ACQUISITION REPORT Sequence-0875
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170C
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A7176PFL875
  Preplot G01A7176FL
  Direction 108.0°
  SOL Date 15:48:01utc 03-Jun-2002
  EOL Date 16:19:02utc 03-Jun-2002
 Attributes:  
   Wind Force 8.0 [knots] Dir WSW
   Swell Height 1.5 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 95 [avg]  
       
  SOL EOL  
   Waterdepth 83.0 117.0 [meters]
   Bottomspeed  4.7 4.6 [knots]
   Featherangle port -7.0 port -3.2 [deg]
   Cable noise 5.5 5.06 [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 8
2 PORT -345.0 -25.0 -6.0 3542.0 3 8

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)   1892 - 1891  
   SOL Dummy Record(s) 1890 - 1881 1890 - 1881 15:46:45 - 15:47:53
   FSP Start of Line 1880 1880 15:48:01
   MSP      
   LSP End of Line 1640 1640 16:19:02
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1639 - 1638  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1880 - 1640 1880 - 1640 15:48:01-16:19:02 Infill 14 Valid  
 Remarks:      
   Navigation Streamer depth 7.0mtr    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1036mB. Low frequency strumming Str 6 channels 1841 - 1875.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1892 - 1638 1892 - 1638 1 10082  
Stream 2
   Shot(s) Files Deck Reel Remark
  1892 - 1638 1892 - 1638 3 10082  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2577-2944 Killed traces Cable #8
ALL     ALL 337, 1545, 2446 Spiking Trace(s)  
ALL     ALL 1857, 2943 Noisy Trace(s)  
ALL     ALL 1-5 Streamer depth Streamer depth out of spec, 12 m. Bird C1-1
1891-1638       353, 377, 744, 2446 Killed traces  
1850     1850 530-531 Strike noise streamer strike noise 14.5uB
1697     1697 287 Spiking Trace(s)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL NONE No bird comms Birds C4-2 C8-18
ALL     ALL 2577-2944   Cable #8 not used due to config problem.


 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 16:39:43utc 03-Jun-2002