Method and system for true absolute amplitude seismic imaging

A non-transitory computer readable memory having computer-executable instructions stored thereon that, when executed by a processor, perform steps comprising:

• obtaining an observed seismic dataset, wherein the observed seismic dataset comprises observed seismic traces containing primary reflections and multiple reflections;
• selecting a primary-free time window of the observed seismic traces that contains only observed multiple reflections;
• determining output seismic traces within the primary-free time window using a multiple prediction method, wherein determining output seismic traces comprises determining a scalar multiplier based, at least in part, on the output seismic traces;
• and
• determining a true absolute-amplitude seismic dataset based, at least in part, on the observed seismic dataset and the scalar multiplier.

A system, comprising:

• a seismic acquisition system configured to obtain a seismic dataset;
• and
• a seismic processing system configured to:
• obtain an observed seismic dataset, wherein the seismic dataset comprises observed seismic traces containing primary reflections and multiple reflections,
• select a primary-free time window of the observed seismic traces that contains only observed multiple reflections,
• determine output seismic traces within the primary-free time window using a multiple prediction method, wherein determining output seismic traces comprises determining a scalar multiplier based, at least in part, on the output seismic traces;
• and
• determine a true absolute-amplitude seismic dataset based, at least in part, on the observed seismic dataset and the scalar multiplier.