ACQUISITION REPORT Sequence-0038
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421376K038
  Preplot VP421376
  Direction 13.0°
  SOL Date 08:53:40utc 05-Aug-2002
  EOL Date 12:42:16utc 05-Aug-2002
 Attributes:  
   Wind Force 7.0 [knots] Dir NW
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 136 [avg]  
   Propellor pitch 86 [avg]  
       
  SOL EOL  
   Waterdepth 66.0 55.0 [meters]
   Bottomspeed  4.6 4.8 [knots]
   Featherangle port -1.2 sb +6.7 [deg]
   Cable noise 5.6 5.9 [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 08:52:23 - 08:53:32
   FSP Start of Line 2787 2787 08:53:40
   MSP      
   LSP End of Line 994 994 12:42:16
   EOL Dummy Record(s)      
   EOL Noise Record(s)   993 - 993  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2787 - 994 2787 - 994 08:53:40-12:42:16 Reshoot 16 Valid  
 Remarks:      
   Navigation Streamer depth 8.0mtr    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1032mB, pressure now 1020mB.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2799 - 2370 2799 - 2370 1 149  
  2369 - 1940 2369 - 1940 2 150  
  1939 - 1510 1939 - 1510 2 151  
  1509 - 1080 1509 - 1080 1 152  
  1079 - 993 1079 - 993 1 153  
Stream 2
   Shot(s) Files Deck Reel Remark
  2799 - 2370 2799 - 2370 3 149  
  2369 - 1940 2369 - 1940 4 150  
  1939 - 1510 1939 - 1510 3 151  
  1509 - 1080 1509 - 1080 4 152  
  1079 - 993 1079 - 993 3 153  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL-995 109 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
2635     2635 ALL External header lost  
2492-2486     2492-2486 466-489 Bird depth out of spec Bird C2-6 max depth 10.5mtr
2484-2479     2484-2479 490-513 Bird depth out of spec Bird C2-7 max depth 10.3 mtr
2260-2242     2260-2242 2246-2317 Monowing wash Low frequency, high amplitude noise due to monowing wash
1840     1840 ALL External header lost  
1694     1694 424-425 Streamer noise Debris
1687     1687 437-438 Streamer noise Debris
1433     1433 1657 Streamer noise Debris
1030-1014     1030-1014 2237-2292 Monowing wash Low frequency, high amplitude noise due to monowing wash
Warning
Shot(s)     File(s) Trace(s) Type Remark
2786     2786 ALL Gun timing error Gun 5-4 error (ms) : -1.2
2671-2658     2671-2658 NONE Bird depth out of spec Bird C7-4
2501-2487     2501-2487 NONE Bird depth out of spec Bird C2-4
2256-2246     2256-2246 NONE Bird depth out of spec Bird C7-5
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 23:07:06utc 05-Aug-2002