Correcting time lapse seismic data for overburden and recording effects
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United States of America Patent
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Sep 26, 2017
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Aug 5, 2011
filing date -
Aug 5, 2011
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Abstract
Time lapse or 4D seismic data are corrected for geologic overburden and seismic recording system effects. The data from a survey at one time of interest is processed within a selected frequency band and the reservoir level is normalized by the overburden. The results are used to extract reservoir amplitudes from the data of that same survey. Frequencies where overburden signal-to-noise ratios vary dramatically between time lapse surveys may then be avoided in processing of data from the area of interest.
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