ACQUISITION REPORT Sequence-0407
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4416J407
  Preplot G01A4416
  Direction 18.0°
  SOL Date 21:41:36utc 04-May-2002
  EOL Date 03:33:00utc 05-May-2002
 Attributes:  
   Wind Force 15.0 [knots] Dir NW
   Swell Height 1.5 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 107.0 47.0 [meters]
   Bottomspeed  4.5 4.3 [knots]
   Featherangle port -2.9 port -4.6 [deg]
   Cable noise 5.1 390.0 [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)   1667 - 1668  
   SOL Dummy Record(s) 1669 - 1698 1669 - 1698 21:37:31 - 21:41:28
   FSP Start of Line 1699 1699 21:41:36
   MSP 2709 2709 23:59:55
   LSP End of Line 4310 4310 03:33:00
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4311 - 4312  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1699 - 4310 1699 - 4310 21:41:36-03:33:00 Infill 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1029mB. Side swipes present at record. Low frequency strumming Str 6 channels 1841 - 1875. Guns fired trough EOL noise record.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1667 - 2096 1667 - 2096 2 1730  
  2097 - 2526 2097 - 2526 1 1731  
  2527 - 2956 2527 - 2956 1 1732  
  2957 - 3386 2957 - 3386 2 1733  
  3387 - 3816 3387 - 3816 1 1734  
  3817 - 4246 3817 - 4246 2 1735  
  4247 - 4312 4247 - 4312 1 1736  
Stream 2
   Shot(s) Files Deck Reel Remark
  1667 - 2096 1667 - 2096 4 1730  
  2097 - 2526 2097 - 2526 3 1731  
  2527 - 2956 2527 - 2956 4 1732  
  2957 - 3386 2957 - 3386 3 1733  
  3387 - 3816 3387 - 3816 4 1734  
  3817 - 4246 3817 - 4246 3 1735  
  4247 - 4312 4247 - 4312 4 1736  

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, 1553, 1031 Spiking Trace(s)  
ALL     ALL 1857 Noisy Trace(s)  
1875     1875 ALL Gun timing error Gun 2-1 error (ms) : -2.1
2489-2499     2489-2499 2675-2691 Bird depth out of spec Bird C8-6, max depth 9.8m
2866-2871     2866-2871 51-67 Bird depth out of spec Bird C1-4, max depth 9.5m
3141-3148     3141-3148 419-435 Bird depth out of spec Bird C2-4, max depth 9.3m
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1316 Fails PS test Fails PS test
1726     1726 ALL Gun timing error Gun 5-2 error (ms) : -1.6
2480-2502     2480-2502 2651-2667 Bird depth out of spec Bird C8-5
2490-2508     2490-2508 2606-2648 Monowing wash Low frequency, high amplitude noise due to monowing wash
2500-2509     2500-2509 2675-2691 Bird depth out of spec Bird C8-6
2880-2894     2880-2894 443-459 Bird depth out of spec Bird C2-5
2934     2934 ALL Gun timing error Gun 5-2 error (ms) : -1.6
3139-3155     3139-3155 51-67 Bird depth out of spec Bird C1-4
3145-3155     3145-3155 443-459 Bird depth out of spec Bird C2-5
3268     3268 ALL Gun timing error Gun 5-2 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 04:25:00utc 05-May-2002