ACQUISITION REPORT Sequence-0024
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421136P024
  Preplot VP421136
  Direction 193.0°
  SOL Date 09:51:45utc 02-Aug-2002
  EOL Date 14:17:31utc 02-Aug-2002
 Attributes:  
   Wind Force 3.0 [knots] Dir N
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 137 [avg]  
   Propellor pitch 88 [avg]  
       
  SOL EOL  
   Waterdepth 60.0 68.0 [meters]
   Bottomspeed  4.66 4.5 [knots]
   Featherangle sb +3.5 port -1.3 [deg]
   Cable noise 13.94 5.8 [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)   1010 - 1011  
   SOL Dummy Record(s) 1012 - 1041 1012 - 1041 09:47:54 - 09:51:37
   FSP Start of Line 1042 1042 09:51:45
   MSP      
   LSP End of Line 2943 2943 14:17:31
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2944 - 2945  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1042 - 2943 1042 - 2943 09:51:45-14:17:31 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 8.0mtr.    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1032mB, pressure now 1014mB. Excessive Noise on SOL Noise record dt bend in cable from short run in.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1010 - 1439 1010 - 1439 2 100  
  1440 - 1869 1440 - 1869 1 101  
  1870 - 2299 1870 - 2299 2 102  
  2300 - 2729 2300 - 2729 1 103  
  2730 - 2945 2730 - 2945 2 104  
Stream 2
   Shot(s) Files Deck Reel Remark
  1010 - 1439 1010 - 1439 4 100  
  1440 - 1869 1440 - 1869 3 101  
  1870 - 2299 1870 - 2299 4 102  
  2300 - 2729 2300 - 2729 3 103  
  2730 - 2945 2730 - 2945 4 104  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2497, 1492 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 109 Killed traces  
ALL     ALL 161, 304 Noisy Trace(s)  
1096-1116     1096-1116 2258-2281 Bird depth out of spec Bird C7-4
1100-1116     1100-1116 2282-2305 Bird depth out of spec Bird C7-5
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-20, 22, 369-383, 385, 737-746, 748, 1841-1855, 1857-1859, 1861-1862, 1865, 2209-2232, 2235, 2577-2601, 2603 Slope alarm > 5% of total line
1051-1065     1051-1065 2258-2281 Bird depth out of spec Bird C7-4
1122-1135     1122-1135 2674-2697 Bird depth out of spec Bird C8-6
1134-1152     1134-1152 2698-2721 Bird depth out of spec Bird C8-7
1137-1147     1137-1147 2674-2697 Bird depth out of spec Bird C8-6
1195     1195 ALL Gun timing error Gun 2-3 error (ms) : -1.1
1550     1550 ALL Gun timing error Gun 5-3 error (ms) : -1.1
1604     1604 ALL Gun timing error Gun 5-4 error (ms) : 1.1
1778     1778 ALL Gun timing error Gun 5-4 error (ms) : 1.1
1955     1955 ALL Gun timing error Gun 2-3 error (ms) : 1.1
2061     2061 ALL Gun timing error Gun 1-2 error (ms) : 1.6
2444     2444 ALL Gun timing error Gun 4-1 error (ms) : 1.6
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 00:30:57utc 03-Aug-2002