ACQUISITION REPORT Sequence-0324
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4960A324
  Preplot G01A4960
  Direction 198.0°
  SOL Date 18:25:30utc 19-Mar-2002
  EOL Date 20:12:20utc 19-Mar-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir W
   Swell Height 1.2 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 81.0 80.0 [meters]
   Bottomspeed  4.6 4.8 [knots]
   Featherangle sb +4.7 port -2.7 [deg]
   Cable noise 6.4 12.4 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Port Volume 3542 3512  
   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 -6.0 3542.0 3 24
2 PORT -345.0 -25.0 -6.0 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 -7.0 4600 Nessie-3 12.5 368 0001-0368
2 STBD -520.0 250.0 -7.0 4600 Nessie-3 12.5 368 0369-0736
3 STBD -520.0 150.0 -7.0 4600 Nessie-3 12.5 368 0737-1104
4 STBD -520.0 50.0 -7.0 4600 Nessie-3 12.5 368 1105-1472
5 PORT -520.0 -50.0 -7.0 4600 Nessie-3 12.5 368 1473-1840
6 PORT -520.0 -150.0 -7.0 4600 Nessie-3 12.5 368 1841-2208
7 PORT -520.0 -250.0 -7.0 4600 Nessie-3 12.5 368 2209-2576
8 PORT -520.0 -350.0 -7.0 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)   4225 - 4224  
   SOL Dummy Record(s) 4223 - 4214 4223 - 4214 18:24:10 - 18:25:22
   FSP Start of Line 4213 4213 18:25:30
   MSP      
   LSP End of Line 3418 3418 20:12:20
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1318 - 1317  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4213 - 4008 4213 - 4008 18:25:30-18:52:01 Prime 0 Scratched Data scratched d/t gun 6-8 autofire
    4007 - 3670 4007 - 3670 18:52:08-19:36:45 Prime 16 Scratched All data scratch
    3669 - 3418 3669 - 3418 19:36:53-20:12:20 Prime 0 Scratched Data scratched d/t weather
 Remarks:      
   Navigation Streamer depth at 7.0m. All data scratch    
   Recording QC ** ALL DATA SCRATCH** Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1018mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4225 - 3796 4225 - 3796 1 1331  
  3795 - 1318 3795 - 1318 2 1332  
Stream 2
   Shot(s) Files Deck Reel Remark
  4225 - 3796 4225 - 3796 3 1331  
  3795 - 1318 3795 - 1318 4 1332  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 820 Killed traces  
ALL     ALL 2599 Killed traces  
ALL     ALL 2772, 821, 2307 Noisy Trace(s)  
ALL     ALL 1657, 2389, 2600, 2641 Spiking Trace(s)  
ALL     ALL 1633 Weak Trace(s) Trace signal less than -6dB of nominal value
3972     3972 ALL Gun Timing Error Gun 5-2 error ( ms) : -2.0
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1476, 2782 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL NONE Bad Birds Birds 5-18, 4-2, 2-18 no comms
4140     4140 ALL Gun Timing Error Gun timing error, Gun 5-2 = -1.6 ms
Comment
Shot(s)     File(s) Trace(s) Type Remark
4006     4006 ALL Gun disabled Gun 6-8 . New source volume 3512 cu.inch.
3600     3600 ALL Swell Noise Swell noise increasing from 10-20%


 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 21:45:51utc 25-Mar-2002