Amplitude-Preserved Processing and Analysis of the Mobil AVO Data Set
Published:January 01, 1998
David E. Lumley, Dave Nichols, Christine Ecker, Thorbjørn Rekdal, Arnaud Berlioux, 1998. "Amplitude-Preserved Processing and Analysis of the Mobil AVO Data Set", Comparison of Seismic Inversion Methods on a Single Real Data Set, Robert G. Keys, Douglas J. Foster
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We present our results on amplitude-preserved data processing and analysis of the Mobil AVO data set. First, we apply a source and receiver consistent amplitude balancing to the seismic data, which reduces source and receiver amplitude variance from about 8% and 15%, respectively, to within a few percent scatter. Next, we apply a time-domain conjugate-gradient multiple-suppression technique to remove multiple reflection energy and simultaneously preserve and enhance primary reflection AVO amplitudes. We perform unmigrated AVO analyses and find that the multiple-suppressed data correlate better with the well-log data than the unprocessed data. A prestack migration/inversion of the multiple-suppressed data show a clear improvement over unmigrated AVO analysis and reveal an undrilled graben block in the center of the line that exhibits a positive hydrocarbon indicator anomaly.
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Comparison of Seismic Inversion Methods on a Single Real Data Set
Papers in this volume explore the potential of a variety of seismic inversion methods applied to the same data set. They cover a wide range of topics, including effects of rock properties on seismic response, preparation of seismic data for AVO analysis, and a variety of AVO and inversion methods. The papers are an extension of a 1994 SEG postconvention workshop.