ACQUISITION REPORT Sequence-0474
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4848K474
  Preplot G01A4848
  Direction 198.0°
  SOL Date 17:16:25utc 06-Jun-2002
  EOL Date 19:18:54utc 06-Jun-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir NNE
   Swell Height 1.5 [meters] Dir S
   Propellor rpm 122 [avg]  
   Propellor pitch 97 [avg]  
       
  SOL EOL  
   Waterdepth 74.0 119.0 [meters]
   Bottomspeed  4.6 4.5 [knots]
   Featherangle sb +3.1 port -7.0 [deg]
   Cable noise 5.0 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)   4220 - 4219  
   SOL Dummy Record(s) 4218 - 4209 4218 - 4209 17:15:08 - 17:16:18
   FSP Start of Line 4208 4208 17:16:25
   MSP      
   LSP End of Line 3249 3249 19:18:54
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1752 - 1751  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4208 - 3291 4208 - 3291 17:16:25-19:13:16 Infill 14 Valid Streamer 8 NTBP
    3290 - 3249 3290 - 3249 19:13:24-19:18:54 Infill 0 Scratched line stopped d/t link failure Gun array 2
 Remarks:      
   Navigation Streamer depth 7.0m, STBD GUNS FIRING ON EVEN SP'S.    
   Recording QC ###Line shot using streamers 1-7 only###. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1018mB, pressure now 10mB. Low frequency strumming Str 6 channels 1841 - 1875. LGSP 3291 d/t link failure gun array 1 string 2.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4220 - 3791 4220 - 3791 1 1933  
  3790 - 3361 3790 - 3361 2 1934  
  3360 - 1751 3360 - 1751 1 1935 LSP recorded 3249
Stream 2
   Shot(s) Files Deck Reel Remark
  4220 - 3791 4220 - 3791 3 1933  
  3790 - 3361 3790 - 3361 4 1934  
  3360 - 1751 3360 - 1751 3 1935 LSP recorded 3249

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-5 Streamer depth Bird C1-1 out of spec deep at 13.0mtr Incorrect reading
ALL     ALL 1553 Spiking Trace(s)  
ALL     ALL 304, 1857 Noisy Trace(s)  
ALL     ALL 377, 744, 2446 Killed Traces  
ALL     ALL 2577-2944 Killed Traces Streamer 8 NTBP.
Warning
Shot(s)     File(s) Trace(s) Type Remark
4156-4146     4156-4146 NONE Bird depth out of spec Bird C2-11
3548-3537     3548-3537 NONE Bird depth out of spec Bird C7-4
3382-3362     3382-3362 NONE Bird depth out of spec Bird C2-11
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL NONE No bird comms Birds C1-4 C4-2
3291     3291 ALL   Last good shotpoint due to link failure gun array 2


 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 20:31:52utc 12-Jun-2002