SC(1-15)-RAV typically comes in the uniaxial (SC1-RAV) and triaxial (SC3-RAV)  versions. SC3-RAV can be used to process any data acquired with triaxial configured probes (eg., SC6-DAC). It is also possible to obtain a biaxial analysis package (SC2-RAV).

The SC(1-15)-RAV software packages allow the investigator to process and visualize the acquired downhole seismic testing (DST) data so that interval velocities and attenuation values are obtained. SC(1-15)-RAV provides graphical analysis interface so that the user can review frequency spectra to identify dominant responses. The user then specifies the necessary cascadable low pass, high pass, notch, and bandpass zero phase shift digital filters to implement on the data so that the desired event (P-wave or S-wave) is isolated.

In SC(1-15)-RAV interval velocities are obtained by implementing a patented optimized cross correlation algorithm. In addition, the standard reverse polarity technique can be used. Seismic data can also be processed in Batch mode and with the FMDSM technique.

Once the data has been processed, the user can graphically display the derived interval velocities.

SC1-RAV

Spectral analysis and specifying the bandpass frequency interactively

Overlaying unfiltered onto filtered traces

Implementation of crosscorrelation technique with derived interval velocity and corresponding accuracy displayed

Implementing the crossover or reverse polarity technique where the first crossover point was selected. Selecting the calculator icon results in the interval velocity being displayed.

Displaying a seismic depth profile where acceleration, velocity, or displacement particle motions can be illustrated along with the peak particle accelerations, velocities, or displacements, respectively.

Trend lines can also be specified.

Viewing seismic traces on a stand alone basis

3D Visualization - Amplitude / Time / Depth or  Amplitude / Frequency / Depth

Graphical illustration of derived interval velocities

Graphical illustration of derived interval velocities with depth bars

SC3-RAV

SC3-RAV has add on polarization and attenuation analysis capabilities.   In addition, SC3-RAV provides interval velocity estimates along the X, Y, and Z axis, and it facilitates full waveform analysis..

X, Y, and Z component dynamic spectral analysis

Unfiltered traces superimposed upon filtered traces

Four independent velocity estimates for each source and depth increment (as opposed to only one velocity estimate for the uniaxial system). Velocity estimates are derived from the X, Y, Z, and incident ray (full waveform) time series with their corresponding accuracy weights displayed.

Polarization analysis  determines ray path angle of incidence with corresponding accuracy estimate. This allows the user to determine ray path parameters (eg., straight ray or refraction?), better event identification for filter parameter specification, and rotation of recorded seismic trace to incident angle for attenuation analysis. In addition, this information can be feed into the FMDSM technique.

Deriving angles of incidence and full seismic waveform (incident ray)

Cascadable filters (ie., band pass, notch, low pass, and high pass) for all analysis techniques and displays .

Software has all  SC1-RAV features (eg., automatic analysis, batch processing, cross-over method, and interval velocity display).

Plotting interval velocities

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Stand alone seismic data analysis

Attenuation analysis utlizing the spectral ratio technique