Reflectivity Cross Plot of Modified Zoeppritz Equation

Beside the complexities and not readily practical applications resulting from full Zoeppritz equation, seismic amplitude reflection does give enough information beyond critical angle. Consequently, there are breakdown of equation approximations at angle incidence (Shuey’s approximation). More so, validity is only for slight contrast in elastic parameters across formations small assumed. In an attempt to address these inaccuracies enhance understanding reservoir responses prediction fluid lithology, a modified form derived using relations between constants velocities terms Pseudo Poisson’ ratio reflectivity, rigidity density reflectivity linearized forms devoid associated with original hydrocarbon exploration, exploitation production. These properties lithology discriminators. The was analyzed well data oil field sedimentary basin, onshore Niger Delta area. Reflectivity crossplot carried out comparison exact other done validate equation. results showed that can be applied exploration than shuey’s Aki & Richards’ especially deep targets wide acquisition accurate estimation intercept gradient attributes. this study gives higher accuracy far offset two foremost approximations.