ACQUISITION REPORT Sequence-0162
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2192A162
  Preplot G01A2192
  Direction 18.0°
  SOL Date 02:49:23utc 30-Dec-2001
  EOL Date 07:06:37utc 30-Dec-2001
 Attributes:  
   Wind Force 7.0 [knots] Dir SW
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 48.5 38.7 [meters]
   Bottomspeed  4.7 4.65 [knots]
   Featherangle sb +1.3 sb +1.8 [deg]
   Cable noise 7.65 5.47 [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)   1430 - 1431  
   SOL Dummy Record(s) 1432 - 1461 1432 - 1461 02:45:34 - 02:49:16
   FSP Start of Line 1462 1462 02:49:23
   MSP      
   LSP End of Line 3521 3521 07:06:37
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3522 - 3523  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1462 - 3521 1462 - 3521 02:49:23-07:06:37 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1009. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. Bird 8-18 masked from external header d/t bad depth reading. Bend noise present on noise records. Burst of swell noise present on all records.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1430 - 1859 1430 - 1859 1 667  
  1860 - 2289 1860 - 2289 2 668  
  2290 - 2719 2290 - 2719 1 669  
  2720 - 3149 2720 - 3149 2 670  
  3150 - 3523 3150 - 3523 1 671  
Stream 2
   Shot(s) Files Deck Reel Remark
  1430 - 1859 1430 - 1859 3 667  
  1860 - 2289 1860 - 2289 4 668  
  2290 - 2719 2290 - 2719 3 669  
  2720 - 3149 2720 - 3149 4 670  
  3150 - 3523 3150 - 3523 3 671  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 1853 Killed traces  
ALL     ALL 1657, 2307, 2731 Spiking Trace(s)  
ALL     ALL 2871 Noisy Trace(s)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2301   Fail crossfeed test.
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1 occasionally deep, 7.8m - 8.5m
ALL     ALL 1-5, 9, 369-371, 737-741, 744, 1105-1106, 1108-1113, 2209-2219, 2577, 2585-2586, 2588 Slope alarm > 5% of total line
1842     1842 ALL Gun timing error Gun 5-2 error (ms) : -1.6
2569-2581     2569-2581 2331-2347 Bird depth out of spec Bird C7-7
2772     2772 75-91 Bird depth out of spec Bird C1-5
2774-2782     2774-2782 75-91 Bird depth out of spec Bird C1-5
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Swell Noise Swell bursts affecting 5% of traces, ambient noise 5 uB


 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 07:29:13utc 30-Dec-2001