ACQUISITION REPORT Sequence-0343
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4736A343
  Preplot G01A4736
  Direction 198.0°
  SOL Date 11:36:40utc 03-Apr-2002
  EOL Date 14:28:40utc 03-Apr-2002
 Attributes:  
   Wind Force 15.0 [knots] Dir SW
   Swell Height 1.5 [meters] Dir W
   Propellor rpm 122 [avg]  
   Propellor pitch 99 [avg]  
       
  SOL EOL  
   Waterdepth 67.0 136.0 [meters]
   Bottomspeed  4.8 4.0 [knots]
   Featherangle sb +7.2 port -9.1 [deg]
   Cable noise 5.22 23.9 [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
0 STBD -345.0 25.0 -6.0 0.0 0 0
0 STBD -345.0 -25.0 -6.0 0.0 0 0

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)   4216 - 4215  
   SOL Dummy Record(s) 4214 - 4205 4214 - 4205 11:35:24 - 11:36:32
   FSP Start of Line 4204 4204 11:36:40
   MSP      
   LSP End of Line 2950 2950 14:28:40
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2949 - 2949  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4204 - 3700 4204 - 3700 11:36:40-12:42:07 Prime 16 Valid
    3699 - 2950 3699 - 2950 12:42:15-14:28:40 Prime 0 Scratched All data scratch d/t swell noise
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1015mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4216 - 3787 4216 - 3787 1 1418  
  3786 - 3357 3786 - 3357 2 1419  
  3356 - 2950 3356 - 2950 1 1420  
Stream 2
   Shot(s) Files Deck Reel Remark
  4216 - 3787 4216 - 3787 3 1418  
  3786 - 3357 3786 - 3357 4 1419  
  3356 - 2950 3356 - 2950 3 1420  

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, 1801, 1553 Spiking Trace(s)  
ALL     ALL 1159, 2871, 305 Noisy Trace(s)  
4142-4141     4142-4141 2140, 2156, 2172, 2188, 2204 Parity errors  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-13, 16, 369-380, 738, 744-748, 751-752, 755, 760, 764, 1105, 1126, 1130, 1134-1135, 1841-1853, 1856, 1867, 1873, 2209-2220, 2222-2226, 2229, 2232, 2577, 2585-2588 Slope alarm > 5% of total line
ALL     ALL 338-345 Noisy channels Channels observed to be slightly noisy
4001-3963     4001-3963 NONE Bird depth out of spec Bird C2-13
Comment
Shot(s)     File(s) Trace(s) Type Remark
3700     3700 NONE LGSP Last good sp of line d/t swell noise


 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 14:54:27utc 03-Apr-2002