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A Match-filter Approach for Q Estimation and Compensation after Depth Migration
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 80th EAGE Conference and Exhibition 2018, Jun 2018, Volume 2018, p.1 - 5
Abstract
Summary
We extend a match-filter Q-estimation approach previously proposed to estimate attenuated traveltimes from depth-migrated gathers. These depth-domain attenuated traveltimes can then be used within a dedicated Q tomography scheme to reconstruct 3D Q models of the subsurface. Alternatively, we show that, in environments of moderate structural complexity, the stability and quality of this attribute enables consideration of direct Q-compensation workflows, offering attractive quality/cost trade-offs in areas suffering from spatially variant attenuation issues.
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