ACQUISITION REPORT Sequence-0904
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170D
  Survey Type 4 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2848MSN904
  Preplot G01A2848
  Direction 18.0°
  SOL Date 00:27:42utc 11-Jul-2002
  EOL Date 01:03:31utc 11-Jul-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir NW
   Swell Height 0.5 [meters] Dir NW
   Propellor rpm 134 [avg]  
   Propellor pitch 62 [avg]  
       
  SOL EOL  
   Waterdepth 49.0 49.0 [meters]
   Bottomspeed  4.7 4.8 [knots]
   Featherangle port -6.2 port -5.1 [deg]
   Cable noise 9.1 4.4 [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)   2598 - 2599  
   SOL Dummy Record(s) 2577 - 2599 2577 - 2599 00:24:39 - 00:27:34
   FSP Start of Line 2600 2600 00:27:42
   MSP      
   LSP End of Line 2880 2880 01:03:31
   EOL Dummy Record(s) 2881 - 2888 2881 - 2888 01:03:39 - 01:04:32
   EOL Noise Record(s)   2889 - 2890  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2600 - 2880 2600 - 2880 00:27:42-01:03:31 Infill 8 Valid Orthogonal line West of Snapper 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 1025mB. Using Four by 2.6km streamer.High speed at SOL noise records 5.5 knots    

Tape-list
Stream 2
   Shot(s) Files Deck Reel Remark
  2598 - 2890 2598 - 2890 1 10112  
Stream 3
   Shot(s) Files Deck Reel Remark
  2598 - 2890 2598 - 2890 3 10112  

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 C2-1, occasionally out of spec 8.1m - 8.7m
ALL     ALL 417-421 Bird depth out of spec Bird C3-1, occasionally out of spec 8.1m - 8.4m
ALL     ALL 1-10, 209, 214, 216-217, 417-424, 625-633 Slope alarm > 5% of total line
2734     2734 ALL Gun timing error Gun 5-3 error (ms) : -1.1
2826     2826 ALL Gun timing error Gun 5-3 error (ms) : -1.2
2854     2854 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 12:35:28utc 11-Jul-2002