ACQUISITION REPORT Sequence-0851
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170C
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A0002PXT851
  Preplot G01A0002XT
  Direction 224.0°
  SOL Date 04:18:17utc 25-May-2002
  EOL Date 05:36:05utc 25-May-2002
 Attributes:  
   Wind Force 5.0 [knots] Dir SE
   Swell Height 1.5 [meters] Dir SW
   Propellor rpm 123 [avg]  
   Propellor pitch 90 [avg]  
       
  SOL EOL  
   Waterdepth 55.0 57.0 [meters]
   Bottomspeed  4.7 4.6 [knots]
   Featherangle port -4.6 port -11.3 [deg]
   Cable noise 4.0 5.6 [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 8
2 PORT -345.0 -25.0 -6.0 3542.0 3 8

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)      
   SOL Dummy Record(s)      
   FSP Start of Line 1445   04:18:17
   MSP      
   LSP End of Line 831   05:36:05
   EOL Dummy Record(s)      
   EOL Noise Record(s)      
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1445 - 831 1445 - 831 04:18:17-05:36:05 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 7.0 mtr    
   Recording QC STRONG REFLECTED NOISE FROM PLATFORMS DURING RIG PASSES. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1032mB. Low frequency strumming Str 6 channels 1841 - 1875.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1457 - 1028 1457 - 1028 1 10051  
  1027 - 879 1027 - 879 2 10052  
Stream 2
   Shot(s) Files Deck Reel Remark
  1457 - 1028 1457 - 1028 3 10051  
  1027 - 879 1027 - 879 4 10052  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 353 Killed traces  
ALL     ALL- 377 Killed traces  
ALL     ALL- 744 Killed traces  
ALL     ALL- 2764 Killed traces  
ALL     ALL 1857, 2943 Noisy Trace(s)  
ALL     ALL 349 Spiking Trace(s)  
945-937       2675-2691 Bird depth out of spec Bird C8-6 max depth 9.2mtr
Warning
Shot(s)     File(s) Trace(s) Type Remark
1354-1336       NONE Bird depth out of spec Bird C8-17max depth 8.5mtr
1209-1178       NONE Bird depth out of spec Bird C1-1 max depth 8.4mtr
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL NONE Bird No Comms Bird C4-2, C8-18


 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 05:58:42utc 25-May-2002