ACQUISITION REPORT Sequence-0946
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170D
  Survey Type 4 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4000JFT946
  Preplot G01A4000
  Direction 198.0°
  SOL Date 13:44:03utc 16-Jul-2002
  EOL Date 14:28:04utc 16-Jul-2002
 Attributes:  
   Wind Force 20.0 [knots] Dir WNW
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 135 [avg]  
   Propellor pitch 60 [avg]  
       
  SOL EOL  
   Waterdepth 62.0 64.0 [meters]
   Bottomspeed  4.0 3.5 [knots]
   Featherangle port -0.5 sb +1.6 [deg]
   Cable noise 8.9 5.1 [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)   1972 - 1971  
   SOL Dummy Record(s) 1970 - 1941 1970 - 1941 13:39:24 - 13:43:53
   FSP Start of Line 1940 1940 13:44:03
   MSP      
   LSP End of Line 1660 1660 14:28:04
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1659 - 1658  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1940 - 1660 1940 - 1660 13:44:03-14:28:04 Infill 8 Valid Orthogonal line East of Fortescue
 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 1019mB. Using Four by 2.6km streamer. Propeller Noise present on record. Ocassional swell bursts    

Tape-list
Stream 2
   Shot(s) Files Deck Reel Remark
  1972 - 1658 1972 - 1658 1 10154  
Stream 3
   Shot(s) Files Deck Reel Remark
  1972 - 1658 1972 - 1658 4 10154  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-14, 17, 20, 22, 24, 209-224, 228-229, 417-431, 438, 625-641, 650, 653 Slope alarm > 5% of total line
1940-1725     1940-1725 ALL Propeller Noise Dt high speed at rig passing.
1786     1786 ALL Gun timing error Gun 5-4 error (ms) : 1.3
1674     1674 ALL Gun timing error Gun 5-2 error (ms) : -1.8
Comment
Shot(s)     File(s) Trace(s) Type Remark
1940     1940 ALL Swell Noise 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 01:07:32utc 17-Jul-2002