Attenuation tomography: an application to gashydrate and free-gas detection
G. Rossi, G. Böhm, D. Gei and G. Madrussani
Event name: 67th EAGE Conference and Exhibition - Workshops
Session: WS 2: Seismic Q: Observations, Mechanisms and Interpretation
Publication date: 13 June 2005
Info: Extended abstract, PDF ( 1.14Mb )
Price: € 20
The tomographic inversion of the attenuation of reflected arrivals, through the frequency shift method is tested on a synthetic case and successively applied on the real data set acquired offshore Western Svalbard within the Hydratech EU project. The spatial variation (vertical and lateral ) of Qp are in agreement with Vp variations and with the presence of gas-hydrate and free-gas within the sediments.