ACQUISITION REPORT Sequence-0308
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4256A308
  Preplot G01A4256
  Direction 198.0°
  SOL Date 14:53:04utc 09-Mar-2002
  EOL Date 20:20:19utc 09-Mar-2002
 Attributes:  
   Wind Force 15.0 [knots] Dir ENE
   Swell Height 1.0 [meters] Dir E
   Propellor rpm 122 [avg]  
   Propellor pitch 70 [avg]  
       
  SOL EOL  
   Waterdepth 45.0 80.0 [meters]
   Bottomspeed  5.1 4.8 [knots]
   Featherangle sb +18.3 sb +7.9 [deg]
   Cable noise 4.5 7.0 [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)   4216 - 4215  
   SOL Dummy Record(s) 4214 - 4185 4214 - 4185 14:49:27 - 14:52:57
   FSP Start of Line 4184 4184 14:53:04
   MSP      
   LSP End of Line 1515 1515 20:20:19
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1514 - 1513  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4184 - 1515 4184 - 1515 14:53:04-20:20:19 Prime 16 Valid  
 Remarks:      
   Navigation      
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1027mB. 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
  4216 - 3787 4216 - 3787 1 1257  
  3786 - 3357 3786 - 3357 2 1258  
  3356 - 2927 3356 - 2927 1 1259  
  2926 - 2497 2926 - 2497 2 1260  
  2496 - 2067 2496 - 2067 1 1261  
  2066 - 1637 2066 - 1637 2 1262  
  1636 - 1513 1636 - 1513 1 1263  
Stream 2
   Shot(s) Files Deck Reel Remark
  4216 - 3787 4216 - 3787 4 1257  
  3786 - 3357 3786 - 3357 3 1258  
  3356 - 2927 3356 - 2927 4 1259  
  2926 - 2497 2926 - 2497 4 1260  
  2496 - 2067 2496 - 2067 3 1261  
  2066 - 1637 2066 - 1637 4 1262  
  1636 - 1513 1636 - 1513 3 1263  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 2599 Killed traces  
ALL     ALL 1476, 1633 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 1657, 2772, 2600 Spiking Trace(s)  
3642     3642 2582, 2598, 2614, 2630, 2646, 2662, 2678, 2694, 2710, 2726, 2742, 2758, 2774, 2790, 2806, 2822, 2838, 2854, 2870, 2886, 2902, 2918, 2934 Parity errors Parity errors streamer 8 line 6, (142 parity errors)
2893-2877     2893-2877 419-435 Bird depth out of spec Bird C2-4
2859     2859 ALL Gun timing error Gun 1-2 error (ms) : -2.2
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1, occasionally deep 8.1m - 8.3m
ALL     ALL 1-17, 20, 22, 369-383, 390, 405, 737-764, 769, 1105-1117, 1121-1126, 1128-1135, 1473-1474, 1477-1485, 1487, 1489, 1841-1867, 1873, 2209-2226, 2229-2230, 2232, 2577-2589, 2591-2593, 2602 Slope alarm > 5% of total line
3389-3377     3389-3377 2931-2944 Bird depth out of spec Bird C8-17
3224     3224 ALL Source depth out of spec Source-depth for gun position 2-3 below 6.6 meter
3099-3082     3099-3082 27-43 Bird depth out of spec Bird C1-3
3068-3047     3068-3047 2931-2944 Bird depth out of spec Bird C8-17
3067-3052     3067-3052 2259-2275 Bird depth out of spec Bird C7-4
3065-3054     3065-3054 2283-2299 Bird depth out of spec Bird C7-5
2957     2957 ALL Source depth out of spec Source-depth for gun position 2-3 below 6.6 meter
2891-2870     2891-2870 75-91 Bird depth out of spec Bird C1-5
2887-2870     2887-2870 51-67 Bird depth out of spec Bird C1-4
2440-2240     2440-2240 ALL Ship Noise Slight ship noise from abeam. approx 4uBar.
2119-2110     2119-2110 1027-1043 Bird depth out of spec Bird C3-14
2034     2034 ALL Gun timing error Gun 5-1 error (ms) : 1.7
1982     1982 ALL Gun timing error Gun 5-1 error (ms) : 1.8
1882-1880     1882-1880 NONE Bird depth out of spec Bird C2-3
1880     1880 ALL Gun timing error Gun 5-1 error (ms) : 1.6
1878     1878 ALL Gun timing error Gun 5-1 error (ms) : 1.6
1871-1853     1871-1853 443-459 Bird depth out of spec Bird C2-5
1860-1850     1860-1850 395-411 Bird depth out of spec Bird C2-3
1856-1846     1856-1846 419-435 Bird depth out of spec Bird C2-4
1756     1756 ALL Gun timing error Gun 5-1 error (ms) : 1.9
1742     1742 ALL Gun timing error Gun 5-1 error (ms) : 1.6
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 20:45:09utc 09-Mar-2002