ACQUISITION REPORT Sequence-0446
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3968M446
  Preplot G01A3968
  Direction 198.0°
  SOL Date 21:26:17utc 14-May-2002
  EOL Date 23:50:05utc 14-May-2002
 Attributes:  
   Wind Force 12.0 [knots] Dir NE
   Swell Height 1.0 [meters] Dir ENE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 60.2 69.0 [meters]
   Bottomspeed  4.1 4.5 [knots]
   Featherangle port -8.3 sb +12.2 [deg]
   Cable noise 5.57 5.6 [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)   2432 - 2431  
   SOL Dummy Record(s) 2430 - 2401 2430 - 2401 21:21:51 - 21:26:08
   FSP Start of Line 2400 2400 21:26:17
   MSP      
   LSP End of Line 1399 1399 23:50:05
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1398 - 1397  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2400 - 1399 2400 - 1399 21:26:17-23:50:05 Infill 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1027mB. Low frequency strumming Str 6 channels 1841 - 1875.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2432 - 2003 2432 - 2003 1 1835  
  2002 - 1573 2002 - 1573 2 1836  
  1572 - 1398 1572 - 1398 1 1837  
Stream 2
   Shot(s) Files Deck Reel Remark
  2432 - 2003 2432 - 2003 3 1835  
  2002 - 1573 2002 - 1573 4 1836  
  1572 - 1398 1572 - 1398 3 1837  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 744, 2764 Killed traces  
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)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS Test Fails PS test
ALL     ALL 1-17, 20, 22, 369-385, 388-390, 392, 405, 1105-1113, 1115, 1123, 1125-1126, 1130-1131, 1133-1135, 1147, 1473, 1479-1490, 1493, 1495, 1508, 1841-1857, 1860-1861, 1864, 1873, 2209-2226, 2229-2232, 2577-2578, 2584-2589, 2591-2594, 2596, 2601-2604 Slope alarm > 5% of total line
2348-2331     2348-2331 419-435 Bird depth out of spec Bird C2-4
2232     2232 ALL Gun Timing Error Gun 5-2 (-1.7 ms)
1718-1709     1718-1709 51-67 Bird depth out of spec Bird C1-4
Comment
Shot(s)     File(s) Trace(s) Type Remark
1503     1503 ALL Source sequence change Source 2 fired at this shot
1502     1502 ALL Source sequence change Source 2 fired at this shot


 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 00:04:42utc 15-May-2002