ACQUISITION REPORT Sequence-0339
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4784B339
  Preplot G01A4784
  Direction 198.0°
  SOL Date 00:49:05utc 02-Apr-2002
  EOL Date 03:24:29utc 02-Apr-2002
 Attributes:  
   Wind Force 0.0 [knots] $(wind_dir)
   Swell Height 2.0 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 108.0 327.0 [meters]
   Bottomspeed  4.7 4.4 [knots]
   Featherangle sb +2.5 0.0 [deg]
   Cable noise 6.0 0.0 [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)      
   SOL Dummy Record(s) 3719 - 3644 3719 - 3644 00:30:58 - 00:41:03
   FSP Start of Line 3585 3585 00:49:05
   MSP      
   LSP End of Line 1727   03:24:29
   EOL Dummy Record(s)      
   EOL Noise Record(s)      
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3585 - 3476 3585 - 3476 00:49:05-01:04:09 Reshoot 0 Scratched All data scratch d/t streamer 6 initialization problems.
    3475 - 2452 3475 - 2452 01:04:18-03:24:29 Reshoot 16 Valid  
    2451 - 1727 2451 -   03:24:37-  Reshoot 0 Scratched No data recorded to tape d/t cable 6 initialization problems
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1028mB, pressure now 1018mB. ##LGSP 2452 SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP. **No noise test recorded to tape @ sol    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  3585 - 3158 3585 - 3158 1 1403 No noise test recorded to tape @ sol
  3157 - 2728 3157 - 2728 2 1404  
  2727 - 2447 2727 - 2447 1 1405 No noise test recorded to tape @ EOL
Stream 2
   Shot(s) Files Deck Reel Remark
  3585 - 3158 3585 - 3158 3 1403 No noise test recorded to tape @ sol
  3157 - 2728 3157 - 2728 4 1404  
  2727 - 2447 2727 - 2447 3 1405 No noise test recorded to tape @ EOL
Stream 1001
   Shot(s) Files Deck Reel Remark
  3617 - 2447 -1 - 2447 1001 0  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1476 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 2265 Spiking Channel  
ALL     ALL 1159, 2871 Noisy channels  
3471     3471 2125 Spiking Trace(s)  
3002     3002 1853 Spiking Trace(s)  
2993     2993 1965, 1981 Spiking Trace(s)  
2880     2880 2157 Spiking Trace(s)  
2682     2682 2109 Spiking Trace(s)  
2646     2646 2141 Spiking Trace(s)  
2631     2631 2045 Spiking Trace(s)  
2610     2610 1933 Spiking Trace(s)  
2508     2508 ALL Gun timing error Gun 5-4 error (ms) : 1.4
2472     2472 2045 Spiking Trace(s)  
2451     2451 ALL Seismic data parity errors Possible bubble fault
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL NONE Streamer depth Bird 6-18 running deep throughout line average 8.5 mtrs
3346     3346 ALL Gun timing error Gun 5-4 error (ms) : 1.3
3124-3122     3124-3122 ALL Seismic Interference External energy source seen approx 10uB no discernible moveout.
2784     2784 ALL Gun timing error Gun 5-4 error (ms) : 1.2
2734     2734 ALL Gun timing error Gun 5-4 error (ms) : 1.2
2574     2574 ALL Gun timing error Gun 5-4 error (ms) : 1.1
2524-2523     2524-2523 NONE Bird depth out of spec Bird C2-6
2510     2510 NONE Bird depth out of spec Bird C2-7
2486-2475     2486-2475 NONE Bird depth out of spec Bird C7-11
2481-2462     2481-2462 NONE Bird depth out of spec Bird C1-8
Comment
Shot(s)     File(s) Trace(s) Type Remark
2452     2452 NONE   Last good shotpoint, line aborted due to problems with cable 6


 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 17:00:31utc 02-Apr-2002