The Reflection Of Ultrasound Beam On Layered Media

This thesis is based on the reflection and transmission coefficients to calculate thesynthetic seismograms in layered media while the source is an acoustic beam. Try toevaluate the cement bonding quality of an acoustic logging. Effects of differentparameters on the reflection sound field of vertical incidence and oblique incidence isconsidered.For layered media models, the formulas of reflection sound field are derived byreflection coefficient method. Using the transmitting matrix can get the sound fieldexpression of solid layered media. When the layered media consist of solid layers andliquid layers, the transmitting matrixes is derived to represent the multi-reflected andtransmitted waves in the entire medium while the boundary conditions are taken intoconsideration.