ACQUISITION REPORT Sequence-0476
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4720K476
  Preplot G01A4720
  Direction 18.0°
  SOL Date 07:01:24utc 07-Jun-2002
  EOL Date 11:14:50utc 07-Jun-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir N
   Swell Height 1.0 [meters] Dir NE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 167.0 65.0 [meters]
   Bottomspeed  4.2 4.0 [knots]
   Featherangle port -1.2 sb +0.4 [deg]
   Cable noise 4.7 5.4 [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)   1810 - 1811  
   SOL Dummy Record(s) 1812 - 1813 1812 - 1813 04:47:21 - 04:47:32
   FSP Start of Line 2550 2550 07:01:24
   MSP      
   LSP End of Line 4323 4323 11:14:50
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4324 - 4324  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2550 - 2575 2550 - 2575 07:01:24-07:05:00 Infill 0 Scratched NTBP Guns tuning in during soft start
    2576 - 4323 2576 - 4323 07:05:09-11:14:50 Infill 14 Valid  
 Remarks:      
   Navigation Streamer depth 7.0mtr    
   Recording QC ##Line shot using streamers 1-7 only### . FGSP 2576 due to whales in vicinity Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1009mB. Low frequency strumming Str 6 channels 1841 - 1875.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1810 - 2975 1810 - 2975 2 1940 FGSP 2576
  2976 - 3405 2976 - 3405 2 1941  
  3406 - 3835 3406 - 3835 1 1942  
  3836 - 4265 3836 - 4265 2 1943  
  4266 - 4324 4266 - 4324 1 1944  
Stream 2
   Shot(s) Files Deck Reel Remark
  1810 - 2975 1810 - 2975 3 1940 FGSP 2576
  2976 - 3405 2976 - 3405 4 1941  
  3406 - 3835 3406 - 3835 3 1942  
  3836 - 4265 3836 - 4265 4 1943  
  4266 - 4324 4266 - 4324 3 1944  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 377, 744, 2446 Killed traces  
ALL     ALL 2577-2944 Killed traces Streamer 8 NTBP
ALL     ALL 304, 1857 Spiking Trace(s)  
ALL     ALL 1-5 Streamer depth Bird C1-1 out of spec deep 13mtr.
1814-2549       ALL NDR NO DATA RECORDED DUE TO WHALE SIGHTING
3066-3078     3066-3078 2259-2275 Bird depth out of spec Bird C7-4 max depth ~9.6m
3415-3428     3415-3428 27-43 Bird depth out of spec Bird C1-3 max depth ~9.9m
3415-3424     3415-3424 419-435 Bird depth out of spec Bird C2-4 max depth ~9.9m
3870-3884     3870-3884 2259-2275 Bird depth out of spec Bird C7-4 max depth ~10.4m
3870-3883     3870-3883 2283-2299 Bird depth out of spec Bird C7-5 max depth ~9.8m
Warning
Shot(s)     File(s) Trace(s) Type Remark
2675-2689     2675-2689 NONE Bird depth out of spec Bird C7-6
2676-2687     2676-2687 NONE Bird depth out of spec Bird C7-4
2684-2696     2684-2696 NONE Bird depth out of spec Bird C2-12
2743     2743 ALL Gun timing error Gun 2-1 error (ms) : -1.6
3191-3214     3191-3214 NONE Bird depth out of spec Bird C1-3
3264-3281     3264-3281 NONE Bird depth out of spec Bird C1-3
3330-3348     3330-3348 NONE Bird depth out of spec Bird C2-12
3416-3427     3416-3427 NONE Bird depth out of spec Bird C1-2
3469-3492     3469-3492 NONE Bird depth out of spec Bird C1-2
3543-3556     3543-3556 NONE Bird depth out of spec Bird C1-2
3547-3567     3547-3567 NONE Bird depth out of spec Bird C2-12
3653-3666     3653-3666 NONE Bird depth out of spec Bird C2-12
3951-3968     3951-3968 NONE Bird depth out of spec Bird C7-4
3952-3975     3952-3975 NONE Bird depth out of spec Bird C7-5
4118-4129     4118-4129 NONE Bird depth out of spec Bird C2-12
4146-4161     4146-4161 NONE Bird depth out of spec Bird C2-13
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL NONE Bird no comms C1-4, C4-2
1810-1813     1813 ALL SOL Noise record Tape 1940 files 1810-1813 (noise rec) 2550-2575 (ntbp) 2576 FGSP
2576     2576 ALL First Good SP Due to Whale sighting


 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 23:46:27utc 28-Jun-2002