ACQUISITION REPORT Sequence-0149
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2864B149
  Preplot G01A2864
  Direction 18.0°
  SOL Date 06:06:45utc 24-Dec-2001
  EOL Date 07:36:16utc 24-Dec-2001
 Attributes:  
   Wind Force 10.0 [knots] Dir SW
   Swell Height 1.0 [meters] Dir SW
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 47.0 42.0 [meters]
   Bottomspeed  4.8 4.6 [knots]
   Featherangle sb +23.6 sb +0.3 [deg]
   Cable noise 29.26 5.89 [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)   3268 - 3269  
   SOL Dummy Record(s) 3270 - 3299 3270 - 3299 06:02:58 - 06:06:38
   FSP Start of Line 3300 3300 06:06:45
   MSP      
   LSP End of Line 3993 3993 07:36:16
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3994 - 3995  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3300 - 3514 3300 - 3514 06:06:45-06:34:01 Reshoot 0 Scratched Streamers still bend.
    3515 - 3993 3515 - 3993 06:34:09-07:36:16 Reshoot 16 Valid FGSP SP 3515, streamers straight.
 Remarks:      
   Navigation Streamer depth 7.0 m    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1000 mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. Bend noise still remain during SOL noise records.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  3268 - 3697 3268 - 3697 1 616  
  3698 - 3995 3698 - 3995 2 617  
Stream 2
   Shot(s) Files Deck Reel Remark
  3268 - 3697 3268 - 3697 4 616  
  3698 - 3995 3698 - 3995 3 617  

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)  
3566-3575     3566-3575 75-91 Bird depth out of spec Bird C1-5
3569-3575     3569-3575 51-67 Bird depth out of spec Bird C1-4
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1599, 2034   Fail crossfeed test
ALL     ALL 2209-2213 Bird depth out of spec Bird C7-1 occasional deep, 7.9m - 8.2m
ALL     ALL 269-373 Bird depth out of spec Bird C2-1 occasional shallow 5.9m - 5.7m
ALL     ALL 1-13, 16, 369-374, 376-377, 379-380, 737-742, 744-748, 751, 1105-1113, 1123-1126, 1130-1131, 1135, 2209-2211, 2213-2219, 2223, 2577, 2585-2587 Slope alarm > 5% of total line
3563-3565     3563-3565 75-91 Bird depth out of spec Bird C1-5
3566-3568     3566-3568 51-67 Bird depth out of spec Bird C1-4
3566-3577     3566-3577 99-115 Bird depth out of spec Bird C1-6
3576-3579     3576-3579 51-67 Bird depth out of spec Bird C1-4
3576-3581     3576-3581 75-91 Bird depth out of spec Bird C1-5
3583     3583 99-115 Bird depth out of spec Bird C1-6
3585-3589     3585-3589 75-91 Bird depth out of spec Bird C1-5
3586     3586 99-115 Bird depth out of spec Bird C1-6
3617     3617 419-435 Bird depth out of spec Bird C2-4
3795-3797     3795-3797 373-387 Bird depth out of spec Bird C2-2
3823-3828     3823-3828 419-435 Bird depth out of spec Bird C2-4
Comment
Shot(s)     File(s) Trace(s) Type Remark
3300-3400     3300-3400 ALL Streamer noise Bend noise moving down on all streamer, amplitude 30-100 uB
3401-3460     3401-3460 ALL Bird depth out of spec Bend noise moving down on all streamer, amplitude 20 uB
3515-3993     3515-3993 ALL Swell Noise Occasional swell burst seen on all streamers


 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 07:48:34utc 24-Dec-2001