ACQUISITION REPORT Sequence-0429
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4128C429
  Preplot G01A4128
  Direction 18.0°
  SOL Date 17:41:00utc 11-May-2002
  EOL Date 19:23:23utc 11-May-2002
 Attributes:  
   Wind Force 20.0 [knots] Dir NE
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 62.0 54.0 [meters]
   Bottomspeed  4.5 4.8 [knots]
   Featherangle sb +10.8 sb +2.6 [deg]
   Cable noise 5.6 27.9 [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 -520.0 350.0 -7.0 4600 Nessie-3 12.5 368 0001-0368
2 STBD -520.0 250.0 -7.0 4600 Nessie-3 12.5 368 0369-0736
3 STBD -520.0 150.0 -7.0 4600 Nessie-3 12.5 368 0737-1104
4 STBD -520.0 50.0 -7.0 4600 Nessie-3 12.5 368 1105-1472
5 PORT -520.0 -50.0 -7.0 4600 Nessie-3 12.5 368 1473-1840
6 PORT -520.0 -150.0 -7.0 4600 Nessie-3 12.5 368 1841-2208
7 PORT -520.0 -250.0 -7.0 4600 Nessie-3 12.5 368 2209-2576
8 PORT -520.0 -350.0 -7.0 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)   2559 - 2560  
   SOL Dummy Record(s) 2561 - 2590 2561 - 2590 17:37:19 - 17:41:08
   FSP Start of Line 2591 2591 17:41:00
   MSP      
   LSP End of Line 3375 3375 19:23:23
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4299 - 4300  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2591 - 3375 2591 - 3375 17:41:16-19:23:23 Prime 16 Valid Line aborted dt rig obstruction
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1022mB. Low frequency strumming Str 6 channels 1841 - 1875. Side swipes present at record. Turn noise at EOL and EOL noise records.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2559 - 2988 2559 - 2988 2 1801  
  2989 - 4300 2989 - 4300 1 1802  
Stream 2
   Shot(s) Files Deck Reel Remark
  2559 - 2988 2559 - 2988 4 1801  
  2989 - 4300 2989 - 4300 4 1802  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1633, 2782 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 337, 349, 1553, 791 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL- 744, 2764 Killed traces  
3320     3320 ALL Gun timing error Gun 5-2 error (ms) : -2.2
3320-3375     3320-3375 1841-1946 Streamer noise Turn noise dt rig
3333-3375     3333-3375 1473-1561 Streamer noise Turn noise dt rig
3335-3375     3335-3375 1105-1199 Streamer noise Turn noise dt rig
3337-3375     3337-3375 737-820 Streamer noise Turn noise dt rig
3337-3375     3337-3375 2209-2304 Streamer noise Turn noise dt rig
3339-3375     3339-3375 2577-2678 Streamer noise Turn noise dt rig
3343-3375     3343-3375 369-458 Streamer noise Turn noise dt rig
3346-3375     3346-3375 1-83 Streamer noise Turn noise dt rig
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS test Fails PS test
ALL     ALL 1-17, 20, 22-23, 369-385, 389-390, 393, 1105-1117, 1119-1126, 1128-1135, 1137-1138, 1147, 1473-1474, 1476-1489, 1493, 1495, 1508, 1841-1857, 1860, 1862-1864, 1866-1867, 1873, 1875, 2209-2226, 2229-2232, 2577-2578, 2581-2593, 2602 Slope alarm > 5% of total line
2682     2682 ALL Gun timing error Gun 5-2 error (ms) : -1.8
2728     2728 ALL Gun timing error Gun 5-2 error (ms) : -1.8
2805-2826     2805-2826 2651-2667 Bird depth out of spec Bird C8-5
2806-2813     2806-2813 2627-2643 Bird depth out of spec Bird C8-4
2813-2827     2813-2827 2259-2275 Bird depth out of spec Bird C7-4
2971     2971 ALL Gun timing error Gun 2-3 error (ms) : -1.2
2975     2975 ALL Gun timing error Gun 2-3 error (ms) : -1.1
3024-3037     3024-3037 2627-2643 Bird depth out of spec Bird C8-4
3027-3041     3027-3041 2259-2275 Bird depth out of spec Bird C7-4
3336     3336 ALL Gun timing error Gun 5-2 error (ms) : -1.7
Comment
Shot(s)     File(s) Trace(s) Type Remark
3279     3279 ALL Line information Start turning for rig


 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 00:59:40utc 12-May-2002