Very fines layers delimitation using the Wavelet Transform Modulus Maxima lines(WTMM) combined with the DWT

Sid-Ali Ouadfeul (1)

1 USTHB - Université des Sciences et de la Technologie Houari Boumediene = University of Sciences and Technology Houari Boumediene [Alger]

The delimitation of the very fines lithologies from seismic data is a crucial problem in geophysics, indeed the presence of the noise in seismic traces can deteriorate information and hide important hydrocarbons accumulations. For that we have to try in this paper to use a recent technique developed by A.Arneodo and his collaborators which is the wavelet transform modulus maxima lines (WTMM) combined with the discrete wavelet transform (DWT), to denoising traces and characterize each amplitude in the seismic trace by an exponent of Holder. In order to separate information that is of a significant geological lithology variation with the various noises. Our application at VSP data shows that this technique is a powerful tool of processing.

Mots clés: Lithologies; noise; seismic trace; the DWT; the WTMM; Holder exponent; processing

Domaines: Géophysique [physics.geo-ph]

Sid-Ali Ouadfeul. Very fines layers delimitation using the Wavelet Transform Modulus Maxima lines(WTMM) combined with the DWT. Geophysics [physics.geo-ph]. Université des Sciences et de la Technologie Houari Boumediene, 2007. ⟨tel-00503270⟩