ACQUISITION REPORT Sequence-0246
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A1200A246
  Preplot G01A1200
  Direction 18.0°
  SOL Date 03:28:11utc 31-Jan-2002
  EOL Date 06:38:56utc 31-Jan-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir SE
   Swell Height 1.5 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 32.0 15.0 [meters]
   Bottomspeed  4.3 4.9 [knots]
   Featherangle port -4.5 port -7.0 [deg]
   Cable noise 5.6 20.8 [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)   1013 - 1014  
   SOL Dummy Record(s) 1015 - 1024 1015 - 1024 03:26:48 - 03:28:03
   FSP Start of Line 1025 1025 03:28:11
   MSP      
   LSP End of Line 2483 2483 06:38:56
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2484 - 2485  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1025 - 2483 1025 - 2483 03:28:11-06:38:56 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1018mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. QC mask on bird 14 cable 2, running shallow during line, see annotations for details.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1013 - 1442 1013 - 1442 1 1000  
  1443 - 1872 1443 - 1872 2 1001  
  1873 - 2302 1873 - 2302 1 1002  
  2303 - 2485 2303 - 2485 2 1003  
Stream 2
   Shot(s) Files Deck Reel Remark
  1013 - 1442 1013 - 1442 3 1000  
  1443 - 1872 1443 - 1872 3 1001  
  1873 - 2302 1873 - 2302 4 1002  
  2303 - 2485 2303 - 2485 3 1003  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 1255 Killed traces  
ALL     ALL 1494, 2307 Noisy trace  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-20, 22-24, 369-383, 385, 389-390, 737-753, 755, 758, 764, 1105-1116, 1126, 1130, 1473-1485, 1487, 1841-1858, 1860-1861, 1864, 2209-2227, 2229-2232, 2236, 2239, 2577-2593, 2601-2606 Slope alarm > 5% of total line
1025-1490     1025-1490 659-675 Bird depth out of spec Bird C2-14 running shallow (approx 3-4m) average 6.0 mtrs rest of line
1027-2481     1027-2481 NONE Bird depth out of spec Bird 5-1 running shallow min 5.7 mtrs
2109     2109 ALL Gun timing error Gun 2-6 error (ms) : -1.1
2426-2429     2426-2429 NONE Bird depth out of spec Bird C7-4 running deep max 9.9 mtrs ( <5sp's for > 9mtrs)
Comment
Shot(s)     File(s) Trace(s) Type Remark
2330     2330 ALL Turning Offline Vsl turning offline to stbd d/t shallows
2429     2429 NONE Bend Noise Front end noise seen d/t turn, all cables


 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 07:07:24utc 31-Jan-2002