ACQUISITION REPORT Sequence-0134
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3552A134
  Preplot G01A3552
  Direction 198.0°
  SOL Date 20:15:32utc 20-Dec-2001
  EOL Date 22:50:49utc 20-Dec-2001
 Attributes:  
   Wind Force 15.0 [knots] Dir SW
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 47.0 54.0 [meters]
   Bottomspeed  4.8 3.5 [knots]
   Featherangle sb +6.7 sb +1.3 [deg]
   Cable noise 7.3 23.53 [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)   4129 - 4126  
   SOL Dummy Record(s) 4125 - 4098 4125 - 4098 20:12:00 - 20:15:24
   FSP Start of Line 4097 4097 20:15:32
   MSP      
   LSP End of Line 2845 2845 22:50:49
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2844 - 2844  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4097 - 2850 4097 - 2850 20:15:32-22:49:59 Prime 16 Valid Line stopped at SP2850 dt turns, avoiding platform.
    2849 - 2845 2849 - 2845 22:50:09-22:50:49 Prime 16 Scratched Scratched d/t Navigational processing
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1012mB. Str7 Bird 1 mask on External Header, occasionally deep. LGSP SP 2850 dt avoid the platform.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4129 - 3700 4129 - 3700 1 574  
  3699 - 3270 3699 - 3270 4 575  
  3269 - 2844 3269 - 2844 2 576  
Stream 2
   Shot(s) Files Deck Reel Remark
  4129 - 3700 4129 - 3700 3 574  
  3699 - 3270 3699 - 3270 4 575  
  3269 - 2844 3269 - 2844 3 576  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1657, 2307, 2731 Spiking Trace(s)  
ALL     ALL 2871 Noisy Trace(s)  
2899-2891       ALL Missing File Files not recorded by recording system
2890-2845     2890-2845 1-185   Front half of cables noisy dt turns.
2890-2845     2890-2845 369-553   Front half of cables noisy dt turns.
2890-2845     2890-2845 737-921   Front half of cables noisy dt turns.
2890-2845     2890-2845 1105-1289   Front half of cables noisy dt turns.
2890-2845     2890-2845 1473-1657   Front half of cables noisy dt turns.
2890-2845     2890-2845 1841-2025   Front half of cables noisy dt turns.
2890-2845     2890-2845 2209-2393   Front half of cables noisy dt turns.
2890-2845     2890-2845 2577-2761   Front half of cables noisy dt turns.
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1459, 1465, 2034 Cross feed Failed Cross feed test
ALL     ALL 2209-2213 Bird Depth out of spec Bird C7-1 occasional deep 8.1-8.4m
ALL     ALL 1-13, 16, 369-380, 737-752, 755, 758, 763-764, 1105-1113, 1122-1126, 1128-1135, 1484, 1841-1853, 1855-1856, 2209-2220, 2223-2225, 2577, 2585-2588 Slope alarm > 5% of total line
Comment
Shot(s)     File(s) Trace(s) Type Remark
2942     2942 ALL   Start deviating to port to avoid platform
2850     2850 ALL   Last Good Shot Point (LGSP) d/t lack of navigation


 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 07:22:18utc 23-Dec-2001