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3D Q Tomography for Compensating Frequency Dependent Attenuation and Dispersion
- Publisher: European Association of Geoscientists & Engineers
- Source: Conference Proceedings, 72nd EAGE Conference and Exhibition incorporating SPE EUROPEC 2010, Jun 2010, cp-161-00225
- ISBN: 978-90-73781-86-3
Abstract
Complete Q compensation involves the estimation of Q and then using the resultant Q to correct the amplitude and phase effects. In this paper, we present a ray based tomographic method that is derived from our previous work on amplitude tomography for estimating Q. The estimated Q can then be applied directly to migrated traces and uses raypaths information within a 3D Q model to restore amplitude and phase by integrating the Q effect along the rays. We demonstrate, through examples, how we include the estimated Q volume in the Q compensation process to fully account for attenuation and dispersion.