ACQUISITION REPORT Sequence-0034
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421376P034
  Preplot VP421376
  Direction 13.0°
  SOL Date 09:39:52utc 04-Aug-2002
  EOL Date 13:24:39utc 04-Aug-2002
 Attributes:  
   Wind Force 17.0 [knots] Dir SW
   Swell Height 1.5 [meters] Dir SW
   Propellor rpm 137 [avg]  
   Propellor pitch 90 [avg]  
       
  SOL EOL  
   Waterdepth 66.0 54.0 [meters]
   Bottomspeed  4.7 4.9 [knots]
   Featherangle sb +0.1 sb +4.3 [deg]
   Cable noise 8.0 6.2 [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)   2799 - 2798  
   SOL Dummy Record(s) 2797 - 2788 2797 - 2788 09:38:35 - 09:39:45
   FSP Start of Line 2787 2787 09:39:52
   MSP      
   LSP End of Line 994 994 13:24:39
   EOL Dummy Record(s)      
   EOL Noise Record(s)   993 - 993  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2787 - 994 2787 - 994 09:39:52-13:24:39 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 8.0mtr    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1032mB, pressure now 1015mB. High noise value on sol noise test due to shot recorded.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2799 - 2370 2799 - 2370 1 133  
  2369 - 1940 2369 - 1940 2 134  
  1939 - 1510 1939 - 1510 1 135  
  1509 - 1080 1509 - 1080 2 136  
  1079 - 993 1079 - 993 1 137  
Stream 2
   Shot(s) Files Deck Reel Remark
  2799 - 2370 2799 - 2370 3 133  
  2369 - 1940 2369 - 1940 4 134  
  1939 - 1510 1939 - 1510 3 135  
  1509 - 1080 1509 - 1080 4 136  
  1079 - 993 1079 - 993 3 137  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL-995 109 Killed traces  
ALL     ALL 161, 304 Noisy Trace(s)  
ALL     ALL 1492, 2497 Weak Trace(s) Trace signal less than -6dB of nominal value
2068-2057     2068-2057 50-73 Bird depth out of spec Bird C1-4 max depth 10.4mtr
2053-2046     2053-2046 418-441 Bird depth out of spec Bird C2-4 max depth 10.5m
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-13, 15-17, 22, 369-383, 737-745, 1841-1852, 1857, 1861-1862, 2209-2226, 2228, 2577-2601, 2603 Slope alarm > 5% of total line
2113     2113 ALL Gun timing error Gun 2-3 error (ms) : -1.1
2071-2059     2071-2059 NONE Bird depth out of spec Bird C1-3
2059-2048     2059-2048 NONE Bird depth out of spec Bird C2-3
2058-2041     2058-2041 NONE Bird depth out of spec Bird C1-6
2056-2045     2056-2045 NONE Bird depth out of spec Bird C1-4
2043-2033     2043-2033 NONE Bird depth out of spec Bird C2-5
1785     1785 ALL Gun timing error Gun 2-3 error (ms) : -1.1
1482     1482 ALL Gun timing error Gun 5-3 error (ms) : 1.1
1425     1425 ALL Gun timing error Gun 2-3 error (ms) : -1.1
1272     1272 ALL Gun timing error Gun 5-3 error (ms) : -1.1
1141     1141 ALL Gun timing error Gun 2-3 error (ms) : -1.1
1113     1113 ALL Gun timing error Gun 2-3 error (ms) : -1.1
1100     1100 ALL Gun timing error Gun 5-3 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 23:36:28utc 04-Aug-2002