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Multiple Attenuation on Deepwater Atlantis OBS Nodes Data - Beyond Wavefield SeparationNormal access

Author: G. Xia
Event name: 70th EAGE Conference and Exhibition incorporating SPE EUROPEC 2008
Session: Seismic Multiple Attenuation (EAGE)
Publication date: 09 June 2008
DOI: 10.3997/2214-4609.20147753
Organisations: SPE, EAGE
Language: English
Info: Extended abstract, PDF ( 2.98Mb )
Price: € 20

Mirror migration on the downgoing waves produced superior images than the upgoing waves, especially on the shallow section for OBS data. However, similar to upgoing waves, the downgoing waves contain source-generated multiples. These source-side multiples often interfere with the reservoir signals, making interpretation difficult. I extended the wavefield extrapolation demultiple technique designed for upgoing waves to handle the multiples on the downgoing waves. The new workflow was successfully applied to the Atlantis OBS nodes data.

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