ACQUISITION REPORT Sequence-0178
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2256A178
  Preplot G01A2256
  Direction 18.0°
  SOL Date 04:44:22utc 05-Jan-2002
  EOL Date 09:32:17utc 05-Jan-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir SE
   Swell Height 0.5 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 50.0 38.0 [meters]
   Bottomspeed  4.1 4.5 [knots]
   Featherangle port -7.5 0.0 [deg]
   Cable noise 5.4 5.5 [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)   1508 - 1509  
   SOL Dummy Record(s) 1510 - 1519 1510 - 1519 04:42:54 - 04:44:14
   FSP Start of Line 1520 1520 04:44:22
   MSP      
   LSP End of Line 3587 3587 09:32:17
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3588 - 3589  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1520 - 3587 1520 - 3587 04:44:22-09:32:17 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m    
   Recording QC Bird 5-14 bad d/t. Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1015mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. Tailbouy tugging noise present on all records.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1508 - 1937 1508 - 1937 1 733  
  1938 - 2367 1938 - 2367 1 734  
  2368 - 2797 2368 - 2797 1 735  
  2798 - 3227 2798 - 3227 2 736  
  3228 - 3589 3228 - 3589 1 737  
Stream 2
   Shot(s) Files Deck Reel Remark
  1508 - 1937 1508 - 1937 3 733  
  1938 - 2367 1938 - 2367 4 734  
  2368 - 2797 2368 - 2797 3 735  
  2798 - 3227 2798 - 3227 4 736  
  3228 - 3589 3228 - 3589 3 737  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1657, 2307, 2731 Spiking Traces  
ALL     ALL 1159 Noisy traces  
1509-3588       1255 Killed traces  
1509-3588       1853 Killed traces  
2423     2423 ALL Gun timing error Gun 1-2 error (ms) : -2.0
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2034 Fails Crossfeed  
ALL     ALL 1-7, 9, 12, 369-374, 376-377, 737-742, 744-748, 1105-1113, 1473, 2209-2219 Slope alarm > 5% of total line
1571     1571 NONE Bird depth out of spec Bird C7-3
3181-3196     3181-3196 NONE Bird depth out of spec Bird C2-4
3331     3331 ALL Gun timing error Gun 1-2 error (ms) : -1.8
3352-3358     3352-3358 NONE Bird depth out of spec Bird C7-1
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 21:28:19utc 05-Jan-2002