Limitations of correlation-based redatuming methods

What is it about?

Redatuming, that is, the simulated repositioning of the seismic acquisition system at a new depth level, can be achieved by different kind of interferometric techniques. In this work, we demonstrate that the correlation-based procedure works for a homogeneous overburden, and discuss the nonphysical events it generates when the overburden is not homogeneous.

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Why is it important?

As for any method, it is important to know the conditions under which conditions correlation-based interferometric redatuming is applicable and what to expect if those conditions are not fully met.