ACQUISITION REPORT Sequence-0252
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A1040J252
  Preplot G01A1040
  Direction 18.0°
  SOL Date 06:57:27utc 03-Feb-2002
  EOL Date 08:53:40utc 03-Feb-2002
 Attributes:  
   Wind Force 18.0 [knots] Dir SSW
   Swell Height 2.0 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 29.0 15.0 [meters]
   Bottomspeed  6.4 5.0 [knots]
   Featherangle port -7.3 sb +0.2 [deg]
   Cable noise 6.3 13.1 [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)   993 - 994  
   SOL Dummy Record(s) 995 - 1004 995 - 1004 06:56:03 - 06:57:19
   FSP Start of Line 1005 1005 06:57:27
   MSP      
   LSP End of Line 1900 1900 08:53:40
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2110 - 2111  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1005 - 1299 1005 - 1299 06:57:27-07:37:22 Infill 0 Scratched  
    1300 - 1900 1300 - 1900 07:37:30-08:53:40 Infill 16 Valid FGSP = 1300 d/t source geometry
 Remarks:      
   Navigation Streamer depth at 7m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1020mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. Compass 5-5 bad    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  993 - 1422 993 - 1422 1 1023  
  1423 - 1852 1423 - 1852 1 1024  
  1853 - 2111 1853 - 2111 2 1025  
Stream 2
   Shot(s) Files Deck Reel Remark
  993 - 1422 993 - 1422 3 1023  
  1423 - 1852 1423 - 1852 4 1024  
  1853 - 2111 1853 - 2111 3 1025  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1495 Noisy Channel  
1603     1603 ALL Gun timing error Gun 1-2 error (ms) : -2.3
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Slope overload  
ALL     ALL 2034 Fails Crossfeed  
ALL     ALL 1-20, 22-24, 369-383, 385, 389-390, 737-753, 755, 758-759, 763-764, 1105-1117, 1126, 1473, 1841-1856, 1860-1861, 2209-2227, 2229-2232, 2577-2578, 2581-2582, 2584-2593, 2601-2604 Slope alarm > 5% of total line
ALL     ALL 1841-2208 Parity errors Low level parity errors observed streamer 6
ALL     ALL NONE Bad compass Compass 5-5 bad
1022     1022 ALL Gun timing error Gun 5-4 error (ms) : -1.3
1129-1141     1129-1141 NONE Bird depth out of spec Bird C2-4 shallow min 5.4 mtrs
1145-1180     1145-1180 NONE Bird depth out of spec Bird C2-5 shallow min 4.9 mtrs (<5sp's for <5mtrs)
1153-1162     1153-1162 NONE Bird depth out of spec Bird C1-5 deep max 8.2 mtrs
1167-1193     1167-1193 NONE Bird depth out of spec Bird C2-6 shallow min 5.2 mtrs
1192     1192 ALL Gun timing error Gun 5-4 error (ms) : -1.3
1198     1198 ALL Gun timing error Gun 5-4 error (ms) : -1.1
1430     1430 ALL Gun timing error Gun 5-4 error (ms) : -1.3
1460     1460 ALL Gun timing error Gun 5-4 error (ms) : -1.3
1764     1764 ALL Gun timing error Gun 5-4 error (ms) : -1.2
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL ALL Swell Noise Swell Noise seen on all cables approx 5-10%
1300     1300 ALL FGSP First good shotpoint
1790     1790 ALL Turning Offline Vsl turning offline to Stbd d/t shallows
1856     1856 ALL Front end noise Front end noise seen all cables d/t vsl turning offline
1900     1900 NONE Last Sp Last SP of line


 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 15:12:44utc 04-Feb-2002