ACQUISITION REPORT Sequence-0816
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170C
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G10A2208PSN816
  Preplot G01A2208SN
  Direction 108.0°
  SOL Date 23:01:35utc 26-Feb-2002
  EOL Date 23:30:39utc 26-Feb-2002
 Attributes:  
   Wind Force 25.0 [knots] Dir SW
   Swell Height 1.5 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 50.0 51.9 [meters]
   Bottomspeed  4.2 4.1 [knots]
   Featherangle port -5.6 port -4.1 [deg]
   Cable noise 5.8 8.7 [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)   3944 - 3943  
   SOL Dummy Record(s) 3942 - 3913 3942 - 3913 22:57:22 - 23:01:27
   FSP Start of Line 3912 3912 23:01:35
   MSP      
   LSP End of Line 3711 3711 23:30:39
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3710 - 3709  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3912 - 3711 3912 - 3711 23:01:35-23:30:39 Prime 16 Valid  
 Remarks:      
   Navigation      
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1020mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  3944 - 3710 3944 - 3710 1 10016  
Stream 2
   Shot(s) Files Deck Reel Remark
  3944 - 3710 3944 - 3710 3 10016  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1476, 1633 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 109, 1657, 2307, 2772 Spiking Trace(s)  
ALL     ALL 1495 Noisy Trace(s)  
3886     3886 ALL Gun timing error Gun 4-2 error (ms) : 2.1
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2034 Crossfeed Occasionally fails crossfeed
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1 occasionally deep 8.1 - 8.2
ALL     ALL 2577-2581 Bird depth out of spec Bird C8-1 occasionally deep 8.1 - 8.2
ALL     ALL 1, 3-7, 9, 369-374, 376-377, 737-742, 744, 1105-1110, 1112-1113, 1841-1850, 2209-2214, 2216-2220, 2223, 2577 Slope alarm > 5% of total line
3888     3888 ALL Gun timing error Gun 4-2 error (ms) : 1.9
3832     3832 ALL Gun timing error Gun 4-2 error (ms) : -1.8
3830     3830 ALL Gun timing error Gun 4-2 error (ms) : -1.6
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 23:38:09utc 26-Feb-2002