ACQUISITION REPORT Sequence-0286
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4560A286
  Preplot G01A4560
  Direction 18.0°
  SOL Date 00:28:29utc 17-Feb-2002
  EOL Date 06:32:06utc 17-Feb-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir SW
   Swell Height 1.5 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 92 [avg]  
       
  SOL EOL  
   Waterdepth 181.7 55.0 [meters]
   Bottomspeed  4.7 3.9 [knots]
   Featherangle sb +1.7 port -3.4 [deg]
   Cable noise 4.4 4.75 [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)   1725 - 1726  
   SOL Dummy Record(s) 1727 - 1756 1727 - 1756 00:24:38 - 00:28:22
   FSP Start of Line 1757 1757 00:28:29
   MSP      
   LSP End of Line 4316 4316 06:32:06
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4317 - 4318  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1757 - 4316 1757 - 4316 00:28:29-06:32:06 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 7m, Excessive noise on SOL noise record due to strong currents    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1017mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB gun firing on ODD SP.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1725 - 2154 1725 - 2154 1 1142  
  2155 - 2584 2155 - 2584 2 1143  
  2585 - 3014 2585 - 3014 1 1144  
  3015 - 3444 3015 - 3444 1 1145  
  3445 - 3874 3445 - 3874 2 1146  
  3875 - 4304 3875 - 4304 1 1147  
  4305 - 4318 4305 - 4318 2 1148  
Stream 2
   Shot(s) Files Deck Reel Remark
  1725 - 2154 1725 - 2154 3 1142  
  2155 - 2584 2155 - 2584 3 1143  
  2585 - 3014 2585 - 3014 3 1144  
  3015 - 3444 3015 - 3444 4 1145  
  3445 - 3874 3445 - 3874 4 1146  
  3875 - 4304 3875 - 4304 3 1147  
  4305 - 4318 4305 - 4318 4 1148  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1633 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 109, 1657, 2641 Spiking Trace(s)  
ALL     ALL 1495 Noisy Trace(s)  
2482-2495     2482-2495 2259-2275 Bird depth out of spec Bird C7-4, max depth 10.5m
2521     2521 ALL Gun timing error Gun 3-1 error (ms) : -2.1
3145-3151     3145-3151 2283-2299 Bird depth out of spec Bird C7-5, max depth 9.5m
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2034 Crossfeed Occasionally fails crossfeed
ALL     ALL 2209-2213 Bird depth out of spec Streamer #7 bird 1 occassionally deep 8.1-8.4
ALL     ALL 1-13, 16, 369-380, 382-383, 390, 405, 737-761, 763-764, 768-770, 1105-1145, 1147-1148, 1164, 1473, 1480-1489, 1493-1495, 1508, 1512, 1514, 1516, 1841-1857, 1860-1867, 1873, 1875, 2209-2226, 2229-2232, 2236-2237, 2239, 2243, 2246, 2577-2578, 2582, 2584-2588, 2602, 2629 Slope alarm > 5% of total line
1757-1794     1757-1794 2705-2805 Streamer noise Excessive noise due to current
2455-2463     2455-2463 2651-2667 Bird depth out of spec Bird C8-5
2479-2495     2479-2495 2283-2299 Bird depth out of spec Bird C7-5
2481-2490     2481-2490 2235-2251 Bird depth out of spec Bird C7-3
2484     2484 ALL Gun timing error Gun 5-4 error (ms) : -1.1
2541-2550     2541-2550 2259-2275 Bird depth out of spec Bird C7-4
2874     2874 ALL Gun Timing Error Gun 5-4 error (ms) : -1.1
3018     3018 ALL Gun Timing Error Gun 5-4 error (ms) : -1.2
3031-3045     3031-3045 2651-2667 Bird depth out of spec Bird C8-5
3044-3058     3044-3058 2283-2299 Bird depth out of spec Bird C7-5
3055-3067     3055-3067 2307-2323 Bird depth out of spec Bird C7-6
3060     3060 ALL Gun timing error Gun 5-4 error (ms) : -1.2
3146-3158     3146-3158 2307-2323 Bird depth out of spec Bird C7-6
3166-3176     3166-3176 2627-2643 Bird depth out of spec Bird C8-4
3194-3206     3194-3206 2675-2691 Bird depth out of spec Bird C8-6
3699     3699 ALL Gun Timing Error Gun 3-1 error (ms) : 1.6
3978     3978 ALL Gun timing error Gun 5-4 error (ms) : -1.1
4252     4252 ALL Gun timing error Gun 5-4 error (ms) : -1.1
Comment
Shot(s)     File(s) Trace(s) Type Remark
2840-3000     2840-3000 ALL Ship Noise From astern. Level <5 uBar. Moveout 300 ms/km


 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 07:24:12utc 17-Feb-2002