Migrating around on hyperbolas and parabolas

Abstract

The term “migration” in seismic reflection imaging is traditionally used to describe a strategy by which one can transfer primary time‐domain reflections (e.g., as observed in a common‐shot or common‐offset section) into their correct spatial positions on the searched‐for subsurface reflector. It is also employed to describe a strategy to transfer primary reflections into their time‐migrated positions directly in the time domain. More recently, the term migration has also been used to describe the process by which primary reflections, as observed in a common‐offset (CO) section, are transferred to the positions where they would be observed in the zero‐offset (ZO) section. The latter procedure is referred to as migration‐to‐zero offset (MZO). It is the subject to which we want to contribute.