematical way - Provides a critical link between the methods used in gravity, electromagnetic, and seismic imaging and inversion, and represents an exhaustive treatise on geophysical inversion theory - Features more than 300 illustrations, figures, charts and graphs to underscore key concepts - Reflects the latest developments in inversion theory and applications and captures the most significant changes in the field over the past decade
Book Synopsis Active Geophysical Monitoring by : Hitoshi Mikada
Download or read book Active Geophysical Monitoring written by Hitoshi Mikada and published by Elsevier. This book was released on 2019-10-05 with total page 647 pages. Available in PDF, EPUB and Kindle. Book excerpt: Active Geophysical Monitoring, Second Edition, presents a key method for studying time-evolving structures and states in the tectonically active Earth's lithosphere. Based on repeated time-lapse observations and interpretation of rock-induced changes in geophysical fields periodically excited by controlled sources, active geophysical monitoring can be applied to a variety of fields in geophysics, from exploration, to seismology and disaster mitigation. This revised edition presents the results of strategic systematic development and the application of new technologies. It demonstrates the impact of active monitoring on solid Earth geophysics, also delving into key topics, such as carbon capture and storage, geodesy, and new technological tools. This book is an essential for graduate students, researchers and practitioners across geophysics. - Outlines the general concepts of active geophysical monitoring with powerful seismic vibrators and MHD generators - Provides historical background for previous studies of seismically active zones - Covers the theory and technology of active monitoring, including signal processing, data analysis, novel approaches to numerical modeling, and interpretation - Discusses case histories and presents the results of worldwide, regional active monitoring experiments - Thoroughly updated to include recent developments, such as updates relating to carbon capture and storage, microgravity, InSAR technologies, geodesy, reservoir monitoring, seismic reflection, and more
Book Synopsis Innovation and Application of Engineering Technology by : Avon Pekano Oscar
Download or read book Innovation and Application of Engineering Technology written by Avon Pekano Oscar and published by CRC Press. This book was released on 2017-07-31 with total page 226 pages. Available in PDF, EPUB and Kindle. Book excerpt: Innovation and Application of Engineering Technology contains the proceeding of International Symposium of Engineering Technology and Application Convocation (ISETA 2017, 25-28 May 2017, Montreal, Canada). The Symposium provided an international forum for discussion and communication of engineering technology and application of Civil and Environmental Engineering, Mining Engineering, Risk and Occupational Engineering and other fields related to engineering. Sponsored by Concordia University, International Joint Research Laboratory of Henan Province for Underground Space Development, Henan Polytechnic University and IJSS, Innovation and Application of Engineering Technology will be useful for researchers, engineers and graduate and Ph.D. students in related Engineering fields.
Book Synopsis Electromagnetic Methods in Applied Geophysics by : Misac N. Nabighian
Download or read book Electromagnetic Methods in Applied Geophysics written by Misac N. Nabighian and published by SEG Books. This book was released on 1988 with total page 989 pages. Available in PDF, EPUB and Kindle. Book excerpt: As a slag heap, the result of strip mining, creeps closer to his house in the Ohio hills, fifteen-year-old M. C. is torn between trying to get his family away and fighting for the home they love.
Book Synopsis Advances in Near-surface Seismology and Ground-penetrating Radar, Volume 15 by : Richard D. Miller
Download or read book Advances in Near-surface Seismology and Ground-penetrating Radar, Volume 15 written by Richard D. Miller and published by SEG Books. This book was released on 2010-01-11 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Near-surface Seismology and Ground-penetrating Radar (SEG Geophysical Developments Series No. 15) is a collection of original papers by renowned and respected authors from around the world. Technologies used in the application of near-surface seismology and ground-penetrating radar have seen significant advances in the last several years. Both methods have benefited from new processing tools, increased computer speeds, and an expanded variety of applications. This book, divided into four sections--"Reviews," "Methodology," "Integrative Approaches," and "Case Studies"--Captures the most significant cutting-edge issues in active areas of research, unveiling truly pertinent studies that address fundamental applied problems. This collection of manuscripts grew from a core group of papers presented at a post-convention workshop, "Advances in Near-surface Seismology and Ground-penetrating Radar," held during the 2009 SEG Annual Meeting in Houston, Texas. This is the first cooperative publication effort between the near-surface communities of SEG, AGU, and EEGS. It will appeal to a large and diverse audience that includes researchers and practitioners inside and outside the near-surface geophysics community. --Publisher description.
Book Synopsis Advances and applications of artificial intelligence and numerical simulation in risk emergency management and treatment by : Yunhui Zhang
Download or read book Advances and applications of artificial intelligence and numerical simulation in risk emergency management and treatment written by Yunhui Zhang and published by Frontiers Media SA. This book was released on 2023-07-24 with total page 291 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Expanded Abstracts with Biographies by :
Download or read book Expanded Abstracts with Biographies written by and published by . This book was released on 2001 with total page 1156 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Proceedings of the International Field Exploration and Development Conference 2021 by : Jia'en Lin
Download or read book Proceedings of the International Field Exploration and Development Conference 2021 written by Jia'en Lin and published by Springer Nature. This book was released on 2022-09-07 with total page 5829 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on reservoir surveillance and management, reservoir evaluation and dynamic description, reservoir production stimulation and EOR, ultra-tight reservoir, unconventional oil and gas resources technology, oil and gas well production testing, and geomechanics. This book is a compilation of selected papers from the 11th International Field Exploration and Development Conference (IFEDC 2021). The conference not only provides a platform to exchanges experience, but also promotes the development of scientific research in oil & gas exploration and production. The main audience for the work includes reservoir engineer, geological engineer, enterprise managers, senior engineers as well as professional students.
Book Synopsis Technology and Application of Environmental and Engineering Geophysics by : Qingyun Di
Download or read book Technology and Application of Environmental and Engineering Geophysics written by Qingyun Di and published by Springer. This book was released on 2017-03-30 with total page 279 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book focuses on essential theories, methods and techniques in the field of environmental and engineering geophysics that can contribute to resource detection and environmental protection. Geophysics has been playing an important role in exploring the earth, locating vital resources and promoting the development of society. This book covers a range of topics including the exploration of modern resources, such as ore deposits, coal mines, shale gas and geothermal power, and the monitoring of geological disasters, including the rock-soil body, ground deformation, mines, specific rock-soil engineering disasters, desertification of land and environmental abnormalities. This book not only offers a valuable resource for geophysical researchers; it also demonstrates how geophysics theories and methods can be practically implemented to protect our environment and promote the development of human society.
Book Synopsis Transient Electromagnetic Imaging of a Basin Margin Underneath the Savannah River Plant, Aiken, South Carolina by :
Download or read book Transient Electromagnetic Imaging of a Basin Margin Underneath the Savannah River Plant, Aiken, South Carolina written by and published by . This book was released on 1990 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental transient electromagnetic (TEM) survey was performed at the Savannah River Plant (SRP) near Aiken, South Carolina, to assess the viability of a subsurface imaging method. The goal of the survey was improve resolution of mapping the margin of a buried Triassic basin partially underlying SRP. A high data density survey was conducted utilizing multiple large loop transmitters with overlapping profiles of measurements from each transmitter. Any attempt to image subsurface structure requires such data density. A gap in interpretation tolls exists in all electrical methods between layered earth inversion and numerical modeling of two-dimensional (2D) or three-dimensional (3D) structures. Recent TEM research has focused on development of methods to image subsurface geoelectric structure without resorting to numerical modeling. The method described here constructs a subsurface geoelectric image by a novel means of stacking TEM data in both time and space. The stacking procedure is based on knowledge of where currents are flowing in the subsurface of an approximate background model. Weights for stacking of the TEM data into estimates of anomalous current flow on a subsurface grid are calculated from these known current flow patterns as a function of time, measurement position and subsurface grid element position using Biot-Savart's Law. Thus for the SRP survey, a 2D structure is imaged built on knowledge of the fields of an approximate one-dimensional (1D) model. The basin margin under SRP is successfully resolved by the imaging method. The imaging result provides better resolution than obtained by splicing together layered earth inversion models. Various pros and cons of this imaging method are discussed to indicate future directions for TEM imaging. 10 refs., 6 figs.
Download or read book Petroleum Abstracts written by and published by . This book was released on 1993 with total page 1752 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Inverse Methods in Electromagnetic Imaging by : Wolfgang-M. Boerner
Download or read book Inverse Methods in Electromagnetic Imaging written by Wolfgang-M. Boerner and published by Springer Science & Business Media. This book was released on 2013-11-21 with total page 662 pages. Available in PDF, EPUB and Kindle. Book excerpt: In recent years, there has been an increased interest in the use of polarization effects for radar and electromagnetic imaging problems (References 1, 2, and 3). The problem of electro magnetic imaging can be divided into the following areas: (1) Propagation of the Stokes' vector from the transmitter to the target region through various atmospheric conditions (rain, dust, fog, clouds, turbulence, etc.). (2) Scattering of the Stokes' vector from the object. (3) Scattering of the Stokes' vector from the rough surface, terrain, and the volume scattering. (4) Propagation of the Stokes' vector from the target region to the receiver. (5) The characteristics of the receiver relating the Stokes' vector to the output. The propagation characteristics of the Stokes' vector through various media can be described by the equation of transfer. Even though the scalar equation of transfer has been studied extensively in the past, the vector equation of transfer has not received as much attention. In recent years, however, a need for further study of the vector radiative transfer theory has become increasingly evident and several important studies have been reported. This paper presents a general formulation of the vector theory of radiative transfer under general anisotropic scattering conditions. Some useful solutions are also presented 4 8 for several practical situations. - 2. GENERAL FORMULATION OF VECTOR RADIATIVE TRANSFER THEORY Let us consider the plane-parallel problem Shovlll in Figure 1.
