Introducing 3rd Dimension into 2D Reflective Seismic Exploration in the Complex Hard Rock Environment

Abstract

In this paper, we are proposing a new methodology of 2D seismic acquisition and processing that aims to improve imaging of complex 3D geological environments. The method requires a simultaneous acquisition along two parallel receiver lines. The adapted processing highlights locations of the reflectors that are out of vertical plane by filtering the data by the apparent angle of incidence. This filtering also produces static and residual corrections as a function of this angle. Another benefit of the proposed pre-stack plane filtering is producing 3D velocity model as well as set of individually filtered and migrated sections that can be distributed in 3D volume for the visualisation proposes and interpretation free of conflicting events that would be present in conventional 2D imaging.