# Seismic Data Analysis

Series | Investigations in Geophysics |
---|---|

Author | Oz Yilmaz |

DOI | http://dx.doi.org/10.1190/1.9781560801580 |

ISBN | ISBN 978-1-56080-094-1 |

Store | SEG Online Store |

Oz Yilmaz has expanded his original work on processing to include inversion and interpretation of seismic data. In addition to the developments in all aspects of conventional processing, this content represents a comprehensive and complete coverage of the modern trends in the seismic industry-from time to depth, from 3-D to 4-D, from 4-D to 4-C, and from isotropy to anisotropy.

**As technology evolves and advances, help us keep this valuable contribution to geophysics up-to-date by making your own contributions that reflect the latest science of seismic data analysis and applied geophysics.**

"*A geophysicist, who practices seismic data processing, inversion, and interpretation, would want to have a quick reference under his/her fingertips for the theory and practice of all processing methods and algorithms, for determining an optimum processing sequence with optimum parameters for each step --- whether it is for AVO inversion or for earth imaging in time and depth. Now, via SEG Wiki, you can access Seismic Data Analysis to obtain the information you need*." - Oz Yilmaz, August 2014

*Seismic Data Analysis*, or navigate the table of contents below.

## Contents

- 1 Introduction
- 2 Fundamentals of signal processing
- 3 Deconvolution
- 4 Velocity analysis and statics corrections
- 5 Migration
- 6 Dip-moveout correction and prestack migration
- 7 Noise and multiple attenuation
- 8 3-D seismic exploration
- 9 Earth imaging in depth
- 10 Earth modeling in depth
- 11 Structural inversion
- 12 Reservoir geophysics

## Introduction

- Introduction to seismic data analysis
- Processing of seismic data
- Inversion of seismic data
- Interpretation of seismic data
- From seismic exploration to seismic monitoring

## Fundamentals of signal processing

- Introduction to fundamentals of signal processing
- The 1-D Fourier transform
- The 2-D Fourier transform
- Worldwide assortment of shot records
- Gain applications
- Basic data processing sequence
- Exercises
- A mathematical review of the Fourier transform

## Deconvolution

- Introduction to deconvolution
- The convolutional model
- Inverse filtering
- Optimum Wiener filters
- Predictive deconvolution in practice
- Field data examples
- The problem of nonstationarity
- Exercises
- Mathematical foundation of deconvolution

## Velocity analysis and statics corrections

- Introduction to velocity analysis and statics corrections
- Normal moveout
- Velocity analysis
- Residual statics corrections
- Refraction statics corrections
- Exercises
- Topics in moveout and statics corrections

## Migration

- Introduction to migration
- Migration principles
- Kirchhoff migration in practice
- Finite-difference migration in practice
- Frequency-space migration in practice
- Frequency-wavenumber migration in practice
- Further aspects of migration in practice
- Exercises
- Mathematical foundation of migration

## Dip-moveout correction and prestack migration

- Introduction to dip-moveout correction and prestack migration
- Principles of dip-moveout correction
- Dip-moveout correction in practice
- Prestack time migration
- Migration velocity analysis
- Exercises
- Topics in Dip-Moveout Correction and Prestack Time Migration

## Noise and multiple attenuation

- Introduction to noise and multiple attenuation
- Multiple attenuation in the CMP domain
- Frequency-wavenumber filtering
- The slant-stack transform
- The Radon transform
- Linear uncorrelated noise attenuation
- Exercises
- Multichannel filtering techniques for noise and multiple attenuation

## 3-D seismic exploration

- Introduction to 3-D seismic exploration
- 3-D survey design and acquisition
- Processing of 3-D seismic data
- 3-D poststack migration
- 3-D prestack time migration
- Interpretation of 3-D seismic data
- Exercises
- Mathematical foundation of 3-D migration

## Earth imaging in depth

- Introduction to earth imaging in depth
- Layer replacement
- 2-D poststack depth migration
- 2-D prestack depth migration
- 3-D poststack depth migration
- 3-D prestack depth migration
- Exercises
- Diffraction and ray theory for wave propagation

## Earth modeling in depth

- Introduction to earth modeling in depth
- Models with horizontal layers
- Model with low-relief structure
- Model with complex overburden structure
- Model building
- Model updating
- Exercises
- Data modeling by inversion

## Structural inversion

- Introduction to structural inversion
- Subsalt imaging in the North Sea
- Subsalt imaging in the Gulf of Mexico
- Imaging beneath irregular water bottom in the Northwest Shelf of Australia
- Imaging beneath volcanics in the West of the Shetlands of the Atlantic Margin
- Imaging beneath shallow gas anomalies in the Gulf of Thailand
- 3-D structural inversion applied to seismic data from the Southern North Sea
- 3-D structural inversion applied to seismic data from the Central North Sea
- 3-D structural inversion applied to seismic data from offshore Indonesia
- 3-D structural inversion applied to seismic data from the Northeast China
- Exercises
- Seismic modeling