ACQUISITION REPORT Sequence-0041
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421456P041
  Preplot VP421456
  Direction 193.0°
  SOL Date 02:41:29utc 06-Aug-2002
  EOL Date 04:09:21utc 06-Aug-2002
 Attributes:  
   Wind Force 28.0 [knots] Dir WNW
   Swell Height 2.0 [meters] Dir WNW
   Propellor rpm 135 [avg]  
   Propellor pitch 89 [avg]  
       
  SOL EOL  
   Waterdepth 60.0 64.0 [meters]
   Bottomspeed  3.1 3.0 [knots]
   Featherangle port -14.0 port -13.0 [deg]
   Cable noise 12.9 28.8 [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)   1633 - 1634  
   SOL Dummy Record(s) 1635 - 1644 1635 - 1644 02:39:38 - 02:41:17
   FSP Start of Line 1645 1645 02:41:29
   MSP      
   LSP End of Line 2105 2105 04:09:21
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2900 - 2901  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1645 - 2105 1645 - 2105 02:41:29-04:09:21 Prime 0 Scratched Line terminated due to adverse sea condition - ALL DATA SCRATCHED
 Remarks:      
   Navigation Streamer depth 8.0 mtr    
   Recording QC ### ALL DATA SCRATHED D/T WEATHER ### Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1032mB, pressure now 1010mB.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1633 - 2062 1633 - 2062 1 161  
  2063 - 2901 2063 - 2901 2 162  
Stream 2
   Shot(s) Files Deck Reel Remark
  1633 - 2062 1633 - 2062 3 161  
  2063 - 2901 2063 - 2901 4 162  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 109 Killed traces  
ALL     ALL 1657 Spiking Trace(s)  
ALL     ALL 161, 304 Noisy Trace(s)  
ALL     ALL 1492, 2497 Weak Trace(s) Trace signal less than -6dB of nominal value
Warning
Shot(s)     File(s) Trace(s) Type Remark
1910     1910 ALL Gun timing error Gun 5-4 error (ms) : -1.1
1940     1940 ALL Gun timing error Gun 5-4 error (ms) : -1.3
1990     1990 ALL Gun timing error Gun 5-4 error (ms) : -1.1
2026     2026 ALL Gun timing error Gun 5-4 error (ms) : -1.1
2088     2088 ALL Gun timing error Gun 5-4 error (ms) : 1.1
Comment
Shot(s)     File(s) Trace(s) Type Remark
1875     1875 ALL Bird depth change Streamer depth down to 10mtrs due to large swell
1890     1890 ALL Bird depth out of spec Streamer depth settled at 10mtrs


 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 06:58:12utc 09-Aug-2002