ACQUISITION REPORT Sequence-0291
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4224A291
  Preplot G01A4224
  Direction 198.0°
  SOL Date 21:54:34utc 18-Feb-2002
  EOL Date 03:52:26utc 19-Feb-2002
 Attributes:  
   Wind Force 10.0 [knots] $(wind_dir)
   Swell Height 2.0 [meters] Dir E
   Propellor rpm 122 [avg]  
   Propellor pitch 90 [avg]  
       
  SOL EOL  
   Waterdepth 46.0 75.0 [meters]
   Bottomspeed  4.4 4.3 [knots]
   Featherangle sb +5.5 sb +6.5 [deg]
   Cable noise 5.9 10.6 [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)   4214 - 4213  
   SOL Dummy Record(s) 4212 - 4183 4212 - 4183 21:50:22 - 21:54:25
   FSP Start of Line 4182 4182 21:54:34
   MSP 3237 3237 23:59:53
   LSP End of Line 1502 1502 03:52:26
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1501 - 1500  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4182 - 1502 4182 - 1502 21:54:34-03:52:26 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m. NAVRT External Header Block defines Job No. 9170B    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1026mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded.STB Guns firing on ODD SP.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4214 - 3785 4214 - 3785 2 1175  
  3784 - 3355 3784 - 3355 1 1176  
  3354 - 2925 3354 - 2925 2 1177  
  2924 - 2495 2924 - 2495 1 1178  
  2494 - 2065 2494 - 2065 2 1179  
  2064 - 1635 2064 - 1635 1 1180  
  1634 - 1500 1634 - 1500 2 1181  
Stream 2
   Shot(s) Files Deck Reel Remark
  4214 - 3785 4214 - 3785 3 1175  
  3784 - 3355 3784 - 3355 3 1176  
  3354 - 2925 3354 - 2925 4 1177  
  2924 - 2495 2924 - 2495 3 1178  
  2494 - 2065 2494 - 2065 4 1179  
  2064 - 1635 2064 - 1635 3 1180  
  1634 - 1500 1634 - 1500 4 1181  
Stream 1001
   Shot(s) Files Deck Reel Remark
  4833 - 1482 -1 - 1498 1001 0  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1476, 1633 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 109, 1657, 2641 Spiking Trace(s)  
ALL     ALL 1495 Noisy Trace(s)  
3613     3613 ALL Gun timing error Gun 1-2 error (ms) : -2.4
2876-2871     2876-2871 51-67 Bird depth out of spec Bird C1-4, max depth 9.4m
2876-2864     2876-2864 75-91 Bird depth out of spec Bird C1-5, max depth 9.9m
2874-2864     2874-2864 99-115 Bird depth out of spec Bird C1-6, max depth 9.6m
2863-2859     2863-2859 467-483 Bird depth out of spec Bird C2-6, max depth 9.4m
2767-2755     2767-2755 51-67 Bird depth out of spec Bird C1-4, max depth 9.4m
2767-2754     2767-2754 419-435 Bird depth out of spec Bird C2-4, max depth 9.9m
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2034 Crossfeed Occasionally fails crossfeed
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1 Occasionally deep 8.1 - 8.4m
ALL     ALL 1-17, 369-383, 390, 737-758, 760-761, 763-764, 1105-1116, 1121-1126, 1128-1135, 1138, 1147, 1473-1475, 1477-1489, 1495, 1841-1868, 1873, 2209-2226, 2229-2230, 2232, 2577, 2584-2589, 2591-2593, 2601-2602 Slope alarm > 5% of total line
3720     3720 ALL Gun timing error Gun 5-4 error (ms) : -1.2
3632     3632 ALL Gun timing error Gun 5-4 error (ms) : -1.1
3164     3164 ALL Gun timing error Gun 5-4 error (ms) : -1.1
2863-2845     2863-2845 491-507 Bird depth out of spec Bird C2-7
2834-2820     2834-2820 443-459 Bird depth out of spec Bird C2-5
2831-2819     2831-2819 51-67 Bird depth out of spec Bird C1-4
2768-2758     2768-2758 395-411 Bird depth out of spec Bird C2-3
2521-2510     2521-2510 99-115 Bird depth out of spec Bird C1-6
2399     2399 ALL Gun timing error Gun 1-2 error (ms) : -2.0
2292     2292 ALL Gun timing error Gun 5-4 error (ms) : -1.1
2264     2264 ALL Gun timing error Gun 4-8 error (ms) : 1.1
2148     2148 ALL Gun timing error Gun 4-8 error (ms) : -1.1
2142     2142 ALL Gun timing error Gun 4-8 error (ms) : -1.1
2001-1983     2001-1983 443-459 Bird depth out of spec Bird C2-5
1999-1986     1999-1986 395-411 Bird depth out of spec Bird C2-3
1997-1984     1997-1984 419-435 Bird depth out of spec Bird C2-4
1676     1676 ALL Gun timing error Gun 5-4 error (ms) : -1.1
1612     1612 ALL Gun timing error Gun 5-4 error (ms) : -1.2
1548-1528     1548-1528 443-459 Bird depth out of spec Bird C2-5
Comment
Shot(s)     File(s) Trace(s) Type Remark
2250     2250 ALL Swell Noise Burst of swell noise affecting 5% of traces, RMS 9µB


 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 16:23:59utc 24-Feb-2002