Component Elastic Porous Media Interface And The Wave Field Numerical Simulation

Based on my supervisor's Natural Science Fund Project: the nature gas and hydrateresearch on the basic of the composition elastic porous media (No: 40474043), this paper isfocused on the study of the interface and its wave field numerical modeling on the basis of thecomposition elastic porous media. High-resolution ability of the seismic information is veryimportant in the seismic exploration industry to ensure a successful solution of the problem ofgeologic body's geometry and the parameter of development characteristics and state of oiland gas pools. It would be very difficult to describe the complex physics phenomena of theseismic waves transmission in the stratum full of oil and gas if people use the theory of rockelasticity and wave transmission based on the elastic isotropic single-phase medium. So wemust base on the practical application and find out how seismic waves transmit in the stratumand its quantitative relation with the oil and gas stratum in order to meet with the requirementfor oil and gas pools development.Seismic waves transmission in the composition elastic porous media is complicated, soaccording to the interface where the seismic waves meet,I'd like to divide the paper into twoparts, including the seismic wave scattering on the free and medium interface based on thecomposition elastic porous media, Besides, I have modeled a lot of seismic wave transmissionphenomena in the composition elastic porous media by using the staggered-grid finitedifference method to help people better understand the seismic wave transmission's law.With my supervisor's guidance and the help of the formal scientific inheritance , I carriedout a systemic study into the composition of elastic porous media modeling based on wavephysics . The relations among its porosity, the ratio of square of the velocity and the porosityaccording to real seismic data are discussed at different levels, so we can provide a theoreticaland methodological support for the seismic wave transmission in the composition elasticporous media.Besides what I have described above, I have also got some numerical results by makingthe corresponding programming, analyse and explanation before getting some useful andvaluable conclusion.