ACQUISITION REPORT Sequence-0017
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421104P017
  Preplot VP421104
  Direction 193.0°
  SOL Date 22:51:45utc 31-Jul-2002
  EOL Date 03:15:00utc 01-Aug-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir N
   Swell Height 1.0 [meters] Dir E
   Propellor rpm 137 [avg]  
   Propellor pitch 90 [avg]  
       
  SOL EOL  
   Waterdepth 61.0 67.0 [meters]
   Bottomspeed  4.5 4.6 [knots]
   Featherangle port -0.7 sb +1.5 [deg]
   Cable noise 8.2 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)   1000 - 1001  
   SOL Dummy Record(s) 1002 - 1031 1002 - 1031 22:47:40 - 22:51:37
   FSP Start of Line 1032 1032 22:51:45
   MSP 1521 1521 23:59:52
   LSP End of Line 2947 2947 03:15:00
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2948 - 2949  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1032 - 2947 1032 - 2947 22:51:45-03:15:00 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 8.0mtr.    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1032mB, pressure now 1020mB. Bend noise at SOL noise records.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1000 - 1429 1000 - 1429 2 71  
  1430 - 1859 1430 - 1859 1 72  
  1860 - 2289 1860 - 2289 2 73  
  2290 - 2719 2290 - 2719 1 74  
  2720 - 2949 2720 - 2949 2 75  
Stream 2
   Shot(s) Files Deck Reel Remark
  1000 - 1429 1000 - 1429 3 71  
  1430 - 1859 1430 - 1859 4 72  
  1860 - 2289 1860 - 2289 3 73  
  2290 - 2719 2290 - 2719 4 74  
  2720 - 2949 2720 - 2949 3 75  

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  
1056-1070     1056-1070 2233-2268 Monowing wash Low frequency, high amplitude noise due to monowing wash
1085-1092     1085-1092 2241-2266 Monowing wash Low frequency, high amplitude noise due to monowing wash
1241-1246     1241-1246 2240-2272 Monowing wash Low frequency, high amplitude noise due to monowing wash
1447     1447 ALL Misfire Gun 3-1 error (ms) : 2.1
1602     1602 ALL External header lost  
1930     1930 ALL External header lost  
Warning
Shot(s)     File(s) Trace(s) Type Remark
1050     1050 ALL Gun timing error Gun 4-1 error (ms) : 1.9
1101-1120     1101-1120 2258-2281 Bird depth out of spec Bird C7-4
1162     1162 ALL Gun timing error Gun 4-1 error (ms) : 1.6
1192     1192 ALL Gun timing error Gun 5-4 error (ms) : -1.1
1247-1259     1247-1259 2234-2257 Bird depth out of spec Bird C7-3
1284-1301     1284-1301 2258-2281 Bird depth out of spec Bird C7-4
1331     1331 ALL Gun timing error Gun 3-1 error (ms) : 1.6
1368     1368 ALL Gun timing error Gun 5-4 error (ms) : 1.1
1416     1416 ALL Gun timing error Gun 5-4 error (ms) : -1.2
1442     1442 ALL Gun timing error Gun 5-4 error (ms) : 1.1
1446     1446 ALL Gun timing error Gun 5-4 error (ms) : 1.2
1717     1717 ALL Gun timing error Gun 3-1 error (ms) : 1.7
1719     1719 ALL Gun timing error Gun 3-1 error (ms) : 1.7
1724     1724 ALL Gun timing error Gun 5-4 error (ms) : 1.1
1751     1751 ALL Gun timing error Gun 3-1 error (ms) : 1.9
1764     1764 ALL Gun timing error Gun 5-4 error (ms) : 1.2
2447-2458     2447-2458 369-373 Bird depth out of spec Bird C2-1
2506     2506 ALL Gun timing error Gun 5-3 error (ms) : -1.1
2600     2600 ALL Gun timing error Gun 5-3 error (ms) : -1.2
2648-2658     2648-2658 50-73 Bird depth out of spec Bird C1-4
2697-2709     2697-2709 369-373 Bird depth out of spec Bird C2-1
2856     2856 ALL Gun timing error Gun 5-3 error (ms) : -1.3
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 13:23:02utc 01-Aug-2002