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Determination of reflectivity coefficients of longitudinal and transverse waves using seismograms of longitudinal waves
Abstract. A new approach for prestack inversion of NMO CDP gathers has been described. The main difference of conventional approach is that we combine two steps (AVO analysis and inversion) into one procedure. This approach has an advantage of using wavelet at the very beginning while the conventional approach utilizes wavelet only at the second stage. We also use the linearization approach for reflectivity inversion and reflectivity constraints, which allows us to reduce essentially cost of operations. This approach also gives us the possibility to take into account wavelet from the very beginning. The approach of taking into account priory information about density-velocity relations has been suggested. It also uses thick layer properties as constraints to stabilize the solution. Two modifications (in the time and frequency domain) have been suggested.
Printed reference: Blyas E.A., Sereda A.-V.I. Determination of reflectivity coefficients of longitudinal and transverse waves using seismograms of longitudinal waves // Vestnik of MSTU. 2006. V. 9, No 3. P. -.
Electronic reference: Blyas E.A., Sereda A.-V.I. Determination of reflectivity coefficients of longitudinal and transverse waves using seismograms of longitudinal waves // Vestnik of MSTU. 2006. V. 9, No 3. P. -. URL: http://vestnik.mstu.edu.ru/v09_3_n23/articles/02_blyas.pdf.
