ACQUISITION REPORT Sequence-0496
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170D
  Survey Type 4 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2432J496
  Preplot G01A2432
  Direction 198.0°
  SOL Date 17:01:56utc 07-Jul-2002
  EOL Date 17:45:14utc 07-Jul-2002
 Attributes:  
   Wind Force 16.0 [knots] Dir WNW
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 130 [avg]  
   Propellor pitch 65 [avg]  
       
  SOL EOL  
   Waterdepth 47.2 49.0 [meters]
   Bottomspeed  3.8 4.0 [knots]
   Featherangle port -4.9 port -3.4 [deg]
   Cable noise 4.25 3.9 [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
0 STBD -180.0 25.0 -6.0 0.0 0 0
0 STBD -180.0 -25.0 -6.0 0.0 0 0

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)   2398 - 2397  
   SOL Dummy Record(s) 2396 - 2367 2396 - 2367 16:57:15 - 17:01:46
   FSP Start of Line 2366 2366 17:01:56
   MSP      
   LSP End of Line 2085 2085 17:45:14
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2084 - 2083  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2366 - 2085 2366 - 2085 17:01:56-17:45:14 Infill 8 Valid Orthogonal line East of Whiting 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 1020mB. Using Four by 2.6km streamer.    

Tape-list
Stream 2
   Shot(s) Files Deck Reel Remark
  2398 - 2084 2398 - 2084 2 10098  
Stream 3
   Shot(s) Files Deck Reel Remark
  2398 - 2084 2398 - 2084 4 10098  

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, Erratic depth keeping, Drifting in and out of spec, Max 8.5m
ALL     ALL ALL Swell Noise Occasional swell bursts 3-5uB affect 1-5% of traces
ALL     ALL 1-6, 9, 209-217, 417-422, 424, 625-640 Slope alarm > 5% of total line
2293     2293 ALL Gun timing error Gun 2-3 error (ms) : -1.3
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 18:32:02utc 11-Jul-2002