ACQUISITION REPORT Sequence-0018
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421296P018
  Preplot VP421296
  Direction 13.0°
  SOL Date 04:43:57utc 01-Aug-2002
  EOL Date 08:39:38utc 01-Aug-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir NE
   Swell Height 0.5 [meters] Dir N
   Propellor rpm 137 [avg]  
   Propellor pitch 86 [avg]  
       
  SOL EOL  
   Waterdepth 66.0 56.0 [meters]
   Bottomspeed  4.39 4.9 [knots]
   Featherangle port -0.8 sb +4.7 [deg]
   Cable noise 12.24 5.6 [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)   2830 - 2829  
   SOL Dummy Record(s) 2828 - 2799 2828 - 2799 04:39:48 - 04:43:48
   FSP Start of Line 2798 2798 04:43:57
   MSP      
   LSP End of Line 969 969 08:39:38
   EOL Dummy Record(s)      
   EOL Noise Record(s)   968 - 967  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2798 - 969 2798 - 969 04:43:57-08:39:38 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 8.0mtr.    
   Recording QC Frontsheet Set 5. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1015mB. Bend noise present at SOL noise record.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2830 - 2401 2830 - 2401 1 76  
  2400 - 1971 2400 - 1971 2 77  
  1970 - 1541 1970 - 1541 1 78  
  1540 - 1111 1540 - 1111 2 79  
  1110 - 967 1110 - 967 1 80  
Stream 2
   Shot(s) Files Deck Reel Remark
  2830 - 2401 2830 - 2401 4 76  
  2400 - 1971 2400 - 1971 3 77  
  1970 - 1541 1970 - 1541 4 78  
  1540 - 1111 1540 - 1111 3 79  
  1110 - 967 1110 - 967 4 80  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 109 Killed traces  
ALL     ALL 161, 304 Noisy Trace(s)  
ALL     ALL 2497, 1492 Weak Trace(s) Trace signal less than -6dB of nominal value
2636     2636 ALL External header lost  
1882-1874     1882-1874 49-96 Monowing wash Low frequency, high amplitude noise due to monowing wash
1871-1856     1871-1856 98-121 Bird depth out of spec Bird C1-6, max depth 11.6m
1751-1736     1751-1736 59-125 Monowing wash Low frequency, high amplitude noise due to monowing wash
Warning
Shot(s)     File(s) Trace(s) Type Remark
2529-2512     2529-2512 50-73 Bird depth out of spec Bird C1-4
2527     2527 ALL Gun timing error Gun 3-1 error (ms) : 1.6
2525-2511     2525-2511 74-97 Bird depth out of spec Bird C1-5
2524-2513     2524-2513 418-441 Bird depth out of spec Bird C2-4
2520-2510     2520-2510 98-121 Bird depth out of spec Bird C1-6
2520-2503     2520-2503 442-465 Bird depth out of spec Bird C2-5
2517-2499     2517-2499 466-489 Bird depth out of spec Bird C2-6
2460     2460 ALL Gun timing error Gun 5-3 error (ms) : -1.1
2441-2418     2441-2418 74-97 Bird depth out of spec Bird C1-5
2440-2419     2440-2419 98-121 Bird depth out of spec Bird C1-6
2431-2418     2431-2418 442-465 Bird depth out of spec Bird C2-5
2293-2284     2293-2284 2258-2281 Bird depth out of spec Bird C7-4
2216-2207     2216-2207 74-97 Bird depth out of spec Bird C1-5
2150-2141     2150-2141 490-513 Bird depth out of spec Bird C2-7
1899-1881     1899-1881 98-121 Bird depth out of spec Bird C1-6
1897-1848     1897-1848 122-145 Bird depth out of spec Bird C1-7
1864-1846     1864-1846 466-489 Bird depth out of spec Bird C2-6
1855-1849     1855-1849 98-121 Bird depth out of spec Bird C1-6
1853-1839     1853-1839 490-513 Bird depth out of spec Bird C2-7
1849-1832     1849-1832 514-537 Bird depth out of spec Bird C2-8
1837-1827     1837-1827 538-561 Bird depth out of spec Bird C2-9
1738-1727     1738-1727 122-145 Bird depth out of spec Bird C1-7
1732-1717     1732-1717 98-121 Bird depth out of spec Bird C1-6
1727-1697     1727-1697 466-489 Bird depth out of spec Bird C2-6
1725-1711     1725-1711 122-145 Bird depth out of spec Bird C1-7
1721-1702     1721-1702 146-169 Bird depth out of spec Bird C1-8
1713-1703     1713-1703 490-513 Bird depth out of spec Bird C2-7
1478     1478 ALL Gun timing error Gun 5-3 error (ms) : -1.2
1419-1395     1419-1395 122-145 Bird depth out of spec Bird C1-7
1240     1240 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 18:46:48utc 01-Aug-2002