ACQUISITION REPORT Sequence-0392
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4432J392
  Preplot G01A4432
  Direction 18.0°
  SOL Date 06:26:17utc 01-May-2002
  EOL Date 12:46:14utc 01-May-2002
 Attributes:  
   Wind Force 1.0 [knots] $(wind_dir)
   Swell Height 0.5 [meters] Dir SW
   Propellor rpm 125 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 114.0 49.5 [meters]
   Bottomspeed  4.0 4.2 [knots]
   Featherangle port -0.7 sb +3.3 [deg]
   Cable noise 5.6 0.0 [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)   1673 - 1674  
   SOL Dummy Record(s) 1675 - 1704 1675 - 1704 06:21:46 - 06:26:08
   FSP Start of Line 1705 1705 06:26:17
   MSP      
   LSP End of Line 4311 4311 12:46:14
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4312 - 4313  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1705 - 4311 1705 - 4311 06:26:17-12:46:14 Infill 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1032mB. Low frequency strumming Str 6 1841 - 1875, Occassional burst of swell noise present on records, approx 2-3 µB, affecting 5 % of traces    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1673 - 2102 1673 - 2102 2 1676  
  2103 - 2532 2103 - 2532 1 1677  
  2533 - 2962 2533 - 2962 2 1678  
  2963 - 3392 2963 - 3392 1 1679  
  3393 - 3822 3393 - 3822 2 1680  
  3823 - 4252 3823 - 4252 1 1681  
  4253 - 4313 4253 - 4313 2 1682  
Stream 2
   Shot(s) Files Deck Reel Remark
  1673 - 2102 1673 - 2102 4 1676  
  2103 - 2532 2103 - 2532 3 1677  
  2533 - 2962 2533 - 2962 4 1678  
  2963 - 3392 2963 - 3392 3 1679  
  3393 - 3822 3393 - 3822 4 1680  
  3823 - 4252 3823 - 4252 3 1681  
  4253 - 4313 4253 - 4313 4 1682  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1476, 1633, 2782 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 1553, 1797, 2265, 2531-2532, 2764 Spiking Trace(s)  
ALL     ALL 1857, 2827, 2871 Noisy Trace(s)  
ALL     ALL- 744 Killed traces  
1806-1812     1806-1812 2259-2275 Bird depth out of spec Bird C7-4, Max depth 9.6m
2820-2830     2820-2830 51-67 Bird depth out of spec Bird C1-4 Max depth 10.0m
2822-2861     2822-2861 1-100 Monowing wash Low frequency, high amplitude noise due to monowing wash
2824-2841     2824-2841 27-43 Bird depth out of spec Bird C1-3, Max depth 10.1m
2851-2860     2851-2860 27-43 Bird depth out of spec Bird C1-3, Max depth 10.5m
3078-3089     3078-3089 419-435 Bird depth out of spec Bird C2-4 max depth 10.2m
3085-3096     3085-3096 51-67 Bird depth out of spec Bird C1-4 max depth 9.7m
3090-3096     3090-3096 443-453 Bird depth out of spec Bird C2-5 Max depth 9.3m
3099-3105     3099-3105 75-91 Bird depth out of spec Bird C1-5 Max depth 9.2m
3649-3655     3649-3655 99-115 Bird depth out of spec Bird C1-6 min depth 4.2m
3808     3808 ALL Gun timing error Gun 5-2 error (ms) : -2.2
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-14, 16-17, 20, 22, 369-385, 390, 405, 1105-1113, 1123, 1125-1126, 1130, 1135, 1841-1853, 1855-1856, 2209-2220, 2222-2225, 2577, 2584-2588, 2591, 2602 Slope alarm > 5% of total line
1802-1813     1802-1813 2603-2619 Bird depth out of spec Bird C8-3
2015-2025     2015-2025 75-91 Bird depth out of spec Bird C1-5
2843-2852     2843-2852 51-67 Bird depth out of spec Bird C1-4
3103-3120     3103-3120 99-115 Bird depth out of spec Bird C1-6
3121-3842     3121-3842 2771-2787 Bird depth out of spec Bird C8-10 - Incorrect depth reading
3123-3132     3123-3132 443-459 Bird depth out of spec Bird C2-5
3647-3667     3647-3667 467-483 Bird depth out of spec Bird C2-6
3669-3685     3669-3685 99-115 Bird depth out of spec Bird C1-6
3703-3715     3703-3715 2259-2275 Bird depth out of spec Bird C7-4
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 03:08:55utc 05-May-2002