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Contents
Contents
Contents
Introduction
Motivation and Overview
Multisource Crosstalk
Seismic Migration with a Stack of Encoded Shot Gathers
Resolution Limits of LSM and FWI
Technical Contributions
Least-Squares Migration with Multisource Frequency Selection
Introduction
Theory
Phase Encoding
Frequency Selection Encoding
Eliminating Marine Acquisition Crosstalk
I/O implications
Method
Multisource Objective Function
Migration Method
Results
Conclusions
Full Waveform Inversion with Multisource Frequency Selection on Marine Streamer Data
Introduction
Theory
Numerical Results
Synthetic Data
GOM Streamer Dataset
Aspects of frequency-selection and stochastic optimization
Results of the GOM dataset
Conclusions
Resolution Limits for Wave Equation Imaging
Introduction
Resolution Limits for Traveltime Tomography
Resolution Limits for Reflection Imaging
Born Forward and Adjoint Modeling
Born Forward Modeling
Born Adjoint Modeling
Model Resolution Function and FWI Resolution Limits
Model Resolution Equation:
Reflection-Migration
Diving-Wave Transmission
Reflection-Transmission
Diffraction-Transmission
Wavelength Imaging at the Diffractor
Filling in the Model Spectrum with Multiples
Lower Wavenumber Resolution with Prism Waves and Free-surface Multiples
Intermediate Wavenumber Resolution with Interbed Multiples
Discussion and Conclusions
Concluding Remarks
Summary
Future Research Work
The Effect of Frequency Division on the Hessian
Prestack Split-Step Migration
The Relative Computational Cost
Migration versus successive steepest descent
Resolution Properties of an Ellipse
Resolution Limits for Imaging Diving Wave Residuals
Determinant of Jacobian Matrix
Publications Based on This Dissertation
Bibliography
About this document ...
Yunsong Huang 2013-09-22
