ACQUISITION REPORT Sequence-0119
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3520A119
  Preplot G01A3520
  Direction 198.0°
  SOL Date 23:34:15utc 15-Dec-2001
  EOL Date 05:13:30utc 16-Dec-2001
 Attributes:  
   Wind Force 18.0 [knots] Dir SW
   Swell Height 1.5 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 47.5 47.0 [meters]
   Bottomspeed  4.3 4.3 [knots]
   Featherangle port -0.8 port -3.8 [deg]
   Cable noise 12.9 7.04 [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)   4091 - 4090  
   SOL Dummy Record(s)      
   FSP Start of Line 4089 4089 23:34:15
   MSP 3909 3909 23:59:55
   LSP End of Line 1645 1645 05:13:30
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1644 - 1644  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4089 - 1645 4089 - 1645 23:34:15-05:13:30 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1004mB, pressure now 1016mB. Str 7 Bird 1 mask on External Header, occasionally deep, 8.3m. Occasional Tailbouy tugging noise at all streamer.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4091 - 3662 4091 - 3662 3 494  
  3661 - 3232 3661 - 3232 1 495  
  3231 - 2802 3231 - 2802 2 496  
  2801 - 2372 2801 - 2372 1 497  
  2371 - 1942 2371 - 1942 2 498  
  1941 - 1644 1941 - 1644 1 499  
Stream 2
   Shot(s) Files Deck Reel Remark
  4091 - 3662 4091 - 3662 3 494  
  3661 - 3232 3661 - 3232 4 495  
  3231 - 2802 3231 - 2802 3 496  
  2801 - 2372 2801 - 2372 4 497  
  2371 - 1942 2371 - 1942 3 498  
  1941 - 1644 1941 - 1644 4 499  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1191, 2307 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 2871 Noisy Trace(s)  
3065     3065 ALL Gun timing error Gun 1-2 error (ms) : -2.0
2937     2937 ALL Gun timing error Gun 1-2 error (ms) : -2.0
2269     2269 ALL Gun timing error Gun 2-2 error (ms) : -2.0
2231     2231 ALL Gun timing error Gun 1-2 error (ms) : -2.0
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1 Occassionally deep 7.9 - 8.4m
ALL     ALL 2179-2195 Streamer depth Occasional spurious bird depth data. 8.1m Min., 10m Max.
ALL     ALL 1-9, 11-12, 16, 369-380, 737-752, 755, 758, 764, 1105-1113, 1122-1126, 1129-1131, 1133, 1135, 1473, 1484-1485, 1487, 1489, 1499, 1841-1853, 1855-1856, 2209-2220, 2223, 2225, 2577, 2585-2587 Slope alarm > 5% of total line
28113-2822     2822 2179-2195 Bird depth out of spec Bird C6-16
4071     4071 ALL Gun timing error Gun 2-2 error (ms) : -1.8
3941-3932     3941-3932 2179-2195 Bird depth out of spec Bird C6-16
3937     3937 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
3710     3710 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
3563     3563 ALL Gun timing error Gun 2-2 error (ms) : -1.9
3415     3415 ALL Gun timing error Gun 2-2 error (ms) : -1.6
3408     3408 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
3371     3371 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
3323     3323 ALL Gun timing error Gun 2-2 error (ms) : -1.7
3137     3137 ALL Gun Timing Error Gun 2-2 error (ms) : -1.8
3132     3132 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
2978     2978 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
2966     2966 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
2864-2861     2864-2861 2179-2195 Bird depth out of spec Bird C6-16
2859-2858     2859-2858 2179-2195 Bird depth out of spec Bird C6-16
2856     2856 2179-2195 Bird depth out of spec Bird C6-16
2854     2854 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
2843-2833     2843-2833 2179-2195 Bird depth out of spec Bird C6-16
2831     2831 2179-2195 Bird depth out of spec Bird C6-16
2812     2812 2179-2195 Bird depth out of spec Bird C6-16
2811-2809     2811-2809 2179-2195 Bird depth out of spec Bird C6-16
2808     2808 2179-2195 Bird depth out of spec Bird C6-16
2661     2661 ALL Gun timing error Gun 2-2 error (ms) : -1.8
2627     2627 ALL Gun timing error Gun 2-2 error (ms) : -1.6
2423     2423 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
2358     2358 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
2273     2273 ALL Gun timing error Gun 1-2 error (ms) : -1.7
2245     2245 ALL Gun timing error Gun 2-2 error (ms) : -1.9
2081     2081 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
2066     2066 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
1949     1949 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
1834     1834 ALL TRISOR input NFH & ExtHdr GUNPOS block not recorded
Comment
Shot(s)     File(s) Trace(s) Type Remark
4050     4050 ALL Swell Noise Swell noise affecting approx 10% of traces, Ambient RMS 12uB
3950     3950 ALL Swell Noise Swell noise affecting approx 10% of traces, Ambient RMS 8uB
3160     3160 ALL Swell Noise Swell noise affecting <5% of traces, Ambient RMS <6uB


 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 14:10:27utc 17-Dec-2001