Introduction

Seismic migration aims to move recorded seismic wavefield at the surface back into the earth at the reflector location from which they have originated. Multiple reflections, which are also recorded, are usually not accounted for in the migration process. Therefore, as a prerequisite to any correct imaging of the subsurface, multiples are traditionally attenuated ().

In this paper, I try to treat the multiples like signal rather than noise. My goal is to show that multiples can be easily imaged with a conventional shot-profile migration algorithm (, ). This migration is carried out in the (2#2,x) domain. I will assess if the migration of multiple reflections adds any type of structural information and if it can increase the signal-noise ratio of the final image.

In the first section, I review theoretical aspects of shot-profile migration and expand its concepts to image multiples. In the second part, I show migration results with 2-D synthetic and field data. In the last section, I discuss practical aspects of multiple migration.