Modeling by True-Amplitude Demigration and Its Application in Time-Lapse Seismics

A-09 MODELING BY TRUE-AMPLITUDE DEMIGRATION AND ITS APPLICATION IN TIME-LAPSE SEISMICS Summary 1 Seismic forward modeling is a frequently used technique to produce seismic time sections for inhomogeneous earth models and arbitrary measurement configurations. However there exists another method to obtain seismograms based on the imaging process “true-amplitude demigration”. Starting with a model an artificial migrated section is created and subsequently demigrated to obtain a seismic section which is similar (but not identical) to the forward calculated one. This proceeding is called “modeling by demigration” and its application is advantageous in some special seismic imaging problems e.g. in the simulation