ACQUISITION REPORT Sequence-0395
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4064C395
  Preplot G01A4064
  Direction 18.0°
  SOL Date 04:55:53utc 02-May-2002
  EOL Date 06:25:19utc 02-May-2002
 Attributes:  
   Wind Force 5.0 [knots] $(wind_dir)
   Swell Height 0.5 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 64.0 55.0 [meters]
   Bottomspeed  3.7 4.5 [knots]
   Featherangle port -19.7 port -8.7 [deg]
   Cable noise 14.58 18.6 [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)   2594 - 2595  
   SOL Dummy Record(s) 2596 - 2625 2596 - 2625 04:51:02 - 04:55:43
   FSP Start of Line 2626 2626 04:55:53
   MSP      
   LSP End of Line 3205 3205 06:25:19
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3566 - 3567  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2626 - 3205 2626 - 3205 04:55:53-06:25:19 Reshoot 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m. High frequency strumming Str 6 1841 - 1875    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1035mB. Turn noise found on SOL & EOL. No swell noise on records    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2594 - 3023 2594 - 3023 1 1689  
  3024 - 3567 3024 - 3567 2 1690  
Stream 2
   Shot(s) Files Deck Reel Remark
  2594 - 3023 2594 - 3023 4 1689  
  3024 - 3567 3024 - 3567 3 1690  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 744 Killed traces  
ALL     ALL 1476, 1633, 2782 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 1857, 2827, 2871 Noisy Trace(s)  
ALL     ALL 2532, 1797, 2764 Spiking Trace(s)  
2689-2707     2689-2707 25-82 Monowing wash Low frequency, high amplitude noise due to monowing wash
3115     3115 2698-2713 Streamer noise Object striking streamer 8
3125     3125 2698-2713 Streamer noise Object striking streamer 8
3126     3126 2698-2713 Streamer noise Object striking streamer 8
3188-3205     3188-3205 1-60 Streamer noise High amplitude low frequency turn noise dt turn
3188-3205     3188-3205 369-428 Streamer noise High amplitude low frequency turn noise dt turn
3188-3205     3188-3205 737-796 Streamer noise High amplitude low frequency turn noise dt turn
3188-3205     3188-3205 1105-1164 Streamer noise High amplitude low frequency turn noise dt turn
3188-3205     3188-3205 1473-1532 Streamer noise High amplitude low frequency turn noise dt turn
3188-3205     3188-3205 1841-1900 Streamer noise High amplitude low frequency turn noise dt turn
3188-3205     3188-3205 2209-2268 Streamer noise High amplitude low frequency turn noise dt turn
3188-3205     3188-3205 2577-2636 Streamer noise High amplitude low frequency turn noise dt turn
Warning
Shot(s)     File(s) Trace(s) Type Remark
3135     3135 ALL Streamer noise Port turn to avoid Rig
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 03:08:51utc 05-May-2002