ACQUISITION REPORT Sequence-0351
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3856A351
  Preplot G01A3856
  Direction 198.0°
  SOL Date 18:11:34utc 09-Apr-2002
  EOL Date 00:10:07utc 10-Apr-2002
 Attributes:  
   Wind Force 16.0 [knots] Dir SW
   Swell Height 1.5 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 49.0 66.0 [meters]
   Bottomspeed  4.4 4.6 [knots]
   Featherangle port -3.5 sb +2.1 [deg]
   Cable noise 5.0 5.3 [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
0 STBD -345.0 25.0 -6.0 0.0 0 0
0 STBD -345.0 -25.0 -6.0 0.0 0 0

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)   4179 - 4178  
   SOL Dummy Record(s) 4177 - 4168 4177 - 4168 18:10:11 - 18:11:26
   FSP Start of Line 4167 4167 18:11:34
   MSP 1566 1566 23:59:53
   LSP End of Line 1487 1487 00:10:07
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1486 - 1486  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4167 - 1487 4167 - 1487 18:11:34-00:10:07 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1019mB, pressure now 1018mB. 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
  4179 - 3750 4179 - 3750 1 1450  
  3749 - 3320 3749 - 3320 2 1451  
  3319 - 2890 3319 - 2890 1 1452  
  2889 - 2460 2889 - 2460 2 1453  
  2459 - 2030 2459 - 2030 1 1454  
  2029 - 1600 2029 - 1600 2 1455  
  1599 - 1487 1599 - 1487 1 1456  
Stream 2
   Shot(s) Files Deck Reel Remark
  4179 - 3750 4179 - 3750 3 1450  
  3749 - 3320 3749 - 3320 4 1451  
  3319 - 2890 3319 - 2890 3 1452  
  2889 - 2460 2889 - 2460 3 1453  
  2459 - 2030 2459 - 2030 4 1454  
  2029 - 1600 2029 - 1600 4 1455  
  1599 - 1487 1599 - 1487 3 1456  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1476 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 2265, 1801, 1553, 1032 Spiking Trace(s)  
ALL     ALL 1159, 2871 Noisy Trace(s)  
ALL     ALL 75-91 Streamer depth Streamer depth out of spec, Bird 1-5 average 9.0 m.
4096-4088     4096-4088 51-67 Streamer depth Streamer depth out of spec, Bird 1-4 max 10.3 m.
3757     3757 1041-1048 Streamer Earth Leakage Cable 3 leakage spikes seen
3757     3757 1059-1065 Streamer Earth Leakage Cable 3 leakage spikes seen
3631-3629     3631-3629 1041-1048 Streamer Earth Leakage Cable 3 leakage spikes seen
3631-3629     3631-3629 1059-1065 Streamer Earth Leakage Cable 3 leakage spikes seen
3226-3160     3226-3160 1041-1048 Streamer Earth Leakage Cable 3 leakage spikes seen
3226-3160     3226-3160 1059-1065 Streamer Earth Leakage Cable 3 leakage spikes seen
2098-2082     2098-2082 1041-1048 Streamer Earth Leakage Cable 3 leakage spikes seen
2098-2082     2098-2082 1059-1065 Streamer Earth Leakage Cable 3 leakage spikes seen
1978-1743     1978-1743 1041-1048 Streamer Earth Leakage Cable 3 leakage spikes seen
1978-1743     1978-1743 1059-1065 Streamer Earth Leakage Cable 3 leakage spikes seen
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL NONE Streamer depth Bird 1-5 running deep throughout line average depth 9.0 m.
ALL     ALL 1-17, 20, 22-23, 33, 369-385, 387-390, 392, 405, 737-765, 769-770, 1105-1117, 1119-1138, 1147, 1473, 1481-1485, 1487, 1489, 1841-1857, 1860-1864, 1866-1867, 1873, 2209-2226, 2229-2230, 2232, 2577-2589, 2591, 2602 Slope alarm > 5% of total line
4077-4063     4077-4063 NONE Streamer depth Streamer depth out of spec, Bird 1-6 max 9.0 m.
2847-2724     2847-2724 NONE Streamer depth Streamer depth out of spec, Bird 7-4 max 9.5 m.
2843-2687     2843-2687 NONE Streamer depth Streamer depth out of spec, Bird 7-5 max 9.4 m.
1906-1753     1906-1753 NONE Streamer depth Streamer depth out of spec, Bird 7-4 max 9.9 m.
1891-1754     1891-1754 NONE Streamer depth Streamer depth out of spec, Bird 7-5 max 8.9 m.
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 09:41:04utc 10-Apr-2002