Topics covered new development of AVO theory, AVO modeling, AVO parameter inversion, and case studies.

Estimation of hydrate concentration based on AVO modeling of BSR;

Poisson's ratio inversion based on AVO forward modeling;

3-D forward modeling of wave equation using explicit short operator;

Improved positioning principle of forward modeling;

Finite difference time domain method of GPR forward simulation;

Study on forward simulation of cross-hole seismic elastic wave equation for model of thin and alternating bed reservoir.

The paper uses random medium model and elastic wave equation of non-homogeneous medium to do systematical forward simulation and theoretical analysis on cave-in cavern, multi-cavern composition and cavernous porosity reservoir-related “a string of bead.

Parallel Algorithm based on the multithread technique for pseudospectal modeling of seismic wave;

The seismic forward modeling by F-K demigration is a new technique of seismic modeling which construct synthetic migrated section through giving a geological model,then demigrate the synthetic migrated section by F-K demigration method.

D seismic modeling can be used to study the propagation of seismic wave exactly and it is also a tool of 3-D seismic data processing and interpretation.