ACQUISITION REPORT Sequence-0365
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A3984A365
  Preplot G01A3984
  Direction 198.0°
  SOL Date 14:57:07utc 16-Apr-2002
  EOL Date 18:50:24utc 16-Apr-2002
 Attributes:  
   Wind Force   [knots] $(wind_dir)
   Swell Height 1.0 [meters] Dir S
   Propellor rpm 122 [avg]  
   Propellor pitch 95 [avg]  
       
  SOL EOL  
   Waterdepth 47.0 60.0 [meters]
   Bottomspeed  4.8 4.8 [knots]
   Featherangle port -3.2 sb +0.3 [deg]
   Cable noise 5.7 15.5 [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
0 STBD -345.0 25.0 -6.0 0.0 0 0
0 STBD -345.0 -25.0 -6.0 0.0 0 0

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)   4184 - 4183  
   SOL Dummy Record(s) 4182 - 4173 4182 - 4173 14:55:49 - 14:57:00
   FSP Start of Line 4172 4172 14:57:07
   MSP      
   LSP End of Line 2335 2335 18:50:24
   EOL Dummy Record(s)      
   EOL Noise Record(s)   2334 - 2334  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4172 - 2900 4172 - 2900 14:57:07-17:39:54 Prime 16 Valid  
    2899 - 2335 2899 - 2335 17:40:01-18:50:24 Prime 0 Scratched All data scratch d/t swell noise
 Remarks:      
   Navigation Streamer depth 7m. LGSP 2900 d/t swell noise    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1021mB. ** Note files 4184-4183 are recorded twice at BOT on tape 1546. First set are dummys, second set are SOL noise** LGSP 2900 d/t swell noise    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4184 - 3757 4184 - 3757 1 1546  
  3756 - 3327 3756 - 3327 1 1547  
  3326 - 2897 3326 - 2897 1 1548  
  2896 - 2467 2896 - 2467 2 1549  
  2466 - 2335 2466 - 2335 1 1550  
Stream 2
   Shot(s) Files Deck Reel Remark
  4184 - 3757 4184 - 3757 3 1546  
  3756 - 3327 3756 - 3327 4 1547  
  3326 - 2897 3326 - 2897 3 1548  
  2896 - 2467 2896 - 2467 3 1549  
  2466 - 2335 2466 - 2335 4 1550  

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 11, 22, 1553, 1801, 2265 Spiking Trace(s)  
ALL     ALL 1159, 2871 Noisy Trace(s)  
ALL     ALL 744 Killed Trace Killed Trace
3947-3939     3947-3939 75-98 Streamer depth Streamer depth out of spec Bird C1-5 max depth 9.9m
3942-3931     3942-3931 99-115 Streamer depth Streamer depth out of spec Bird C1-6 max depth 10.2m
3934-3924     3934-3924 123-139 Streamer depth Streamer depth out of spec Bird C1-7 max depth 9.5m
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL NONE Bird comms Bird C8-10 No comms Bird C1-2 Intermittent comms
ALL     ALL NONE Bird Depth Bird C1-1 Intermittent shallow 5.8 mtrs
ALL     ALL 7-15 Noisy Trace(s) Low frequency noise observed throughout line.
3992-3975     3992-3975 NONE Streamer depth Streamer depth out of spec Bird C2-6 max depth 9.0m
3978-3967     3978-3967 NONE Streamer depth Streamer depth out of spec Bird C2-7 max depth 8.7m
3968-3957     3968-3957 NONE Streamer depth Streamer depth out of spec Bird C2-5 max depth 8.8m
3701-3683     3701-3683 NONE Streamer depth Streamer depth out of spec Bird C7-9 max depth 8.5m
3514-2990     3514-2990 ALL Rig bounce Strong reflection seen from nearby platforms.
3368-3357     3368-3357 NONE Bird depth out of spec Streamer depth out of spec Bird C7-9 max depth 8.3m
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 03:03:16utc 17-Apr-2002