ACQUISITION REPORT Sequence-0011
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421056P011
  Preplot VP421056
  Direction 193.0°
  SOL Date 10:39:47utc 30-Jul-2002
  EOL Date 15:15:55utc 30-Jul-2002
 Attributes:  
   Wind Force 8.0 [knots] Dir SE
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 137 [avg]  
   Propellor pitch 90 [avg]  
       
  SOL EOL  
   Waterdepth 61.5 68.0 [meters]
   Bottomspeed  4.06 4.3 [knots]
   Featherangle port -4.3 sb +6.6 [deg]
   Cable noise 6.55 6.3 [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 3512.0  

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)   985 - 986  
   SOL Dummy Record(s) 987 - 1016 987 - 1016 10:35:18 - 10:39:38
   FSP Start of Line 1017 1017 10:39:47
   MSP      
   LSP End of Line 2953 2953 15:15:55
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2954 - 2955  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1017 - 2953 1017 - 2953 10:39:47-15:15:55 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 8.0mtr.    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1031mB    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  985 - 1414 985 - 1414 1 42  
  1415 - 1844 1415 - 1844 1 43  
  1845 - 2274 1845 - 2274 1 44  
  2275 - 2704 2275 - 2704 1 45  
  2705 - 2955 2705 - 2955 1 46  
Stream 2
   Shot(s) Files Deck Reel Remark
  985 - 1414 985 - 1414 3 42  
  1415 - 1844 1415 - 1844 4 43  
  1845 - 2274 1845 - 2274 3 44  
  2275 - 2704 2275 - 2704 4 45  
  2705 - 2955 2705 - 2955 3 46  

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
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-20, 22, 26, 369-385, 737-746, 748, 752, 1473, 1841-1862, 1864-1865, 2209-2235, 2241, 2577-2601, 2603, 2605-2607, 2609, 2611-2614, 2616 Slope alarm > 5% of total line
1091     1091 ALL Gun timing error Gun 3-1 error (ms) : 1.7
1104     1104 ALL Gun timing error Gun 5-4 error (ms) : -1.2
1711-1723     1711-1723 98-121 Bird depth out of spec Bird C1-6
2059-2069     2059-2069 74-97 Bird depth out of spec Bird C1-5
2231     2231 ALL Gun timing error Gun 3-1 error (ms) : 1.7
2267     2267 ALL External header lost  
2545     2545 ALL Gun timing error Gun 3-1 error (ms) : 1.6
2558-2571     2558-2571 98-121 Bird depth out of spec Bird C1-6
2656-2667     2656-2667 490-513 Bird depth out of spec Bird C2-7
2669-2680     2669-2680 514-537 Bird depth out of spec Bird C2-8
Comment
Shot(s)     File(s) Trace(s) Type Remark
1363     1363 ALL Gun not fired Gun-status lost for gun 3-8
1365     1365 ALL Gun not fired Gun-status lost for gun 3-8
1367     1367 ALL Gun disabled Gun 3-8. New source volume 3512 cu.inch.


 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 01:41:17utc 31-Jul-2002