ACQUISITION REPORT Sequence-0105
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3136B105
  Preplot G01A3136
  Direction 18.0°
  SOL Date 00:57:40utc 06-Dec-2001
  EOL Date 02:28:02utc 06-Dec-2001
 Attributes:  
   Wind Force 12.0 [knots] Dir NE
   Swell Height 1.2 [meters] Dir E
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 49.3 43 [meters]
   Bottomspeed  4.0 4.3 [knots]
   Featherangle port -4.4 port -4.3 [deg]
   Cable noise 6.43 6.43 [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)      
   SOL Dummy Record(s)      
   FSP Start of Line 3500   00:57:40
   MSP      
   LSP End of Line 4111 4111 02:28:02
   EOL Dummy Record(s) 4112 - 4113 4112 - 4113 02:28:10 - 02:28:19
   EOL Noise Record(s)      
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3500 - 3659  3500 - 3659  00:57:40-01:21:42 Reshoot 0 Scratched Line scratched dt coverage
    3660 - 4111 3660 - 4111 01:21:51-02:28:02 Reshoot 16 Valid FGSP SP 3660
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017 mB, pressure now 1009 mB. Str 8 Bird 1 and Str 1 Bird 17 mask on External Header. SOL noise record not available d/t short run-in. FGSP SP 3660 dt coverage. SPU position 1 on array 1 dead    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  3500 - 3929 3500 - 3929 1 428  
  3930 - 4113 3930 - 4113 2 429  
Stream 2
   Shot(s) Files Deck Reel Remark
  3500 - 3929 3500 - 3929 3 428  
  3930 - 4113 3930 - 4113 4 429  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1948 Killed traces  
ALL     ALL 1191 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 1657 Spiking Trace(s)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2577-2581 Bird depth out of spec Bird C8-1 deep all line, max 8.2
ALL     ALL 1-12, 16, 369-380, 737-752, 755, 758, 763-764, 1105-1113, 1126, 1130-1131, 1473, 1841-1843, 1845-1846, 1849-1850, 1852, 1855-1856, 1864, 2209-2219, 2223, 2225, 2577, 2585 Slope alarm > 5% of total line
3661-3662     3661-3662 2699-2715 Bird depth out of spec Bird C8-7
3664-3665     3664-3665 2699-2715 Bird depth out of spec Bird C8-7
3680-3681     3680-3681 2651-2667 Bird depth out of spec Bird C8-5
4018     4018 2627-2643 Bird depth out of spec Bird C8-4
4020-4021     4020-4021 2259-2275 Bird depth out of spec Bird C7-4
4043-41114     4043- ALL Swell Noise Swell noise affecting 5% of traces, 50 uB - 100 uB
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 03:47:45utc 06-Dec-2001