ACQUISITION REPORT Sequence-0238
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A1280A238
  Preplot G01A1280
  Direction 198.0°
  SOL Date 03:19:58utc 28-Jan-2002
  EOL Date 07:42:56utc 28-Jan-2002
 Attributes:  
   Wind Force 20.0 [knots] Dir SW
   Swell Height 2.5 [meters] Dir E
   Propellor rpm 122 [avg]  
   Propellor pitch 95 [avg]  
       
  SOL EOL  
   Waterdepth 23.0 35.0 [meters]
   Bottomspeed  3.5 4.2 [knots]
   Featherangle port -5.4 sb +3.4 [deg]
   Cable noise 5.7 6.5 [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)      
   FSP Start of Line 2454   03:19:58
   MSP      
   LSP End of Line 915 915 07:42:56
   EOL Dummy Record(s) 914 - 914 914 - 914 07:42:56 - 07:42:56
   EOL Noise Record(s)      
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2454 - 2351   -    -  Prime 0 Scratched No data recorded d/t gun autofire array 4 gun 4
    2350 - 2349 2350 - 2349 03:40:37-03:40:49 Prime 0 Scratched NTBP
    2348 - 2294   -    -  Prime 0 Scratched No data recorded
    2293 - 2285 2293 - 2285 03:51:10-03:52:42 Prime 0 Scratched NTBP - compressor tripped out
    2284 - 2005   -    -  Prime 0 Scratched No data recorded
    2004 - 1982 2004 - 1982 04:46:20-04:50:07 Prime 0 Scratched NTBP - guns tuning in
    1981 - 915 1981 - 915 04:50:17-07:42:47 Prime 14 Valid  
 Remarks:      
   Navigation Streamer depth at 7m    
   Recording QC ### FGSP 1981 D/T GUN 4-4 AUTOFIRE. ### STREAMER 1 (1-368) NTBP D/T E/L. Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1012mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2352 - 1588 2352 - 1588 1 977  
  1587 - 1158 1587 - 1158 2 978  
  1157 - 915 1157 - 915 1 979  
Stream 2
   Shot(s) Files Deck Reel Remark
  2352 - 1588 2352 - 1588 3 977  
  1587 - 1158 1587 - 1158 4 978  
  1157 - 915 1157 - 915 3 979  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL-915 1255 Killed traces  
ALL     ALL-915 1855 Killed traces  
ALL     ALL 1495 Noisy Trace  
ALL     ALL 1-368 Parity Errors All streamer 1 NTBP d/t parity errors
2454-1982     1982 ALL Gun Autofire All sp's NTBP d/t gun 4-4 Autofire, guns picked up
1648     1648 ALL Gun timing error Gun 5-2 error (ms) : 2.3
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 369-380, 737-752, 1105-1113, 1126, 1473-1485, 1487, 1489, 2209-2233, 2235-2236, 2239, 2243, 2577, 2584-2589, 2591-2593, 2601-2609, 2614, 2617, 2629 Slope alarm > 5% of total line
1976     1976 ALL Gun timing error Gun 5-4 error (ms) : -1.2
1963     1963 ALL Gun timing error Gun 1-5 error (ms) : 1.1
1817-1713     1817-1713 NONE Bird depth out of spec Bird C3-14 erratic DI max reading 11 mtrs
1752     1752 ALL Gun timing error Gun 5-4 error (ms) : 1.1
1744-1707     1744-1707 NONE Bird depth out of spec Bird C3-15 shallow min 5.7 mtrs
1712-1704     1712-1704 NONE Bird depth out of spec Bird C3-14 DI reading erratic, minimum reading 4.9 mtrs
1712     1712 NONE Bad DI Bird 3-14, erratic DI jumps 4.6 mtrs this sp
1358     1358 ALL Gun timing error Gun 5-4 error (ms) : 1.1
1256     1256 ALL Gun timing error Gun 4-2 error (ms) : -1.6
1254     1254 ALL Gun timing error Gun 4-2 error (ms) : -1.8
1252     1252 ALL Gun timing error Gun 4-2 error (ms) : -1.7
1022     1022 ALL Gun timing error Gun 5-4 error (ms) : 1.1
Comment
Shot(s)     File(s) Trace(s) Type Remark
1981     1981 NONE FGSP First good sp of line d/t gun 4-4 autofire


 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 15:10:34utc 28-Jan-2002