ACQUISITION REPORT Sequence-0122
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3136J122
  Preplot G01A3136
  Direction 18.0°
  SOL Date 23:34:28utc 16-Dec-2001
  EOL Date 04:58:44utc 17-Dec-2001
 Attributes:  
   Wind Force 8.0 [knots] Dir SSW
   Swell Height 1.5 [meters] Dir SSW
   Propellor rpm 122 [avg]  
   Propellor pitch 88 [avg]  
       
  SOL EOL  
   Waterdepth 60.3 43.5 [meters]
   Bottomspeed  4.8 4.6 [knots]
   Featherangle sb +2.6 port -0.7 [deg]
   Cable noise 6.1 5.84 [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)   1567 - 1568  
   SOL Dummy Record(s) 1569 - 1598 1569 - 1598 23:30:40 - 23:34:21
   FSP Start of Line 1599 1599 23:34:28
   MSP 1796 1796 23:59:57
   LSP End of Line 4111 4111 04:58:44
   EOL Dummy Record(s)      
   EOL Noise Record(s)   4112 - 4113  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1599 - 4111 1599 - 4111 23:34:28-04:58:44 Reshoot 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 1015mB. Str7 Bird 1 mask on External Header, occasionally deep, 7.8-8.2m.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1567 - 1996 1567 - 1996 1 511  
  1997 - 2426 1997 - 2426 2 512  
  2427 - 2856 2427 - 2856 1 513  
  2857 - 3286 2857 - 3286 2 514  
  3287 - 3716 3287 - 3716 1 515  
  3717 - 4113 3717 - 4113 2 516  
Stream 2
   Shot(s) Files Deck Reel Remark
  1567 - 1996 1567 - 1996 3 511  
  1997 - 2426 1997 - 2426 4 512  
  2427 - 2856 2427 - 2856 4 513  
  2857 - 3286 2857 - 3286 4 514  
  3287 - 3716 3287 - 3716 3 515  
  3717 - 4113 3717 - 4113 4 516  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1191, 2307 Weak Trace(s) Trace signal less than -3dB of nominal value
ALL     ALL 2871 Noisy Trace(s)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2209-2213 Bird out of spec Bird C7-1 deep all line approx. 7.8 - 8.2m
ALL     ALL 1227, 2307 Crossfeed Fails crossfeed test
ALL     ALL 1, 3-9, 12, 369-374, 377, 737-749, 751, 1105-1113, 1126, 1130, 1473, 1841-1843, 1845-1850, 1852, 2209-2211, 2213-2214, 2217 Slope alarm > 5% of total line
2362-2364     2362-2364 75-91 Bird depth out of spec Bird C1-5
2987     2987 2577-2581 Bird depth out of spec Bird C8-1
3009     3009 219-235 Bird depth out of spec Bird C1-11
3042-3044     3042-3044 395-411 Bird depth out of spec Bird C2-3
3046     3046 419-435 Bird depth out of spec Bird C2-4
3340     3340 419-435 Bird depth out of spec Bird C2-4
3399-3400     3399-3400 51-67 Bird depth out of spec Bird C1-4
3519     3519 419-435 Bird depth out of spec Bird C2-4
3521     3521 419-435 Bird depth out of spec Bird C2-4
3562     3562 419-435 Bird depth out of spec Bird C2-4
3564-3570     3564-3570 419-435 Bird depth out of spec Bird C2-4
3572     3572 419-435 Bird depth out of spec Bird C2-4
3921     3921 ALL Gun timing error Gun 1-2 error (ms) : -1.6
Comment
Shot(s)     File(s) Trace(s) Type Remark


 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 08:17:23utc 17-Dec-2001