Influence of low frequencies on seismic impedance inversion

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atmire.migration.oldid4281
dc.contributor.advisorMargrave, Gary F.
dc.contributor.authorEsmaeili, Sina
dc.contributor.committeememberInnanen, Kristopher A. H.
dc.contributor.committeememberLines, Laurence R.
dc.contributor.committeememberRios, Cristian
dc.date.accessioned2016-05-03T14:33:17Z
dc.date.available2016-05-03T14:33:17Z
dc.date.issued2016
dc.date.submitted2016en
dc.description.abstractAcoustic impedance is a rock property that can be derived from seismic data and contains important information about subsurface properties. Mathematically, the acoustic impedance can be calculated from earth’s reflectivity function and this function can be estimated from seismic data. However, estimation of reflectivity from seismic data even after excellent data processing, is always very bandlimited, lacking both low and high frequencies. In this situation, recovering any of this bandwidth, especially low frequencies, can be helpful. The thesis will be focused on recovering low frequencies to improve impedance estimation and this includes trying to improve a frequency domain deconvolution algorithm using different smoother types and correcting the whitening error of deconvolution operator using color operator. At the end, the maximum correlation results between acoustic impedance inversion and well impedance demonstrate using color operator can increase the maximum correlation by around 20 percent comparing with the result without using color operator.en_US
dc.identifier.citationEsmaeili, S. (2016). Influence of low frequencies on seismic impedance inversion (Master's thesis, University of Calgary, Calgary, Canada). Retrieved from https://prism.ucalgary.ca. doi:10.11575/PRISM/26517en_US
dc.identifier.doihttp://dx.doi.org/10.11575/PRISM/26517
dc.identifier.urihttp://hdl.handle.net/11023/2931
dc.language.isoeng
dc.publisher.facultyGraduate Studies
dc.publisher.institutionUniversity of Calgaryen
dc.publisher.placeCalgaryen
dc.rightsUniversity of Calgary graduate students retain copyright ownership and moral rights for their thesis. You may use this material in any way that is permitted by the Copyright Act or through licensing that has been assigned to the document. For uses that are not allowable under copyright legislation or licensing, you are required to seek permission.
dc.subjectGeophysics
dc.subject.classificationAcoustic impedance inversionen_US
dc.subject.classificationDeconvolutionen_US
dc.subject.classificationSeismic Inversionen_US
dc.titleInfluence of low frequencies on seismic impedance inversion
dc.typemaster thesis
thesis.degree.disciplineGeology and Geophysics
thesis.degree.grantorUniversity of Calgary
thesis.degree.nameMaster of Science (MSc)
ucalgary.item.requestcopytrue
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