ACQUISITION REPORT Sequence-0224
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A1152A224
  Preplot G01A1152
  Direction 18.0°
  SOL Date 19:35:36utc 23-Jan-2002
  EOL Date 22:40:06utc 23-Jan-2002
 Attributes:  
   Wind Force 5.0 [knots] Dir SE
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 33.0 16.0 [meters]
   Bottomspeed  4.5 4.5 [knots]
   Featherangle port -2.1 port -9.1 [deg]
   Cable noise 5.22 5.5 [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)   1007 - 1008  
   SOL Dummy Record(s) 1009 - 1018 1009 - 1018 19:34:15 - 19:35:27
   FSP Start of Line 1019 1019 19:35:36
   MSP      
   LSP End of Line 2371 2371 22:40:06
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2372 - 2373  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1019 - 2371 1019 - 2371 19:35:36-22:40:06 Prime 14 Valid STR 1 NTBP d/t poor comms. with the birds
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1025mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STR 1 is not used d/t poor comms. with birds. Strong ground roll present during the line and wrapping aroung to the next shot.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1007 - 1436 1007 - 1436 1 928  
  1437 - 1866 1437 - 1866 2 929  
  1867 - 2296 1867 - 2296 1 930  
  2297 - 2373 2297 - 2373 2 931  
Stream 2
   Shot(s) Files Deck Reel Remark
  1007 - 1436 1007 - 1436 3 928  
  1437 - 1866 1437 - 1866 4 929  
  1867 - 2296 1867 - 2296 3 930  
  2297 - 2373 2297 - 2373 4 931  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1255 Noisy Trace(s)  
ALL     ALL 1-368   STR 1 NTBP d/t bad comms. with birds, power line leakage
1008-2372       1255 Killed traces  
2354     2354 ALL Gun timing error Gun 5-4 error (ms) : -1.1
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2034 Fails crossfeed test  
ALL     ALL ALL Streamer noise Strong Groundroll present during the line.
1666     1666 ALL Streamer noise Very strong groundroll visible on records.
1792     1792 ALL Gun timing error Gun 5-4 error (ms) : -1.7
Comment
Shot(s)     File(s) Trace(s) Type Remark
2280     2280 ALL Turning Start to turn to STBD side.


 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 22:55:04utc 23-Jan-2002