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We present an application of the WEMVA methodology
to 4-D seismic data. If certain physical conditions are met,
this velocity analysis method is capable of identifying the
producing reservoirs, even for the cases of production from
multiple levels.
4-D pre-processing remains an important component of the method.
We need to insure that all image perturbations are not related to
differences in acquisition and/or processing, but only to changes
of the physical parameters of the reservoir. Furthermore,
since our processing is purely acoustic, we also need to insure
that the image changes are dominated by changes of compressional
slowness, and not by other elastic effects.
Next: Acknowledgment
Up: R. Clapp: STANFORD EXPLORATION
Previous: Discussion
Stanford Exploration Project
11/11/2002