COCORP VERMONT 3

Start Date 6/30/80 End Date 8/1/80 Date of Startup ?/?/?
Contractor GEOSOURCE Crew Number 6834
COCORP Honcho L BROWN
Startup Supervisor No One Surface Coverage 61km


PARAMETERS

Recording System MDS-10 No. of Channels 96 Geophone Group Spacing 100.6m Source Spacing 201.2m Source/Nearest Receiver Offset 3stations
Push/Pull PUSH Offend of Split OFFEND Noise Reject YES Vibrator Power ?????% Stacking Fold 24
Sampling Interval 4 Antialias Filter 62.5hz Sweep Freq. Start 8hz Sweep Freq. End 40hz Sweep Duration 22seconds
Total Record Time 42seconds Correlated Record Length 20seconds Upsweep or Downsweep UP Number of Sweeps per VP 16 Notch Filter 60hz


Geophone Array

Geophone Type ETL-EV_22B Natural Frequency of Geophone 7.5hz Number of Geophones per Station 24
Spacing Between Geophone Elements 8.5m Weighting Scheme ll22333322ll Total Geophone Array Length 93.9


Source Array

Vibrator Type 4_WABCO_Y1100,_1_WABCO_Y900
Primary Array
No. of Vibrators5 Spacing Between Vibrators 15.2 m Source Moveup Between Sweeps 7.6 m
1st Vibrator starts (relative to the flag) -26.6 m Array Source Array Length 174.8 m
Backup Array
No. of Vibrators 4 Spacing Between Vibrators 15.2 m Source Moveup Between Sweeps 7.6 m
1st Vibrator starts (relative to the flag) -34.2 m Array Source Array Length 159.6 m