ACQUISITION REPORT Sequence-0915
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170D
  Survey Type 4 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A7240PFL915
  Preplot G01A7240FL
  Direction 108.0°
  SOL Date 12:42:19utc 12-Jul-2002
  EOL Date 13:13:15utc 12-Jul-2002
 Attributes:  
   Wind Force 15.0 [knots] Dir NE
   Swell Height 1.0 [meters] Dir N
   Propellor rpm 135 [avg]  
   Propellor pitch 55 [avg]  
       
  SOL EOL  
   Waterdepth 80.0 113.0 [meters]
   Bottomspeed  5.0 4.6 [knots]
   Featherangle port -9.8 port -14.6 [deg]
   Cable noise 5.5 15.0 [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)   1912 - 1911  
   SOL Dummy Record(s) 1910 - 1881 1910 - 1881 12:38:37 - 12:42:12
   FSP Start of Line 1880 1880 12:42:19
   MSP      
   LSP End of Line 1630 1630 13:13:15
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1499 - 1498  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1880 - 1630 1880 - 1630 12:42:19-13:13:15 Infill 8 Valid Orthogonal line North of Flounder 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 1019mB. Using Four by 2.6km streamer. EOL noise high due to bend in streamer. SP 1655-1630, current noise seen on front third.    

Tape-list
Stream 2
   Shot(s) Files Deck Reel Remark
  1912 - 1498 1912 - 1498 1 10123  
Stream 3
   Shot(s) Files Deck Reel Remark
  1912 - 1498 1912 - 1498 3 10123  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
Warning
Shot(s)     File(s) Trace(s) Type Remark
1774     1774 ALL Gun timing error Gun 5-4 error (ms) : -1.4
1655-1630     1655-1630 ALL Streamer noise Low frequency noise dt currents approx 5-10 uB in front third of cable
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 05:37:04utc 13-Jul-2002