ACQUISITION REPORT Sequence-0481
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4864L481
  Preplot G01A4864
  Direction 198.0°
  SOL Date 19:33:08utc 19-Jun-2002
  EOL Date 22:15:09utc 19-Jun-2002
 Attributes:  
   Wind Force 15.0 [knots] Dir N
   Swell Height 1.5 [meters] Dir SE
   Propellor rpm 131 [avg]  
   Propellor pitch 80 [avg]  
       
  SOL EOL  
   Waterdepth 75.0 214.0 [meters]
   Bottomspeed  4.9 4.8 [knots]
   Featherangle port -0.4 port -0.1 [deg]
   Cable noise 6.1 4.3 [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)   4221 - 4220  
   SOL Dummy Record(s) 4219 - 4210 4219 - 4210 19:31:55 - 19:33:01
   FSP Start of Line 4209 4209 19:33:08
   MSP      
   LSP End of Line 2931 2931 22:15:09
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2930 - 2930  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4209 - 3301 4209 - 3301 19:33:08-21:28:23 Infill 12 Valid  
    3300 - 3197 3300 - 3197 21:28:31-21:41:37 Infill 12 Valid Duplicate coverage
    3196 - 2941 3196 - 2941 21:41:44-22:13:54 Infill 12 Valid  
    2940 - 2931 2940 - 2931 22:14:01-22:15:09 Infill 12 Valid Overlap sp's. Ref sequence 475.
 Remarks:      
   Navigation Streamer depth 7.0mtr. Six streamer line.    
   Recording QC Frontsheet Set 5. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1027mB. Six streamer line.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4221 - 3672 4221 - 3672 1 1958  
  3671 - 3122 3671 - 3122 2 1959  
  3121 - 2931 3121 - 2931 1 1960  
Stream 2
   Shot(s) Files Deck Reel Remark
  4221 - 3672 4221 - 3672 3 1958  
  3671 - 3122 3671 - 3122 4 1959  
  3121 - 2931 3121 - 2931 3 1960  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 739, 1127, 2134 Noisy Trace(s)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Swell Noise Occ swell noise seen
ALL     ALL 369-736 Parity errors Low level parity errors observed streamer 2
ALL     ALL 1-9, 11, 369-370, 376-377, 380, 396, 758, 762, 1473-1481, 1505, 1841-1852, 1854-1857 Slope alarm > 5% of total line
4219-2932     4219-2932 ALL Slope overload  
3618     3618 ALL Gun timing error Gun 5-4 error (ms) : -1.1
3478     3478 ALL Gun timing error Gun 5-4 error (ms) : -1.1
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 02:52:32utc 20-Jun-2002