ACQUISITION REPORT Sequence-0478
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4864J478
  Preplot G01A4864
  Direction 0.0°
  SOL Date 15:32:00utc 16-Jun-2002
  EOL Date 16:21:53utc 16-Jun-2002
 Attributes:  
   Wind Force 12.0 [knots] Dir SSW
   Swell Height 1.5 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 92 [avg]  
       
  SOL EOL  
   Waterdepth 75.0 96.0 [meters]
   Bottomspeed  4.5 4.5 [knots]
   Featherangle port -3.8 sb +1.7 [deg]
   Cable noise 12.2 18.4 [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
0 STBD -520.0 -250.0 -7.0 0   0.0 0 0000-0000
0 STBD -520.0 -350.0 -7.0 0   0.0 0 0000-0000

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

Production
  Shotpoint File Time [utc]
   SOL Noise Record(s)   4221 - 4220  
   SOL Dummy Record(s)      
   FSP Start of Line 4219 4219 15:32:00
   MSP      
   LSP End of Line 3845 3845 16:21:53
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3844 - 3844  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4219 - 3845 4219 - 3845 15:32:00-16:21:53 Infill 0 Scratched All data scratch d/t swell noise
 Remarks:      
   Navigation Streamer Depth 7.0 mtr. Six streamer Line. All data scratch d/t swell noise    
   Recording QC Frontsheet Set 5. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1008mB. Six streamer line.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4221 - 3845 4221 - 3845 1 1948  
Stream 2
   Shot(s) Files Deck Reel Remark
  4221 - 3845 4221 - 3845 3 1948  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Swell Noise Swell noise seen on all cables approx 15-20%
ALL     ALL NONE Source Depth All gun DI'd erratic d/t swell
ALL     ALL 1-13, 17, 22, 25, 37, 369-371, 373-385, 387-393, 395-396, 402, 758, 760, 762-763, 766-767, 1121, 1473-1484, 1487, 1495, 1499, 1505, 1841-1852, 1854-1858, 1861, 1863-1864 Slope alarm > 5% of total line
4011     4011 ALL Gun timing error Gun 2-1 error (ms) : -1.6
3691-3867     3867 ALL Missing ShotPoint Missing shotpoints due to lost closure
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 23:55:40utc 28-Jun-2002