ACQUISITION REPORT Sequence-0934
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170D
  Survey Type 4 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A0011LMK934
  Preplot G01A4976
  Direction 271.0°
  SOL Date 22:20:11utc 14-Jul-2002
  EOL Date 22:52:04utc 14-Jul-2002
 Attributes:  
   Wind Force 20.0 [knots] Dir WNW
   Swell Height 2.0 [meters] Dir W
   Propellor rpm 137 [avg]  
   Propellor pitch 60 [avg]  
       
  SOL EOL  
   Waterdepth 96.9 74.0 [meters]
   Bottomspeed  4.3 4.4 [knots]
   Featherangle port -9.5 port -3.9 [deg]
   Cable noise 7.9 6.6 [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)   2518 - 2519  
   SOL Dummy Record(s) 2520 - 2549 2520 - 2549 22:15:58 - 22:20:03
   FSP Start of Line 2550 2550 22:20:11
   MSP      
   LSP End of Line 2780 2780 22:52:04
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3210 - 3211  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2550 - 2645 2550 - 2645 22:20:11-22:33:26 Infill 8 Valid Run in to Cobia and Mackrel.
    2646 - 2760 2646 - 2760 22:33:34-22:49:14 Infill 8 Valid Boundary between Cobia and Mackrel.
    2761 - 2780 2761 - 2780 22:49:22-22:52:04 Infill 8 Valid Run out from Cobia and Mackrel
 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 1027mB. Using Four by 2.6km streamer. Swell bursts and side swipes present on records.    

Tape-list
Stream 2
   Shot(s) Files Deck Reel Remark
  2518 - 3211 2518 - 3211 1 10142  
Stream 3
   Shot(s) Files Deck Reel Remark
  2518 - 3211 2518 - 3211 4 10142  

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, Occasionally deep 8.1m - 8.4m
ALL     ALL ALL Swell Noise Swell bursts affecting 5% of traces, 5µB - 8uB RMS
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 09:32:28utc 15-Jul-2002