ACQUISITION REPORT Sequence-0274
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2080K274
  Preplot G01A2080
  Direction 18.0°
  SOL Date 00:12:50utc 14-Feb-2002
  EOL Date 01:11:25utc 14-Feb-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir NE
   Swell Height 1.0 [meters] Dir E
   Propellor rpm 122 [avg]  
   Propellor pitch 90 [avg]  
       
  SOL EOL  
   Waterdepth 42.5 41.0 [meters]
   Bottomspeed  4.8 4.3 [knots]
   Featherangle sb +2.1 port -2.8 [deg]
   Cable noise 5.4 4.2 [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)   2617 - 2618  
   SOL Dummy Record(s) 2619 - 2648 2619 - 2648 00:08:48 - 00:12:42
   FSP Start of Line 2649 2649 00:12:50
   MSP      
   LSP End of Line 3072 3072 01:11:25
   EOL Dummy Record(s) 3073 - 3090 3073 - 3090 01:11:34 - 01:13:59
   EOL Noise Record(s)   3405 - 3406  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2649 - 3072 2649 - 3072 00:12:50-01:11:25 Infill 16 Valid Line aborted dt whales
 Remarks:      
   Navigation Streamer depth at 7.0m. Line aborted dt. whales    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1016mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP. Strong ground roll noise present.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2617 - 3046 2617 - 3046 1 1100  
  3047 - 3406 3047 - 3406 2 1101  
Stream 2
   Shot(s) Files Deck Reel Remark
  2617 - 3046 2617 - 3046 3 1100  
  3047 - 3406 3047 - 3406 4 1101  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1476 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 1657, 2307, 2641, 2782 Spiking Trace(s)  
ALL     ALL 1495 Noisy Trace(s)  
ALL     ALL- 2662 Killed traces  
2655-2665     2655-2665 2259-2275 Bird depth out of spec Bird C7-4
2659-2667     2659-2667 2283-2299 Bird depth out of spec Bird C7-5
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2034 Crossfeed Occasionally fails crossfeed
ALL     ALL 1, 5, 369-371, 737-739, 741-742, 744-745, 1105-1106, 1108-1113, 1473, 1841-1850, 1852, 2209-2211, 2213-2214 Slope alarm > 5% of total line
2680-2700     2680-2700 2651-2667 Bird depth out of spec Bird C8-5
2693     2693 ALL Gun timing error Gun 3-1 error (ms) : -1.6
Comment
Shot(s)     File(s) Trace(s) Type Remark
3072     3072 ALL LGSP Last good shotpoint before line aborted dt whale


 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 01:41:53utc 14-Feb-2002