ACQUISITION REPORT Sequence-0208
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A1504A208
  Preplot G01A1504
  Direction 198.0°
  SOL Date 16:41:41utc 19-Jan-2002
  EOL Date 20:26:19utc 19-Jan-2002
 Attributes:  
   Wind Force 8.0 [knots] Dir W
   Swell Height 2.0 [meters] Dir E
   Propellor rpm 122 [avg]  
   Propellor pitch 93 [avg]  
       
  SOL EOL  
   Waterdepth 25.5 39.0 [meters]
   Bottomspeed  4.7 4.4 [knots]
   Featherangle sb +2.8 port -2.8 [deg]
   Cable noise 5.31 5.4 [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)   2699 - 2698  
   SOL Dummy Record(s) 2697 - 2688 2697 - 2688 16:40:25 - 16:41:34
   FSP Start of Line 2687 2687 16:41:41
   MSP      
   LSP End of Line 942 942 20:26:19
   EOL Dummy Record(s)      
   EOL Noise Record(s)   941 - 941  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2687 - 942 2687 - 942 16:41:41-20:26:19 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1013mB, pressure now 1018mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. All gun DI's slightly erratic d/t swell. Occ swell noise seen on all cables approx., Only one noise record at the end of line.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2699 - 2270 2699 - 2270 1 856  
  2269 - 1840 2269 - 1840 2 857  
  1839 - 1410 1839 - 1410 1 858  
  1409 - 980 1409 - 980 2 859  
  979 - 941 979 - 941 1 860  
Stream 2
   Shot(s) Files Deck Reel Remark
  2699 - 2270 2699 - 2270 3 856  
  2269 - 1840 2269 - 1840 3 857  
  1839 - 1410 1839 - 1410 4 858  
  1409 - 980 1409 - 980 3 859  
  979 - 941 979 - 941 4 860  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 172, 2307 Noisy Traces Noisy traces
ALL     ALL-943 1255 Killed traces  
ALL     ALL-943 1853 Killed traces  
ALL     ALL 2641 Spiking  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2034 Fails crossfeed test Fails crossfeed test
2687-2294     2687-2294 ALL Streamer noise Strong ground roll noise present on records.
2561     2561 ALL Gun timing error Gun 3-5 error (ms) : 1.1
2529     2529 ALL Gun timing error Gun 3-5 error (ms) : -1.1
2449     2449 ALL Gun timing error Gun 1-2 error (ms) : -1.6
2294     2294 ALL Streamer noise  
1819     1819 ALL Gun timing error Gun 3-5 error (ms) : -1.1
1787     1787 ALL Gun timing error Gun 3-5 error (ms) : 1.1
1529     1529 ALL Gun timing error Gun 3-5 error (ms) : 1.1
1257     1257 ALL Gun timing error Gun 3-5 error (ms) : -1.1
Comment
Shot(s)     File(s) Trace(s) Type Remark
2561-2341     2561-2341 ALL Streamer noise Wrap around noise from previous shot visible on mid traces.


 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 10:21:38utc 20-Jan-2002