COCORP ARKANSAS 3

Start Date 2/16/83 End Date 4/10/81 Date of Startup ?/?/?
Contractor GEOSOURCE Crew Number 6834
COCORP Honcho DOUG NELSON
Startup Supervisor No Body Surface Coverage 148.3km


PARAMETERS

Recording System MDS-10 No. of Channels 96 Geophone Group Spacing 100.6m Source Spacing 201.2m Source/Nearest Receiver Offset 4stations
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 26seconds
Total Record Time 42seconds Correlated Record Length 16seconds 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 22.9 m Source Moveup Between Sweeps 11.4 m
1st Vibrator starts (relative to the flag) -40 m Array Source Array Length 262.9 m
Backup Array
No. of Vibrators 4 Spacing Between Vibrators 22.9 m Source Moveup Between Sweeps 11.4 m
1st Vibrator starts (relative to the flag) -51.4 m Array Source Array Length 240 m