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Paper presented at the 2017 SEG International Exposition and Annual Meeting, September 24–29, 2017
Paper Number: SEG-2017-17747338
... ABSTRACT We have developed a novel Q compensation approach for adjoint-based seismic imaging by pseudodifferential scaling. The algorithm is stable, because it doesn’t involve amplitude amplification during wavefield extrapolations. We consider an image has correct amplitudes if, with the...
Paper presented at the 2012 SEG Annual Meeting, November 4–9, 2012
Paper Number: SEG-2012-1262
... Hessian, which we propose to implement as a local dip-dependent mask in curvelet space. Numerical experiments show that the novel preconditioner fits 70% of the inverse Hessian (in Frobenius norm) for the 1-parameter acoustic 2D Marmousi model. pseudodifferential hessian reservoir...
Paper presented at the 2009 SEG Annual Meeting, October 25–30, 2009
Paper Number: SEG-2009-2347
... amplitude algorithm reservoir characterization application upstream oil & gas syme operator multiple dip event artificial intelligence pseudodifferential operator pseudodifferential input vector inversion dip-dependent scaling rami nammour international exposition normal...
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