Numerical Modelling for Sub-Basalt Imaging

C-42 NUMERICAL MODELLING FOR SUB-BASALT IMAGING 1 Introduction To understand better the problems in sub-basalt imaging wave simulations are conducted on different models with different degrees of complexity using various modelling techniques (ray tracing finite difference phase screen). The aim of this work is to try to provide an overall assessment of the sub-basalt-imaging problem through modelling. In contrast to most previous models we incorporate a high degree of complexity based on field and borehole data and results from various studies in literature. The Models Different models with increasing grades of complexity have been tested during this study. The initial