ACQUISITION REPORT Sequence-0007
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421200P007
  Preplot VP421200
  Direction 13.0°
  SOL Date 15:15:10utc 29-Jul-2002
  EOL Date 19:20:22utc 29-Jul-2002
 Attributes:  
   Wind Force 15.0 [knots] Dir SW
   Swell Height 1.0 [meters] Dir WSW
   Propellor rpm 125 [avg]  
   Propellor pitch 95 [avg]  
       
  SOL EOL  
   Waterdepth 67.0 58.0 [meters]
   Bottomspeed  4.5 4.6 [knots]
   Featherangle port -1.5 sb +3.6 [deg]
   Cable noise 11.5 4.9 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Filter Slope 18 18  
   Port Volume 3542.0 3542.0  
   Stbd Volume 3542.0 3542.0  

Source Configuration
Source Position Inline Crossline Nominal Nom. Vol. Subarray Gun
Number   Offset [m] Offset [m] Depth [m] [inch ³] Count Count
1 STBD -345.0 25.0 -7.0 3542.0 3 24
2 PORT -345.0 -25.0 -7.0 3542.0 3 24

Streamer Configuration
Streamer Position Inline Crossline Nominal Length Type Group Channel Front-Tail
Number   Offset [m] Offset [m] Depth [m] [m]   Interval [m] Count  
1 STBD -520.0 350.0 -8.0 4600 Nessie-3 12.5 368 0001-0368
2 STBD -520.0 250.0 -8.0 4600 Nessie-3 12.5 368 0369-0736
3 STBD -520.0 150.0 -8.0 4600 Nessie-3 12.5 368 0737-1104
4 STBD -520.0 50.0 -8.0 4600 Nessie-3 12.5 368 1105-1472
5 PORT -520.0 -50.0 -8.0 4600 Nessie-3 12.5 368 1473-1840
6 PORT -520.0 -150.0 -8.0 4600 Nessie-3 12.5 368 1841-2208
7 PORT -520.0 -250.0 -8.0 4600 Nessie-3 12.5 368 2209-2576
8 PORT -520.0 -350.0 -8.0 4600 Nessie-3 12.5 368 2577-2944

Recording Configuration
Channel Descr. Recording Data RecLen Sample Chan Chan # Chan Chan # Filter
Set   Format Reduction [ss ¹] Int. [ms] In In Out Out Delay [ms]
1 NFH SEGD 8015, Rev.2 NONE 6.0 0.25 0036 0001-0036 0036 0001 - 0036 0.00
2 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0001-0368 0368 0001 - 0368 5.60
3 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0369-0736 0368 0369 - 0736 5.60
4 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0737-1104 0368 0737 - 1104 5.60
5 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1105-1472 0368 1105 - 1472 5.60
6 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1473-1840 0368 1473 - 1840 5.60
7 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1841-2208 0368 1841 - 2208 5.60
8 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 2209-2576 0368 2209 - 2576 5.60
9 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 2577-2944 0368 2577 - 2944 5.60

Production
  Shotpoint File Time [utc]
   SOL Noise Record(s)   2843 - 2842  
   SOL Dummy Record(s) 2841 - 2812 2841 - 2812 15:11:06 - 15:15:02
   FSP Start of Line 2811 2811 15:15:10
   MSP      
   LSP End of Line 939 939 19:20:22
   EOL Dummy Record(s)      
   EOL Noise Record(s)   938 - 937  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2811 - 939 2811 - 939 15:15:10-19:20:22 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 8.0mtr.    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1030mB. Bend noise at SOL noise record.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2843 - 2414 2843 - 2414 2 28  
  2413 - 1984 2413 - 1984 1 29  
  1983 - 1554 1983 - 1554 2 30  
  1553 - 1124 1553 - 1124 1 31  
  1123 - 937 1123 - 937 2 32  
Stream 2
   Shot(s) Files Deck Reel Remark
  2843 - 2414 2843 - 2414 4 28  
  2413 - 1984 2413 - 1984 3 29  
  1983 - 1554 1983 - 1554 4 30  
  1553 - 1124 1553 - 1124 3 31  
  1123 - 937 1123 - 937 4 32  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 109 Spiking Trace(s)  
ALL     ALL 161, 304 Noisy Trace(s)  
ALL     ALL 2497 Weak Trace(s) Trace signal less than -6dB of nominal value
Warning
Shot(s)     File(s) Trace(s) Type Remark
1829     1829 ALL Gun timing error Gun 1-2 error (ms) : 1.6
1486     1486 ALL Gun timing error Gun 5-4 error (ms) : -1.3
1145     1145 ALL Gun timing error Gun 1-2 error (ms) : 1.6
1105     1105 ALL Gun timing error Gun 1-2 error (ms) : 1.6
949     949 ALL Gun timing error Gun 3-1 error (ms) : 1.6
947     947 ALL Gun timing error Gun 1-2 error (ms) : 1.6
Comment
Shot(s)     File(s) Trace(s) Type Remark


 List of used abbreviations:
     SOL/EOL  Start/End of line. 
     FSP/LSP  First/Last shotpoint of the line. 
     FCSP/LCSP  First/Last chargeable shotpoint
     MSP  Midnight (last) shotpoint of the day
     FGSP/LGSP  First/Last Good Shotpoint
     FOSP/LOSP  First/Last Overlap Shotpoint
     FSP/LSP R/O  First/Last Shotpoint Runout
   
     Deg  Degrees: e[0,360]
     rev  Revolutions
     utc  Universal Time Coordinated
     SPs  Shotpoints
     CMPs  Common midpoints
     NTBP  Not to be processed
     SI  Seismic interference
TRILOGY INFORMATION MANAGER - ACQUISITION REPORT - GENERATED 05:31:05utc 30-Jul-2002