ACQUISITION REPORT Sequence-0039
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421472P039
  Preplot VP421472
  Direction 193.0°
  SOL Date 15:23:55utc 05-Aug-2002
  EOL Date 18:12:57utc 05-Aug-2002
 Attributes:  
   Wind Force 6.0 [knots] Dir N
   Swell Height 1.5 [meters] $(swell_dir)
   Propellor rpm 135 [avg]  
   Propellor pitch 89 [avg]  
       
  SOL EOL  
   Waterdepth 59.0 64.0 [meters]
   Bottomspeed  4.2 4.8 [knots]
   Featherangle port -2.6 sb +4.3 [deg]
   Cable noise 6.0 0.0 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Filter Slope 18 18  
   Port Volume 3542.0 3542.0  
   Stbd Volume 3542.0 3542.0  

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 -7.0 3542.0 3 24
2 PORT -345.0 -25.0 -7.0 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 -8.0 4600 Nessie-3 12.5 368 0001-0368
2 STBD -520.0 250.0 -8.0 4600 Nessie-3 12.5 368 0369-0736
3 STBD -520.0 150.0 -8.0 4600 Nessie-3 12.5 368 0737-1104
4 STBD -520.0 50.0 -8.0 4600 Nessie-3 12.5 368 1105-1472
5 PORT -520.0 -50.0 -8.0 4600 Nessie-3 12.5 368 1473-1840
6 PORT -520.0 -150.0 -8.0 4600 Nessie-3 12.5 368 1841-2208
7 PORT -520.0 -250.0 -8.0 4600 Nessie-3 12.5 368 2209-2576
8 PORT -520.0 -350.0 -8.0 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)   1638 - 1639  
   SOL Dummy Record(s) 1640 - 1649 1640 - 1649 15:22:28 - 15:23:47
   FSP Start of Line 1650 1650 15:23:55
   MSP      
   LSP End of Line 2897 2897 18:12:57
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2898 - 2901  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1650 - 2897 1650 - 2897 15:23:55-18:12:57 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 8.0 mtr    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1032mB, pressure now 1016mB. No noise results @ eol d/t operator error.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1638 - 2067 1638 - 2067 2 154  
  2068 - 2497 2068 - 2497 1 155  
  2498 - 2901 2498 - 2901 2 156  
Stream 2
   Shot(s) Files Deck Reel Remark
  1638 - 2067 1638 - 2067 4 154  
  2068 - 2497 2068 - 2497 3 155  
  2498 - 2901 2498 - 2901 4 156  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 109 Killed traces  
ALL     ALL 2497, 1492 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 161, 304 Noisy Trace(s)  
ALL     ALL 1657 Spiking Trace Occ spiking
2329     2329 ALL External header lost  
2760     2760 ALL Gun timing error Gun 6-8 error (ms) : 1.6
2762     2762 ALL Gun timing error Gun 6-8 error (ms) : 1.6
2764     2764 ALL Gun timing error Gun 6-8 error (ms) : 1.8
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-17, 22, 369-383, 385, 737-745, 748, 1841-1855, 1857-1859, 1861-1862, 1864, 2209-2232, 2235, 2577-2601, 2603, 2605, 2607 Slope alarm > 5% of total line
2766     2766 ALL Gun timing error Gun 6-8 error (ms) : 1.3
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 04:35:11utc 06-Aug-2002