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The Role of Minimum Phase in Internal Multiple Removal
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 82nd EAGE Annual Conference & Exhibition - Workshop Programme, Oct 2021, Volume 2021, p.1 - 3
Abstract
Given true-amplitude pre-processed data, Marchenko equation based methods could remove all overburden-borne internal multiples without the adaptive subtraction. The method hinges on calculating an inverse transmission response, however in many practical cases to find a solution, one is required to provide a part of it on input. This requirement can be lifted by invoking minimum phase - a mathematical property familiar to many geophysicists, yet normally not associated with a de-multiple workflow. Here we discuss the state of the art, challenges and road ahead for minimum phase enriched internal de-multiple. In particular we focus on the differences in minimum phase reconstruction between single input single output (1.5-D single mode) vs multiple input multiple output systems (everything else).