ACQUISITION REPORT Sequence-0421
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4272J421
  Preplot G01A4272
  Direction 18.0°
  SOL Date 15:33:09utc 08-May-2002
  EOL Date 20:22:57utc 08-May-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir N
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 80.0 48.0 [meters]
   Bottomspeed  4.6 4.2 [knots]
   Featherangle sb +13.6 port -1.4 [deg]
   Cable noise 8.6 5.1 [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 -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)   2168 - 2169  
   SOL Dummy Record(s) 2170 - 2199 2170 - 2199 15:29:10 - 15:33:01
   FSP Start of Line 2200 2200 15:33:09
   MSP      
   LSP End of Line 4304 4304 20:22:57
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4305 - 4306  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2200 - 2299 2200 - 2299 15:33:09-15:46:09 Infill 0 Scratched NTBP DT coverage
    2300 - 4304 2300 - 4304 15:46:16-20:22:57 Infill 16 Valid FGSP 2300
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1028mB. Low frequency strumming Str 6 channels 1841 - 1875. Low frequency noise d/t current present at record . Turn noise at SOL noise records. Side swipes present at record.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2168 - 2597 2168 - 2597 1 1775  
  2598 - 3027 2598 - 3027 2 1776  
  3028 - 3457 3028 - 3457 2 1777  
  3458 - 3887 3458 - 3887 1 1778  
  3888 - 4306 3888 - 4306 2 1779  
Stream 2
   Shot(s) Files Deck Reel Remark
  2168 - 2597 2168 - 2597 4 1775  
  2598 - 3027 2598 - 3027 3 1776  
  3028 - 3457 3028 - 3457 4 1777  
  3458 - 3887 3458 - 3887 3 1778  
  3888 - 4306 3888 - 4306 4 1779  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1633 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 337, 349, 1553, 791 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL- 744, 2764 Killed traces  
3302-3315     3302-3315 51-67 Bird depth out of spec Bird C1-4, max depth, 9.5m
3308-3317     3308-3317 395-411 Bird depth out of spec Bird C2-3, max depth 10.2m
3308-3321     3308-3321 419-435 Bird depth out of spec Bird C2-4, max depth 10.3m
3491-3502     3491-3502 2259-2275 Bird depth out of spec Bird C7-4, max depth 9.8m
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS test Fails PS test
ALL     ALL 1-17, 20, 22-24, 369-385, 387-393, 405, 1105-1117, 1119-1126, 1128-1135, 1137-1138, 1147, 1473-1485, 1487, 1489, 1841-1857, 1860-1864, 1866-1867, 1873, 2209-2226, 2229-2232, 2239, 2577-2596, 2601-2605 Slope alarm > 5% of total line
2669-2695     2669-2695 1841-1886 Streamer noise Low frequency noise dt currents approx 20-40uB
2672-2764     2672-2764 369-485 Streamer noise Low frequency noise dt currents approx 20-40uB
2672-2767     2672-2767 1-97 Streamer noise Low frequency noise dt currents approx 20-40uB
2673-2729     2673-2729 737-818 Streamer noise Low frequency noise dt currents approx 20-40uB
2674-2724     2674-2724 1105-1163 Streamer noise Low frequency noise dt currents approx 20-40uB
2677-2726     2677-2726 1473-1521 Streamer noise Low frequency noise dt currents approx 20-40uB
2733-2744     2733-2744 1-5 Bird depth out of spec Bird C1-1
2760-2780     2760-2780 1-5 Bird depth out of spec Bird C1-1
2830-2852     2830-2852 1-5 Bird depth out of spec Bird C1-1
3074-3087     3074-3087 2259-2275 Bird depth out of spec Bird C7-4
3390-3404     3390-3404 1-5 Bird depth out of spec Bird C1-1
3493-3509     3493-3509 2283-2291 Bird depth out of spec Bird C7-5
3749-3762     3749-3762 2283-2299 Bird depth out of spec Bird C7-5
Comment
Shot(s)     File(s) Trace(s) Type Remark
2300     2300 ALL FGSP FGSP dt coverage
3190-3605     3190-3605 ALL Ship Noise From abeam. Level <5 uBar.


 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 20:56:34utc 08-May-2002