ACQUISITION REPORT Sequence-0438
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3984L438
  Preplot G01A3984
  Direction 198.0°
  SOL Date 07:33:02utc 13-May-2002
  EOL Date 09:00:52utc 13-May-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir SW
   Swell Height 1.5 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 60.0 62.0 [meters]
   Bottomspeed  4.4 3.8 [knots]
   Featherangle sb +7.6 port -8.3 [deg]
   Cable noise 5.8 23.3 [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)   2547 - 2546  
   SOL Dummy Record(s) 2545 - 2516 2545 - 2516 07:28:55 - 07:32:53
   FSP Start of Line 2515 2515 07:33:02
   MSP      
   LSP End of Line 1930 1930 09:00:52
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1404 - 1403  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2515 - 1930 2515 - 1930 07:33:02-09:00:52 Infill 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1025mB. Low frequency strumming Str 6 channels 1841 - 1875.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2547 - 2118 2547 - 2118 2 1818  
  2117 - 1403 2117 - 1403 1 1819  
Stream 2
   Shot(s) Files Deck Reel Remark
  2547 - 2118 2547 - 2118 4 1818  
  2117 - 1403 2117 - 1403 3 1819  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1663, 2782 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 337, 349, 791, 1553 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL 744, 2764 Killed Trace(s)  
2446-2440     2446-2440 2675-2691 Bird depth out of spec Bird C8-6, max depth 9.3m
2444-2432     2444-2432 2259-2275 Bird depth out of spec Bird C7-4, max depth 9.7m
2440-2431     2440-2431 2283-2299 Bird depth out of spec Bird C7-5, max depth 9.3m
2113-2107     2113-2107 2577-2581 Seismic data parity errors Possible bubble fault
2049-2037     2049-2037 51-67 Bird depth out of spec Bird C1-4, Max depth 9.6m
1961-1930     1961-1930 1-90 Streamer noise Low frequency noise dt turn
1961-1930     1961-1930 369-459 Streamer noise Low frequency noise dt turn
1961-1930     1961-1930 737-827 Streamer noise Low frequency noise dt turn
1961-1930     1961-1930 1105-1195 Streamer noise Low frequency noise dt turn
1961-1930     1961-1930 1473-1562 Streamer noise Low frequency noise dt turn
1961-1930     1961-1930 1841-1931 Streamer noise Low frequency noise dt turn
1961-1930     1961-1930 2209-2299 Streamer noise Low frequency noise dt turn
1961-1930     1961-1930 2577-2667 Streamer noise Low frequency noise dt turn
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS Test Fails PS test
2486-2466     2486-2466 NONE Bird depth out of spec Bird C8-5
2482     2482 ALL Gun Timing Error Gun 5-2 (-1.6 ms)
2475-2450     2475-2450 2675-2691 Bird depth out of spec Bird C8-6
2453-2440     2453-2440 2651-2667 Bird depth out of spec Bird C8-5
2439-2420     2439-2420 2675-2691 Bird depth out of spec Bird C8-6
2407-2397     2407-2397 2627-2643 Bird depth out of spec Bird C8-4
2242     2242 ALL Gun timing error Gun 5-2 error (ms) : -1.7
Comment
Shot(s)     File(s) Trace(s) Type Remark
1992     1992 ALL Line Information STBD turn to avoid rig


 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 13:45:56utc 13-May-2002