ACQUISITION REPORT Sequence-0942
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170D
  Survey Type 4 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A5216KCO942
  Preplot G01A5216CO
  Direction 288.0°
  SOL Date 20:13:19utc 15-Jul-2002
  EOL Date 20:49:54utc 15-Jul-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir WNW
   Swell Height 0.5 [meters] Dir WNW
   Propellor rpm 137 [avg]  
   Propellor pitch 55 [avg]  
       
  SOL EOL  
   Waterdepth 71.0 67.0 [meters]
   Bottomspeed  3.6 3.4 [knots]
   Featherangle sb +2.9 sb +4.5 [deg]
   Cable noise 4.5 3.7 [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 -180.0 25.0 -6.0 3542.0 3 24
2 PORT -180.0 -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 -330.0 150.0 -7.0 2600 Nessie-3 12.5 208 0001-0208
2 STBD -330.0 50.0 -7.0 2600 Nessie-3 12.5 208 0209-0416
3 PORT -330.0 -50.0 -7.0 2600 Nessie-3 12.5 208 0417-0624
4 PORT -330.0 -150.0 -7.0 2600 Nessie-3 12.5 208 0625-0832

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 0208 0001-0208 0208 0001 - 0208 5.60
3 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0208 0209-0416 0208 0209 - 0416 5.60
4 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0208 0417-0624 0208 0417 - 0624 5.60
5 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0208 0625-0832 0208 0625 - 0832 5.60

Production
  Shotpoint File Time [utc]
   SOL Noise Record(s)   2858 - 2859  
   SOL Dummy Record(s) 2860 - 2889 2860 - 2889 20:08:07 - 20:13:09
   FSP Start of Line 2890 2890 20:13:19
   MSP      
   LSP End of Line 3095 3095 20:49:54
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3191 - 3192  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2890 - 3095 2890 - 3095 20:13:19-20:49:54 Infill 8 Valid Orthoganal line North of Cobia platform
 Remarks:      
   Navigation Streamer depth 7.0mtr. Four by 2.6km streamer line.    
   Recording QC Frontsheet Set 6. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1024mB. Using Four by 2.6km streamer. Side swipes present on records. Ocassinal swell bursts    

Tape-list
Stream 2
   Shot(s) Files Deck Reel Remark
  2858 - 3192 2858 - 3192 1 10150  
Stream 3
   Shot(s) Files Deck Reel Remark
  2858 - 3192 2858 - 3192 4 10150  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 417-421 Bird depth out of spec Bird C3-1, ocassional deep 8.1-8.5m
3040     3040 ALL Gun timing error Gun 5-4 error (ms) : 1.2
Comment
Shot(s)     File(s) Trace(s) Type Remark
2890     2890 ALL Swell Noise Ocassional swell bursts affecting <5% of traces, <5µB RMS


 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 07:10:33utc 16-Jul-2002