ACQUISITION REPORT Sequence-0345
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4608B345
  Preplot G01A4608
  Direction 18.0°
  SOL Date 23:08:27utc 07-Apr-2002
  EOL Date 02:09:25utc 08-Apr-2002
 Attributes:  
   Wind Force 18.0 [knots] Dir NE
   Swell Height 2.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 207.0 104.0 [meters]
   Bottomspeed  3.4 3.8 [knots]
   Featherangle port -2.8 port -0.3 [deg]
   Cable noise 14.7 12.5 [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
0 STBD -345.0 25.0 -6.0 0.0 0 0
0 STBD -345.0 -25.0 -6.0 0.0 0 0

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)   1764 - 1765  
   SOL Dummy Record(s) 1766 - 1775 1766 - 1775 23:06:42 - 23:08:16
   FSP Start of Line 1776 1776 23:08:27
   MSP 2082 2082 23:59:59
   LSP End of Line 2908 2908 02:09:25
   EOL Dummy Record(s) 3760 - 3877 3760 - 3877 15:39:44 - 15:24:50
   EOL Noise Record(s)   2909 - 2910  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1776 - 2314 1776 - 2314 23:08:27-00:37:18 Reshoot 16 Valid Reshoot seq 328 swell noise
    2315 - 2324 2315 - 2324 00:37:27-00:38:53 Reshoot 16 Valid O/lap sp's
    2325 - 2620 2325 - 2620 00:39:02-01:24:38 Unknown 0 Unknown All data NTBP- seismic gap
    2621 - 2756 2621 - 2756 01:24:48-01:45:49 Reshoot 16 Valid O/lap sp's
    2757 - 2898 2757 - 2898 01:45:58-02:07:52 Reshoot 16 Valid Reshoot seq 328 current/swell noise
    2899 - 2908 2899 - 2908 02:08:01-02:09:25 Reshoot 16 Valid O/lap sp's
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1027mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1764 - 2193 1764 - 2193 1 1422  
  2194 - 2623 2194 - 2623 2 1423  
  2624 - 2910 2624 - 2910 2 1424  
Stream 2
   Shot(s) Files Deck Reel Remark
  1764 - 2193 1764 - 2193 3 1422  
  2194 - 2623 2194 - 2623 4 1423  
  2624 - 2910 2624 - 2910 3 1424  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1159, 2871 Noisy Trace(s)  
ALL     ALL 2265, 1801, 1553 Spiking Trace(s)  
ALL     ALL 1476 Weak Trace(s) Trace signal less than -6dB of nominal value
2263-2279     2263-2279 2627-2643 Streamer depth Streamer depth out of spec, Bird 8-4 max 11 mtrs m.
2314-2328     2314-2328 2651-2667 Streamer depth Streamer depth out of spec, Bird 8-5 min 4.2 mtrs
2320-2336     2320-2336 2675-2691 Streamer depth Streamer depth out of spec, Bird 8-6 min 4.3 m.
2323-2338     2323-2338 2627-2643 Streamer depth Streamer depth out of spec, Bird 8-4 min 4.5 m m.
2325-2620     2325-2620 ALL Seismic gap No valid data aquired, Seismic gap
2496-2504     2496-2504 2627-2643 Streamer depth Streamer depth out of spec, Bird 8-4 min 4.4 m.
2864-2867     2864-2867 2675-2691 Bird depth out of spec Bird C8-6
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Swell Noise Swell noise seen from sol approx 10-15%
1792-1811     1792-1811 NONE Streamer depth Streamer depth out of spec, Bird 8-6 min 4.7 m.
1821-1839     1821-1839 NONE Streamer depth Streamer depth out of spec, Bird 8-4 Max 8.7 m.
1892-1940     1892-1940 NONE Streamer depth Streamer depth out of spec, Bird 8-4 Max 8.9 m.
2020-2035     2020-2035 NONE Streamer depth Streamer depth out of spec, Bird 8-6 min 4.7 m.
2037-2058     2037-2058 NONE Streamer depth Streamer depth out of spec, Bird 8-4 Max 9.1 m.
2039-2056     2039-2056 NONE Streamer depth Streamer depth out of spec, Bird 8-5 max 8.7 m.
2039-2052     2039-2052 NONE Streamer depth Streamer depth out of spec, Bird 8-5 max 8.7 mtrs
2087-2100     2087-2100 NONE Streamer depth Streamer depth out of spec, Bird 8-4 Max 9.2 m.
2097-2111     2097-2111 NONE Streamer depth Streamer depth out of spec, Bird 8-6 max 8.9 m.
2218     2218 ALL Gun timing error Gun 5-2 error (ms) : -1.8
2262-2285     2262-2285 NONE Streamer depth Streamer depth out of spec, Bird 8-5 max 9.0 mtrs m.
2263-2279     2263-2279 NONE Streamer depth Streamer depth out of spec, Bird 8-4 max 11m m.
2380     2380 ALL Gun timing error Gun 5-4 error (ms) : 1.1
2584     2584 ALL Gun timing error Gun 5-4 error (ms) : 1.1
2702     2702 ALL Gun timing error Gun 5-2 error (ms) : 1.6
2736     2736 ALL Gun timing error Gun 5-2 error (ms) : 1.6
2800     2800 ALL Gun timing error Gun 5-2 error (ms) : 1.7
2862     2862 ALL Gun timing error Gun 5-2 error (ms) : 1.6
2879-2889     2879-2889 2699-2715 Bird depth out of spec Bird C8-7
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 05:43:14utc 08-Apr-2002