Pre-processing methodology to apply the Marchenko method in conventional marine datasets

Abstract

Recently the application of the Marchenko method in marine field data has been of great interest in the oil industry. This method allows us to calculate the up-and downgoing Green's functions at a focal point in depth without artifacts coming from the overburden, and build images with high resolution without the influence of internal multiples. However, to run the Marchenko scheme correctly in field data it is necessary to fulfill the theoretical premises that this method requires in a pre-processing stage. The main premises are elevation statics, regularization, deconvolution, reciprocity, and removal of free-surface multiples. In this work, we present and discuss the steps elevation statics, interpolation, and reciprocity in order to successfully apply the Marchenko scheme in a marine seismic datasets.