Theory of Seismic Imaging

ISBN-13: 9783540590514 / Angielski / Miękka / 1995 / 291 str.

John A. Scales

Opis

Seismic imaging methods are currently used to produce images of the Earth's subsurface properties at diverse length scales, from high-resolution, near-surface environmental studies for oil and gas exploration to long-period images of the entire planet. This book presents the physical and mathematical basis of imaging algorithms in the context of controlled-source reflection seismology. The approach taken is motivated by physical optics and theoretical seismology. The theory is constantly put into practice via a graded sequence of computer exercises using the widely available SU (Seismic Unix) software package.

Spis treści

to seismic migration.- Harmonic analysis, delta functions, and all that.- Equations of motion for the earth.- Elastic wave equations.- Ray theory.- Kirchhoff migration.- Kirchhoff migration/inversion.- The method of stationary phase.- Downward continuation of the seismic wavefield.- Plane wave decomposition of seismograms.- Numerical methods for tracing rays.- Finite difference methods for wave propagation and migration.- SU user's manual.- SUB user's guide.