ACQUISITION REPORT Sequence-0108
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3504A108
  Preplot G01A3504
  Direction 198.0°
  SOL Date 21:25:33utc 06-Dec-2001
  EOL Date 02:52:05utc 07-Dec-2001
 Attributes:  
   Wind Force 20.0 [knots] Dir SW
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 48.0 66.9 [meters]
   Bottomspeed  4.6 4.6 [knots]
   Featherangle sb +3.1 port -0.6 [deg]
   Cable noise 9.5 9.38 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Port Volume 3542 3542  
   Stbd Volume 3542 3378  

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)   4117 - 4116  
   SOL Dummy Record(s) 4115 - 4086 4115 - 4086 21:21:33 - 21:25:25
   FSP Start of Line 4085 4085 21:25:33
   MSP 2924 2924 23:59:53
   LSP End of Line 1638 1638 02:52:05
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1637 - 1637  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4085 - 1638 4085 - 1638 21:25:33-02:52:05 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 1000 mB. Str 8 Bird 1 and Str 1 Bird 17 mask on External Header.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4117 - 3688 4117 - 3688 2 442  
  3687 - 3258 3687 - 3258 1 443  
  3257 - 2828 3257 - 2828 2 444  
  2827 - 2398 2827 - 2398 2 445  
  2397 - 1968 2397 - 1968 2 446  
  1967 - 1723 1967 - 1723 2 447  
  1722 - 1637 1722 - 1637 1 448  
Stream 2
   Shot(s) Files Deck Reel Remark
  4117 - 3688 4117 - 3688 3 442  
  3687 - 3258 3687 - 3258 3 443  
  3257 - 2828 3257 - 2828 4 444  
  2827 - 2398 2827 - 2398 3 445  
  2397 - 1968 2397 - 1968 3 446  
  1967 - 1723 1967 - 1723 4 447  
  1722 - 1638 1722 - 1638 3 448  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL-1639 1948 Killed traces  
ALL     ALL 1191, 2764, 2806 Weak Trace(s) Trace signal less than -3dB of nominal value
ALL     ALL 839, 1657 Spiking Trace(s)  
3381-3365     3381-3365 2307-2323 Bird depth out of spec Bird C7-6
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2577-2581 Bird depth out of spec Bird C8-1 deep all line, max 8.5
ALL     ALL 2304 Crossfeed Fails crossfeed test
ALL     ALL 1-12, 16, 369-374, 376-380, 737-753, 755, 758, 764, 1105-1113, 1122-1123, 1125-1126, 1130-1133, 1135, 1841-1846, 1849-1850, 1852, 1855-1856, 2209-2218, 2577 Slope alarm > 5% of total line
3207     3207 ALL Gun not fired Gun-status lost for gun 1-5
3205     3205 ALL Gun not fired Gun-status lost for gun 1-5
2533     2533 ALL Gun timing error Gun 2-2 error (ms) : -1.6
2442     2442 1841-1845 Bird depth out of spec Bird C6-1
1936     1936 1323-1339 Bird depth out of spec Bird C4-11
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Swell Noise Swell noise affecting 5% of traces
3400     3400 ALL Swell Noise Swell noise affecting <5% of traces
3203     3203 ALL Gun disabled Gun 1-5. New source volume 3387 cu.inch.


 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 05:59:37utc 07-Dec-2001