ACQUISITION REPORT Sequence-0287
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4768A287
  Preplot G01A4768
  Direction 198.0°
  SOL Date 11:18:04utc 17-Feb-2002
  EOL Date 17:26:10utc 17-Feb-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir S
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 69.0 241.3 [meters]
   Bottomspeed  4.4 4.6 [knots]
   Featherangle port -2.6 sb +6.8 [deg]
   Cable noise 5.3 4.9 [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)   4237 - 4236  
   SOL Dummy Record(s) 4235 - 4206 4235 - 4206 11:13:56 - 11:17:55
   FSP Start of Line 4205 4205 11:18:04
   MSP      
   LSP End of Line 1721 1721 17:26:10
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1720 - 1719  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4205 - 1721 4205 - 1721 11:18:04-17:26:10 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 1022mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB gun firing on ODD SP.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4237 - 3808 4237 - 3808 1 1149  
  3807 - 3378 3807 - 3378 2 1150  
  3377 - 2948 3377 - 2948 1 1151  
  2947 - 2518 2947 - 2518 2 1152  
  2517 - 2088 2517 - 2088 1 1153  
  2087 - 1719 2087 - 1719 1 1154  
Stream 2
   Shot(s) Files Deck Reel Remark
  4237 - 3808 4237 - 3808 4 1149  
  3807 - 3378 3807 - 3378 3 1150  
  3377 - 2948 3377 - 2948 4 1151  
  2947 - 2518 2947 - 2518 3 1152  
  2517 - 2088 2517 - 2088 3 1153  
  2087 - 1719 2087 - 1719 4 1154  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1433, 1476 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)  
2293-2288     2293-2288 419-435 Bird depth out of spec Bird C2-4 - max depth 9.4
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2209-2213 Bird depth out of spec Streamer #7 bird 1 occassionally deep 8.1-8.4
ALL     ALL 2034 Crossfeed Fails crossfeed test
ALL     ALL 1-12, 369-374, 376-377, 737-739, 741, 744-745, 748, 751-752, 755-756, 764, 1126, 1130, 1132, 1134-1135, 1144, 1489, 1841-1850, 1852-1853, 1855-1856, 1873, 2209-2220, 2222-2226, 2229, 2577, 2585, 2587-2588 Slope alarm > 5% of total line
3468     3468 ALL Gun timing error Gun 5-4 error (ms) : -1.1
2683     2683 ALL Gun timing error Gun 3-1 error (ms) : 1.8
2646-2631     2646-2631 419-435 Bird depth out of spec Bird C2-4
2632-2623     2632-2623 467-483 Bird depth out of spec Bird C2-6
2617-2608     2617-2608 395-411 Bird depth out of spec Bird C2-3
2605     2605 ALL Gun timing error Gun 3-1 error (ms) : 1.7
2563-2553     2563-2553 467-483 Bird depth out of spec Bird C2-6
2523     2523 ALL Gun timing error Gun 3-1 error (ms) : 1.7
1848     1848 ALL Gun timing error Gun 5-4 error (ms) : -1.1
1816     1816 ALL Gun timing error Gun 5-4 error (ms) : -1.1
1747     1747 ALL Gun timing error Gun 3-1 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 16:23:17utc 24-Feb-2002