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S D e c


Sharp Deconvolution in p-tau domain.





Synthetic 1.5 D data. Model # 2 Model 2.

Model 2: input, SDec-output, theoretical output

Fig 2. SDec in p-tau. Input and SDec-outputs for the model 2 *.
The same sequence of images as on the  Fig 1.



Model 2: input SDec-output: reflection coefficients
SDec-output: no free-surface multiples SDec-output: no intrabed reverberations
Intrabed reverberations detected by SDec
Fig 2a. SDec in p-tau. Input and SDec-outputs for the model 2 *.
Here  three pairs of  files are displayed:
the 1st pair -
input (again: blind data) andthe 2nd SDec output (rc/pt);
the 2nd pair -
the 1st SDec output(multiples induced by free surface are removed) and
the 3rd SDec output (intrabed multiples are removed);
the 3rd pair -
input ( 1. and 5. are the same: just to identify intrabed multiples) and
intrabed multiples themselves = residuals of the 1st-and 3rd- SDec outputs.


.......




References:

1. Biryulina, Marina and Ryzhikov, Gennady,  1998,
EAGE-98.pdf: ~90 Kb  Non-Wiener Filter, or Sharp Deconvolution in Elimination  of Multiples:
   60th Mtg. Eur. Assoc. Expl Geophys.,
   Extended Abstracts,  98, Session:  1-27

2. Ryzhikov, Gennady  and  Biryulina, Marina,  1998,
SEG-98.pdf: ~240 Kb  Sharp Deconvolution in Elimination  of Multiples:
   68th  Ann. Internat. Mtg. Soc. Expl. Geophys.,
   Expanded Abstracts, ST-18.3, pp. 1983-1986

3. Ryzhikov, Gennady  and  Biryulina, Marina,  1999,
SEG-98.pdf: ~240 Kb Removal of intrabed multiples via Source-Signature Invariant Inversion,
    69th  Ann. Internat. Mtg. Soc. Expl. Geophys.,
    Expanded Abstracts, SPRO 1.8 , pp. 1076 - 1079


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Геннадий Рыжиков