ISSN 0021-3454 (print version)
ISSN 2500-0381 (online version)

vol 64 / March, 2021

DOI 10.17586/0021-3454-2019-62-6-503-510

UDC 550.832.44


R. D. Akhmetsafin
Gazprom Georesurs Ltd., Moscow; Deputy Director

R. Z. Akhmetsafina
National Research University “Higher School of Economicsˮ, Moscow;

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Abstract. Semblance or slowness time coherence is a measure of the coherence of energy distribution be-tween recorded signals at antenna array receivers of acoustic wave logging probe in the coordinates "the reduced time of the wave path from the middle of the antenna array” — “interval time". Several semblance filtering methods are proposed to allow for elimination of the effect of aliasing and to separate the wave packet components.
Keywords: multi-element acoustic wave logging, semblance, aliasing, suppression filter, singular value decomposition, non-negative matrix decomposition

  1. Neidell N.S., Taner M.T. Geophysics, 1971, no. 3(36), pp. 482–497.
  2. Akhmetsafin R.D., Akhmetsafina R.Z. Science and technology bulletin "Karotazhnik", 2016, no. 8, pp. 98–118. (in Russ.)
  3. Kimball C.V., Marzetta T.L. Geophysics, 1984, no. 3(49), pp. 274–281.
  4. Haldorsen J.B., Johnson D. L., Plona T., Sinha B., Valero H.P., Winkler K. Oilfield Rev., 2006, no. 1(18), pp. 34–43.
  5. Flores-Mendez E., Carbajal-Romero M., Flores-Guzmán N., Sánchez-Martínez R., Rodríguez-Castellanos A. Journal of Applied Mathematics, 2012, vol. 2012, Article ID 313207,
  6. Kozyar V.F., Belokon’ D.V., Kozyar N.V., Smirnov N.A. Science and technology bulletin "Karotazhnik", 1999, no. 63, pp. 47–56.
  7. Ursin B., Silva M.G., Porsani M.J. Geophysics, 2014, no. 5(79), pp. U1–U14.
  8. Ventosa S., Simon C., Schimmel M. Geophysics, 2012, no. 2(77), pp. V31-V40.
  9. Gan S., Wang S., Chen Y., Qu S., Zu S. Geophysical Journal International, 2015, no. 2(204), pp. 768–779.
  10. Denisov M.S., Finikov D.B. Russian Geophysics, 2005, no. 1, pp. 12–16. (in Russ.)
  11. Patent 7337068 USA. Global classification of sonic logs / H. P. Valero, A. Brie, T. Endo, 2008.
  12. Marfurt K.J., Kirlin R.L., Farmer S.L., Bahorich M.S. Geophysics, 1998, no. 4(63), pp. 1150–1165.
  13. Turner G. Geophysics, 1990, no. 11(55), pp. 1496–1503.
  14. Ávila-Carrera R., Spurlin J.H., Valle-Molina C. Geofísica internacional, 2011, no. 1(50), pp. 57–76.
  15. Maroof S.I., Gravely C.J. 54th SEG Annual Meeting, Society of Exploration Geophysicists, Expanded Abstracts, 1984, Р. 623–625.
  16. Kumar R., Aravkin A.Y., Mansour H., Recht B., Herrmann F.J. 75th EAGE Conference & Exhibition in-corporating SPE EUROPEC 2013, 2013.
  17. Hsu K. Geophysics, 1990, no. 2(55), pp. 176–184.
  18. Akhmetsafin R.D. Russian Geophysics, 2015, no. 1, pp. 78-81. (in Russ.)
  19. Berry M.W., Browne M., Langville A.N., Pauca V.P., Plemmons R.J. Computational statistics & data analysis, 2007, no. 1(52), pp. 155–173.
  20. Lee D.D., Seung H.S. Nature, 1999, no. 6755(401), pp. 788–791.