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Special Processing |
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Reprocessing VSPs
When you have suboptimal images from archived VSP data,
then reprocessing can be the answer. Advances in VSP
processing from VSFusion can yield high-quality seismic
images without having to reshoot the survey. Customize
your displays and improve your imaging to reveal hidden
information in old datasets, such as fracture networks and
lateral stratigraphic changes. Reprocessed VSPs can be
fully integrated with new or reprocessed surface seismic
data. Reprocessing offers cost-effective advantages for
all types of VSP data from standard checkshots to walkaway,
3D and AVO analysis. Old data archived on paper can be
reprocessed and stored in digital format for reliable
preservation. |
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Rock Properties from VSP Data
By utilizing information from all three components in the
VSP tool, amplitude-consistent processing may be performed
for reservoir characterization and rock property analysis.
Surface seismic processing benefits greatly from
information gathered from 2D or 3D borehole seismic data.
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Amplitude-consistent 3-C processing
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AVO estimates for surface seismic calibration
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Fracture orientation from azimuthal amplitude variations
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Anisotropy estimates through slowness curve inversion
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Tau-P domain walkaway VSP processing
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P- and S-wave estimates and ratios
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Poisson’s Ratio, Elastic Properties
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Fracture Detection
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Global/effective overburden anisotropy calculations
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2D and 3D elastic inversion for high-resolution
stratigraphic analysis
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Estimates of Q at the borehole to compensate for Q in
surface seismic data
Special Products and
Processing
- Inversion for
attributes
- Over-pressure
indicator
- Wavelet matching and
extraction
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3-component VSP rotation - Direct Component contains
downgoing P and reflected S energy. Perpendicular
component contains downgoing shear wave and
reflected P-wave energy |
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