ACQUISITION REPORT Sequence-0881
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170C
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A5248JFH881
  Preplot G01A5248
  Direction 265.0°
  SOL Date 23:35:03utc 26-Jun-2002
  EOL Date 00:37:24utc 27-Jun-2002
 Attributes:  
   Wind Force 30.0 [knots] Dir NW
   Swell Height 2.0 [meters] Dir SSE
   Propellor rpm 122 [avg]  
   Propellor pitch 90 [avg]  
       
  SOL EOL  
   Waterdepth 76.0 64.0 [meters]
   Bottomspeed  4.9 4.8 [knots]
   Featherangle port -4.2 sb +5.4 [deg]
   Cable noise 0.0 7.3 [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 -345.0 25.0 -6.0 3542.0 3 8
2 PORT -345.0 -25.0 -6.0 3542.0 3 8

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 -520.0 250.0 -7.0 4600 Nessie-3 12.5 368 0001-0368
2 STBD -520.0 150.0 -7.0 4600 Nessie-3 12.5 368 0369-0736
3 STBD -520.0 50.0 -7.0 4600 Nessie-3 12.5 368 0737-1104
4 PORT -520.0 -50.0 -7.0 4600 Nessie-3 12.5 368 1105-1472
5 PORT -520.0 -150.0 -7.0 4600 Nessie-3 12.5 368 1473-1840
6 PORT -520.0 -250.0 -7.0 4600 Nessie-3 12.5 368 1841-2208

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 0368 0001-0368 0368 0001 - 0368 5.60
3 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0369-0736 0368 0369 - 0736 5.60
4 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0737-1104 0368 0737 - 1104 5.60
5 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1105-1472 0368 1105 - 1472 5.60
6 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1473-1840 0368 1473 - 1840 5.60
7 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1841-2208 0368 1841 - 2208 5.60

Production
  Shotpoint File Time [utc]
   SOL Noise Record(s)   2798 - 2799  
   SOL Dummy Record(s) 2800 - 2809 2800 - 2809 23:33:50 - 23:34:56
   FSP Start of Line 2810 2810 23:35:03
   MSP 3014 3014 23:59:53
   LSP End of Line 3320 3320 00:37:24
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3321 - 3322  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2810 - 3320 2810 - 3320 23:35:03-00:37:24 Infill 12 Valid  
 Remarks:      
   Navigation Streamer depth 7.0mtr. Six streamer line. Pass to south of Hallibut and Fortesque platforms.    
   Recording QC Frontsheet Set 5. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1012mB. Six streamer line. ORTHOGONAL DIRECTION    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2798 - 3322 2798 - 3322 2 10088  
Stream 2
   Shot(s) Files Deck Reel Remark
  2798 - 3322 2798 - 3322 4 10088  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2134, 2067 Noisy Trace(s)  
2810-2890     2810-2890 184-368 Noisy Trace(s) Edit trace range d/t rip current noise
2810-2890     2810-2890 367-736 Noisy Trace(s) Edit trace range d/t rip current noise
2810-2890     2810-2890 920-1104 Noisy Trace(s) Edit trace range d/t rip current noise
2810-2890     2810-2890 1288-1472 Noisy Trace(s) Edit trace range d/t rip current noise
2810-2890     2810-2890 1656-1840 Noisy Trace(s) Edit trace range d/t rip current noise
2810-2890     2810-2890 2024-2208 Noisy Trace(s) Edit trace range d/t rip current noise
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 379, 1127, 1895 Noisy Trace(s) Slightly noisy
ALL     ALL NONE Bad bird Bird/Compass 6-11 no comms
ALL     ALL 1-12, 369-371, 373-381, 383-384, 387, 396, 758, 762, 1116, 1473-1485, 1487, 1841-1852, 1854-1857 Slope alarm > 5% of total line
2938-3202     2938-3202 ALL Rip current noise Rip current noise visible moving from head to tail. Noise dissipating towards tail.
3005     3005 ALL Swell Noise Swell noise increasing 10-15%
3166     3166 ALL Gun timing error Gun 5-4 error (ms) : -1.1
3307     3307 ALL Gun timing error Gun 2-3 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 23:01:37utc 28-Jun-2002