ACQUISITION REPORT Sequence-0035
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421504P035
  Preplot VP421504
  Direction 193.0°
  SOL Date 16:05:21utc 04-Aug-2002
  EOL Date 18:46:44utc 04-Aug-2002
 Attributes:  
   Wind Force 8.0 [knots] Dir SW
   Swell Height 1.5 [meters] Dir SW
   Propellor rpm 135 [avg]  
   Propellor pitch 89 [avg]  
       
  SOL EOL  
   Waterdepth 58.0 64.0 [meters]
   Bottomspeed  4.3 5.0 [knots]
   Featherangle sb +1.3 sb +8.4 [deg]
   Cable noise 9.2 7.1 [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)   1648 - 1649  
   SOL Dummy Record(s) 1650 - 1659 1650 - 1659 16:03:55 - 16:05:12
   FSP Start of Line 1660 1660 16:05:21
   MSP      
   LSP End of Line 2893 2893 18:46:44
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2894 - 2895  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1660 - 2893 1660 - 2893 16:05:21-18:46:44 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 8.0 mtr    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1032mB, pressure now 1027mB.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1648 - 2077 1648 - 2077 1 138  
  2078 - 2507 2078 - 2507 2 139  
  2508 - 2895 2508 - 2895 1 140  
Stream 2
   Shot(s) Files Deck Reel Remark
  1648 - 2077 1648 - 2077 4 138  
  2078 - 2507 2078 - 2507 3 139  
  2508 - 2895 2508 - 2895 4 140  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 109 Killed traces  
ALL     ALL 161, 304 Noisy Channels  
ALL     ALL 2497, 1492 Weak Channels  
ALL     ALL 1657 Spiking channel  
1675     1675 ALL External header lost  
1704     1704 ALL External header lost  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Swell Noise Occ swell noise seen approx 5%
ALL     ALL 1-17, 22, 369-383, 385, 737-745, 1473, 1841-1855, 1857-1859, 1861-1862, 1864-1865, 2209-2232, 2577-2601, 2603, 2605-2606 Slope alarm > 5% of total line
1660     1660 ALL Gun timing error Gun 5-3 error (ms) : -1.1
1669     1669 ALL Gun timing error Gun 2-3 error (ms) : 1.2
1689     1689 ALL Gun timing error Gun 2-3 error (ms) : 1.1
1708     1708 ALL Gun timing error Gun 5-3 error (ms) : -1.2
1919     1919 ALL Gun timing error Gun 2-3 error (ms) : 1.2
2081     2081 ALL Gun timing error Gun 2-3 error (ms) : -1.1
2303     2303 ALL Gun timing error Gun 2-3 error (ms) : -1.1
2325     2325 ALL Gun timing error Gun 2-3 error (ms) : 1.3
2382     2382 ALL Gun timing error Gun 5-3 error (ms) : -1.2
2397     2397 ALL Gun timing error Gun 2-3 error (ms) : 1.2
2494     2494 ALL Gun timing error Gun 5-3 error (ms) : -1.1
2522     2522 ALL Gun timing error Gun 4-1 error (ms) : 1.6
2528     2528 ALL Gun timing error Gun 5-3 error (ms) : -1.3
2580     2580 ALL Gun timing error Gun 4-1 error (ms) : 1.7
2739     2739 ALL Gun timing error Gun 2-3 error (ms) : 1.2
2847     2847 ALL Gun timing error Gun 2-3 error (ms) : -1.2
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 05:02:51utc 05-Aug-2002