• Reformat field Data - SEG-2 to SEG-Y

Raw shot (top) and preprocessed shot (bottom)

• Vibroseis correlation with synthetic sweep (SEG-Y out)

• Trace edit / First break mute

• True amplitude recovery - T**n power scaling (n=1.4)

• Geometry definition & assignment

• Surface consistent amplitude scaling - source & receiver

• Wavelet extraction / Minimum phase conversion

• Surface consistent deconvolution - spiking (40 ms op)

• Spectral whitening

• 2-D Spatial mix (3x3 centered weighted)

• Refraction statics (datum 205 m, Vc = 1000 m/s)

• CDP sort

• Velocity analysis (constant vel. stks & vel. spectra)

• NMO / Bandpass filter / Time variant scaling

• Stretch mute - 30 percent --------------------------->

CDP stack w/root n scaling for QC

• Surface consistent residual statics (max. stk power algorithm, 11 tr pilot, 3 ms max static)

• CDP stack w/root n scaling - adjust to final datum

• Spectral whitening

• Trace mix - 3 pt center weighted ------------------>

• Migration (finite diff. 90 % stk vel

• FX deconvolution (11 pt filter, 21 tr window)

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• Time variant filter

(40-60-280-320 Hz) 0-200 ms

(20-30-150-200 Hz) 800-1000 ms

• Time variant filter

(40-60-280-320 Hz) 0-200 ms

(20-30-150-200 Hz) 800-1000 ms

• Time variant scaling

• Time variant scaling

• Display

• Display