ACQUISITION REPORT Sequence-0166
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2224A166
  Preplot G01A2224
  Direction 18.0°
  SOL Date 04:38:11utc 31-Dec-2001
  EOL Date 09:08:59utc 31-Dec-2001
 Attributes:  
   Wind Force 10.0 [knots] Dir NE
   Swell Height 1.0 [meters] Dir NE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 48.7 39.0 [meters]
   Bottomspeed  4.7 4.3 [knots]
   Featherangle sb +1.2 port -3.4 [deg]
   Cable noise 5.3 5.8 [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)   1459 - 1460  
   SOL Dummy Record(s) 1461 - 1490 1461 - 1490 04:34:17 - 04:38:03
   FSP Start of Line 1491 1491 04:38:11
   MSP      
   LSP End of Line 3554 3554 09:08:59
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3555 - 3556  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1491 - 3554 1491 - 3554 04:38:11-09:08:59 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1013. SSE functions on TRISOR disabled, GUNPOS block NOT recorded    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1459 - 1888 1459 - 1888 2 687  
  1889 - 2318 1889 - 2318 1 688  
  2319 - 2748 2319 - 2748 2 689  
  2749 - 3178 2749 - 3178 2 690  
  3179 - 3556 3179 - 3556 2 691  
Stream 2
   Shot(s) Files Deck Reel Remark
  1459 - 1888 1459 - 1888 4 687  
  1889 - 2318 1889 - 2318 3 688  
  2319 - 2748 2319 - 2748 4 689  
  2749 - 3178 2749 - 3178 3 690  
  3179 - 3556 3179 - 3556 4 691  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1853 Killed traces  
ALL     ALL 1657, 2307, 2731 Spiking Trace(s)  
ALL     ALL 2871 Noisy Trace(s)  
1863     1863 ALL Gun timing error Gun 1-2 error (ms) : 2.0
1947     1947 ALL Gun timing error Gun 1-2 error (ms) : 2.0
1952     1952 ALL Gun timing error Gun 5-2 error (ms) : -2.3
2044     2044 ALL Gun timing error Gun 5-2 error (ms) : -2.0
2046     2046 ALL Gun timing error Gun 5-2 error (ms) : -2.1
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2301   Fails Crossfeed
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1 occasional deep, 7.9m - 8.2m
ALL     ALL 737-738, 741, 1105-1113, 2209-2211, 2213-2214 Slope alarm > 5% of total line
1830     1830 ALL Gun timing error Gun 5-2 error (ms) : 1.8
1873     1873 ALL Gun timing error Gun 1-2 error (ms) : 1.8
1883     1883 2195-2576 Bird depth out of spec Bird C6-17
1945     1945 ALL Gun timing error Gun 1-2 error (ms) : 1.8
2048     2048 ALL Gun timing error Gun 5-2 error (ms) : -1.6
2052     2052 ALL Gun timing error Gun 5-2 error (ms) : -1.9
2308     2308 ALL Gun timing error Gun 5-2 error (ms) : -1.6
3099     3099 2577-2581 Bird depth out of spec Bird C8-1
3101     3101 2577-2581 Bird depth out of spec Bird C8-1
Comment
Shot(s)     File(s) Trace(s) Type Remark
2206     2206 ALL Air Pressure Adjustment Air pressure to arrays increased from 1980 psi to 2010 psi


 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 15:27:33utc 31-Dec-2001