Practical Imaging Of Complex Geological Structures Using Seismic Prestack Depth Migration

Describing exploration problems in complex overthrust environments and then developing practical solutions in terms of migration methods and applications, this book conveys heuristic descriptions of mathematical algorithms and provides case history applications from overthrust belts. Examples derived from model and real data sets are provided. This book evolved from a project of the Canadian Society of Exploration Geophysicists Superfund, a fund designed to support exploration geophysics research at Canadian universities. The project's purpose was to study the seismic depth imaging of complex geologic structures in the Canadian Foothills. This book is intended for seismic processors, interpreters, and researchers. It begins with a description of exploration problems in complex overthrust environments and then develops practical solutions in terms of migration methods and applications. The book conveys heuristic descriptions of mathematical algorithms and provides case-history applications from overthrust belts. In addition to conventional poststack and prestack depth-migration approaches, the book examines migration from topography and anisotropic migration methods while providing examples derived from model and real data sets. Because of the increasing interest in Foothills oil and gas exploration, the book should provide valuable information for practitioner and theoretician alike.

This is an informal review of the principle techniques and issues associated with prestack depth imaging. The intended audience for this book would be those seismic interpreters, processors, managers, and explorationists who require basic familiarity with the technology that has so greatly expanded the range of geologic structures that can be successfully imaged. The emphasis of the book is on velocity-model building techniques that are the key to successful depth imaging.

Accompanying CD-ROM includes PDF slides for teaching the material in the book and the C3-narrow-azimuth classic data set.

This is an informal review of the principle techniques and issues associated with prestack depth imaging. The intended audience for this book would be those seismic interpreters, processors, managers, and explorationists who require basic familiarity with the technology that has so greatly expanded the range of geologic structures that can be successfully imaged. The emphasis of the book is on velocity-model building techniques that are the key to successful depth imaging.

Compilation of material published 1983-2004.

This book introduces new geological analysis and geophysical methods and techniques for lithological reservoir exploration. It puts forward a set of practical geophysical methods and techniques aimed at lithological reservoirs in China. From a practical point of view, the book systematically analyses geophysical methods and technique principles, applied steps, key problems and caution notes in lithological exploration. The lessons of the book are demonstrated with a case study of the Songliao Basin, which has a large area with a low density of lithological reservoirs, indicating the methods and techniques that can identify lithological reservoirs. It is unique in its fusion of theory, method and technology and practice.

Written for practicing geophysicists, “Land Seismic Case Studies for Near-Surface Modeling and Subsurface Imaging” is a comprehensive guide to understanding and interpreting seismic data. The culmination of land seismic data acquisition and processing projects conducted by the author over the last two decades, this book contains more than nearly 800 figures from worldwide case studies—conducted in both 2D and 3D. Beginning with Chapter 1 on seismic characterization of the near-surface, Chapter 2 presents near-surface modeling by traveltime and full-wave inversion, Chapter 3 presents near-surface modeling by imaging, and then Chapter 4 includes detailed case studies for near-surface modeling. Chapter 5 reviews single- and multichannel signal processing of land seismic data with the key objective of removing surface waves and guided waves that are characterized as coherent linear noise. Uncommon seismic data acquisition methods, including large-offset acquisition in thrust belts to capture the large-amplitude supercritical reflections, swath-line acquisition, and joint PP and SH- SH seismic imaging are highlighted in Chapter 6, and Chapter 7 presents image-based rms velocity estimation and discusses the problem of velocity uncertainty. The final two chapters focus exclusively on case studies: 2D in Chapter 8 and 3D in Chapter 9. An outstanding teaching tool, this book includes analysis workflows containing processing steps designed to solve specific problems. Essential for anyone involved in acquisition, processing, and inversion of seismic data, this volume will become the definitive reference for understanding how the variables in seismic acquisition are directly reflected in the data.