ACQUISITION REPORT Sequence-0218
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A1424A218
  Preplot G01A1424
  Direction 198.0°
  SOL Date 01:59:40utc 22-Jan-2002
  EOL Date 05:33:07utc 22-Jan-2002
 Attributes:  
   Wind Force 14.0 [knots] Dir SE
   Swell Height 2.0 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 20.0 38.0 [meters]
   Bottomspeed  4.2 5.0 [knots]
   Featherangle port -3.5 sb +5.0 [deg]
   Cable noise 8.4 11.1 [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)   2616 - 2615  
   SOL Dummy Record(s) 2614 - 2605 2614 - 2605 01:58:17 - 01:59:32
   FSP Start of Line 2604 2604 01:59:40
   MSP      
   LSP End of Line 932 932 05:33:07
   EOL Dummy Record(s)      
   EOL Noise Record(s)   931 - 930  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2604 - 932 2604 - 932 01:59:40-05:33:07 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC False gun autofire detect on gun 5-4, affected shots are GOOD. Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1013mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. Swell noise seen on all cables approx 10-20 %. All gun DI's slightly erratic d/t swell.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2616 - 2187 2616 - 2187 1 904  
  2186 - 1757 2186 - 1757 2 905  
  1756 - 1327 1756 - 1327 1 906  
  1326 - 930 1326 - 930 2 907  
Stream 2
   Shot(s) Files Deck Reel Remark
  2616 - 2187 2616 - 2187 3 904  
  2186 - 1757 2186 - 1757 4 905  
  1756 - 1327 1756 - 1327 3 906  
  1326 - 930 1326 - 930 3 907  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 1255 Killed traces  
ALL     ALL- 1853 Killed traces  
ALL     ALL 172, 2871 Noisy Traces  
ALL     ALL 2641 Occ Spiking  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2034 Fails Crossfeed  
ALL     ALL 1-16, 20, 369-383, 737-752, 1105-1113, 1126, 1130, 1473-1478, 1480-1485, 1487, 1489, 1499, 2209-2227, 2229-2232, 2239, 2577-2593, 2601-2606 Slope alarm > 5% of total line
2544     2544 ALL False Gun autofire detect Gun 5-4 at 140 ms after aimpoint
2542     2542 ALL False Gun autofire detect Gun 5-4 at 140 ms after aimpoint
2494     2494 ALL False Gun autofire detect Gun 5-4 at 130 ms after aimpoint
2491     2491 ALL Gun timing error Gun 2-3 error (ms) : 1.6
2438     2438 ALL False Gun autofire detect Gun 5-4 at 140 ms after aimpoint
2365     2365 ALL Gun timing error Gun 2-3 error (ms) : 1.4
2351     2351 ALL Gun timing error Gun 3-4 error (ms) : 1.1
2311     2311 ALL Gun timing error Gun 2-3 error (ms) : 1.6
2255     2255 ALL Gun timing error Gun 3-4 error (ms) : 1.8
2193     2193 ALL False Gun autofire detect Gun 5-4 at 140 ms after aimpoint
2193     2193 ALL Gun Timing Error Gun 2-3 1.8 ms
2138     2138 ALL False Gun autofire detect Gun 5-4 at 130 ms after aimpoint
1924     1924 ALL False Gun autofire detect Gun 5-4 at 140 ms after aimpoint
1880     1880 ALL False Gun autofire detect Gun 5-4 at 140 ms after aimpoint
1872     1872 ALL False Gun autofire detect Gun 5-4 at 130 ms after aimpoint
1868     1868 ALL False Gun autofire detect Gun 5-4 at 130 ms after aimpoint
1858     1858 ALL False Gun autofire detect Gun 5-4 at 130 ms after aimpoint
1856     1856 ALL False Gun autofire detect Gun 5-4 at 130 ms after aimpoint
1762     1762 ALL False Gun autofire detect Gun 5-4 at 140 ms after aimpoint
1588     1588 ALL False Gun autofire detect Gun 5-4 at 130 ms after aimpoint
1508     1508 ALL False Gun autofire detect Gun 5-4 at 140 ms after aimpoint
1438     1438 ALL False Gun autofire detect Gun 5-4 at 130 ms after aimpoint
1314     1314 ALL False Gun autofire detect Gun 5-4 at 130 ms after aimpoint
1308     1308 ALL False Gun autofire detect Gun 5-4 at 130 ms after aimpoint
1306     1306 ALL False Gun autofire detect Gun 5-4 at 130 ms after aimpoint
1292     1292 ALL False Gun autofire detect Gun 5-4 at 140 ms after aimpoint
1274     1274 ALL False Gun autofire detect Gun 5-4 at 130 ms after aimpoint
1224     1224 ALL False Gun autofire detect Gun 5-4 at 140 ms after aimpoint
1180     1180 ALL False Gun autofire detect Gun 5-4 at 140 ms after aimpoint
1120     1120 ALL False Gun autofire detect Gun 5-4 at 140 ms after aimpoint
1093     1093 ALL Gun timing error Gun 2-3 error (ms) : 1.3
1048     1048 ALL False Gun autofire detect Gun 5-4 at 140 ms after aimpoint
962     962 ALL False Gun autofire detect Gun 5-4 at 130 ms after aimpoint
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL NONE Bad Bird Bird 4-17 no comms
ALL     ALL ALL Swell Noise Swell noise seen on all cables approx 10 - 20 %
ALL     ALL NONE Bad Comms Bird 1-15 int comms


 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 06:02:23utc 22-Jan-2002