ACQUISITION REPORT Sequence-0941
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170D
  Survey Type 4 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A5216JCO941
  Preplot G01A5216CO
  Direction 108.0°
  SOL Date 17:16:34utc 15-Jul-2002
  EOL Date 17:54:37utc 15-Jul-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir NW
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 135 [avg]  
   Propellor pitch 50 [avg]  
       
  SOL EOL  
   Waterdepth 66.5 82.3 [meters]
   Bottomspeed  4.8 5.0 [knots]
   Featherangle port -7.2 port -9.5 [deg]
   Cable noise 4.2 3.6 [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 -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)   3152 - 3151  
   SOL Dummy Record(s) 3150 - 3121 3150 - 3121 17:12:44 - 17:16:26
   FSP Start of Line 3120 3120 17:16:34
   MSP      
   LSP End of Line 2820 2820 17:54:37
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2819 - 2818  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3120 - 2820 3120 - 2820 17:16:34-17:54:37 Infill 8 Valid Orthoganal line South 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 1016mB. Using Four by 2.6km streamer. Side swipes present on records.    

Tape-list
Stream 2
   Shot(s) Files Deck Reel Remark
  3152 - 2818 3152 - 2818 2 10149  
Stream 3
   Shot(s) Files Deck Reel Remark
  3152 - 2818 3152 - 2818 3 10149  

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, Occasionally deep 8.1m - 8.5m
ALL     ALL ALL Swell Noise swell noise effecting <5% of traces <5uB RMS
2892     2892 ALL Gun timing error Gun 5-4 error (ms) : -1.1
2890     2890 ALL Gun timing error Gun 5-4 error (ms) : -1.1
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 04:08:30utc 16-Jul-2002