GEOPHYSICAL RESEARCH, 2017, vol. 18, no. 4, pp. 57-70. DOI: 10.21455/gr2017.4-5
UDC 550.832.44
Abstract References Full text (in Russian) Electronic Supplement
DISPERSIVE SEMBLANCE PROCESSING OF BOREHOLE ACOUSTIC ARRAY DATA
R.D. Akhmetsafin(1), R.Z. Akhmetsafina(2)
(1) Limited Liability Company “Gazprom Georesurs”, Moscow, Russia
(2) National Research University “Higher School of Economics”, Moscow, Russia
Abstract. A computer implementation of the method of dispersive semblance for multi-element wave acoustic logging is proposed. The correction matrix for dispersion is constructed in (f-p)-domain using sets of dispersion curves of the flexural wave or Stoneley wave. The matrix is applied in computing scheme of the conventional semblance method in (tau-p)-domain (the Matlab script is given in electronic appendix).
Keywords: semblance, dispersive wave analysis, acoustic logging.
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