ACQUISITION REPORT Sequence-0893
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170D
  Survey Type 4 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3568KMA893
  Preplot G01A3568
  Direction 18.0°
  SOL Date 05:11:19utc 08-Jul-2002
  EOL Date 05:42:04utc 08-Jul-2002
 Attributes:  
   Wind Force 27.0 [knots] Dir NW
   Swell Height 1.5 [meters] Dir W
   Propellor rpm 130 [avg]  
   Propellor pitch 60 [avg]  
       
  SOL EOL  
   Waterdepth 55.0 53.0 [meters]
   Bottomspeed  5.0 5.1 [knots]
   Featherangle sb +9.8 sb +8.8 [deg]
   Cable noise 6.3 7.14 [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)   2628 - 2629  
   SOL Dummy Record(s) 2630 - 2659 2630 - 2659 05:07:43 - 05:11:11
   FSP Start of Line 2660 2660 05:11:19
   MSP      
   LSP End of Line 2919 2919 05:42:04
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2920 - 2921  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2660 - 2919 2660 - 2919 05:11:19-05:42:04 Infill 8 Valid Orthogonal line east of Marlin 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. Occ swell noise seen on all cables.    

Tape-list
Stream 2
   Shot(s) Files Deck Reel Remark
  2628 - 2921 2628 - 2921 2 10101  
Stream 3
   Shot(s) Files Deck Reel Remark
  2628 - 2921 2628 - 2921 4 10101  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
2671-2701     2671-2701 267-283 Bird depth out of spec Bird C2-5, max depth 9.6m
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 417-421 Bird depth out of spec Bird C3-1, occasionally depth 8.0m
2708-2717     2708-2717 241-257 Bird depth out of spec Bird C2-4
2714-2724     2714-2724 267-283 Bird depth out of spec Bird C2-5
2722     2722 ALL Gun timing error Gun 5-3 error (ms) : -1.3
2780-2799     2780-2799 241-257 Bird depth out of spec Bird C2-4
2780-2861     2780-2861 267-283 Bird depth out of spec Bird C2-5
2794     2794 ALL Gun timing error Gun 5-3 error (ms) : -1.2
2806     2806 ALL Gun timing error Gun 5-3 error (ms) : -1.5
2819-2843     2819-2843 ALL Streamer noise Low frequency noise dt bend at front third of cables
2825-2831     2825-2831 241-257 Bird depth out of spec Bird C2-4
2833-2842     2833-2842 241-257 Bird depth out of spec Bird C2-4
2838     2838 ALL Gun timing error Gun 5-3 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 18:17:14utc 11-Jul-2002