Title Seismic inversion / Gerard T. Schuster

Published Tulsa, Oklahoma (8801 South Yale St., Tulsa OK 74137-3175) : Society of Exploration Geophysicists, 2017

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Description 1 online resource (xxi, 353 pages) : illustrations (some color) Series Investigations in geophysics series ; no. 20 SEG Digital Library Investigations in geophysics ; no. 20. Contents Part I. Iterative optimization methods -- 1. Introduction to seismic inversion -- 2. Introduction to gradient optimization -- 3. Steepest-descent method -- 4. Conjugate-gradient and quasi-Newton methods Part II. Traveltime tomography -- 5. Raypath traveltime tomography -- 6. Traveltime tomography: assessing model accuracy Part III. Numerical modeling -- 7. Traveltime calculation by solution of the eikonal equation -- 8. Numerical solutions to the wave equation -- 9. The viscoacoustic wave equation Part IV. Reflection migration -- 10. Forward and adjoint modeling using Green's functions -- 11. Reverse time migration -- 12. Wavepaths -- 13. Generalized diffraction-stack migration and filtering of coherent noise -- 14. Resolution limits for wave equation imaging Part V. Least-squares migration -- 15. Iterative least-squares migration -- 16. Viscoacoustic least-squares migration -- 17. Least-squares migration filtering -- 18. Migration deconvolution Part VI. Waveform Inversion -- 19. Acoustic waveform inversion and its numerical implementation -- 20. Wave-equation inversion of skeletonized data -- 21. Acoustic waveform inversion: case histories -- 22. Elastic and viscoelastic full-waveform inversion -- 23. Vertical transverse isotropy FWI Part VII. Image-domain inversion -- 24. Classical migration velocity analysis -- 25. Generalized differential semblance optimization -- 26. Generalized image-domain inversion Summary This book describes the theory and practice of inverting seismic data for the subsurface rock properties of the earth. The primary application is for inverting reflection and/or transmission data from engineering or exploration surveys, but the methods described also can be used for earthquake studies. I have written this book with the hope that it will be largely comprehensible to scientists and advanced students in engineering, earth sciences, and physics. It is desirable that the reader has some familiarity with certain aspects of numerical computation, such as finite-difference solutions to partial differential equations, numerical linear algebra, and the basic physics of wave propagation (e.g., Snell's law and ray tracing). For those not familiar with the terminology and methods of seismic exploration, a brief introduction is provided in the Appendix of Chapter 1. Computational labs are provided for most of the chapters, and some field data labs are given as well. Matlab and Fortran labs at the end of some chapters are used to deepen the reader's understanding of the concepts and their implementation. Such exercises are introduced early and geophysical applications are presented in every chapter. For the non-geophysicist, geophysical concepts are introduced with intuitive arguments, and their description by rigorous theory is deferred to later chapters Analysis Acoustic Boundary conditions Estimation Finite difference Fourier Imaging Inversion Least squares Migration Modeling Nonlinear Optimization Reflection Refraction Reflectivity Seismic Sources Theory Tomography Traveltime Wave equation Notes SEG Digital Library"--Website Bibliography Includes bibliographical references (pages 331-344) and index Notes Title from PDF title page (SEG eBooks Website, viewed August 15, 2017) Subject Seismic traveltime inversion. Seismic reflection method -- Deconvolution. Seismic tomography. Seismology -- Mathematics. Seismic reflection method -- Deconvolution Seismic tomography Seismic traveltime inversion Seismology -- Mathematics Form Electronic book Author Society of Exploration Geophysicists, publisher. ISBN 9781560803423 1560803428 9781523116188 1523116188

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