ACQUISITION REPORT Sequence-0078
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2864A078
  Preplot G01A2864
  Direction 18.0°
  SOL Date 15:52:20utc 25-Nov-2001
  EOL Date 17:13:59utc 25-Nov-2001
 Attributes:  
   Wind Force 15.0 [knots] Dir SSW
   Swell Height 1.5 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 54.0 49.0 [meters]
   Bottomspeed  4.8 4.7 [knots]
   Featherangle sb +5.7 sb +1.6 [deg]
   Cable noise 5.6 6.0 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]

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)   2007 - 2008  
   SOL Dummy Record(s) 2009 - 2018 2009 - 2018 15:51:05 - 15:52:13
   FSP Start of Line 2019 2019 15:52:20
   MSP      
   LSP End of Line 2660 2660 17:13:59
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3996 - 3997  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2019 - 2640 2019 - 2640 15:52:20-17:10:32 Prime 16 Valid Line stopped early d/t platform
    2641 - 2660 2641 - 2660 17:10:41-17:13:59 Prime 0 Scratched NTBP d/t turn noise on streamer d/t turning off line.
 Remarks:      
   Navigation Streamer depth at 7.0m. LGSP 2640 d/t platform    
   Recording QC ### LGSP 2640 D/T TURNING OFF TO AVOID PLATFORM ### ESTIMATED EOL NOISE 6µb (30.2µ MEASURED D/T TURN NOISE) Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1004mB, pressure now 1009mB. Str 8 Bird 1 mask on External Header, occasionally deep, 8.1m.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2007 - 2436 2007 - 2436 1 301  
  2437 - 3997 2437 - 3997 1 302  
Stream 2
   Shot(s) Files Deck Reel Remark
  2007 - 2436 2007 - 2436 3 301  
  2437 - 3997 2437 - 3997 4 302  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 304, 414 Noisy traces  
2657-2660     2657-2660 NONE Bird depth out of spec Bird C1-15
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2301 Fails Crossfeed  
ALL     ALL 1191, 2164, 2806   Weak trace: 1191, 2164, 2806 more than -6 dB down
ALL     ALL 5-6, 9, 369-373, 737-745, 748, 1105-1106, 1108-1110, 1112-1113, 1841, 2209-2211 Slope alarm > 5% of total line
2020     2020 NONE Bird depth out of spec Bird C6-1
2025     2025 NONE Bird depth out of spec Bird C6-1
2028     2028 NONE Bird depth out of spec Bird C6-1
2031     2031 NONE Bird depth out of spec Bird C6-1
2035     2035 NONE Bird depth out of spec Bird C6-1
2090     2090 NONE Bird depth out of spec Bird C6-1
2099-2102     2099-2102 NONE Bird depth out of spec Bird C7-2
2100-2102     2100-2102 NONE Bird depth out of spec Bird C8-2
2105     2105 NONE Bird depth out of spec Bird C7-2
2147-2155     2147-2155 NONE Bird depth out of spec Bird C8-3
2148-2149     2148-2149 NONE Bird depth out of spec Bird C8-5
2149-2150     2149-2150 NONE Bird depth out of spec Bird C8-4
2151     2151 NONE Bird depth out of spec Bird C8-5
2157-2158     2157-2158 NONE Bird depth out of spec Bird C8-3
2216     2216 NONE Bird depth out of spec Bird C6-1
2236     2236 NONE Bird depth out of spec Bird C6-1
2244     2244 NONE Bird depth out of spec Bird C6-1
2260     2260 NONE Bird depth out of spec Bird C6-1
2285     2285 NONE Bird depth out of spec Bird C6-1
2571     2571 NONE Bird depth out of spec Bird C6-1
2574     2574 NONE Bird depth out of spec Bird C6-1
2588     2588 NONE Bird depth out of spec Bird C6-1
2605-2611     2605-2611 NONE Bird depth out of spec Bird C1-17
2605-2606     2605-2606 NONE Bird depth out of spec Bird C8-1
2607     2607 NONE Turning off line Turning off line to avoid platform - no noise visible
2612-2660     2612-2660 355-368 Bird depth out of spec Bird C1-17 d/t vessel turning to avoid platform
2628-2645     2628-2645 NONE Bird depth out of spec Bird C3-16
2632-2643     2632-2643 NONE Bird depth out of spec Bird C1-16
2641-2656     2641-2656 NONE Bird depth out of spec Bird C1-15
2642     2642 NONE Bird depth out of spec Bird C7-1
2644-2660     2644-2660 339-355 Bird depth out of spec Bird C1-16
2645     2645 NONE Turning off line Turning off line to avoid platform - Turn noise visible on nears
2646-2660     2646-2660 1075-1091 Bird depth out of spec Bird C3-16
2650     2650 NONE Bird depth out of spec Bird C7-1
2652-2654     2652-2654 NONE Bird depth out of spec Bird C1-8
2652-2660     2652-2660 NONE Bird depth out of spec Bird C7-1
2656     2656 ALL Source depth out of spec Source-depth for gun position 3-1 below 6.5 meter
2657-2660     2657-2660 NONE Bird depth out of spec Bird C1-3
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 20:44:09utc 25-Nov-2001