ACQUISITION REPORT Sequence-0382
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4432A382
  Preplot G01A4432
  Direction 18.0°
  SOL Date 15:50:57utc 25-Apr-2002
  EOL Date 20:01:25utc 25-Apr-2002
 Attributes:  
   Wind Force 16.0 [knots] Dir SW
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 112.0 57.0 [meters]
   Bottomspeed  4.7 4.8 [knots]
   Featherangle sb +7.9 sb +9.2 [deg]
   Cable noise 5.9 15.4 [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
0 STBD -345.0 25.0 -6.0 0.0 0 0
0 STBD -345.0 -25.0 -6.0 0.0 0 0

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 15:47:07 - 15:50:49
   FSP Start of Line 1705 1705 15:50:57
   MSP      
   LSP End of Line 3700 3700 20:01:25
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4312 - 4313  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1705 - 2900 1705 - 2900 15:50:57-18:20:58 Prime 16 Valid  
    2901 - 3700 2901 - 3700 18:21:05-20:01:25 Prime 16 Scratched NTBP d/t excessive swell noise
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1018mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP. Last Good Shot Point ( LGSP ) : 2900    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1673 - 2102 1673 - 2102 2 1623  
  2103 - 2532 2103 - 2532 1 1624  
  2533 - 2962 2533 - 2962 2 1625  
  2963 - 3392 2963 - 3392 1 1626  
  3393 - 4313 3393 - 4313 2 1627  
Stream 2
   Shot(s) Files Deck Reel Remark
  1673 - 2102 1673 - 2102 4 1623  
  2103 - 2532 2103 - 2532 3 1624  
  2533 - 2962 2533 - 2962 4 1625  
  2963 - 3392 2963 - 3392 3 1626  
  3393 - 4313 3393 - 4313 4 1627  

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, 2265 Spiking Trace(s)  
ALL     ALL 1857, 2827, 2871 Noisy Trace(s)  
ALL     ALL- 744 Killed traces  
1937     1937 ALL Gun Timing Error Gun 1-6 error ( ms ) :12.4
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-13, 16, 369-374, 377-380, 1112-1113, 1126, 1130, 1841-1850, 1852, 1855, 2209-2220, 2222-2225, 2577, 2585-2588, 2602 Slope alarm > 5% of total line
2153-2165     2153-2165 99-115 Bird depth out of spec Bird C1-6
2721-2732     2721-2732 2665-2691 Bird depth out of spec Bird C8-6
2791     2791 ALL Gun timing error Gun 1-2 error (ms) : -1.7
2795-2805     2795-2805 51-67 Bird depth out of spec Bird C1-4
Comment
Shot(s)     File(s) Trace(s) Type Remark
2900     2900 ALL   LGSP : Last Good Shot Point


 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 20:52:19utc 25-Apr-2002