ACQUISITION REPORT Sequence-0016
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421280P016
  Preplot VP421280
  Direction 13.0°
  SOL Date 17:13:08utc 31-Jul-2002
  EOL Date 21:14:22utc 31-Jul-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir NE
   Swell Height 0.5 [meters] Dir NW
   Propellor rpm 137 [avg]  
   Propellor pitch 80 [avg]  
       
  SOL EOL  
   Waterdepth 66.2 56.0 [meters]
   Bottomspeed  4.5 4.9 [knots]
   Featherangle port -3.7 sb +5.2 [deg]
   Cable noise 7.2 5.83 [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)   2832 - 2831  
   SOL Dummy Record(s) 2830 - 2801 2830 - 2801 17:09:06 - 17:13:00
   FSP Start of Line 2800 2800 17:13:08
   MSP      
   LSP End of Line 964 964 21:14:22
   EOL Dummy Record(s)      
   EOL Noise Record(s)   963 - 962  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2800 - 964 2800 - 964 17:13:08-21:14:22 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 8.0mtr.    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1032mB, pressure now 1020mB. Excessive Noise on SOL Noise record dt bend in cable from short run in.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2832 - 2403 2832 - 2403 1 66  
  2402 - 1973 2402 - 1973 2 67  
  1972 - 1543 1972 - 1543 1 68  
  1542 - 1113 1542 - 1113 2 69  
  1112 - 962 1112 - 962 1 70  
Stream 2
   Shot(s) Files Deck Reel Remark
  2832 - 2403 2832 - 2403 4 66  
  2402 - 1973 2402 - 1973 3 67  
  1972 - 1543 1972 - 1543 4 68  
  1542 - 1113 1542 - 1113 3 69  
  1112 - 962 1112 - 962 4 70  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 161, 304 Noisy Trace(s)  
ALL     ALL 1492, 2497 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 109 Killed traces  
Warning
Shot(s)     File(s) Trace(s) Type Remark
2587-2570     2587-2570 74-97 Bird depth out of spec Bird C1-5
2575-2548     2575-2548 466-489 Bird depth out of spec Bird C2-6
2573-2561     2573-2561 442-465 Bird depth out of spec Bird C2-5
2384     2384 ALL Gun timing error Gun 5-4 error (ms) : 1.2
2190     2190 ALL Gun timing error Gun 5-3 error (ms) : -1.4
1760     1760 ALL Gun timing error Gun 5-4 error (ms) : 1.1
1670     1670 ALL Gun timing error Gun 5-3 error (ms) : -1.1
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 07:26:12utc 01-Aug-2002