ACQUISITION REPORT Sequence-0228
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A1344A228
  Preplot G01A1344
  Direction 198.0°
  SOL Date 16:02:40utc 25-Jan-2002
  EOL Date 19:29:28utc 25-Jan-2002
 Attributes:  
   Wind Force 0.5 [knots] $(wind_dir)
   Swell Height 2.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 17.0 38.0 [meters]
   Bottomspeed  4.5 4.6 [knots]
   Featherangle 0.0 sb +1.5 [deg]
   Cable noise 29.0 6.52 [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)   2533 - 2532  
   SOL Dummy Record(s) 2531 - 2522 2531 - 2522 16:01:21 - 16:02:32
   FSP Start of Line 2521 2521 16:02:40
   MSP      
   LSP End of Line 923 923 19:29:28
   EOL Dummy Record(s)      
   EOL Noise Record(s)   922 - 922  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2521 - 923 2521 - 923 16:02:40-19:29:28 Prime 14 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC STR 1 (CHN 1-368) NTBP D/T EARTH LEAKAGE. Short SOL run in for shallows, all cables suffering from turn noise on noise record. Feather angle at SOL also excessive due to the cable bend. Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1019mB, pressure now 1018mB. Lost comms with B2-9 and B4-17.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2533 - 2104 2533 - 2104 1 941  
  2103 - 1674 2103 - 1674 2 942  
  1673 - 1244 1673 - 1244 1 943  
  1243 - 922 1243 - 922 2 944  
Stream 2
   Shot(s) Files Deck Reel Remark
  2533 - 2104 2533 - 2104 3 941  
  2103 - 1674 2103 - 1674 4 942  
  1673 - 1244 1673 - 1244 3 943  
  1243 - 922 1243 - 922 4 944  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL-924 1255 Killed traces  
ALL     ALL-924 1855 Killed traces  
ALL     ALL 1-368 Parity errors Streamer 1 NTBP d/t E/L.
1085-1053     1085-1053 2817 Spiking Trace(s)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2034 Fails crossfeed test Fails crossfeed test
ALL     ALL 1-17, 22, 369-383, 737-752, 1105-1113, 1126, 1473-1474, 1477, 1481, 1484, 2209-2227, 2229-2232, 2577-2578, 2581-2582, 2584-2589, 2591-2593, 2601-2602, 2605 Slope alarm > 5% of total line
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 21:27:32utc 25-Jan-2002