ACQUISITION REPORT Sequence-0453
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4112K453
  Preplot G01A4112
  Direction 198.0°
  SOL Date 20:18:25utc 18-May-2002
  EOL Date 20:57:12utc 18-May-2002
 Attributes:  
   Wind Force 12.0 [knots] Dir NW
   Swell Height 0.5 [meters] Dir NW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 62.0 68.0 [meters]
   Bottomspeed  4.4 4.5 [knots]
   Featherangle port -4.6 port -4.4 [deg]
   Cable noise 5.6 6.18 [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)   2622 - 2621  
   SOL Dummy Record(s) 2620 - 2591 2620 - 2591 20:14:16 - 20:18:16
   FSP Start of Line 2590 2590 20:18:25
   MSP      
   LSP End of Line 2310 2310 20:57:12
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2309 - 2308  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2590 - 2310 2590 - 2310 20:18:25-20:57:12 Infill 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1002mB. Low frequency strumming Str 6 channels 1841 - 1875. SP 2370 start turning to Port.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2622 - 2308 2622 - 2308 1 1851  
Stream 2
   Shot(s) Files Deck Reel Remark
  2622 - 2308 2622 - 2308 4 1851  

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- 377, 744, 2764 Killed traces  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 Fails PS Fails PS
ALL     ALL 1-5 Bird depth out of spec Bird C1-1 occasional depth 8.2-8.5m - faulty cal settings
ALL     ALL 1-18, 20, 22-24, 1105-1126, 1128-1135, 1137, 1144, 1147, 1473, 1480-1481, 1483-1485, 1487, 1489, 1495, 1508, 1841-1857, 1860-1865, 1877, 2209-2227, 2229-2232, 2236-2237, 2239, 2577, 2582, 2584-2592, 2601-2602 Slope alarm > 5% of total line
Comment
Shot(s)     File(s) Trace(s) Type Remark
2370     2370 ALL   SP start turning to Port


 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 08:02:51utc 25-May-2002