Reflection Seismology

Problems in Exploration Seismology and Their Solutions. SEG Pub. Ser. 14. Holland, J.H., 1975. Computation in Natural and Artificial Systems. University of Michigan Press, Ann Arbor. Hubral, P., Schleicher, J., Tyge, L.M., 1992.

Reflection Seismology

Authored by a geophysicist with more than 50 years of experience in research and instruction, Reflection Seismology: Theory, Data Processing and Interpretation provides a single source of foundational knowledge in reflection seismology principles and theory. Reflection seismology has a broad range of applications and is used primarily by the oil and gas industry to provide high-resolution maps and build a coherent geological story from maps of processed seismic reflections. Combined with seismic attribute analysis and other exploration geophysics tools, it aids geologists and geo-engineers in creating geological models of areas of exploration and extraction interest. Yet as important as reflection seismology is to the hydrocarbon industry, it’s difficult to find a single source that synthesizes the topic without having to wade through numerous journal articles from a range of different publishers. This book is a one-stop source of reflection seismology theory, helping scientists navigates through the wealth of new data processing techniques that have emerged in recent years. Provides geoscientists and geo-engineers with a theoretical framework for navigating the rapid emergence of new data processing techniques Presents a single source of reflection seismology content instead of a scattering of disparate journal articles Features more than 100 figures, illustrations, and working examples to aid the reader in retaining key concepts Arms geophysicists and geo-engineers with a solid foundation in seismic wave equation analysis and interpretation

Anisotropy and Microseismics Theory and Practice

Geldart, L. P., and R. E. Sheriff, 2004, Problems in exploration seismology and their solutions: SEG, Geophysical references series, no. 14. Geoltrain, S., and J. Brac, 1993, Can we image complex structures with firstarrival traveltime: ...

Anisotropy and Microseismics  Theory and Practice


The Leading Edge

Recent Publications SEG TH SEG Society of Exploration Geophysicists BOOK www.seg.org Mart 75TH ANNIVERSARY Society ... and the Solutions 14 Loved po led lart med Robert Samuel Problems in Exploration Seismology and their Solutions Lloyd ...

The Leading Edge


Numerical Methods of Exploration Seismology

In exploration seismology, migration refers to a multichannel processing step that attempts to spatially reposition ... Migration can be viewed as an approximate solution to the general elastic wavefield inversion problem (Gray, 1997).

Numerical Methods of Exploration Seismology

Exploration seismology uses seismic imaging to form detailed images of the Earth's interior, enabling the location of likely petroleum targets. Due to the size of seismic datasets, sophisticated numerical algorithms are required. This book provides a technical guide to the essential algorithms and computational aspects of data processing, covering the theory and methods of seismic imaging. The first part introduces an extensive online library of MATLAB® seismic data processing codes maintained by the CREWES project at the University of Calgary. Later chapters then focus on digital signal theory and relevant aspects of wave propagation and seismic modelling, followed by deconvolution and seismic migration methods. Presenting a rigorous explanation of how to construct seismic images, it provides readers with practical tools and codes to pursue research projects and analyses. It is ideal for advanced students and researchers in applied geophysics, and for practicing exploration geoscientists in the oil and gas industry.

Encyclopedia of Global Resources Mineral Leasing Act South Africa

However , seismic reflection data can be used not only to explore for new oil and gas reservoirs and other resources , but also to exploit existing reservoirs and resource ... Problems in Exploration Seismology and Their Solutions .

Encyclopedia of Global Resources  Mineral Leasing Act South Africa

The topic of our natural resources has become an important issue over the last few years. The abundance of some (and scarcity of others) has sparked many a debate. The four volumes in this set discuss not only the aspects of the resources themselves, but their economic and social impact as well. Plus, complimentary online access is provided through Salem Science.

Exploration Seismology

(2.30) reduces to (2.45) Any function of (x − Vt), (2.46) is a solution of eq. (2.45) (see problem 2.5a) provided that ψ and its first two derivatives are finite and continuous. This solution (known as d'Alembert's solution) furnishes ...

Exploration Seismology

This is the completely updated revision of the highly regarded book Exploration Seismology. Available now in one volume, this textbook provides a complete and systematic discussion of exploration seismology. The first part of the book looks at the history of exploration seismology and the theory - developed from the first principles of physics. All aspects of seismic acquisition are then described. The second part of the book goes on to discuss data-processing and interpretation. Applications of seismic exploration to groundwater, environmental and reservoir geophysics are also included. The book is designed to give a comprehensive up-to-date picture of the applications of seismology. Exploration Seismology's comprehensiveness makes it suitable as a text for undergraduate courses for geologists, geophysicists and engineers, as well as a guide and reference work for practising professionals.

Smart Modelling for Engineering Systems

16.5 Conclusions The approach to solve the inverse exploration seismology of fracture detection problems with the use of convolutional neural ... the error will be larger, and their solution will require the revision of neural network.

Smart Modelling for Engineering Systems

This book is a collection of research papers selected for presentation at the International Conference on Smart Computational Methods in Continuum Mechanics 2021, organized by Moscow Institute of Physics and Technology and the Institute for Computer Aided Design of Russian Academy of Sciences. The work is presented in two volumes. The primary objective of the book is to report the state-of-the-art on smart computational paradigms in continuum mechanics and explore the use of artificial intelligence paradigms such as neural nets and machine learning for improving the performance of the designed engineering systems. The book includes up-to-date smart computational methods which are used to solve problems in continuum mechanics, engineering, seismic prospecting, non-destructive testing, and so on. The main features of the book are the research papers on the application of novel smart methods including neural nets and machine learning, computational algorithms, smart software systems, and high-performance computer systems for solving complex engineering problems. The case studies pertaining to the real-world applications in the above fields are included. The book presents a collection of best research papers in English language from some of the world leaders in the field of smart system modelling and design of engineering systems.

Problems with a Localized Nature in Exploration Seismology

A wide range of problems in seismology have a localized nature.

Problems with a Localized Nature in Exploration Seismology

A wide range of problems in seismology have a localized nature. Examples include inversion for time-lapse change, salt boundary position and Amplitude or Phase Versus Angle (AVA/PVA). With increasing computational power, many inversion procedures have transitioned away from forward models with simplified physics and now simulate synthetic wavefields on a model representation of the Earth. These simulated wavefields form the basis for the model updates in the inversion. Usually these wavefields are simulated on the entire computational model, even though the region of interest and the associated updates of the computational model are localized. In this thesis I explore ways of making use of the localized nature of the inversion by limiting the wavefield generation to the region of interest. This shrinking of the computational domain leads to faster solutions, reducing the time between the start and finish of the local inversion. This shorter turn-around time facilitates decision making and improves the interactivity of the inversion procedure. I first introduce a frequency domain local solver which can generate exactly the same wavefields as a full domain solver. I then apply this local solver to both a time-lapse problem and to salt boundary inversion. I then take a step back and look at time-lapse inversion outside the scope of local solvers. By looking at differences in the Full Waveform Inversion (FWI) gradient obtained from baseline and monitor datasets I compute a confidence map of locations likely to contain time-lapse change. This confidence map is then used to regularize a joint inversion for both the baseline and monitor datasets. I compare this methodology to other existing time-lapse algorithms on a synthetic North Sea model. In this study I notice the importance of post-critical reflections and become aware of their potential for reservoir characterization. Motivated by this observation I introduce a local solver for simulating elastic reflections in a region of interest. These elastic reflections can then be used for AVA and PVA to for instance invert for reservoir characteristics. The wavefield is efficiently propagated through the overburden using precomputed acoustic Green’s functions obtained from a cheap acoustic solver.

American Book Publishing Record

616.97 A practical atlas of congenital heart disease . 616.120430 A practical guide to developmental ... 363.320681 Presbyterian questions , Presbyterian answers . ... 346.73096 Problems in exploration seismology and their solutions .

American Book Publishing Record


Topics in Numerical Analysis II

In this paper, we illustrate the application of classical finite-difference methods in exploration seismology and point out some of the numerical problems encountered. Satisfactory solutions to some of these problems have been found; ...

Topics in Numerical Analysis II

Topics in Numerical Analysis II contains in complete form, the papers given by the invited speakers to the Conference on Numerical Analysis held under the auspices of the National Committee for Mathematics of the Royal Irish Academy at University College, Dublin from 29th July to 2nd August, 1974. In addition, the titles of the contributed papers are listed together with the names and addresses of the authors who presented them at the conference. This book is divided into 20 chapters that present the papers in their entirety. They discuss such topics as applications of approximation theory to numerical analysis; interior regularity and local convergence of Galerkin finite element approximations for elliptic equations; and numerical estimates for the error of Gauss-Jacobi quadrature formulae. Some remarks on the unified treatment of elementary functions by microprogramming; application of finite difference methods to exploration seismology; and variable coefficient multistep methods for ordinary differential equations applied to parabolic partial differential equations are also presented. Other chapters cover realistic estimates for generic constants in multivariate pointwise approximation; matching of essential boundary conditions in the finite element method; and collocation, difference equations, and stitched function representations. This book will be of interest to practitioners in the fields of mathematics and computer science.

Forthcoming Books

Forthcoming Books


Mathematical and Computational Methods in Seismic Exploration and Reservoir Modeling

There are two basic approaches to the analysis of seismic recordings . ... The second postulates that the recorded seismogram can be idealized as a solution to a particular implementation of the ... The aim of exploration seismology ...

Mathematical and Computational Methods in Seismic Exploration and Reservoir Modeling


Bulletin

The low - velocity layer ( lvl ) is discussed with respect to its elements , properties , and problems in exploration seismology ( see also Geophys . Abs . 124 , no . 8378 ) . To remedy its variable effects in seismograms ...

Bulletin


Geology and Ore Deposits of the Libby Quadrangle Montana

The low - velocity layer ( lvl ) is discussed with respect to its elements , properties , and problems in exploration seismology ( see also Geophys . Abs . 124 , no . 8378 ) . To remedy its variable effects in seismograms ...

Geology and Ore Deposits of the Libby Quadrangle  Montana


Functional Analysis in Interdisciplinary Applications II

Additionally, the problems of integral geometry are correlated with various solutions (data interpretation objectives of exploration seismology, electro-exploration, acoustics, and inverse problems of kinetic equations, widely used in ...

Functional Analysis in Interdisciplinary Applications   II

Functional analysis is an important branch of mathematical analysis which deals with the transformations of functions and their algebraic and topological properties. Motivated by their large applicability to real life problems, applications of functional analysis have been the aim of an intensive study effort in the last decades, yielding significant progress in the theory of functions and functional spaces, differential and difference equations and boundary value problems, differential and integral operators and spectral theory, and mathematical methods in physical and engineering sciences. The present volume is devoted to these investigations. The publication of this collection of papers is based on the materials of the mini-symposium "Functional Analysis in Interdisciplinary Applications" organized in the framework of the Fourth International Conference on Analysis and Applied Mathematics (ICAAM 2018, September 6–9, 2018). Presenting a wide range of topics and results, this book will appeal to anyone working in the subject area, including researchers and students interested to learn more about different aspects and applications of functional analysis. Many articles are written by experts from around the world, strengthening international integration in the fields covered. The contributions to the volume, all peer reviewed, contain numerous new results. This volume contains four different chapters. The first chapter contains the contributed papers focusing on various aspects of the theory of functions and functional spaces. The second chapter is devoted to the research on difference and differential equations and boundary value problems. The third chapter contains the results of studies on differential and integral operators and on the spectral theory. The fourth chapter is focused on the simulation of problems arising in real-world applications of applied sciences.

Sci tech News

Chapters provide detailed Int'l Conference of Pacific Basin Societies solutions to representative problems in ( 10th ... Conference ( 2004 : San Diego , CA ) Ed . by PohProblems in exploration seismology and their Sang Lam et al .

Sci tech News


Smart Modeling for Engineering Systems

Kozlov, E.A.: Medium models in exploration seismology. Nedra, Tver (2006). ... 3, 16–30 (2015) Muratov, M.V., Petrov, I.B., Kvasov, I.E.: Numerical solution of exploration seismology problems in areas of fractures reservoirs. Math.

Smart Modeling for Engineering Systems

This book highlights the work of several world-class researchers on smart modeling of complex systems. The contributions are grouped into the four main categories listed below. · Numerical schemes construction for the solution of partial differential equations. · Numerical methods in continuum media mechanics problems. · Mathematical modeling in aerodynamics, plasma physics, deformable body mechanics, and geological hydrocarbon exploration. · Mathematical modeling in medical applications. The book offers a valuable resource for theoreticians and application scientists and engineers, as well as postgraduate students, in the fields of computational methods, numerical experiments, parallel algorithms, deformable solid bodies, seismic stability, seismic prospecting, migration, elastic and acoustic wave investigation, gas dynamics, astrophysics, aerodynamics, fluid dynamics, turbulent flows, hypersonic flows, detonation waves, composite materials, fracture mechanics, melting of metals, mathematical economics, medicine, and biology.

Advances in Theory and Practice of Computational Mechanics

Diffracted waves are under comprehensive study of exploration geophysicists. ... One such area is the exploration seismology problems. ... 15.2 Direct Seismic Problem Solution Direct problem solution is an 200 V. I. Golubev et al.

Advances in Theory and Practice of Computational Mechanics

This book discusses physical and mathematical models, numerical methods, computational algorithms and software complexes, which allow high-precision mathematical modeling in fluid, gas, and plasma mechanics; general mechanics; deformable solid mechanics; and strength, destruction and safety of structures. These proceedings focus on smart technologies and software systems that provide effective solutions to real-world problems in applied mechanics at various multi-scale levels. Highlighting the training of specialists for the aviation and space industry, it is a valuable resource for experts in the field of applied mathematics and mechanics, mathematical modeling and information technologies, as well as developers of smart applied software systems.