ACQUISITION REPORT Sequence-0033
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421520P033
  Preplot VP421520
  Direction 193.0°
  SOL Date 04:59:33utc 04-Aug-2002
  EOL Date 07:54:24utc 04-Aug-2002
 Attributes:  
   Wind Force 22.0 [knots] Dir SW
   Swell Height 2.0 [meters] Dir SW
   Propellor rpm 135 [avg]  
   Propellor pitch 90 [avg]  
       
  SOL EOL  
   Waterdepth 61.0 65.0 [meters]
   Bottomspeed  4.0 4.3 [knots]
   Featherangle port -1.2 sb +3.1 [deg]
   Cable noise 20.0 9.37 [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)   1653 - 1654  
   SOL Dummy Record(s) 1655 - 1664 1655 - 1664 04:58:05 - 04:59:25
   FSP Start of Line 1665 1665 04:59:33
   MSP      
   LSP End of Line 2891 2891 07:54:24
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2892 - 2893  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1665 - 2891 1665 - 2891 04:59:33-07:54:24 Prime 16 Valid  
 Remarks:      
   Navigation streamer depth 8.0mtr    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1032mB, pressure now 1022mB. High noise value, bend in cables @ SOL d/t short run-in.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1653 - 2082 1653 - 2082 1 130  
  2083 - 2512 2083 - 2512 2 131  
  2513 - 2893 2513 - 2893 1 132  
Stream 2
   Shot(s) Files Deck Reel Remark
  1653 - 2082 1653 - 2082 3 130  
  2083 - 2512 2083 - 2512 4 131  
  2513 - 2893 2513 - 2893 3 132  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 109 Killed traces  
ALL     ALL 161, 304 Noisy Trace(s)  
ALL     ALL 1492, 2497 Weak Trace(s)  
1717     1717 ALL External header lost  
2002     2002 ALL External header lost  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Swell Noise Swell noise observed on all streamers approx 15%
1683     1683 1492, 2497 Gun Timing Error Gun 2-3 error (ms) : -1.1
1721     1721 ALL Gun Timing Error Gun 2-3 error (ms) : -1.1
1843     1843 ALL Gun timing error Gun 2-3 error (ms) : -1.1
1869     1869 ALL Gun timing error Gun 2-3 error (ms) : -1.1
2027     2027 ALL Gun timing error Gun 2-3 error (ms) : -1.1
2050     2050 ALL Gun timing error Gun 4-5 error (ms) : -1.1
2050     2050 ALL Gun timing error Gun 5-3 error (ms) : 1.1
2155-2165     2155-2165 NONE Bird depth out of spec Bird C7-4
2215     2215 ALL Gun timing error Gun 2-3 error (ms) : 1.1
2415     2415 ALL Gun timing error Gun 2-3 error (ms) : -1.2
2603     2603 ALL Gun timing error Gun 2-3 error (ms) : -1.3
2675     2675 ALL Gun timing error Gun 1-1 error (ms) : 1.6
2753     2753 ALL Gun timing error Gun 2-3 error (ms) : -1.1
2756-2769     2756-2769 NONE Bird depth out of spec Bird C2-1
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 18:07:32utc 04-Aug-2002