ACQUISITION REPORT Sequence-0022
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42 Gippsland Basin
  Vessel GECO_BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421328P022
  Preplot VP421328
  Direction 13.0°
  SOL Date 04:01:47utc 02-Aug-2002
  EOL Date 05:41:50utc 02-Aug-2002
 Attributes:  
   Wind Force 1.0 [knots] Dir SE
   Swell Height 1.0 [meters] Dir SE
   Propellor rpm 137 [avg]  
   Propellor pitch 92 [avg]  
       
  SOL EOL  
   Waterdepth 65.0 65.0 [meters]
   Bottomspeed  4.57 4.0 [knots]
   Featherangle sb +4.9 0.0 [deg]
   Cable noise 21.56 0.0 [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)      
   SOL Dummy Record(s) 2824 - 2795 2824 - 2795 03:57:48 - 04:01:39
   FSP Start of Line 2794 2794 04:01:47
   MSP      
   LSP End of Line 2036   05:41:50
   EOL Dummy Record(s)      
   EOL Noise Record(s)      
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2794 - 2036 2794 -   04:01:47-  Prime 16 Valid EOL d/t problem with Nav database.
 Remarks:      
   Navigation Streamer depth 8.0mtr.    
   Recording QC Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1032mB, pressure now 1012mB. Excessive Noise on SOL Noise record dt bend in cable from short run in.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2826 - 2397 2826 - 2397 2 96  
  2396 - 2034 2396 - 2034 1 97  
Stream 2
   Shot(s) Files Deck Reel Remark
  2826 - 2397 2826 - 2397 4 96  
  2396 - 2034 2396 - 2034 3 97  

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
2744-2736     2744-2736 2241-2291 Monowing wash Low frequency, high amplitude noise due to monowing wash
2711-2705     2711-2705 2229-2286 Monowing wash Low frequency, high amplitude noise due to monowing wash
2697-2656     2697-2656 2650-2673 Bird depth out of spec Bird C8-5 max depth 11.7m
2693-2647     2693-2647 2674-2697 Bird depth out of spec Bird C8-6 max depth 11.7m
2683-2672     2683-2672 2698-2721 Bird depth out of spec Bird C8-7 max depth 10.6m
2591-2568     2591-2568 2258-2287 Bird depth out of spec Bird C7-4 max depth 10.8m
2590-2549     2590-2549 2236-2296 Monowing wash Low frequency, high amplitude noise due to monowing wash
2588-2517     2588-2517 2282-2305 Bird depth out of spec Bird C7-5 max depth 13.6m
2581-2510     2581-2510 2306-2329 Bird depth out of spec Bird C7-6 max depth 12.8m
2550-2539     2550-2539 2258-2281 Bird depth out of spec Bird C7-4 max depth 12.3m
2163     2163 ALL External header lost  
Warning
Shot(s)     File(s) Trace(s) Type Remark
2794-2773     2794-2773 2306-2329 Bird depth out of spec Bird C7-6
2792-2781     2792-2781 2282-2305 Bird depth out of spec Bird C7-5
2755-2745     2755-2745 2674-2697 Bird depth out of spec Bird C8-6
2751-2743     2751-2743 2306-2329 Bird depth out of spec Bird C7-6
2746-2727     2746-2727 2282-2305 Bird depth out of spec Bird C7-5
2669-2646     2669-2646 2698-2721 Bird depth out of spec Bird C8-7
2559-2537     2559-2537 2330-2353 Bird depth out of spec Bird C7-7
2530-2510     2530-2510 2330-2353 Bird depth out of spec Bird C7-7
2057-2045       2378-2401 Bird depth out of spec Bird C7-9
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 18:31:02utc 02-Aug-2002