Imaging complex regions or difficult terrains like the sub-volcanic sediments or thrust fold belt areas is crucial to understanding the earth's subsurface. Active Seismic Tomography: Theory and Applications describes current technologies for the study of seismic velocities and the elucidation of fine details of the subsurface. Key use cases include hydrocarbon reservoir characterization, identification of faults and channels, and stratigraphic and structural traps.
Volume highlights include:
- Theory and development of seismic tomography
- Numerous examples of the interpretation and analysis of active source seismic data
- Relevance of tomography data for computational geophysicists
This volume is a valuable resource for academics and professionals interested in using or developing integrated imaging approaches of the Earth's subsurface.
Author(s): Kalachand Sain, Nara Damodara
Publisher: Wiley
Year: 2023
Language: English
Pages: 145
City: Hoboken
Active Seismic Tomography
Contents
Preface
About the Authors
Glossary
Section I Theory
1 Pioneering History
1.1 Introduction
1.2 Applications
1.3 Terminology
2 Seismic Wave Equation
2.1 Elastodynamic Wave Equations
2.2 Acoustic Wave Equation
2.3 Boundary Conditions
2.4 Attenuation
2.5 Sources
3 Forward Problem of Tomography
3.1 Introduction
3.2 Finite-Difference Method
3.3 Finite-Element Method
4 Inverse Problem: Tomography
4.1 Introduction
4.2 Inverse Problem
5 Subsurface Parameterization
5.1 Introduction
5.2 Building Initial Model
5.3 Intercept-time method
5.4 Model Parameterization
5.5 Workflow to Build Initial Model
5.5.1 Example
6 Seismic Travel Time Tomography
6.1 Introduction
6.2 Traveltime Tomography
6.3 History of Algorithms
6.4 Objective Function
6.5 Model Assessment
7 Seismic Full Waveform Tomography
7.1 Introduction
7.2 Full Waveform Tomography (FWT)
7.3 Frequency-Domain FWT Algorithm
7.4 Frequency Selection Criteria
Section II Applications
8 Tomography of Synthetic Seismic Data
8.1 Introduction
8.2 Forward Modeling
8.3 Visco-Acoustic Full Waveform Tomography
8.3.1 Starting Model
8.3.2 Data Pre-Processing
8.3.3 Full Waveform Tomography
8.3.3.1 Frequency Selection Criteria
8.4 Results and Discussion
8.5 Conclusions
9 Travel Time Tomography of Seismic Data
9.1 Introduction
9.2 Geological Setting
9.2.1 Magnetic Data
9.3 Data Acquisition
9.4 Traveltime Tomography
9.4.1 Starting Velocity Models
9.4.2 Inversion
9.4.3 Model Assessment
9.4.4 Results and Discussion
9.5.5 Conclusions
10 Full Waveform Tomography of Seismic Data
10.1 Introduction
10.1.1 Gravity Data
10.2 Marine Seismic Survey
10.3 Full Waveform Tomography
10.3.1 Initial Models
10.3.2 Data Pre-processing
10.3.3 Application of Full Waveform Tomography
10.3.4 Computational Resources
10.4 Discussion
10.5 Conclusions
11 Advanced Seismic Processing Using Tomographic Results
11.1 Introduction
11.2 Filter
11.3 Denoise
11.4 Demultiple
11.5 Post Migration Demultiple
12 Future Scope
12.1 Introduction
12.2 Limitations of the Study
12.3 Future Research Scope
12.4 Concluding Remarks
References
Index
EULA
