ACQUISITION REPORT Sequence-0128
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3536B128
  Preplot G01A3536
  Direction 198.0°
  SOL Date 22:10:59utc 18-Dec-2001
  EOL Date 01:42:33utc 19-Dec-2001
 Attributes:  
   Wind Force 1.0 [knots] $(wind_dir)
   Swell Height 1.0 [meters] $(swell_dir)
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 47.0 56.0 [meters]
   Bottomspeed  4.7 4.8 [knots]
   Featherangle port -3.2 sb +1.8 [deg]
   Cable noise 5.7 4.89 [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)   4125 - 4124  
   SOL Dummy Record(s) 4123 - 4094 4123 - 4094 22:07:04 - 22:10:51
   FSP Start of Line 4093 4093 22:10:59
   MSP 3236 3236 23:59:54
   LSP End of Line 2407 2407 01:42:33
   EOL Dummy Record(s) 2406 - 2403 2406 - 2403 01:42:41 - 01:43:03
   EOL Noise Record(s)   1651 - 1650  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4093 - 2407 4093 - 2407 22:10:59-01:42:33 Reshoot 16 Valid Line aborted due to Whales
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1015mB. Str 7 Bird 1 mask on External Header, occasionally deep.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4125 - 3696 4125 - 3696 1 542  
  3695 - 3266 3695 - 3266 2 543  
  3265 - 2836 3265 - 2836 1 544  
  2835 - 2406 2835 - 2406 4 545  
  2405 - 1650 2405 - 1650 2 546  
Stream 2
   Shot(s) Files Deck Reel Remark
  4125 - 3696 4125 - 3696 3 542  
  3695 - 3266 3695 - 3266 4 543  
  3265 - 2836 3265 - 2836 3 544  
  2835 - 2406 2835 - 2406 4 545  
  2405 - 1650 2405 - 1650 3 546  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2307, 2731 Spiking Trace(s)  
ALL     ALL 2871 Noisy Trace(s)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1 occassionally deep, 8.3m
ALL     ALL 1459, 1465, 2034 Crossfeed Fails crossfeed test
ALL     ALL 1-13, 16, 369-381, 383, 390, 737-755, 757-758, 760-761, 763-764, 1105-1113, 1122-1126, 1129-1133, 1135, 1473, 1481-1485, 1487-1489, 1493, 1495, 1498-1499, 1509, 1841-1857, 1860, 1864, 2209-2220, 2223-2226, 2229, 2232, 2577, 2585-2588 Slope alarm > 5% of total line
3965     3965 ALL Gun timing error Gun 1-2 error (ms) : -1.8
3531     3531 ALL Gun timing error Gun 1-2 error (ms) : -1.6
2407     2407 ALL   LGSP
Comment
Shot(s)     File(s) Trace(s) Type Remark
2850     2850 ALL   Passing abeam Marlin-rig DC330. BSP 4.98 knots
2406-2403     2406-2403 ALL Gun disabled All guns disabled due to whales, line aborted.


 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 04:33:23utc 19-Dec-2001