Geophysical research: article

Dispersive semblance processing of borehole acoustic array data
R. Akhmetsafin1
R. Akhmetsafina2
1 Limited Liability Company “Gazprom Georesurs”, Moscow, Russia 2 National Research University “Higher School of Economics”, Moscow, Russia
Journal: Geophysical research
Tome: 18
Number: 4
Year: 2017
Pages: 57-70
UDK: 550.832.44
DOI: 10.21455/gr2017.4-5
Full text
Keywords: semblance, dispersive wave analysis, acoustic logging
Аnnotation: 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).