ACQUISITION REPORT Sequence-0334
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4640A334
  Preplot G01A4640
  Direction 18.0°
  SOL Date 02:56:55utc 27-Mar-2002
  EOL Date 08:55:49utc 27-Mar-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir SW
   Swell Height 1.5 [meters] Dir NE
   Propellor rpm 122 [avg]  
   Propellor pitch 95 [avg]  
       
  SOL EOL  
   Waterdepth 228.0 58.0 [meters]
   Bottomspeed  4.5 4.0 [knots]
   Featherangle sb +7.5 port -5.3 [deg]
   Cable noise 4.66 3.53 [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)   1777 - 1778  
   SOL Dummy Record(s) 1779 - 1788 1779 - 1788 02:55:35 - 02:56:47
   FSP Start of Line 1789 1789 02:56:55
   MSP      
   LSP End of Line 4320 4320 08:55:49
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4321 - 4322  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1789 - 3940 1789 - 3940 02:56:55-07:59:26 Prime 16 Valid  
    3941 - 3994   -    -  Prime 0 Scratched  
    3995 - 4320 3995 - 4320 08:07:28-08:55:49 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1015mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP. ### SP's 3765-3940 cable 5 NTBP D/T leakage spikes ###SP's 3941-3994 Stop recording to repair streamer 5 & Initialize all streamers    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1777 - 2206 1777 - 2206 1 1380  
  2207 - 2636 2207 - 2636 2 1381  
  2637 - 3066 2637 - 3066 1 1382  
  3067 - 3496 3067 - 3496 1 1383  
  3497 - 3926 3497 - 3926 2 1384  
  3927 - 3940 3927 - 3940 1 1385  
  3995 - 4322 3995 - 4322 1 1386  
Stream 2
   Shot(s) Files Deck Reel Remark
  1777 - 2206 1777 - 2206 3 1380  
  2207 - 2636 2207 - 2636 4 1381  
  2637 - 3066 2637 - 3066 3 1382  
  3067 - 3496 3067 - 3496 4 1383  
  3497 - 3926 3497 - 3926 3 1384  
  3927 - 3940 3927 - 3940 4 1385  
  3995 - 4322 3995 - 4322 3 1386  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2265 Spiking Trace(s)  
ALL     ALL 1159 Noisy Trace(s)  
1791-1799     1791-1799 438-464 Bird depth out of spec Bird C2-5
1799-1804     1799-1804 463-487 Bird depth out of spec Bird C2-6
2266     2266 ALL Seismic Interference Possible rig noise ~20 - 30µB from ahead
2291     2291 ALL Seismic Interference Possible rig noise ~20 - 30µB from ahead
2297     2297 ALL Seismic Interference Possible rig noise ~20 - 30µB from ahead
2308     2308 ALL Seismic Interference Possible rig noise ~20 - 30µB from ahead
2912-2925     2912-2925 438-464 Bird depth out of spec Bird C2-5
2944-2952     2944-2952 415-439 Bird depth out of spec Bird C2-4
3765-3940     3765-3940 1473-1840 Streamer Earth Leakage Streamer 5 NTBP, D/T leakage spikes.
3941-3994       ALL Streamer Earth Leakage Stop recording to repair streamer 5 & Initialize all streamers
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL NONE   Monowing wash effecting cable 1 and 2 front bird depths
1808-1829     1808-1829 438-464 Bird depth out of spec Bird C2-5
1814-1827     1814-1827 463-487 Bird depth out of spec Bird C2-6
1978-1989     1978-1989 2255-2279 Bird depth out of spec Bird C7-4
2255     2255 ALL Seismic Interference Possible rig noise ~20 - 30µB from ahead
2287     2287 ALL Seismic Interference Possible rig noise ~20 - 30µB from ahead
2303     2303 ALL Seismic Interference Possible rig noise ~20 - 30µB from ahead
2309     2309 ALL Seismic Interference Possible rig noise ~20 - 30µB from ahead
2443-2465     2443-2465 438-464 Bird depth out of spec Bird C2-5
2534     2534 ALL Seismic Interference Possible rig noise ~8- 10µB from ahead
2556     2556 ALL Seismic Interference Possible rig noise ~8- 10µB from ahead
2786-2810     2786-2810 438-464 Bird depth out of spec Bird C2-5
2897     2897 ALL Gun timing error Gun 1-2 error (ms) : -1.6
2898-2911     2898-2911 438-464 Bird depth out of spec Bird C2-5
2938-2951     2938-2951 463-487 Bird depth out of spec Bird C2-6
3466-3479     3466-3479 2254-2279 Bird depth out of spec Bird C7-4
3486-3495     3486-3495 2254-2279 Bird depth out of spec Bird C7-4
4181     4181 ALL Seismic Interference Possible rig noise ~8- 10µB
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 12:25:20utc 27-Mar-2002