ACQUISITION REPORT Sequence-0087
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2800C087
  Preplot G01A2800
  Direction 18.0°
  SOL Date 21:06:02utc 27-Nov-2001
  EOL Date 21:38:50utc 27-Nov-2001
 Attributes:  
   Wind Force 7.0 [knots] Dir SW
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 48.0 47.0 [meters]
   Bottomspeed  4.9 4.9 [knots]
   Featherangle sb +5.8 port -4.0 [deg]
   Cable noise 5.0 5.0 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]

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)   2930 - 2931  
   SOL Dummy Record(s) 2932 - 2941 2932 - 2941 21:04:48 - 21:05:54
   FSP Start of Line 2942 2942 21:06:02
   MSP      
   LSP End of Line 3209 3209 21:38:50
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3210 - 3211  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2942 - 2951 2942 - 2951 21:06:02-21:07:08 Reshoot 16 Valid Overlap sp's
    2952 - 2982 2952 - 2982 21:07:15-21:10:56 Reshoot 16 Valid Reshoot seq 020 d/t GPS
    2983 - 3209 2983 - 3209 21:11:04-21:38:50 Reshoot 16 Valid Overlap sp's
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1004mB, pressure now 1027mB. Str 8 Bird 1 mask on External Header, occasionally deep, 8.1m.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2930 - 3211 2930 - 3211 1 332  
Stream 2
   Shot(s) Files Deck Reel Remark
  2930 - 3211 2930 - 3211 3 332  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
2930-3211       2220 Killed traces  
3061-3067     3061-3067 2235-2251 Bird depth out of spec Bird C7-3
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2301 Fails Crossfeed  
ALL     ALL 1191   Weak trace: 1191, more than -6 dB down
ALL     ALL 1-9, 11-12, 369-374, 376-377, 737-745, 748, 1105-1113, 1473, 1841-1842, 1845 Slope alarm > 5% of total line
ALL     ALL 304, 414, 1127, 2775 Noisy Traces  
2953     2953 ALL Gun timing error Gun 2-2 error (ms) : -1.9
2960     2960 NONE Bird depth out of spec Bird C8-5
2987     2987 NONE Bird depth out of spec Bird C8-1
3012     3012 NONE Bird depth out of spec Bird C7-1
3018     3018 NONE Bird depth out of spec Bird C8-1
3044     3044 NONE Bird depth out of spec Bird C7-3
3047-3052     3047-3052 NONE Bird depth out of spec Bird C7-4
3048     3048 NONE Bird depth out of spec Bird C7-3
3054     3054 NONE Bird depth out of spec Bird C7-1
3054     3054 NONE Bird depth out of spec Bird C7-4
3056-3060     3056-3060 NONE Bird depth out of spec Bird C7-3
3057     3057 NONE Bird depth out of spec Bird C7-4
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 22:47:07utc 27-Nov-2001