ACQUISITION REPORT Sequence-0409
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4128B409
  Preplot G01A4128
  Direction 198.0°
  SOL Date 10:14:57utc 05-May-2002
  EOL Date 12:05:35utc 05-May-2002
 Attributes:  
   Wind Force 7.0 [knots] Dir W
   Swell Height 0.5 [meters] Dir SSE
   Propellor rpm 122 [avg]  
   Propellor pitch 87 [avg]  
       
  SOL EOL  
   Waterdepth 62.0 72.0 [meters]
   Bottomspeed  4.9 4.9 [knots]
   Featherangle sb +8.6 port -4.0 [deg]
   Cable noise 6.7 16.3 [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)   2632631  
   SOL Dummy Record(s) 2630-2601 2630-2601  
   FSP Start of Line 2600 2600 10:14:57
   MSP      
   LSP End of Line 1715 1715 12:05:35
   EOL Dummy Record(s)      
   EOL Noise Record(s)      
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2600 - 1715 2600 - 1715 10:14:57-12:05:35 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1025mB. Side swipes present at record. Low frequency strumming Str 6 channels 1841 - 1875. 1795 turn to avoid rig.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2632 - 2203 2632 - 2203 1 1740  
  2202 - 1773 2202 - 1773 1 1741  
  1772 - 1448 1772 - 1448 2 1742  
Stream 2
   Shot(s) Files Deck Reel Remark
  2632 - 2203 2632 - 2203 4 1740  
  2202 - 1773 2202 - 1773 3 1741  
  1772 - 1448 1772 - 1448 4 1742  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 744, 2764 Killed traces  
ALL     ALL 1633, 2782 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 337, 1031, 1553 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
1740-1715     1740-1715 1-84 Streamer noise Bend noise dt rig
1740-1715     1740-1715 369-433 Streamer noise Bend noise dt rig
1740-1715     1740-1715 737-801 Streamer noise Bend noise dt rig
1740-1715     1740-1715 1105-1169 Streamer noise Bend noise dt rig
1740-1715     1740-1715 1473-1537 Streamer noise Bend noise dt rig
1740-1715     1740-1715 1841-1905 Streamer noise Bend noise dt rig
1740-1715     1740-1715 2209-2273 Streamer noise Bend noise dt rig
1740-1715     1740-1715 2577-2641 Streamer noise Bend noise dt rig
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 Fails PS test  
ALL     ALL 1-13, 16, 369-383, 1105-1106, 1109-1110, 1112-1113, 1115, 1121-1126, 1128-1135, 1138, 1147, 1484, 1489, 1841-1850, 1852-1853, 1855-1856, 2209-2220, 2222-2226, 2229, 2577-2579, 2581-2589, 2591 Slope alarm > 5% of total line
2205-2195     2205-2195 2675-2691 Bird depth out of spec Bird C8-6
1847-1715     1847-1715 2254-2290 Streamer noise Object traveling down streamer
1839-1827     1839-1827 51-67 Bird depth out of spec Bird C1-4
1751-1738     1751-1738 395-411 Bird depth out of spec Bird C2-3
1747-1736     1747-1736 419-435 Bird depth out of spec Bird C2-4
1726-1715     1726-1715 2931-2944 Bird depth out of spec Bird C8-17
1724-1715     1724-1715 2563-2576 Bird depth out of spec Bird C7-17
Comment
Shot(s)     File(s) Trace(s) Type Remark
1795     1795 ALL Line Information Port turn to avoid rig


 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 02:29:45utc 06-May-2002