ACQUISITION REPORT Sequence-0494
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 6 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3984N494
  Preplot G01A3984
  Direction 18.0°
  SOL Date 02:18:21utc 02-Jul-2002
  EOL Date 02:48:27utc 02-Jul-2002
 Attributes:  
   Wind Force 20.0 [knots] Dir SW
   Swell Height 2.0 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 84 [avg]  
       
  SOL EOL  
   Waterdepth 64.0 64.0 [meters]
   Bottomspeed  4.5 4.7 [knots]
   Featherangle sb +3.9 sb +3.8 [deg]
   Cable noise 5.4 9.9 [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)   1553 - 1554  
   SOL Dummy Record(s) 1555 - 1584 1555 - 1584 02:14:20 - 02:18:13
   FSP Start of Line 1585 1585 02:18:21
   MSP      
   LSP End of Line 1800 1800 02:48:27
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4293 - 4294  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1585 - 1800 1585 - 1800 02:18:21-02:48:27 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 1018mB. Using Six streamer. Bird C6-11 No Comms. SP 1745 start turning to Port. SP 1780-1800, the firts 60 traces on each streamer NTBP d/t Turn noise    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1553 - 4294 1553 - 4294 2 1979  
Stream 2
   Shot(s) Files Deck Reel Remark
  1553 - 4294 1553 - 4294 3 1979  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2134, 2067, 2185 Noisy Trace(s)  
1780-1800     1780-1800 1-60 Streamer noise Turn noise d/t Rig
1780-1800     1780-1800 369-429 Streamer noise Turn noise d/t Rig
1780-1800     1780-1800 737-797 Streamer noise Turn noise d/t Rig
1780-1800     1780-1800 1105-1165 Streamer noise Turn noise d/t Rig
1780-1800     1780-1800 1473-1533 Streamer noise Turn noise d/t Rig
1780-1800     1780-1800 1841-1901 Streamer noise Turn noise d/t Rig
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1127, 379, 1895, 2183-2184 Noisy Trace(s)  
1700     1700 ALL Gun Timing Error Gun 5-4 : -1.1( ms)
1782-1793     1782-1793 27-43 Bird depth out of spec Bird C1-3
Comment
Shot(s)     File(s) Trace(s) Type Remark
1745     1745 ALL   Start Turning to Port


 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 13:22:24utc 02-Jul-2002