ACQUISITION REPORT Sequence-0482
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4864M482
  Preplot G01A4864
  Direction 18.0°
  SOL Date 00:59:47utc 20-Jun-2002
  EOL Date 02:29:06utc 20-Jun-2002
 Attributes:  
   Wind Force 15.0 [knots] Dir WNW
   Swell Height 1.5 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 144.0 93.0 [meters]
   Bottomspeed  5.0 5.0 [knots]
   Featherangle port -0.8 sb +1.0 [deg]
   Cable noise 4.85 10.9 [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 24
2 PORT -345.0 -25.0 -6.0 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 -520.0 250.0 -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)   3058 - 3059  
   SOL Dummy Record(s) 3060 - 3069 3060 - 3069 00:58:34 - 00:59:39
   FSP Start of Line 3070 3070 00:59:47
   MSP      
   LSP End of Line 3775 3775 02:29:06
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4330 - 4331  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3070 - 3079 3070 - 3079 00:59:47-01:00:55 Infill 12 Valid Overlap sp's
    3080 - 3764 3080 - 3764 01:01:02-02:27:43 Infill 12 Valid  
    3765 - 3775 3765 - 3775 02:27:51-02:29:06 Infill 0 Scratched Guns not fired due to whale sighting
 Remarks:      
   Navigation Streamer depth 7.0mtr. Six streamer line. Shot in opposite direction to adjacent lines.    
   Recording QC Frontsheet Set 5. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1022mB. Six streamer line.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  3058 - 3487 3058 - 3487 1 1961  
  3488 - 4331 3488 - 4331 2 1962  
Stream 2
   Shot(s) Files Deck Reel Remark
  3058 - 3487 3058 - 3487 3 1961  
  3488 - 4331 3488 - 4331 4 1962  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 379, 1127, 2134 Noisy Trace(s)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 369-736 Parity errors Occ low level parity errors observed cable 2
3305-3316     3305-3316 NONE Bird depth out of spec Bird C1-5 max 8.8 mtrs
3315-3324     3315-3324 NONE Bird depth out of spec Bird C1-6 max 8.7 mtrs
3315-3332     3315-3332 NONE Bird depth out of spec Bird C1-7 max 9.0 mtrs
3317-3328     3317-3328 NONE Bird depth out of spec Bird C1-3 max 8.7 mtrs
3383-3400     3383-3400 26-77 Monowing wash Low frequency, high amplitude noise due to monowing wash
3385-3400     3385-3400 NONE Bird depth out of spec Bird C1-4 max 8.9 mtrs
3389-3408     3389-3408 NONE Bird depth out of spec Bird C1-5 max 9.3 mtrs
3723     3723 NONE Bird depth out of spec Bird C3-2
3760     3760 ALL Streamer noise Low frequency noise dt currents approx 20uB affecting near traces
Comment
Shot(s)     File(s) Trace(s) Type Remark
3763     3763 ALL Line Information Whale spotted. Line aborted
4330       ALL Noise Record Noise recorded at SP 4330


 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 02:54:07utc 20-Jun-2002