ACQUISITION REPORT Sequence-0417
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3856K417
  Preplot G01A3856
  Direction 198.0°
  SOL Date 18:57:08utc 07-May-2002
  EOL Date 20:55:52utc 07-May-2002
 Attributes:  
   Wind Force 0.0 [knots] $(wind_dir)
   Swell Height 0.5 [meters] Dir S
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 60.0 65.0 [meters]
   Bottomspeed  4.5 4.8 [knots]
   Featherangle sb +1.7 sb +7.5 [deg]
   Cable noise 5.7 4.8 [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 18:53:05 - 18:57:00
   FSP Start of Line 2400 2400 18:57:08
   MSP      
   LSP End of Line 1487 1487 20:55:52
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1486 - 1485  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2400 - 1487 2400 - 1487 18:57:08-20:55:52 Infill 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1028mB. Low frequency strumming Str 6 channels 1841 - 1875. High aplitude low frequency current noise.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2432 - 2003 2432 - 2003 2 1764  
  2002 - 1573 2002 - 1573 1 1765  
  1572 - 1486 1572 - 1486 2 1766  
Stream 2
   Shot(s) Files Deck Reel Remark
  2432 - 2003 2432 - 2003 4 1764  
  2002 - 1573 2002 - 1573 4 1765  
  1572 - 1486 1572 - 1486 3 1766  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1633 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)  
ALL     ALL- 744, 2764 Killed traces  
2039-2033     2039-2033 395-411 Bird depth out of spec Bird C2-3, max depth 9.5m
2036-2032     2036-2032 419-435 Bird depth out of spec Bird C2-4, max depth 9.4m
1932-1912     1932-1912 390-427 Monowing wash Low frequency, high amplitude noise due to monowing wash
1707     1707 ALL Gun timing error Gun 2-1 error (ms) : -2.4
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS test  
ALL     ALL 1-17, 20, 22, 369-385, 390, 393, 1105-1113, 1115-1117, 1120-1126, 1129-1135, 1473, 1480-1481, 1483-1485, 1489, 1841-1857, 1860, 1862, 1864, 1873, 2209-2226, 2229, 2232, 2577-2578, 2581-2589, 2591-2592, 2602 Slope alarm > 5% of total line
2030-1955     2030-1955 ALL Streamer noise Low frequency noise dt currents
1935-1925     1935-1925 27-43 Bird depth out of spec Bird C1-3
1926-1916     1926-1916 419-435 Bird depth out of spec Bird C2-4
1874-1858     1874-1858 395-411 Bird depth out of spec Bird C2-3
1859-1848     1859-1848 51-67 Bird depth out of spec Bird C1-4
1751-1740     1751-1740 2651-2667 Bird depth out of spec Bird C8-5
1739-1728     1739-1728 2675-2691 Bird depth out of spec Bird C8-6
Comment
Shot(s)     File(s) Trace(s) Type Remark


 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 21:20:53utc 07-May-2002