ACQUISITION REPORT Sequence-0295
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3792A295
  Preplot G01A3792
  Direction 18.0°
  SOL Date 00:32:28utc 24-Feb-2002
  EOL Date 06:51:11utc 24-Feb-2002
 Attributes:  
   Wind Force 6.0 [knots] $(wind_dir)
   Swell Height 0.5 [meters] $(swell_dir)
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 61.0 47.0 [meters]
   Bottomspeed  4.4 4.0 [knots]
   Featherangle sb +1.5 port -6.8 [deg]
   Cable noise 4.35 5.9 [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)   1644 - 1645  
   SOL Dummy Record(s) 1646 - 1675 1646 - 1675 00:28:20 - 00:32:20
   FSP Start of Line 1676 1676 00:32:28
   MSP      
   LSP End of Line 4278 4278 06:51:11
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4279 - 4280  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1676 - 4278 1676 - 4278 00:32:28-06:51:11 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 1025mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. Eratic depth reading gun2-5    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1644 - 2073 1644 - 2073 1 1200  
  2074 - 2503 2074 - 2503 2 1201  
  2504 - 2933 2504 - 2933 1 1202  
  2934 - 3363 2934 - 3363 2 1203  
  3364 - 3793 3364 - 3793 1 1204  
  3794 - 4223 3794 - 4223 1 1205  
  4224 - 4280 4224 - 4280 2 1206  
Stream 2
   Shot(s) Files Deck Reel Remark
  1644 - 2073 1644 - 2073 4 1200  
  2074 - 2503 2074 - 2503 3 1201  
  2504 - 2933 2504 - 2933 4 1202  
  2934 - 3363 2934 - 3363 3 1203  
  3364 - 3793 3364 - 3793 4 1204  
  3794 - 4223 3794 - 4223 3 1205  
  4224 - 4280 4224 - 4280 4 1206  

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 Spiking Trace(s)  
ALL     ALL 1495 Noisy Trace(s)  
ALL     ALL-2067 1473, 2641 Killed trace  
1676-2067     1676-2067 1473 Killed trace  
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 Streamer #7 bird 1 occassionally deep 8.1-8.4
ALL     ALL 1-13, 16, 369-383, 385, 390, 737-761, 763-764, 1105-1117, 1121-1135, 1137-1138, 1147, 1473, 1480-1490, 1493, 1495, 1841-1857, 1860-1867, 1873, 1875, 2209-2227, 2229-2232, 2236, 2239, 2577-2578, 2581-2588, 2601-2602 Slope alarm > 5% of total line
2097     2097 ALL Gun timing error Gun 3-1 error (ms) : 1.6
3483     3483 ALL Gun timing error Gun 3-1 error (ms) : -1.6
3485     3485 ALL Gun timing error Gun 3-1 error (ms) : -1.8
3596     3596 ALL Gun timing error Gun 5-4 error (ms) : -1.1
3824     3824 ALL Gun timing error Gun 5-4 error (ms) : -1.2
3890     3890 ALL Gun timing error Gun 5-4 error (ms) : -1.1
3966     3966 ALL Gun timing error Gun 5-4 error (ms) : -1.1
4172     4172 ALL Gun timing error Gun 5-4 error (ms) : -1.2
Comment
Shot(s)     File(s) Trace(s) Type Remark
2200     2200 ALL Swell Noise Occassional burst of swell noise present
2528     2528 ALL Swell Noise Swell noise increasing affecting 5% of traces
2570     2570 ALL Swell Noise Swell noise decreasing


 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 16:24:01utc 24-Feb-2002