ACQUISITION REPORT Sequence-0916
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170D
  Survey Type 4 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4400JFL916
  Preplot G01A4400
  Direction 198.0°
  SOL Date 15:42:14utc 12-Jul-2002
  EOL Date 16:23:12utc 12-Jul-2002
 Attributes:  
   Wind Force 8.0 [knots] Dir NE
   Swell Height 1.0 [meters] Dir W
   Propellor rpm 135 [avg]  
   Propellor pitch 60 [avg]  
       
  SOL EOL  
   Waterdepth 85.0 95.0 [meters]
   Bottomspeed  4.7 4.7 [knots]
   Featherangle port -5.0 sb +1.3 [deg]
   Cable noise 7.2 4.0 [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)   2762 - 2761  
   SOL Dummy Record(s) 2760 - 2731 2760 - 2731 15:38:17 - 15:42:06
   FSP Start of Line 2730 2730 15:42:14
   MSP      
   LSP End of Line 2440 2440 16:23:12
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2439 - 2438  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2730 - 2440 2730 - 2440 15:42:14-16:23:12 Infill 8 Valid Orthogonal line East 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 1015mB. Using Four by 2.6km streamer. Side swipes present on records.    

Tape-list
Stream 2
   Shot(s) Files Deck Reel Remark
  2762 - 2439 2762 - 2439 2 10124  
Stream 3
   Shot(s) Files Deck Reel Remark
  2762 - 2439 2762 - 2439 4 10124  

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 occational deep 8.1-8.6m
ALL     ALL 1-10, 22, 24, 44, 209-210, 213-214, 417-425, 437-438, 625-640, 648-650, 656 Slope alarm > 5% of total line
2555-2469     2555-2469 ALL Streamer noise Low frequency noise dt rip currents approx 15-25uB
2528     2528 ALL Gun timing error Gun 5-3 error (ms) : -1.2
2524     2524 ALL Gun timing error Gun 5-3 error (ms) : -1.1
Comment
Shot(s)     File(s) Trace(s) Type Remark
2550     2550 ALL Streamer noise Vessel speeding up


 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 02:49:00utc 13-Jul-2002