B-19 UPSCALING WELL LOGS TO SEISMIC SCALE – COMPARISON OF A WAVELET-TRANSFORM BASED METHOD WITH A GEOSTATISTICAL TECHNIQUE A. DOUILLARD D. SCHLUMBERGER O. BALZ Abstract 1 This paper is aimed at pointing out the importance of upscaling well logs in seismic reservoir characterization and presenting a new technique based on the wavelet transform. First an example is given that points out the necessity to perform upscaling of a porosity log in order to compare it with seismic amplitudes in view of characterizing a reservoir. A method based on the wavelet transform is used to carry out this upscaling and is


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