A global approach in seismic interpretation based on cost function minimization

Abstract

The method presented in this paper is a novel approach for geological modelling from 3D seismic seismic data. Unlike traditional seismic interpretation based on labour intensive horizons tracking, this method is global and works on links between seismic points, which offers to the interpreters a high level of flexibility in the modelling whithout being limited by faults. This technique is based on cost functions and uses an optimisation process to compute the global lower minimum, which produces the optimum seismic model. Contrary to other global methods based on horizons primitives, the modelling modelling can be easily controlled by interpreters by adjusting the links. Such approach has been already tested on various data sets, where the accuracy of model was used for the geological target detection. An example of results, on case study of offshore data in Nigeria, where several geological targets could be identified, is presented