ACQUISITION REPORT Sequence-003
 Survey:  
  Client Bass Strait Oil Company
  Area Vic/P42, GIPPSLAND BASIN
  Vessel GECO BETA
  JobNumber 9226
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename VP421232P003
  Preplot  VP4212
  Direction 13.0°
  SOL Date 14:47:55utc 28-Jul-2002
  EOL Date 18:50:15utc 28-Jul-2002

 Attributes:  
   Wind Force 10.0 [knots] Dir SW
   Swell Height 1.5 [meters] Dir W
   Propellor rpm 125 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 65.0 57 [meters]
   Bottomspeed  4.8 4.6 [knots]
   Featherangle port -1.7 sb 5.3 [deg]
   Cable noise 7.0 4.7 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Port Volume 3542 3542  
   Stbd Volume 3542 3542  
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) 2810-2809  
  SOL Dummy Record(s) 2837-2808 2837-2808  
  FSP Start of Line 2807 2807 14:47:55
  MSP      
  LSP End of Line 949 949 18:50:15
  EOL Dummy Record(s)      
  EOL Noise Record(s) 947-948  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
   2807 - 949 2807 - 949 14:47:55 - 18:50:15 Prime 16 Valid  
 Remarks:      
  Navigation Streamer depth at 8.0m    
  Recording QC Filter delay 5.6ms. Frontsheet Set 1. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1023mB. Str 6 Bird 12 reading bad depth.    
Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
2839-2410 2839-2410 1 12  
2409-1980 2409-1980 2 13  
1979-1550 1979-1550 2 14  
1549-1120 1549-1120 1 15  
1119-948 1119-948 2 16
Stream 2
   Shot(s) Files Deck Reel Remark
2839-2410 2839-2410 4 12  
2409-1980 2409-1980 3 13  
1979-1550 1979-1550 4 14  
1549-1120 1549-1120 3 15
1119-948 1119-948 4 16  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL ALL 161, 304 Noisy Traces
ALL ALL 109 Spiky Traces
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL ALL 2627-2643 Bird depth out of spec Bird C8-4 Constatntly deep, 9.0-9.5m
ALL ALL 2083-2099 Bird depth out of spec Bird C6-12 Bad depth reading
2374 2374 ALL Gun timing error Gun 5-3 error (ms): 1.1
1018 1018 ALL Gun timing error Gun 5-3 error (ms): 1.1
2600-2439 2600-2439 123-139 Bird depth out of spec Bird C1-7 
2100-2068 2100-2068 123-139 Bird depth out of spec Bird C1-7
Comment
Shot(s)     File(s) Trace(s) Type Remark

 
 List of used abbreviations
   SOL/EOL Start/End of line    Deg Degrees: e[0,360]
   FSP/LSP First/Last shotpoint of the line    rev Revolutions
   FCSP/LCSP First/Last chargeable shotpoint    utc Universal Time Coordinated
   MSP Midnight (last) shotpoint of the day    SPs Shotpoints
   FGSP/LGSP First/Last Good Shotpoint    CMP's Common midpoints
   FOSP/LOSP First/Last Overlap Shotpoint    NTBP Not to be processed
   FSP/LSP R/O First/Last Shotpoint Runout    SI Seismic Interference

TRILOGY INFORMATION MANAGER - ACQUISITION REPORT - GENERATED 19:50:23utc 28-Jul-2002