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Challenges and strategies of interbed multiple attenuation in the Asia-Pacific region

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The aim of this study is to discuss the challenges for interbed multiple attenuation in the Asia-Pacific region. Many possible multiple generators such as seafloor, carbonate layer or volcanic flow are found in the data. Without any prior subsurface knowledge, the ISS method is used in our study to estimate all the interbed multiples . In order to obtain a high resolution multiple model, some data preparation can be required such as inverting near offset data for shallow water or broadband processing for better separation of thin layers. If the survey has strong crossline dip, 3D prediction is necessary to take in account the out-of-plane components. Through case studies from offshore Australia and offshore Vietnam, we demonstrate strategies for effective interbed multiple attenuation using the ISS method.
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Authors

Min Wang, Barry Hung, Xiang Li, Stephane Fintz

Month

September

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