ACQUISITION REPORT Sequence-0883
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170C
  Survey Type 6 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A5232PCO883
  Preplot G01A5232
  Direction 265.0°
  SOL Date 10:11:31utc 02-Jul-2002
  EOL Date 11:34:39utc 02-Jul-2002
 Attributes:  
   Wind Force 28.0 [knots] Dir NW
   Swell Height 2.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 90 [avg]  
       
  SOL EOL  
   Waterdepth 76.0 63.0 [meters]
   Bottomspeed  4.15 3.22 [knots]
   Featherangle port -3.0 port -11.5 [deg]
   Cable noise 8.4 21.8 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Port Volume 3542 3542  
   Stbd Volume 3542 3542  

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 -6.0 3542.0 3 8
2 PORT -345.0 -25.0 -6.0 3542.0 3 8

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 -520.0 250.0 -7.0 4600 Nessie-3 12.5 368 0001-0368
2 STBD -520.0 150.0 -7.0 4600 Nessie-3 12.5 368 0369-0736
3 STBD -520.0 50.0 -7.0 4600 Nessie-3 12.5 368 0737-1104
4 PORT -520.0 -50.0 -7.0 4600 Nessie-3 12.5 368 1105-1472
5 PORT -520.0 -150.0 -7.0 4600 Nessie-3 12.5 368 1473-1840
6 PORT -520.0 -250.0 -7.0 4600 Nessie-3 12.5 368 1841-2208

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

Production
  Shotpoint File Time [utc]
   SOL Noise Record(s)   2778 - 2779  
   SOL Dummy Record(s) 2780 - 2809 2780 - 2809 10:07:05 - 10:11:22
   FSP Start of Line 2810 2810 10:11:31
   MSP      
   LSP End of Line 3320 3320 11:34:39
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3321 - 3322  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2810 - 3320 2810 - 3320 10:11:31-11:34:39 Prime 12 Valid  
 Remarks:      
   Navigation Streamer depth 7.0mtr. Six streamer line.    
   Recording QC Frontsheet Set 5. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1013mB. Using Six streamer. Swell noise seen on all cables Orthogonal Line. Bird C6-11 No Comms. SP 3220-3320 , the first 200 traces on each streamer NTBP d/t current noise    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2778 - 3322 2778 - 3322 1 10090  
Stream 2
   Shot(s) Files Deck Reel Remark
  2778 - 3322 2778 - 3322 4 10090  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2134, 2067, 2185 Noisy Trace(s)  
2830     2830 ALL Gun not fired Gun 6-2. Source volume : 3307 cu.in.
3220-3320     3220-3320 1-200 Streamer noise Low frequency noise dt currents
3220-3320     3220-3320 369-569 Streamer noise Low frequency noise dt currents
3220-3320     3220-3320 737-937 Streamer noise Low frequency noise dt currents
3220-3320     3220-3320 1105-1305 Streamer noise Low frequency noise dt currents
3220-3320     3220-3320 1473-1673 Streamer noise Low frequency noise dt currents
3220-3320     3220-3320 1841-2041 Streamer noise Low frequency noise dt currents
3229-3273     3229-3273 27-43 Bird depth out of spec Bird C1-3
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1127, 379, 1895, 2183-2184 Noisy Trace(s)  
ALL     ALL ALL Swell Noise Swell noise seen on all cables
3124-3136     3124-3136 339-355 Bird depth out of spec Bird C1-16
3128     3128 ALL Gun timing error Gun 5-4 error (ms) : -1.2
3160     3160 ALL Gun timing error Gun 5-4 error (ms) : -1.2
3186     3186 ALL Gun timing error Gun 5-4 error (ms) : -1.2
3277-3286     3277-3286 27-43 Bird depth out of spec Bird C1-3
3309-3320     3309-3320 27-43 Bird depth out of spec Bird C1-3
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 22:34:46utc 02-Jul-2002