ACQUISITION REPORT Sequence-0113
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3632A113
  Preplot G01A3632
  Direction 198.0°
  SOL Date 14:03:57utc 08-Dec-2001
  EOL Date 18:54:16utc 08-Dec-2001
 Attributes:  
   Wind Force 18.0 [knots] Dir ENE
   Swell Height 1.5 [meters] Dir E
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 48.4 63.0 [meters]
   Bottomspeed  4.7 5.3 [knots]
   Featherangle sb +4.0 sb +10.8 [deg]
   Cable noise 8.7 7.4 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Port Volume 3542 3542  
   Stbd Volume 3542 3387  

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 24
2 PORT -345.0 -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 -520.0 350.0 -7.0 4600 Nessie-3 12.5 368 0001-0368
2 STBD -520.0 250.0 -7.0 4600 Nessie-3 12.5 368 0369-0736
3 STBD -520.0 150.0 -7.0 4600 Nessie-3 12.5 368 0737-1104
4 STBD -520.0 50.0 -7.0 4600 Nessie-3 12.5 368 1105-1472
5 PORT -520.0 -50.0 -7.0 4600 Nessie-3 12.5 368 1473-1840
6 PORT -520.0 -150.0 -7.0 4600 Nessie-3 12.5 368 1841-2208
7 PORT -520.0 -250.0 -7.0 4600 Nessie-3 12.5 368 2209-2576
8 PORT -520.0 -350.0 -7.0 4600 Nessie-3 12.5 368 2577-2944

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
8 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 2209-2576 0368 2209 - 2576 5.60
9 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 2577-2944 0368 2577 - 2944 5.60

Production
  Shotpoint File Time [utc]
   SOL Noise Record(s)   4149 - 4148  
   SOL Dummy Record(s) 4147 - 4118 4147 - 4118 14:00:10 - 14:03:49
   FSP Start of Line 4117 4117 14:03:57
   MSP      
   LSP End of Line 1693 1693 18:54:16
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1682 - 1681  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4117 - 1693 4117 - 1693 14:03:57-18:54:16 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017 mB, pressure now 1015 mB. Str 8 Bird 1 mask on External Header. Str7 Bird 17 intermited bad communication.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4149 - 3720 4149 - 3720 1 456  
  3719 - 3399 3719 - 3399 1 457  
  3398 - 3185 3398 - 3185 2 458  
  3184 - 2888 3184 - 2888 1 459  
  2887 - 2746 2887 - 2746 2 460  
  2745 - 2316 2745 - 2316 1 461  
  2315 - 1886 2315 - 1886 2 462  
  1885 - 1682 1885 - 1682 1 463  
Stream 2
   Shot(s) Files Deck Reel Remark
  4149 - 3720 4149 - 3720 3 456  
  3719 - 3399 3719 - 3399 4 457  
  3398 - 3185 3398 - 3185 3 458  
  3184 - 2888 3184 - 2888 4 459  
  2887 - 2746 2887 - 2746 3 460  
  2745 - 2316 2745 - 2316 4 461  
  2315 - 1886 2315 - 1886 3 462  
  1885 - 1682 1885 - 1682 4 463  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 1948 Killed traces  
ALL     ALL 1191, 2764, 2806 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 839, 1657 Spiking Trace(s)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2304 Cross feed Fails cross feed
ALL     ALL 2577-2581 Bird depth out of spec Bird C8-1 deep all line, max 8.4 m
ALL     ALL 1-12, 16, 369-380, 737-753, 755, 758, 763-764, 1106-1113, 1126, 1130-1131, 1484-1485, 1489, 1841, 1845-1846, 1848-1850, 1852-1853, 1855-1856, 2209-2219, 2577, 2585 Slope alarm > 5% of total line
3985     3985 ALL Gun timing error Gun 2-2 error (ms) : -1.8
3876     3876 ALL Gun timing error Gun 5-3 error (ms) : 1.1
3692     3692 ALL Gun timing error Gun 5-3 error (ms) : 1.2
3661     3661 ALL Gun timing error Gun 2-2 error (ms) : -1.7
3421     3421 ALL Gun not fired Gun-status lost for gun 1-5
2589     2589 ALL Gun timing error Gun 2-2 error (ms) : -1.6
2505     2505 ALL Gun timing error Gun 2-2 error (ms) : -1.6
2410     2410 ALL Gun timing error Gun 6-3 error (ms) : 1.3
Comment
Shot(s)     File(s) Trace(s) Type Remark
3419     3419 ALL Gun disabled Gun 1-5. New source volume 3387 cu.inch.
3000     3000 ALL Swell Noise swell noise effecting 5% traces 8uBs RMS
2400     2400 ALL Swell Noise swell noise effecting 5% traces 7uBs RMS


 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 20:42:34utc 08-Dec-2001