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Internal Multiple Study on Åsgard Fields Smørbukk and Smørbukk Sør
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 77th EAGE Conference and Exhibition 2015, Jun 2015, Volume 2015, p.1 - 5
Abstract
New plays, both onshore and offshore, are once again highlighting the problems associated with internal multiples. Because most of our imaging techniques do not focus multiple energy, internal multiples can be a serious problem towards structural and quantitative interpretation, and can have a negative influence in velocity estimation and Q-estimation/compensation. These multiples mostly cannot be dealt with in a simple manner (e.g., moveout and periodicity attributes do not allow to discriminate them from near-by primary events). The industry has made much progress on developing tools to predict internal multiples, however the application of these tools to real data remains challenging.
We present two efforts to model internal multiples with the purpose of minimizing structural interpretation uncertainty. We analyze two (wave-equation based) internal multiple prediction algorithms; and show how the inverse scattering method can be used as a fast feasibility tool for data evaluation.