Interbed multiple prediction

A method for predicting interbed multiples, comprising:

• generating, for a first target trace, trace geometries for one or more desired shot-side traces, one or more desired receiver-side traces, and one or more desired interbed multiple generator traces, wherein the desired shot-side traces represent reflections below the interbed multiple generator layer from a source of the first target trace, the desired receiver-side traces represent reflections from below the interbed multiple generator layer to a receiver of the first target trace, the desired interbed multiple generator traces represent reflections at the interbed multiple generator layer;
• extracting a first set of reflections at the interbed multiple generator layer from one or more recorded traces closest to the desired interbed multiple generator traces;
• extracting a second set of reflections below the interbed multiple generator layer from one or more recorded traces closest to the desired shot-side traces;
• extracting a third set of reflections below the interbed multiple generator layer from one or more recorded traces closest to the desired receiver-side traces;
• and
• estimating the interbed multiples based on the extracted reflections.

A system, comprising:

• a processor;
• and
• a memory comprising program instructions executable by the processor, to:
• (a) generate trace geometries for one or more desired shot-side traces, one or more desired receiver-side traces, and one or more desired interbed multiple generator traces, for a target trace;
• (b) select one or more recorded traces closest to the desired interbed multiple generator traces, one or more recorded traces closest to the desired shot-side traces, and one or more recorded traces closest to the desired receiver-side traces;
• (c) extract a first set of reflections at the interbed multiple generator layer from the recorded traces closest to the desired interbed multiple generator traces;
• (d) extract a second set of reflections below the interbed multiple generator layer from the recorded traces closest to the desired shot-side traces;
• (e) extract a third set of reflections below the interbed multiple generator layer from one the recorded traces closest to the desired receiver-side traces;
• (f) estimate the interbed multiples for the target trace based on the first set, the second set, and the third set;
• and
• (g) perform steps (a)-(f) for a plurality of target traces in a seismic survey.