ACQUISITION REPORT Sequence-0437
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4080D437
  Preplot G01A4080
  Direction 18.0°
  SOL Date 03:13:16utc 13-May-2002
  EOL Date 04:26:26utc 13-May-2002
 Attributes:  
   Wind Force 20.0 [knots] Dir SSW
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 62.0 57.0 [meters]
   Bottomspeed  4.5 4.5 [knots]
   Featherangle port -5.7 port -0.2 [deg]
   Cable noise 5.6 18.5 [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)   2609 - 2610  
   SOL Dummy Record(s) 2611 - 2640 2611 - 2640 03:09:14 - 03:13:07
   FSP Start of Line 2641 2641 03:13:16
   MSP      
   LSP End of Line 3180 3180 04:26:26
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4297 - 4298  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2641 - 3180 2641 - 3180 03:13:16-04:26:26 Reshoot 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1023mB. Low frequency strumming Str 6 channels 1841 - 1875. Occassional burst of swell noise present on records, affecting <5 % of traces.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2609 - 3038 2609 - 3038 2 1816  
  3039 - 4298 3039 - 4298 1 1817  
Stream 2
   Shot(s) Files Deck Reel Remark
  2609 - 3038 2609 - 3038 4 1816  
  3039 - 4298 3039 - 4298 3 1817  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1633, 2782 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 337, 349, 791, 1553 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL 744, 2764 Killed traces  
2845     2845 ALL Gun timing error Gun 2-1 error (ms) : -2.3
3158-3180     3158-3180 1-75 Streamer noise Low frequency noise dt turn
3158-3180     3158-3180 369-444 Streamer noise Low frequency noise dt turn
3158-3180     3158-3180 737-812 Streamer noise Low frequency noise dt turn
3158-3180     3158-3180 1105-1180 Streamer noise Low frequency noise dt turn
3158-3180     3158-3180 1473-1548 Streamer noise Low frequency noise dt turn
3158-3180     3158-3180 1841-1916 Streamer noise Low frequency noise dt turn
3158-3180     3158-3180 2209-2576 Streamer noise Low frequency noise dt turn
3158-3180     3158-3180 2577-2652 Streamer noise Low frequency noise dt turn
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS Test Fails PS test
Comment
Shot(s)     File(s) Trace(s) Type Remark
2641     2641 ALL Line Information First Overlap SP
2651     2651 ALL Line Information First Reshoot SP
3118     3118 ALL Line Information Turn starboard to avoid Rig


 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 05:09:45utc 13-May-2002