ACQUISITION REPORT Sequence-0457
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170B
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A4672A457
  Preplot G01A4672
  Direction 18.0°
  SOL Date 20:29:06utc 24-May-2002
  EOL Date 22:47:22utc 24-May-2002
 Attributes:  
   Wind Force 10.0 [knots] Dir ENE
   Swell Height 2.0 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 98 [avg]  
       
  SOL EOL  
   Waterdepth 261.0 116.0 [meters]
   Bottomspeed  4.8 0.0 [knots]
   Featherangle port -3.3 0.0 [deg]
   Cable noise 0.0 0.0 [µBar rms]
   Lowcut filter 3 3 [hz]
   Filter slope 18 18 [dB]
   Port Volume 3542 3542  
   Stbd Volume 3542 3512  

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)      
   SOL Dummy Record(s) 1792 - 1801 1792 - 1801 20:27:51 - 20:28:59
   FSP Start of Line 1802 1802 20:29:06
   MSP 3343    
   LSP End of Line 2853 2853 22:47:22
   EOL Dummy Record(s)      
   EOL Noise Record(s)      
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    1802 - 2851 1802 - 2851 20:29:06-22:47:06 Prime 16 Valid  
    2852 - 2853 2852 - 2853 22:47:14-22:47:22 Prime 0 Scratched Guns stopped after sp 2851 d/t whale sighting
 Remarks:      
   Navigation Streamer depth 7m.    
   Recording QC Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1014mB, pressure now 1032mB.Low frequency strumming Str 6 channels 1841 - 1875. Occassional burst of swell noise present on records,approx 5-10 µB, affecting 5 % of traces. Last good shot point 2851, d/t whale sighting. No EOL noise tests recorded on tape.    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  1790 - 2219 1790 - 2219 1 1861  
  2220 - 2649 2220 - 2649 2 1862  
  2650 - 2853 2650 - 2853 1 1863  
Stream 2
   Shot(s) Files Deck Reel Remark
  1790 - 2219 1790 - 2219 3 1861  
  2220 - 2649 2220 - 2649 4 1862  
  2650 - 2853 2650 - 2853 3 1863  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1857 Noisy Trace(s)  
ALL     ALL 337, 349, 1553, 791 Spiking Trace(s)  
ALL     ALL 353, 377, 744, 2764 Killed traces  
2092-2097     2092-2097 2624-2643 Bird depth out of spec Bird C8-4 max depth 9.4mtrs
2094-2101     2094-2101 2603-2623 Bird depth out of spec Bird C8-3 max depth 9.6mtrs
2110-2125     2110-2125 2259-2275 Bird depth out of spec Bird C7-4 max depth 9.7mtrs
2339     2339 ALL Autofire Gun(s) 3-8
2429-2438     2429-2438 419-435 Bird depth out of spec Bird C2-4 max depth 10mtrs
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 1633 Weak Trace(s) Trace signal less than -6dB of nominal value
1971-1987     1971-1987 NONE Bird depth out of spec Bird C7-8
2185-2197     2185-2197 NONE Bird depth out of spec Bird C1-4
2186-2200     2186-2200 NONE Bird depth out of spec Bird C1-5
2196-2208     2196-2208 NONE Bird depth out of spec Bird C2-6
2249-2266     2249-2266 NONE Bird depth out of spec Bird C8-4
2253-2272     2253-2272 NONE Bird depth out of spec Bird C7-4
2255-2266     2255-2266 NONE Bird depth out of spec Bird C8-5
2277-2290     2277-2290 NONE Bird depth out of spec Bird C8-4
2394-2405     2394-2405 NONE Bird depth out of spec Bird C1-4
2400-2414     2400-2414 NONE Bird depth out of spec Bird C2-4
2666-2690     2666-2690 NONE Bird depth out of spec Bird C3-16
2752-2793     2752-2793 NONE Bird depth out of spec Bird C3-16
2808-2818     2808-2818 NONE Bird depth out of spec Bird C3-16
Comment
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL NONE No bird comms Bird C4-2, C8-18
2340     2340 NONE Gun disabled Gun 3-8 disabled, Stbd array volume now 3512
2851     2851 ALL   Last good shotpoint.


 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 23:18:05utc 28-Jun-2002