ACQUISITION REPORT Sequence-0243
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A1024A243
  Preplot G01A1024
  Direction 18.0°
  SOL Date 03:32:31utc 30-Jan-2002
  EOL Date 05:13:23utc 30-Jan-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir NE
   Swell Height 1.0 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 28.0 14.0 [meters]
   Bottomspeed  4.7 4.8 [knots]
   Featherangle port -1.4 sb +1.0 [deg]
   Cable noise 5.6 9.4 [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)   991 - 992  
   SOL Dummy Record(s) 993 - 1002 993 - 1002 03:31:15 - 03:32:24
   FSP Start of Line 1003 1003 03:32:31
   MSP      
   LSP End of Line 1815 1815 05:13:23
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2753 - 2754  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1003 - 1778 1003 - 1778 03:32:31-05:08:37 Prime 16 Valid LGSP of line 1778 d/t str 4 earth leakage
    1779 - 1815 1779 - 1815 05:08:45-05:13:23 Prime 0 Scratched NTBP d/t streamer 4 earth leakage
 Remarks:      
   Navigation Streamer depth at 7m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1022mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. LGSP 1778 d/t streamer 4 earth leakage.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  991 - 1420 991 - 1420 2 994  
  1421 - 2754 1421 - 2754 1 995  
Stream 2
   Shot(s) Files Deck Reel Remark
  991 - 1420 991 - 1420 3 994  
  1421 - 2754 1421 - 2754 4 995  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 1255 Killed traces  
ALL     ALL- 1855 Killed traces  
ALL     ALL- 2307 Killed traces  
ALL     ALL 1495, 2307 Noisy Channels  
1036-1037     1036-1037 2209-2576 Low freq spikes Str 7  
1119-1121     1119-1121 2209-2576 Low freq spikes Str 7  
1192-1195     1192-1195 1855, 1871, 1887, 1903, 1919, 1935, 1951, 1967, 1983, 1999, 2015, 2031, 2047, 2063, 2079, 2095, 2111, 2127, 2143, 2159, 2175, 2191, 2207 Parity Error Parity Error line 15 on str 6
1199-1200     1199-1200 1841-2208 Low freq spikes Str 6  
1538     1538 1105-1472 Earth leakage spikes Earth Leakage spikes streamer 4
1543     1543 1105-1472 Earth leakage spikes Earth Leakage spikes streamer 4
1550     1550 1105-1472 Earth leakage spikes Earth Leakage spikes streamer 4
1553-1556     1553-1556 1105-1472 Earth leakage spikes Earth Leakage spikes streamer 4
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-20, 22-23, 369-383, 385, 389-390, 737-753, 755, 763-764, 1105-1117, 1126, 1473-1475, 1477-1481, 1841-1854, 1856, 1860-1861, 1864, 2209-2227, 2229-2232, 2239, 2577-2578, 2584-2589, 2591-2593, 2601-2602, 2605 Slope alarm > 5% of total line
1025-1035     1025-1035 2225-2240 Low freq spikes Str 7 Low freq pulses affecting bubble 2
1081     1081 ALL Gun timing error Gun 1-5 error (ms) : -1.2
1091     1091 ALL Gun timing error Gun 1-5 error (ms) : -1.4
1099     1099 ALL Gun timing error Gun 1-5 error (ms) : -1.5
1103     1103 ALL Gun timing error Gun 1-5 error (ms) : -1.1
1108-1118     1108-1118 2225-2240 Low freq spikes Str 7 Low freq pulses affecting bubble 2
1125     1125 ALL Gun timing error Gun 1-5 error (ms) : -1.1
1196-2752     1196- 1855, 1871, 1887, 1903, 1919, 1935, 1951, 1967, 1983, 1999, 2015, 2031, 2047, 2063, 2079, 2095, 2111, 2127, 2143, 2159, 2175, 2191, 2207 Parity Error Quite ocaasional very low parity errors line 15 on str 6
1285     1285 ALL Gun timing error Gun 1-5 error (ms) : -1.1
1297     1297 ALL Gun timing error Gun 1-5 error (ms) : -1.1
1347     1347 ALL Gun timing error Gun 1-5 error (ms) : -1.1
1439     1439 ALL Gun timing error Gun 1-5 error (ms) : 1.3
1501     1501 ALL Gun timing error Gun 1-5 error (ms) : 1.1
1733     1733 ALL Slow turn to stbd  
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 09:11:28utc 30-Jan-2002