ACQUISITION REPORT Sequence-0440
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4272B440
  Preplot G01A4272
  Direction 198.0°
  SOL Date 14:53:32utc 13-May-2002
  EOL Date 16:08:40utc 13-May-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir S
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 64.0 78.0 [meters]
   Bottomspeed  4.2 4.5 [knots]
   Featherangle port -6.8 sb +0.6 [deg]
   Cable noise 5.7 5.2 [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)   2882 - 2881  
   SOL Dummy Record(s) 2880 - 2851 2880 - 2851 14:49:14 - 14:53:24
   FSP Start of Line 2850 2850 14:53:32
   MSP      
   LSP End of Line 2300 2300 16:08:40
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2299 - 2298  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2850 - 2601 2850 - 2601 14:53:32-15:28:01 Infill 16 Valid  
    2600 - 2300 2600 - 2300 15:28:10-16:08:40 Reshoot 16 Valid  
 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. Side swipes present on record.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2882 - 2453 2882 - 2453 2 1822  
  2452 - 2299 2452 - 2299 1 1823  
Stream 2
   Shot(s) Files Deck Reel Remark
  2882 - 2453 2882 - 2453 4 1822  
  2452 - 2299 2452 - 2299 3 1823  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1633, 2782 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 337, 349, 791, 1553 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL- 744, 2764 Killed traces  
2727-2724     2727-2724 407-412 Monowing wash Low frequency, high amplitude noise due to monowing wash
2723-2719     2723-2719 27-43 Bird depth out of spec Bird C1-3, max depth 9.6m
2722-2719     2722-2719 28-44 Monowing wash Low frequency, high amplitude noise due to monowing wash
2721-2711     2721-2711 51-67 Bird depth out of spec Bird C1-4, max depth 9.7m
2713-2711     2713-2711 28-39 Monowing wash Low frequency, high amplitude noise due to monowing wash
2425-2406     2425-2406 75-91 Bird depth out of spec Bird C1-5, max depth 10m
2424-2406     2424-2406 51-67 Bird depth out of spec Bird C1-4, max depth 10m
2421-2411     2421-2411 99-115 Bird depth out of spec Bird C1-6, max depth 9.5m
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 PS Test Fails PS test
ALL     ALL 1-20, 22-24, 369-385, 387-390, 392-393, 405, 1105-1106, 1108-1113, 1115-1116, 1121-1123, 1125-1126, 1128-1135, 1147, 1473, 1478-1489, 1493-1496, 1508, 1841-1857, 1860, 1862-1864, 1866-1867, 1873, 2209-2226, 2229-2232, 2577-2589, 2591-2594, 2602 Slope alarm > 5% of total line
Comment
Shot(s)     File(s) Trace(s) Type Remark
2850     2850 ALL Line information First infill SP
2600     2600 ALL Line information First reshoot SP
2310     2310 ALL Line information Firts overlap SP


 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 22:54:53utc 13-May-2002