ACQUISITION REPORT Sequence-0947
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170D
  Survey Type 4 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A5200PCO947
  Preplot G01A5200CO
  Direction 86.0°
  SOL Date 16:28:02utc 16-Jul-2002
  EOL Date 17:06:32utc 16-Jul-2002
 Attributes:  
   Wind Force 21.0 [knots] Dir W
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 135 [avg]  
   Propellor pitch 50 [avg]  
       
  SOL EOL  
   Waterdepth 67.5 79.7 [meters]
   Bottomspeed  4.4 4.1 [knots]
   Featherangle port -9.2 port -13.7 [deg]
   Cable noise 5.5 10.7 [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)   3152 - 3151  
   SOL Dummy Record(s) 3150 - 3121 3150 - 3121 16:23:51 - 16:27:53
   FSP Start of Line 3120 3120 16:28:02
   MSP      
   LSP End of Line 2850 2850 17:06:32
   EOL Dummy Record(s) 2250 - 1780 2250 - 1780 09:55:21 - 11:11:17
   EOL Noise Record(s)   2819 - 1729  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3120 - 2850 3120 - 2850 16:28:02-17:06:32 Infill 8 Valid Orthogonal 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 1016mB. Using Four by 2.6km streamer. Occasional swell bursts present on records.    

Tape-list
Stream 2
   Shot(s) Files Deck Reel Remark
  3152 - 2818 3152 - 2818 1 10155  
Stream 3
   Shot(s) Files Deck Reel Remark
  3152 - 2818 3152 - 2818 4 10155  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 209-213 Bird depth out of spec Bird C3-1 Occasionally deep, 8.1-8.5 m
2928     2928 ALL Gun timing error Gun 5-4 error (ms) : -1.1
Comment
Shot(s)     File(s) Trace(s) Type Remark
3120-2981     3120-2981 ALL Swell Noise Occasional swell burst affecting 5-10% of traces 5-8uB RMS
2980-2850     2980-2850 ALL Swell Noise Occasional swell burst affecting 5-10% of traces 8-10uB 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 12:30:18utc 18-Jul-2002