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An Analysis Of Deconvolution: Modeling Reflectivity By Fractionally Integrated Noise

Author(s)
Saggaf, Muhammed M.; Toksoz, M. Nafi
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Massachusetts Institute of Technology. Earth Resources Laboratory
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Abstract
Reflection coefficients are observed in nature to have stochastic behavior that departs significantly from the white noise model. Conventional deconvolution methods, however, assume reflectivity to be a white noise process. In this paper we analyze the deconvolution process, study the implications of the assumption of white noise, and show that the conventional operator can recover only the white component of reflectivity. A new stochastic model, fractionally integrated noise, is proposed for modeling reflectivity. This model more closely approximates its spectral character and that encompasses white noise as a special case. We discuss different techniques to generalize the conventional deconvolution method based on the new model in order to handle reflectivity that is not white, and compare the results of the conventional and generalized filters using data derived from well logs.
Date issued
1999
URI
http://hdl.handle.net/1721.1/75433
Publisher
Massachusetts Institute of Technology. Earth Resources Laboratory
Series/Report no.
Earth Resources Laboratory Industry Consortia Annual Report;1999-15

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