ACQUISITION REPORT Sequence-0001
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A2752A001
  Preplot G01A2752
  Direction 18.0°
  SOL Date 04:23:20utc 20-Oct-2001
  EOL Date 06:26:24utc 21-Oct-2001
 Attributes:  
   Wind Force 4.0 [knots] Dir ENE
   Swell Height 1.0 [meters] Dir N
   Propellor rpm 121 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 51.6 42.3 [meters]
   Bottomspeed  4.0 4.4 [knots]
   Featherangle port -5.2 port -2.2 [deg]
   Cable noise 5.98 0.0 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Port Volume 3542 3347  
   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 2.0 0001 0001-0001 0001 0001 - 0001 0.00
2 NFH SEGD 8015, Rev.2 NONE 6.0 0.25 0036 0001-0036 0036 0001 - 0036 0.00
3 NFH SEGD 8015, Rev.2 NONE 6.0 0.25 0036 0001-0036 0036 0001 - 0036 0.00
4 NFH SEGD 8015, Rev.2 NONE 6.0 0.25 0001 0001-0001 0001 0001 - 0001 0.00
5 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0001-0368 0368 0001 - 0368 5.60
6 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0369-0736 0368 0369 - 0736 5.60
7 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 0737-1104 0368 0737 - 1104 5.60
8 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1105-1472 0368 1105 - 1472 5.60
9 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1473-1840 0368 1473 - 1840 5.60
10 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 1841-2208 0368 1841 - 2208 5.60
11 SEIS SEGD 8015, Rev.2 NONE 6.0 2.0 0368 2209-2576 0368 2209 - 2576 5.60
12 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)   1925 - 1932  
   SOL Dummy Record(s) 1933 - 2345 1933 - 2345 03:21:52 - 04:23:11
   FSP Start of Line 2346 2346 04:23:20
   MSP      
   LSP End of Line 3918 3918 06:26:24
   EOL Dummy Record(s)      
   EOL Noise Record(s)   3919 - 3920  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    2346 - 2434 2346 - 2434 04:23:20-04:36:39 Prime 0 Scratched Soft start-up after Whale sighting
    2435 - 3918 2435 - 3918 04:36:47-06:26:24 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth 7.0m, STB Guns firing on ODD SP.    
   Recording QC Filter delay 5.6ms. Frontsheet Set 1. Bird 8-1 constantly deep, 8.1-8.4m. Gundepth calibrated at atmospheric pressure 1004mB, preassure now 1025mB. No EOL Noise record.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  2340 - 2769 2340 - 2769 2 1  
  2770 - 3199 2770 - 3199 1 2  
  3200 - 3629 3200 - 3629 2 3  
  3630 - 3918 3630 - 3918 1 4  
Stream 2
   Shot(s) Files Deck Reel Remark
  2340 - 2769 2340 - 2769 3 1  
  2770 - 3199 2770 - 3199 4 2  
  3200 - 3629 3200 - 3629 3 3  
  3630 - 3918 3630 - 3918 4 4  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1191, 2764, 2806 Weak Trace(s) Trace signal less than -3dB of nominal value
ALL     ALL 304, 1495, 2775 Noisy Trace(s)  
ALL     ALL 1948 Spiking Trace(s)  
2346-2434     2346-2434 ALL Whale Sighting Whale Sighting
2494     2494 ALL Gun timing error Gun 5-4 error (ms) : -2.6
2526     2526 ALL Gun timing error Gun 5-4 error (ms) : -2.0
2558     2558 ALL Gun timing error Gun 5-4 error (ms) : -2.5
2608     2608 ALL Gun timing error Gun 5-4 error (ms) : -2.6
2612     2612 ALL Gun timing error Gun 5-4 error (ms) : -2.0
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1-9, 11-12, 369-374, 377, 737-745, 747-749, 751, 1105-1113, 1126, 1473, 1841, 2209-2211, 2577 Slope alarm > 5% of total line
2480     2480 ALL Gun timing error Gun 5-4 error (ms) : -1.1
2498     2498 ALL Gun timing error Gun 5-4 error (ms) : -1.1
2560     2560 ALL Gun timing error Gun 5-3 error (ms) : 1.1
2560     2560 ALL Gun timing error Gun 5-4 error (ms) : -1.1
2562     2562 ALL Gun timing error Gun 5-3 error (ms) : 1.1
2593     2593 ALL Gun timing error Gun 3-2 error (ms) : -1.7
2610     2610 ALL Gun timing error Gun 5-3 error (ms) : 1.1
3051     3051 ALL Gun timing error Gun 3-2 error (ms) : -1.7
Comment
Shot(s)     File(s) Trace(s) Type Remark
2435     2435 ALL Line data FIRST GOOD SHOTPOINT
2613-3918     2613-3918 ALL Gun disabled Gun 5-4. Source volume at shot 2613 : 3347 cu.in.
3489     3489 ALL NFH NFH 3-5 & 3-6 replaced with GSAP reference signals


 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 19:46:35utc 22-Oct-2001