ACQUISITION REPORT Sequence-0026
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421152P026
  Preplot VP421152
  Direction 193.0°
  SOL Date 21:27:30utc 02-Aug-2002
  EOL Date 01:41:22utc 03-Aug-2002
 Attributes:  
   Wind Force 0.0 [knots] $(wind_dir)
   Swell Height 0.0 [meters] $(swell_dir)
   Propellor rpm 135 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 60.0 68.0 [meters]
   Bottomspeed  5.0 0.0 [knots]
   Featherangle sb +8.8 port -6.0 [deg]
   Cable noise 15.1 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)   1015 - 1016  
   SOL Dummy Record(s) 1017 - 1046 1017 - 1046 21:23:51 - 21:27:23
   FSP Start of Line 1047 1047 21:27:30
   MSP 2223 2223 23:59:52
   LSP End of Line 2940 2940 01:41:22
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2941 - 2942  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1047 - 2940 1047 - 2940 21:27:30-01:41:22 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 8.0mtr.    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1032mB, pressure now 1016mB. Excessive Noise on SOL Noise record dt bend in cable from short run in.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1015 - 1444 1015 - 1444 2 110  
  1445 - 1874 1445 - 1874 1 111  
  1875 - 2304 1875 - 2304 2 112  
  2305 - 2734 2305 - 2734 1 113  
  2735 - 2942 2735 - 2942 2 114  
Stream 2
   Shot(s) Files Deck Reel Remark
  1015 - 1444 1015 - 1444 4 110  
  1445 - 1874 1445 - 1874 3 111  
  1875 - 2304 1875 - 2304 4 112  
  2305 - 2734 2305 - 2734 3 113  
  2735 - 2942 2735 - 2942 4 114  

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 1492, 2497 Weak Trace(s) Trace signal less than -6dB of nominal value
1324-1335     1324-1335 2252-2284 Monowing wash Low frequency, high amplitude noise due to monowing wash
1359-1369     1359-1369 2234-2262 Monowing wash Low frequency, high amplitude noise due to monowing wash
1380-1388     1380-1388 2630-2657 Monowing wash Low frequency, high amplitude noise due to monowing wash
1388-1394     1388-1394 2245-2266 Monowing wash Low frequency, high amplitude noise due to monowing wash
1540     1540 ALL Gun timing error Gun 5-3 error (ms) : -1.1
1562     1562 ALL Gun not fired Gun 6-2. Source volume : 3307 cu.in.
1564     1564 ALL Gun not fired Gun 6-2. Source volume : 3307 cu.in.
1566     1566 ALL Gun not fired Gun 6-2. Source volume : 3307 cu.in.
2878     2878 ALL Gun timing error Gun 5-3 error (ms) : 1.2
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-20, 22, 369-383, 385, 737-745, 748, 1841-1855, 1857, 1861-1862, 2209-2226, 2228, 2230-2232, 2577-2601, 2603 Slope alarm > 5% of total line
1118-1124     1118-1124 369-373 Bird depth out of spec Bird C2-1
1356-1361     1356-1361 2258-2281 Bird depth out of spec Bird C7-4
1368-1373     1368-1373 2258-2281 Bird depth out of spec Bird C7-4
1373-1374     1373-1374 369-373 Bird depth out of spec Bird C2-1
1375-1393     1375-1393 2258-2281 Bird depth out of spec Bird C7-4
1380-1393     1380-1393 2650-2673 Bird depth out of spec Bird C8-5
1386-1402     1386-1402 2282-2305 Bird depth out of spec Bird C7-5
1414     1414 ALL Gun timing error Gun 5-3 error (ms) : -1.1
1436     1436 ALL Gun timing error Gun 5-4 error (ms) : 1.1
1439-1447     1439-1447 2282-2305 Bird depth out of spec Bird C7-5
1442     1442 ALL Gun timing error Gun 5-3 error (ms) : -1.1
1635-1636     1635-1636 NONE Bird depth out of spec Bird C1-8
1638-1640     1638-1640 NONE Bird depth out of spec Bird C1-8
1644-1645     1644-1645 NONE Bird depth out of spec Bird C2-6
1660     1660 NONE Bird depth out of spec Bird C2-7
1734     1734 ALL Gun timing error Gun 5-4 error (ms) : 1.1
1775-1776     1775-1776 NONE Bird depth out of spec Bird C7-6
1780     1780 NONE Bird depth out of spec Bird C7-6
1803-1804     1803-1804 NONE Bird depth out of spec Bird C7-4
1810-1811     1810-1811 NONE Bird depth out of spec Bird C7-4
1813-1818     1813-1818 NONE Bird depth out of spec Bird C7-4
1818-1820     1818-1820 NONE Bird depth out of spec Bird C7-5
1837     1837 NONE Bird depth out of spec Bird C7-3
1841-1849     1841-1849 NONE Bird depth out of spec Bird C7-4
1851     1851 NONE Bird depth out of spec Bird C2-1
1853-1855     1853-1855 NONE Bird depth out of spec Bird C7-4
1914     1914 NONE Bird depth out of spec Bird C2-1
1928     1928 ALL Gun timing error Gun 5-3 error (ms) : 1.1
1958     1958 NONE Bird depth out of spec Bird C3-15
1970     1970 NONE Bird depth out of spec Bird C5-1
1988     1988 ALL Gun timing error Gun 5-4 error (ms) : 1.3
2048-2049     2048-2049 NONE Bird depth out of spec Bird C1-5
2070     2070 ALL Gun timing error Gun 5-3 error (ms) : -1.1
2072     2072 ALL Gun timing error Gun 5-3 error (ms) : 1.2
2123-2126     2123-2126 NONE Bird depth out of spec Bird C2-1
2131-2132     2131-2132 NONE Bird depth out of spec Bird C2-1
2218     2218 ALL Gun timing error Gun 5-3 error (ms) : -1.2
2308     2308 ALL Gun timing error Gun 5-3 error (ms) : -1.1
2373     2373 NONE Bird depth out of spec Bird C2-7
2380     2380 ALL Gun timing error Gun 5-3 error (ms) : -1.1
2388-2389     2388-2389 NONE Bird depth out of spec Bird C2-1
2474     2474 ALL Gun timing error Gun 5-3 error (ms) : 1.1
2584     2584 ALL Gun timing error Gun 5-3 error (ms) : -1.2
2675-2678     2675-2678 NONE Bird depth out of spec Bird C2-1
2681     2681 NONE Bird depth out of spec Bird C2-1
2683     2683 NONE Bird depth out of spec Bird C2-1
2826     2826 ALL Gun timing error Gun 5-3 error (ms) : -1.1
2834     2834 ALL Gun timing error Gun 5-4 error (ms) : 1.1
Comment
Shot(s)     File(s) Trace(s) Type Remark
1567-2941     1567- ALL Gun disabled Gun 6-2. Source volume at shot 1567 : 3307 cu.in.


 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 11:54:19utc 03-Aug-2002