Simulated Annealing Determination Of Shear Wave Travel Time
Name
1991.10 Cheng_Foley.pdf
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436.96 KB
Format
Adobe PDF
Checksum (MD5)
98e1e3a35f78d46ddc9615381996bde4
Author(s)
Cheng, C. H.
Foley, Jack
Date Issued
1991
Publisher
Massachusetts Institute of Technology. Earth Resources Laboratory
Series/Report no.
Earth Resources Laboratory Industry Consortia Annual Report;1991-10
Abstract
The method of simulated annealing is introduced to obtain relative moveouts between
different depths from an iso-offset section. This method has been shown to be more
consistent than conventional picks based on peaks, troughs, or zero crossings especially
in situations where the signal-to-noise ratio is low or the wavelet is emergent. This
method also provides a means of quantifying the relative confidence in each pick over
the entire depth of the well. The method has been applied to the data obtained by
the ARCO shear wave logging tool and compared favorably with more conventional
estimates of shear wave slowness and was shown to be robust, even in areas of weak
arrivals.
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