ACQUISITION REPORT Sequence-0275
 Survey:  
  Client Esso Australia Pty Ltd
  Area Northern Fields 3D
  Vessel GECO_BETA
  JobNumber 9170A
  Survey Type 8 STREAMER DUAL SOURCE
   
 Sequence  
  Linename G01A1840A275
  Preplot G01A1840
  Direction 198.0°
  SOL Date 03:30:44utc 14-Feb-2002
  EOL Date 08:12:41utc 14-Feb-2002
 Attributes:  
   Wind Force 8.0 [knots] Dir SE
   Swell Height 1.0 [meters] Dir SE
   Propellor rpm 122 [avg]  
   Propellor pitch 95 [avg]  
       
  SOL EOL  
   Waterdepth 38.0 45.0 [meters]
   Bottomspeed  4.6 4.2 [knots]
   Featherangle sb +3.2 port -2.8 [deg]
   Cable noise 5.5 5.1 [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)   3067 - 3066  
   SOL Dummy Record(s) 3065 - 3036 3065 - 3036 03:26:48 - 03:30:36
   FSP Start of Line 3035 3035 03:30:44
   MSP      
   LSP End of Line 1028 1028 08:12:41
   EOL Dummy Record(s)      
   EOL Noise Record(s)   1027 - 1026  
 Line-segments:
    SPs Files Times [utc] Type # CMPs Status Remarks
    3035 - 1028 3035 - 1028 03:30:44-08:12:41 Prime 16 Valid  
 Remarks:      
   Navigation Streamer depth at 7.0m.    
   Recording QC Filter delay 5.6ms. Frontsheet Set 4. Gundepth calibrated at atmospheric pressure 1017mB, pressure now 1014mB. SSE functions on TRISOR disabled, GUNPOS block NOT recorded. STB guns firing on ODD SP. Strong ground roll noise present. Sporadic low level paritys on str #5    

Tape-list
Stream 1
   Shot(s) Files Deck Reel Remark
  3067 - 2638 3067 - 2638 1 1102  
  2637 - 2208 2637 - 2208 2 1103  
  2207 - 1778 2207 - 1778 1 1104  
  1777 - 1348 1777 - 1348 2 1105  
  1347 - 1027 1347 - 1027 1 1106  
Stream 2
   Shot(s) Files Deck Reel Remark
  3067 - 2638 3067 - 2638 3 1102  
  2637 - 2208 2637 - 2208 4 1103  
  2207 - 1778 2207 - 1778 3 1104  
  1777 - 1348 1777 - 1348 4 1105  
  1347 - 1027 1347 - 1027 3 1106  

Seismic Data Annotations

NTBP
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL- 2662 Killed traces  
ALL     ALL 1476 Weak Trace(s) Trace signal less than -6dB of nominal value
ALL     ALL 1657, 2307, 2641, 2782, 1991 Spiking Trace(s)  
ALL     ALL 1495 Noisy Trace(s)  
Warning
Shot(s)     File(s) Trace(s) Type Remark
ALL     ALL 2034 Crossfeed Fails crossfeed test
ALL     ALL 9, 737-738, 1105-1106, 1108-1110, 1112-1113, 1473, 1841-1850, 1852, 2209-2211, 2213-2214, 2217 Slope alarm > 5% of total line
1698-1665     1698-1665 ALL Streamer noise Low frequency turn noise affecting first 50 traces on all streamers.
1683-1674     1683-1674 443-459 Bird depth out of spec Bird C2-5
Comment
Shot(s)     File(s) Trace(s) Type Remark
1760     1760 ALL Streamer noise Start deviating to port to avoide platform
1658     1658 ALL Streamer noise Start turning back to line.


 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 08:33:23utc 14-Feb-2002