ACQUISITION REPORT Sequence-0901
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170D
  Survey Type 4 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A7352JMA901
  Preplot G01A7352MA
  Direction 108.0°
  SOL Date 14:39:01utc 10-Jul-2002
  EOL Date 15:06:43utc 10-Jul-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir W
   Swell Height 1.5 [meters] Dir SE
   Propellor rpm 135 [avg]  
   Propellor pitch 53 [avg]  
       
  SOL EOL  
   Waterdepth 54.0 54.0 [meters]
   Bottomspeed  4.9 5.0 [knots]
   Featherangle port -6.2 port -7.3 [deg]
   Cable noise 4.3 3.8 [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)   3022 - 3021  
   SOL Dummy Record(s) 3020 - 2991 3020 - 2991 14:35:20 - 14:38:53
   FSP Start of Line 2990 2990 14:39:01
   MSP      
   LSP End of Line 2764 2764 15:06:43
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2763 - 2762  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2990 - 2764 2990 - 2764 14:39:01-15:06:43 Infill 8 Valid Orthogonal line North 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 1025mB, pressure now 1025mB. Using Four by 2.6km streamer. Slight swell burst pressent on records.    

Tape-list
Stream 2
   Shot(s) Files Deck Reel Remark
  3022 - 2763 3022 - 2763 2 10109  
Stream 3
   Shot(s) Files Deck Reel Remark
  3022 - 2763 3022 - 2763 4 10109  

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 slightly deep 8.1-8.6m
ALL     ALL 417-421 Bird depth out of spec Bird C3-1 occational deep, 8.1-8.5
ALL     ALL 1-4, 6, 9, 216-217, 219, 417, 422, 424, 429, 434, 438, 625-630, 632-633, 635, 637, 640-642, 650, 654 Slope alarm > 5% of total line
2972     2972 ALL Gun timing error Gun 5-3 error (ms) : -1.1
2782     2782 ALL Gun timing error Gun 5-3 error (ms) : -1.1
2768-2765     2768-2765 ALL Slope overload  
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 18:28:43utc 11-Jul-2002