ACQUISITION REPORT Sequence-0335
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4784A335
  Preplot G01A4784
  Direction 198.0°
  SOL Date 11:35:37utc 27-Mar-2002
  EOL Date 13:58:20utc 27-Mar-2002
 Attributes:  
   Wind Force 17.0 [knots] Dir SSW
   Swell Height 1.5 [meters] Dir S
   Propellor rpm 122 [avg]  
   Propellor pitch 70 [avg]  
       
  SOL EOL  
   Waterdepth 67.0 110.0 [meters]
   Bottomspeed  3.6 3.6 [knots]
   Featherangle sb +8.2 sb +2.8 [deg]
   Cable noise 4.42 15.7 [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)   4218 - 4217  
   SOL Dummy Record(s) 4216 - 4207 4216 - 4207 11:33:57 - 11:35:27
   FSP Start of Line 4206 4206 11:35:37
   MSP      
   LSP End of Line 3365 3365 13:58:20
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3364 - 3364  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    4206 - 3700 4206 - 3700 11:35:37-12:59:58 Prime 16 Valid  
    3699 - 3365 3699 - 3365 13:00:08-13:58:20 Prime 0 Scratched All data scratch d/t increasing swell noise
 Remarks:      
   Navigation Streamer depth at 7.0m. LGSP 3700 d/t swell noise.    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1017mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP. LGSP of line 3700 d/t swell noise    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  4218 - 3789 4218 - 3789 1 1387  
  3788 - 3364 3788 - 3364 2 1388  
Stream 2
   Shot(s) Files Deck Reel Remark
  4218 - 3789 4218 - 3789 3 1387  
  3788 - 3364 3788 - 3364 4 1388  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2265 Spiking Trace(s)  
ALL     ALL 1159 Noisy Trace(s)  
ALL     ALL 1476 Weak Trace(s) Trace signal less than -6dB of nominal value
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-14, 16-17, 20, 22, 24, 33, 369-383, 390, 393, 405, 737-738, 741-742, 744-761, 763-764, 768-770, 1105-1106, 1108-1113, 1121-1139, 1141, 1144, 1147, 1489, 1841-1853, 1855-1856, 1860, 1863, 1867, 1873, 2209-2226, 2229-2232, 2577-2579, 2581-2589, 2591-2592, 2602 Slope alarm > 5% of total line
ALL     ALL NONE Bird Depth Bird 8-4 deep max 9.3 mtrs
Comment
Shot(s)     File(s) Trace(s) Type Remark
3700     3700 NONE LGSP Last good sp of line d/t increasing swell noise


 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 15:05:17utc 27-Mar-2002