ACQUISITION REPORT Sequence-0316
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3872A316
  Preplot G01A3872
  Direction 198.0°
  SOL Date 16:01:08utc 13-Mar-2002
  EOL Date 21:58:49utc 13-Mar-2002
 Attributes:  
   Wind Force 7.0 [knots] Dir W
   Swell Height 1.0 [meters] Dir SSW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 49.0 67.0 [meters]
   Bottomspeed  4.6 4.6 [knots]
   Featherangle port -2.0 sb +1.6 [deg]
   Cable noise 5.6 6.2 [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)   4200 - 4199  
   SOL Dummy Record(s) 4198 - 4169 4198 - 4169 15:57:16 - 16:01:00
   FSP Start of Line 4168 4168 16:01:08
   MSP      
   LSP End of Line 1470 1470 21:58:49
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1469 - 1468  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4168 - 1470 4168 - 1470 16:01:08-21:58:49 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m. NAVRT External Header Block defines Job No. 9170B    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1031mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP. Bird#18 str#2 masked on EX.Header    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4200 - 3771 4200 - 3771 2 1296  
  3770 - 3341 3770 - 3341 1 1297  
  3340 - 2911 3340 - 2911 2 1298  
  2910 - 2481 2910 - 2481 2 1299  
  2480 - 2051 2480 - 2051 2 1300  
  2050 - 1621 2050 - 1621 2 1301  
  1620 - 1469 1620 - 1469 2 1302  
Stream 2
   Shot(s) Files Deck Reel Remark
  4200 - 3771 4200 - 3771 3 1296  
  3770 - 3341 3770 - 3341 4 1297  
  3340 - 2911 3340 - 2911 3 1298  
  2910 - 2481 2910 - 2481 4 1299  
  2480 - 2051 2480 - 2051 3 1300  
  2050 - 1621 2050 - 1621 4 1301  
  1620 - 1469 1620 - 1469 3 1302  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2599 Killed Trace(s)  
ALL     ALL 1476, 1633, 2782 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 1657, 2389, 2600, 2641 Spiking Trace(s)  
ALL     ALL 2772 Noisy Trace(s)  
3485-3461     3485-3461 75-91 Bird depth out of spec Bird C1-5
2976-2975     2976-2975 ALL Spiking Trace(s) Disabled oscillators due to dual oscillators running
2643-2628     2643-2628 51-67 Bird depth out of spec Bird C1-4
2641-2630     2641-2630 419-435 Bird depth out of spec Bird C2-4
2628-2620     2628-2620 75-91 Bird depth out of spec Bird C1-5
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1 occasionally deep, 8.1 - 8.4m
ALL     ALL 2577-2581 Bird depth out of spec Bird C8-1 occasionally deep, 8.1m - 8.4m
ALL     ALL 1-17, 20, 22, 369-384, 388, 390, 737-761, 763-764, 1105-1117, 1121-1135, 1137-1138, 1147, 1473, 1478, 1480-1485, 1487, 1489, 1841-1857, 1860-1867, 1873, 2209-2226, 2229-2230, 2232, 2577, 2581-2582, 2584-2589, 2591, 2593, 2601-2602 Slope alarm > 5% of total line
3608-3584     3608-3584 147-163 Bird depth out of spec Bird C1-8
3525-3485     3525-3485 147-163 Bird depth out of spec Bird C1-8
3484     3484 ALL Gun timing error Gun 5-4 error (ms) : 1.1
3480-3469     3480-3469 51-67 Bird depth out of spec Bird C1-4
3234     3234 ALL Gun timing error Gun 5-4 error (ms) : 1.1
2868     2868 ALL Gun timing error Gun 5-4 error (ms) : 1.3
2830     2830 ALL Gun timing error Gun 5-4 error (ms) : 1.1
2694-2684     2694-2684 419-435 Bird depth out of spec Bird C2-4
2656-2644     2656-2644 51-67 Bird depth out of spec Bird C1-4
2649-2641     2649-2641 399-428 Monowing wash Low frequency, high amplitude noise due to monowing wash
2639-2629     2639-2629 34-62 Monowing wash Low frequency, high amplitude noise due to monowing wash
2636-2628     2636-2628 443-459 Bird depth out of spec Bird C2-5
2623-2612     2623-2612 443-459 Bird depth out of spec Bird C2-5
2619-2600     2619-2600 75-91 Bird depth out of spec Bird C1-5
2616-2602     2616-2602 51-67 Bird depth out of spec Bird C1-4
2444     2444 ALL Gun timing error Gun 5-4 error (ms) : 1.1
2420-2400     2420-2400 419-435 Bird depth out of spec Bird C2-4
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 04:00:42utc 14-Mar-2002